CN107194530B

CN107194530B - Electric automobile energy scheduling method and system

Info

Publication number: CN107194530B
Application number: CN201710222887.2A
Authority: CN
Inventors: 刘隽
Original assignee: NIO Co Ltd
Current assignee: NIO Co Ltd
Priority date: 2017-04-07
Filing date: 2017-04-07
Publication date: 2020-09-22
Anticipated expiration: 2037-04-07
Also published as: CN107194530A; WO2018184363A1

Abstract

The invention relates to an electric vehicle energy scheduling method and system, wherein the method comprises the steps of determining a main battery replacement station for replacing batteries of an electric vehicle to be replaced in a preset area and battery replacement batteries distributed to an energy scheduling area; and controlling the charging facility in the idle state to charge the battery replacement, and distributing the charged battery replacement to the main battery replacement station. Compared with the prior art, the distributed energy dispatching area is managed in an overall mode, all charging facilities in the preset area can be fully utilized, the utilization rate of the charging facilities is improved, the charging/battery replacing pressure of the battery replacing station is reduced, and reasonable construction and planning of the battery replacing station in building resource-intensive areas such as cities are facilitated.

Description

Electric automobile energy scheduling method and system

Technical Field

The invention relates to the technical field of electric vehicle charging/battery replacing, in particular to an electric vehicle energy scheduling method and system, a battery rack unit and a battery replacing station.

Background

The energy supply mode of the electric automobile mainly comprises a charging mode and a battery replacement mode, wherein the battery replacement mode refers to the mode that a fully charged modular battery is adopted to directly replace an electricity-deficient battery in the electric automobile, and compared with the charging mode, the energy supply mode can realize the quick energy supply of the electric automobile. Meanwhile, the battery replacement mode is mainly characterized in that a certain number of standby power batteries are configured in the battery replacement station to serve as battery replacement batteries, and the power batteries can also serve as interruptible loads to participate in the power grid demand side response, so that peak clipping and valley filling are realized.

At present, the power conversion station mainly adopts a centralized design, that is, power batteries are placed in the power conversion station in a centralized arrangement mode and are charged in a centralized manner. Although the charging strategy of the battery replacement station is simplified through the centralized design, the capacity and the number of the charging devices in the battery replacement station are gradually increased along with the increase of the charging requirement of the electric automobile, so that the floor area and the power capacity of the battery replacement station are increased, the construction and the development of the battery replacement station are not facilitated, and the increasing charging requirement of the electric automobile cannot be met.

Disclosure of Invention

In order to solve the above problems in the prior art, that is, to solve the technical problem that the capacity and the number of charging devices of a battery replacement station designed in a centralized manner are not easy to expand, the invention provides an electric vehicle energy scheduling method and system, a battery rack unit and a battery replacement station.

In a first aspect, the technical solution of the method for scheduling energy of an electric vehicle in the present invention is:

determining a main battery replacement station for replacing batteries of the electric vehicle to be replaced in a preset area;

determining battery replacement batteries distributed to an energy scheduling area in the preset area by the main battery replacement station, and distributing the battery replacement batteries to the energy scheduling area; the energy scheduling area is a sub-area where the battery replacement station is located in the preset area, and the sub-area comprises one or more charging facilities;

and controlling a charging facility in an idle state in the energy dispatching area to charge the battery swapping battery, and distributing the charged battery swapping battery to the main battery swapping station.

Further, a preferred technical solution provided by the present invention is: the determining of the battery replacement batteries allocated to the energy scheduling area in the preset area by the main battery replacement station specifically includes:

acquiring state information of the charging facility; wherein the status information includes an address of a charging facility, an available charging period, and a charging capacity;

and determining the battery replacement batteries distributed to the energy scheduling area according to the state information of the charging facility, the charging electric quantity required by the battery replacement batteries and the scheduling strategy of the energy scheduling area.

Further, a preferred technical solution provided by the present invention is: the scheduling policy includes an objective function as shown in the following formula:

min(C_s)＝min(C_c+C_r+C_d-C_b)

wherein, the C_s、C_cAnd C_rRespectively the comprehensive cost and charge of the energy dispatching areaCost of electricity, cost of battery replacement, said C_dFor the distribution cost of replacing batteries, C_bAnd participating in the yield of the power grid demand side response for the power change station in the energy dispatching area.

Further, a preferred technical solution provided by the present invention is:

the preset area includes one or more energy scheduling areas.

Further, a preferred technical solution provided by the present invention is:

the method for determining the main battery replacement station for replacing the battery of the electric automobile to be replaced in the preset area specifically comprises the following steps:

and acquiring the running time of the electric automobile to be subjected to power exchange running to the power exchange station in the preset area, and setting the power exchange station corresponding to the minimum value of the running time as a main power exchange station.

Further, a preferred technical solution provided by the present invention is: controlling the power change station in the energy dispatching area to supply power to the power grid so as to participate in response of the power grid demand side, and specifically comprising:

acquiring load electric quantity required by the power grid, stored electric quantity of the battery replacement station and charging electric quantity required by the battery replacement battery;

and determining one or more power supply and switching stations for supplying power to the power grid according to the load electric quantity, the stored electric quantity and the charging electric quantity, and controlling a power battery in the power supply and switching stations to supply power to the power grid or the load of the power supply and switching stations.

In a second aspect, the technical solution of the electric vehicle energy scheduling system of the present invention is:

the main battery replacement station determining module is used for determining a main battery replacement station for replacing batteries of the electric vehicle to be replaced in a preset area;

the battery replacement allocation module is used for determining battery replacement allocated to the energy scheduling area in the preset area by the main battery replacement station; the energy scheduling area is a sub-area where the battery replacement station is located in the preset area, and the sub-area comprises one or more charging facilities;

the battery replacement charging module is used for controlling a charging facility in an idle state in the energy scheduling area to charge the battery replacement;

and the battery replacement battery distribution equipment is used for distributing the battery replacement batteries distributed by the battery replacement battery distribution module to an energy scheduling area and distributing the charged battery replacement batteries to the main battery replacement station.

Further, a preferred technical solution provided by the present invention is: the main battery replacement station determining module comprises an electric automobile running time acquisition unit and a main battery replacement station setting unit;

the electric vehicle running time acquisition unit is used for acquiring the running time of the electric vehicle to be charged from the charging station;

and the main power swapping station setting unit is used for taking the power swapping station corresponding to the minimum value of the running time as the main power swapping station.

Further, a preferred technical solution provided by the present invention is: the battery replacement distribution module comprises a charging facility state information acquisition unit and a battery replacement distribution unit;

the charging facility state information acquisition unit is used for acquiring state information of the charging facility; wherein the status information includes an address of a charging facility, an available charging period, and a charging capacity;

the battery replacement allocation unit is configured to determine the battery replacement batteries allocated to the energy scheduling area according to the state information of the charging facility, the charging amount required by the battery replacement batteries, and the scheduling policy of the energy scheduling area.

Further, a preferred technical solution provided by the present invention is: the system comprises a power grid response control module, a power grid response control module and a power grid response control module, wherein the power grid response control module is used for controlling the power changing station in the energy dispatching area to supply power to the power grid so as to participate in power grid demand side response; the power grid response control module comprises an electric quantity acquisition unit and a power supply control unit;

the power acquisition unit is used for acquiring load power required by the power grid, stored power of the battery replacement station and charging power required by the battery replacement battery;

and the power supply control unit is used for determining one or more power supply and switching stations for supplying power to the power grid according to the load electric quantity, the stored electric quantity and the charging electric quantity, and controlling a power battery in the power supply and switching stations to supply power to the power grid or the load of the power supply and switching stations.

Preferably, the invention also provides another electric vehicle energy scheduling system, which realizes the overall scheduling of electric vehicles, power exchanging stations and charging facilities based on a computer cloud control technology, and adopts the technical scheme that: the system comprises:

a cloud platform;

the dispatching strategy center is connected with the cloud platform and used for providing an electric vehicle energy dispatching strategy for the cloud platform;

the charging facility control equipment is installed on a charging facility, is communicated with the cloud platform, and is used for sending state information to the cloud platform and receiving a charging instruction issued by the cloud platform; the charging facility control equipment controls the charging facility to charge the battery replacement according to the charging instruction;

and the distribution equipment is communicated with the cloud platform and is used for distributing the battery replacement batteries in the battery replacement station to a charging facility and/or distributing the charged battery replacement batteries to the battery replacement station according to a distribution instruction issued by the cloud platform.

Further, a preferred technical solution provided by the present invention is: the system further comprises an in-vehicle electronic device; the vehicle-mounted electronic equipment is mounted on an electric automobile, is communicated with the cloud platform, and is used for sending a battery replacement request to the cloud platform and receiving power station replacement information issued by the cloud platform.

Further, a preferred technical solution provided by the present invention is: the vehicle-mounted electronic equipment, the charging facility control equipment and the distribution equipment are communicated with the cloud platform through a wireless network respectively.

Further, a preferred technical solution provided by the present invention is: the electric vehicle energy scheduling strategy specifically comprises the following steps:

Preferably, the present invention further provides a battery rack unit, which can convert the charging current output by the charging facility into a current usable by the battery to be charged, and the technical scheme is as follows:

the battery frame unit comprises a power supply conversion module and a battery frame; the battery frame unit is used for performing power supply conversion on charging current of a charging facility and transmitting the charging current after the power supply conversion to a battery for charging;

the power supply conversion module is used for performing power supply conversion on the charging current of the charging facility;

the battery rack comprises a supporting platform for placing a battery, and a first interface and a second interface which are arranged on the supporting platform; the first interface is connected with the power supply conversion module and used for receiving the charging current converted by the power supply; the second interface is connected with the electrode terminal of the battery and is used for transmitting the charging current to the battery.

Further, a preferred technical solution provided by the present invention is:

the battery rack unit also comprises a monitoring module; the monitoring module is used for monitoring the charging state of the battery.

Further, a preferred technical solution provided by the present invention is:

the battery rack unit further comprises a communication module; the communication module is communicated with a remote control platform through a wireless network and is used for receiving a charging starting instruction sent by the remote control platform and sending charging state information of the battery to the remote control platform.

Preferably, the present invention further provides a battery replacement station, which includes a power battery charging potential and the battery rack unit in the above technical scheme, and implements interactive communication between a battery and a charging facility, and the technical scheme is as follows:

the charging potential of the power battery is provided with a power supply interface;

the battery frame unit can be placed at a power battery charging position, and the power conversion module in the battery frame unit is connected with the power supply interface in an inserting mode and used for charging the power battery in the battery frame unit.

Compared with the prior art, the technical scheme at least has the following beneficial effects:

1. according to the electric automobile energy scheduling method, the distributed energy scheduling area is managed in an integrated mode, all charging facilities in the preset area can be fully utilized, the utilization rate of the charging facilities is improved, the charging/battery replacing pressure of a battery replacing station is relieved, the battery replacing station is conveniently and reasonably constructed and planned in building resource-intensive areas such as cities, and the like, so that the increasing electric automobile charging/battery replacing requirements are met.

2. According to the energy scheduling system for the electric automobile, the main battery replacement station determining module and the battery replacement battery distributing module can respectively determine the main battery replacement station for replacing the battery of the electric automobile to be replaced in the preset area and the battery replacement batteries distributed to the energy scheduling area, and the battery replacement battery charging module can control the charging facilities in the idle state to charge the battery replacement batteries, so that the distributed charging of the battery replacement batteries is realized, the utilization rate of the idle charging facilities in the energy scheduling area is improved, and the charging/battery replacement pressure of the battery replacement stations is further reduced.

3. The invention provides another electric vehicle energy scheduling system which is based on a computer cloud control technology and realizes the overall scheduling of electric vehicles, battery changing stations and charging facilities by arranging a cloud platform, a scheduling strategy center, vehicle-mounted electronic equipment, charging facility control equipment and distribution equipment.

4. The invention provides a battery rack unit, a power supply conversion module of which can convert charging current output by a charging facility into current usable by a battery to be charged, for example, convert alternating current into direct current; the battery frame can be used as the output end of the battery frame unit and outputs charging current to the battery; the monitoring module can monitor the charging state of the battery in the charging process, and faults such as overcurrent, overvoltage, overheating and the like are prevented.

5. The battery replacing station provided by the invention comprises the battery frame unit in the technical scheme, so that the interactive communication between the battery and the charging facility is realized, the power supply conversion is carried out on the charging current through the battery frame unit, the charging state of the battery is monitored, and the charging efficiency of the charging facility can be improved.

Scheme 1, an electric vehicle energy scheduling method, characterized in that the method comprises:

Scheme 2 and the electric vehicle energy scheduling method according to scheme 1, wherein the determining of the battery replacement batteries allocated to the energy scheduling area in the preset area by the main battery replacement station specifically includes:

Scheme 3, the method for scheduling energy of an electric vehicle according to scheme 2, wherein the scheduling strategy includes an objective function as shown in the following formula:

min(C_s)＝min(C_c+C_r+C_d-C_b)

wherein, the C_s、C_cAnd C_rRespectively the comprehensive cost, the charging cost and the battery replacement cost of the energy dispatching area, wherein C is_dFor the distribution cost of replacing batteries, C_bAnd participating in the yield of the power grid demand side response for the power change station in the energy dispatching area.

Scheme 4, the electric vehicle energy scheduling method according to scheme 1, wherein the preset region includes one or more energy scheduling regions.

Scheme 5, the electric vehicle energy scheduling method according to scheme 1 or 4, wherein the determining of the main battery replacement station for replacing the battery of the electric vehicle to be replaced in the preset area specifically includes:

Scheme 6, the electric vehicle energy scheduling method according to any one of schemes 1 to 4, further comprising: controlling the power change station in the energy dispatching area to supply power to the power grid so as to participate in response of the power grid demand side, and specifically comprising:

Scheme 7, an electric automobile energy dispatch system, characterized in that, the system includes:

The electric vehicle energy scheduling system according to the scheme 8 and the scheme 7 is characterized in that the main battery replacement station determining module comprises an electric vehicle running time acquisition unit and a main battery replacement station setting unit;

Scheme 9 and the electric vehicle energy scheduling system according to scheme 7, wherein the battery replacement allocation module includes a charging facility state information acquisition unit and a battery replacement allocation unit;

The system according to any one of the claims 10 and 7 to 9, characterized in that the system further includes a power grid response control module, configured to control a power conversion station in the energy dispatching area to supply power to a power grid so as to participate in power grid demand side response; the power grid response control module comprises an electric quantity acquisition unit and a power supply control unit;

Scheme 11, an electric automobile energy dispatch system, characterized in that, the system includes:

a cloud platform;

Scheme 12 and the electric vehicle energy dispatching system according to scheme 11, wherein the system further comprises a vehicle-mounted electronic device; the vehicle-mounted electronic equipment is mounted on an electric automobile, is communicated with the cloud platform, and is used for sending a battery replacement request to the cloud platform and receiving power station replacement information issued by the cloud platform.

Scheme 13 and the electric vehicle energy scheduling system according to

scheme

11 or 12, wherein the vehicle-mounted electronic device, the charging facility control device, and the distribution device are respectively in communication with the cloud platform through a wireless network.

Scheme 14 and the electric vehicle energy scheduling system according to scheme 11, wherein the electric vehicle energy scheduling policy specifically includes:

Scheme 15, a battery rack unit, characterized in that the battery rack unit comprises a power conversion module and a battery rack; the battery frame unit is used for performing power supply conversion on charging current of a charging facility and transmitting the charging current after the power supply conversion to a battery for charging;

The battery rack unit according to claim 16 or 15, further comprising a monitoring module; the monitoring module is used for monitoring the charging state of the battery.

Scheme 17, the battery rack unit of claim 15 or 16, further comprising a communication module; the communication module is communicated with a remote control platform through a wireless network and is used for receiving a charging starting instruction sent by the remote control platform and sending charging state information of the battery to the remote control platform.

Scheme 18, a power conversion station, including a power battery charging potential, characterized in that the power conversion station further includes a battery rack unit according to any one of schemes 18-17;

Drawings

FIG. 1 is a flowchart illustrating an implementation of an energy scheduling method for an electric vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an energy scheduling area according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a charging facility charging a rechargeable battery according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of another charging facility for charging a rechargeable battery in accordance with an embodiment of the present invention;

FIG. 5 is a flowchart illustrating another method for scheduling energy of an electric vehicle according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of an electric vehicle energy dispatching system according to an embodiment of the present invention;

fig. 7 is a flowchart of an implementation of a regional power scheduling method according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of another energy dispatching system for an electric vehicle according to an embodiment of the present invention;

wherein, 11: a main battery changing station determining module; 12: a battery replacement distribution module; 13: a battery replacement charging module; 14: battery replacement and distribution equipment; 21: a cloud platform; 22: a power change station; 23: a charging facility; 24: an electric vehicle; 25: an energy scheduling area; 26: a battery holder unit; 31: a cloud platform; 32: a scheduling policy center; 33: a charging facility control device; 34: and (4) dispensing equipment.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

With the increase of the charging demand of the electric automobile, the number of charging facilities in the charging station is gradually increased, and the number of charging facilities in areas other than the charging station, such as residential areas or public areas, is also greatly increased. However, the charging facilities in these areas have a low charging efficiency, for example, the charging facilities installed in residential areas are often in an idle state during the day due to the living habit of residents, while the charging facilities installed in public areas are also often in an idle state due to a high charging cost. In consideration of the characteristic that a modular battery of a battery replacement type electric vehicle has centralized charging and independent charging, the invention provides an electric vehicle energy scheduling method, wherein a battery replacement battery replaced by the battery replacement type electric vehicle is charged through the charging facility with a lower charging utilization rate to serve as an auxiliary power supply of a battery replacement station, so that the charging pressure of the battery replacement station can be reduced. Meanwhile, the area needing to be subjected to electric automobile energy scheduling is divided into a plurality of energy scheduling areas, each energy scheduling area can comprise one battery replacing station and one or more charging facilities in areas except the battery replacing station, and distributed electric automobile energy scheduling is achieved by overall management and scheduling of all energy scheduling areas in the area.

The following describes a method for scheduling energy of an electric vehicle according to an embodiment of the present invention with reference to the accompanying drawings.

Fig. 1 exemplarily shows an implementation flow of an electric vehicle energy scheduling method in the embodiment of the present invention, and as shown in the figure, the energy scheduling method may be implemented for a power-conversion electric vehicle according to the following steps:

step S101: and determining a main battery replacement station for replacing the battery of the electric automobile to be replaced in a preset area.

The preset area in this embodiment refers to an area where energy scheduling of the electric vehicle is required, and may be any area such as a city or a province, and meanwhile, the preset area may include one or more power exchanging stations and charging facilities in an area beyond the one or more power exchanging stations. The main battery replacement station is a battery replacement station designated to replace batteries of electric vehicles in a preset area.

Step S102: and determining the battery replacement batteries distributed to the energy scheduling area by the main battery replacement station. The determining of the battery swapping batteries allocated to the energy scheduling areas may include determining the number of each type of battery swapping battery, and the number of the battery swapping batteries allocated to different energy scheduling areas may be the same or different.

In this embodiment, the energy scheduling region is a sub-region where the power swapping station is located in a preset region. The preset area may include one energy dispatching area or a plurality of energy dispatching areas, all the sub-areas are combined together to form the preset area, each sub-area may include one or more charging facilities, and the charging facilities may be charging facilities installed in residential areas or public areas.

Fig. 2 exemplarily shows an energy scheduling area composition structure in the embodiment of the present invention, as shown in the figure, the energy scheduling area 25 in the embodiment may include one charging station 22 and a plurality of electric vehicle charging areas, each electric vehicle charging area may include at least 1 charging facility 23, and the charging station 21 and the charging facility 23 are respectively in communication with the cloud platform 21. For example, the energy scheduling area 25 in the present embodiment may include one battery replacement station 22, four electric vehicle charging areas, and each electric vehicle charging area may include 3 charging facilities 23. In this embodiment, the cloud platform 21 may perform unified scheduling control on the power conversion station 22, the charging facility 23, and the electric vehicle 24.

Step S103: and controlling the charging facility in the idle state to charge the battery replacement, and distributing the charged battery replacement to the main battery replacement station. In this embodiment, the charging facilities in the idle state refer to charging facilities that do not charge loads such as electric vehicles, and when the power capacity of the battery replacement station is insufficient, the charging facilities in the idle state are used as auxiliary power sources of the battery replacement station to charge battery replacement batteries that need to be charged in the battery replacement station, and when all the battery replacement batteries are charged, the charging facilities are uniformly distributed to the battery replacement station to serve as new full-charge battery replacement batteries for subsequent battery replacement of the electric vehicles. Meanwhile, factors such as actual user requirements or the number of distribution devices can be considered, a unified distribution mode is not adopted, and the charged battery swapping batteries are distributed to the main swapping station one by one, or part of the charged battery swapping batteries are distributed to the main swapping station in a unified mode.

Fig. 3 exemplarily shows an implementation flow of charging the battery swap by the charging facility in the embodiment of the present invention, and as shown in the figure, the embodiment includes n charging facilities 23 for charging the battery swap received by the main battery swap station, where the charging facilities 23 are all conventional charging devices. In this embodiment, the power conversion station 22 and the charging facility 23 may perform information interaction with the cloud platform 21 by using communication technologies such as 3G/4G/5G, may perform information interaction with the cloud platform 21 by using a Wireless local area network (WiFi) technology based on IEEE 802.11b standard, may perform information interaction with the cloud platform 21 by using a TCP communication mode, may perform information interaction with the cloud platform 21 by using a BT communication mode, and may perform information interaction with the cloud platform 21 by using a low power consumption local area network (ZigBee) technology based on IEEE802.15.4 standard.

As can be seen from the foregoing step S101, the preset area may include a plurality of energy scheduling areas, and each energy scheduling area may include a plurality of charging facilities, so that in the embodiment, under the condition that the power capacity of the battery replacement station is insufficient, the charging facilities in the energy scheduling area where the battery replacement station is located are not limited to be used for charging the battery replacement, and the charging facilities in the energy scheduling areas where other battery replacement stations are located may also be used for charging the battery replacement, that is, the energy scheduling of the electric vehicle in the distributed manner may be implemented by performing overall management and scheduling on all energy scheduling areas in the preset area.

According to the energy scheduling method for the electric vehicle, the distributed energy scheduling areas are managed in an overall mode, all charging facilities in the preset areas can be fully utilized, the utilization rate of the charging facilities is improved, the charging/replacing pressure of the replacing station is reduced, and reasonable construction and planning of the replacing station in building resource-intensive areas such as cities are facilitated.

Further, for the method for determining the main battery replacement station for replacing the battery of the electric vehicle to be replaced in the preset area in step S101, the present invention provides a preferred embodiment, which specifically includes: in this embodiment, according to the principle that the shortest time is required for the electric vehicle to be switched to run to each switching station in the preset area in the absence of electricity, the switching station corresponding to the shortest time is used as the main switching station, that is, the running time of the electric vehicle to be switched to run to each switching station is obtained, and the switching station corresponding to the minimum value of the running time is set as the main switching station.

In the implementation, the main power exchange station is determined by adopting the shortest driving time principle, so that the charging reliability of the electric automobile to be charged is improved, and the electric energy resource is saved.

Further, with respect to the method for determining each battery replacement allocated to the energy scheduling area in step S102, the present invention also provides a preferred embodiment, which specifically includes:

(1) and acquiring the state information of the charging facilities in the preset area. In this embodiment, the state information may include an address of the charging facility, an available charging period, and a charging capacity, where the address information may be used to determine a distance between the charging facility and the main battery replacement station, so as to calculate a cost required for distributing the battery replacement batteries; the available charging period information may be used to confirm whether the charging facility is in an idle state; the charging capacity information may be used to confirm a maximum amount of power that the charging facility may charge the battery pack.

(2) And determining the battery replacement batteries distributed to the energy scheduling area according to the state information of the charging facility, the charging electric quantity required by the battery replacement batteries and the scheduling strategy of the energy scheduling area.

The charging electric quantity required by the battery replacement in the embodiment may include the charging electric quantity required by the electric vehicle to be replaced, which is received by the battery replacement station, or may include the charging electric quantity required by the electric vehicle to be replaced, which is possibly received by the battery replacement station within a future period of time. In the embodiment, a conventional user behavior analysis method can be adopted to predict the charging electric quantity required by the electric vehicle to be charged, which is possibly received by the charging station within a period of time in the future.

In this embodiment, the scheduling policies of different energy scheduling areas are mutually independent scheduling policies, each scheduling policy aims at the lowest comprehensive cost, and after determining various battery replacement combinations allocated to the energy scheduling areas according to the state information of the charging facility and the charging electric quantity required by the electric vehicle to be replaced, the scheduling policies respectively calculate the comprehensive cost for charging the battery replacement combinations, compare the comprehensive costs of the groups, and send the battery replacement group corresponding to the minimum comprehensive cost to the energy scheduling area, where the battery replacement group may include one or more battery replacement batteries. Meanwhile, when the comprehensive cost of each group is compared, the combination strategy of each battery replacement can be optimally analyzed by adopting a sensitivity analysis method.

Preferably, in this embodiment, an objective function of the scheduling policy of the energy scheduling region may be shown as the following formula (1), specifically:

min(C_s)＝min(C_c+C_r+C_d-C_b) (1)

wherein, C_s、C_cAnd C_rRespectively the comprehensive cost, the charging cost and the battery replacement cost of the energy dispatching area C_dDistribution cost for battery replacement, C_bAnd participating in the yield of the power grid demand side response for the power change station in the energy dispatching area. Charging cost of energy scheduling area in this embodimentThe charging cost of the battery replacement battery received by the energy scheduling area can be included, and the charging cost of the battery replacement battery possibly received by the energy scheduling area in a future period of time can also be included; the power change cost can include the power change cost of the electric vehicle to be changed, which is received by the energy dispatching area, and can also include the power change cost of the electric vehicle to be changed, which is possibly received by the energy dispatching area within a period of time in the future; the distribution cost comprises the cost of distributing the power-shortage battery replacement batteries from the main battery replacement station to the charging facility for charging and the cost of distributing the charged battery replacement batteries from the charging facility to the main battery replacement station; the benefit of the power change station participating in the power grid demand side response refers to the benefit obtained by the power change station stopping charging/power change of the electric automobile after receiving the load scheduling instruction as an interruptible load and turning to power supply of the power grid demand side, wherein the power change station can also actively stop charging/power change of the electric automobile according to the actual situation of response excitation of the power grid demand side and supply power to the power grid demand side.

Preferably, an embodiment of the present invention further provides a technical solution for controlling a power change station in an energy scheduling area to participate in a response of a demand side of a power grid, and a method for controlling a power change station in an energy scheduling area to participate in a response of a demand side of a power grid in the embodiment is described below, which specifically includes:

1. and acquiring the load electric quantity required by the power grid, the stored electric quantity of the battery replacement station and the charging electric quantity required by the battery replacement battery. The stored electric quantity of the power conversion station can include the electric quantity stored by a power battery in the power conversion station.

2. And determining one or more power supply and switching stations for supplying power to the power grid according to the load electric quantity, the stored electric quantity and the charging electric quantity, and controlling a power battery in the power supply and switching station to supply power to the power grid or a load of the power supply and switching station. As can be seen from the foregoing step S101, the preset area may include a plurality of energy scheduling areas, each energy scheduling area includes one swapping station, in this embodiment, the stored electric quantity of all or part of the swapping stations in the preset area may be considered comprehensively, and one or more swapping stations participating in the response of the power grid demand side are determined in the swapping stations according to the load electric quantity actually required by the power grid, so as to control the power battery in the swapping stations to suspend charging the swapping battery, and adjust to the discharging operation mode, so as to supply power to the load on the power grid demand side. Meanwhile, when the discharging time of the power battery reaches the preset time, the power supply to the load on the power grid demand side is stopped, and the charging of the battery replacement battery is resumed. When the power supply and switching station in the embodiment is used as a switchable load to participate in the response of the power grid demand side, the power battery in the power supply and switching station can also supply power to the load in the power supply and switching station, so that the power supply and switching station can operate normally. Meanwhile, the power supply to the load in the power supply and replacement station can be stopped when the discharging time of the power battery reaches the preset time.

In the embodiment, the power exchanging stations in a plurality of energy dispatching areas can be dispatched, the power exchanging stations are controlled to participate in the response of the power grid demand side, the charging electric quantity required by the power exchanging battery is considered, and the power exchanging stations are flexibly controlled to participate in the response of the power grid demand side under the condition that the battery replacement of an electric vehicle user is not influenced.

In this embodiment, the scheduling policy of the energy scheduling area is targeted at the lowest comprehensive cost, and the optimal combination policy of the battery swapping batteries allocated to the energy scheduling area can be determined, where the comprehensive cost includes charging cost, battery swapping cost, distribution cost, and revenue participating in response of the power grid demand side.

Preferably, this embodiment further provides another embodiment of the method for energy scheduling of an electric vehicle, which is specifically described below with reference to the accompanying drawings.

Fig. 5 exemplarily shows an implementation flow of another electric vehicle energy scheduling method in the embodiment of the present invention, as shown in the figure, the electric vehicle energy management in the embodiment may be performed according to the following steps, specifically:

step S201: and the electric vehicle user sends a battery replacement request to the power system cloud platform.

Step S202: the electric power system cloud platform determines a main power exchange station for battery replacement of the user according to the driving time from the driving of the user to the power exchange station, namely, the approach principle is adopted, and address information of the main power exchange station is sent to the user.

Step S203: the power system cloud platform judges whether the storage capacity of the main power conversion station is sufficient: if the amount is sufficient, step S204 is executed, and if the amount is not sufficient, step S209 is executed.

Step S204: and the power system cloud platform issues a charging instruction to the main battery replacement station to charge the battery replacement battery replaced by the user.

Step S205: the power system cloud platform monitors the load demand of the power grid in real time, and judges whether the power grid side has insufficient load power supply: if the power supply shortage occurs, step S206 is executed, and if the power supply shortage does not occur, step S208 is executed.

Step S206: when the power system cloud platform monitors that the load power supply of the power grid is insufficient, the main power conversion station is controlled to suspend charging the power conversion battery, and the main power conversion station is controlled to supply power to the power grid.

Step S207: when the power system cloud platform monitors that the required electric quantity of the power grid load power supply requirement reaches an expected value or the power supply time for controlling the main power conversion station to supply power to the power grid reaches preset time, the main power conversion station is controlled to stop supplying power to the power grid, and the power conversion battery is continuously charged.

Step S208: when the power system cloud platform monitors that the power grid load is not insufficient in power supply, the main power conversion station is continuously controlled to charge the power conversion battery.

Step 209: the power system cloud platform determines an optimal allocation strategy of the battery replacement batteries according to the state information of the charging facilities, the battery replacement requirements of the users and the scheduling strategy of the energy scheduling area, and allocates the battery replacement batteries to the corresponding charging facilities according to the optimal allocation strategy.

Step S210: and after the power system cloud platform monitors that the battery replacement battery is fully charged, the battery replacement battery is delivered to the main battery replacement station.

In the embodiment, the electric power system cloud platform performs unified scheduling on the electric automobile, the battery replacement station and the charging facility, so that the charging/battery replacement efficiency of the electric automobile is improved.

Although the foregoing embodiments describe the steps in the above sequential order, those skilled in the art will understand that, in order to achieve the effect of the present embodiments, the steps may not be executed in such an order, and may be executed simultaneously (in parallel) or in an inverse order, and these simple variations are within the scope of the present invention.

Based on the same technical concept as the method embodiment, the embodiment of the invention also provides an electric vehicle energy scheduling system. The following describes the energy dispatching system of the electric vehicle in detail with reference to the accompanying drawings.

Fig. 6 exemplarily shows a topology structure of an electric vehicle energy scheduling system in an embodiment of the present invention, and as shown in the drawing, the electric vehicle energy scheduling system in this embodiment may include a main battery swapping station determining module 11, a battery swapping battery distributing module 12, a battery swapping battery charging module 13, and a battery swapping battery distribution device 14. The main battery replacement station determining module 11 is configured to determine a main battery replacement station for replacing a battery of an electric vehicle to be replaced in a preset area; the battery replacement allocation module 12 is configured to determine battery replacement batteries allocated to the energy scheduling area by the main battery replacement station, and distribute the battery replacement batteries to the energy scheduling area; the battery replacement charging module 13 is used for controlling a charging facility in an idle state to charge the battery replacement; the battery replacement distribution equipment 14 is used for distributing the charged battery replacement to the main battery replacement station.

In this embodiment, the main battery replacement station determining module 11 and the battery replacement allocation module 12 may respectively determine a main battery replacement station for replacing a battery of an electric vehicle to be replaced in a preset area and a battery replacement battery allocated to an energy scheduling area, and the battery replacement battery charging module 13 may control a charging facility in an idle state to charge the battery replacement battery, so that distributed charging of the battery replacement battery is realized, the utilization rate of the idle charging facility in the energy scheduling area is improved, and further, the charging/replacing pressure of the battery replacement station is reduced.

Further, in this embodiment, the main battery replacement station determining module 11 may further include an electric vehicle running time acquiring unit and a main battery replacement station setting unit, where the electric vehicle running time acquiring unit is configured to acquire a running time when the electric vehicle to be replaced runs to the battery replacement station, and the main battery replacement station setting unit is configured to use the battery replacement station corresponding to the minimum value of the running time as the main battery replacement station.

Further, in this embodiment, the battery replacement allocation module 12 may further include a charging facility state information acquisition unit and a battery replacement allocation unit, where the charging facility state information acquisition unit is configured to acquire state information of a charging facility; the battery replacement allocation unit is used for determining the battery replacement allocated to the energy scheduling area according to the state information of the charging facility, the charging electric quantity required by the battery replacement and the scheduling strategy of the energy scheduling area.

Preferably, the electric vehicle energy dispatching system in this embodiment may further include a dispatching strategy making module for making a dispatching strategy of the energy dispatching area, where the dispatching strategy making module includes a dispatching objective model shown in formula (3).

Preferably, the energy scheduling system of the electric vehicle in this embodiment may further include a power grid response control module for controlling the power conversion station in the energy scheduling area to supply power to the power grid, so as to control the power conversion station to participate in power grid demand side response. The power grid response control module comprises an electric quantity acquisition unit and a power supply control unit, wherein the electric quantity acquisition unit is used for acquiring load electric quantity required by a power grid, stored electric quantity of a battery replacement station and charging electric quantity required by a battery replacement battery; and the power supply control unit is used for determining one or more power supply and battery changing stations for supplying power to the power grid according to the load electric quantity, the stored electric quantity and the charging electric quantity, and controlling the battery changing batteries in the power supply and battery changing stations to supply power to the power grid or the load of the power supply and battery changing stations.

The embodiment of the energy scheduling system of the electric vehicle may be used to execute the embodiment of the energy scheduling method of the electric vehicle, and the technical principle, the technical problems solved, and the generated technical effects are similar, and it can be clearly understood by those skilled in the art that for convenience and brevity of description, the specific working process and the related description of the energy scheduling of the electric vehicle described above may refer to the corresponding process in the embodiment of the energy scheduling method of the electric vehicle, and are not described herein again.

Those skilled in the art will appreciate that the above-described electric vehicle energy dispatching system also includes some other known structures, such as processors, controllers, memories, etc., wherein the memories include, but are not limited to, ram, flash, rom, prom, volatile, nvm, serial, parallel, or registers, etc., and the processors include, but are not limited to, CPLD/FPGA, DSP, ARM processor, MIPS processor, etc., and such known structures are not shown in fig. 6 in order to unnecessarily obscure embodiments of the present disclosure.

It should be understood that the number of individual modules in fig. 6 is merely illustrative. The number of modules may be any according to actual needs.

Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Based on the above embodiment of the electric vehicle energy scheduling method and the embodiment of the electric vehicle energy scheduling system, the embodiment of the invention also provides a regional electric energy scheduling method, the method firstly uses the battery replacement station in a large region as a core, the large region is divided into a plurality of grid regions, the grid regions are mutually independent and combined together to form the whole large region, wherein the large region refers to a region at least containing two battery replacement stations, for example, a city containing two battery replacement stations. Then, the electric energy demand of each grid area on electric vehicle charging/battery changing and the electric energy stored in the battery changing station and the charging facilities in each grid area are monitored, and all grid areas are scheduled in an integrated manner, so that under the condition that the electric energy stored in the battery changing station in one grid area cannot meet the electric vehicle charging/battery changing demand, the battery changing batteries are distributed to the grid areas with available charging facilities, and the available charging facilities are used for charging, wherein the available charging facilities in the embodiment can be the charging facilities in an idle state.

The following describes a regional power scheduling method in an embodiment of the present invention with reference to the accompanying drawings.

Fig. 7 exemplarily shows an implementation flow of a regional power scheduling method in the embodiment of the present invention, and as shown in the drawing, the embodiment may perform regional power scheduling according to the following steps, which specifically include:

step S301: the method comprises the steps of collecting position information of all power changing stations and charging facilities in a preset area, and dividing the preset area into a plurality of grid areas according to the position information, wherein the number of the grid areas is the same as that of the power changing stations, and each grid area comprises one power changing station and one or more charging facilities.

Step S302: collecting state information of charging facilities in each grid area; the status information may include, among other things, the address of the charging facility, the charging period, and the charging capacity.

Step S303: and determining a main power changing station for changing the power of the electric vehicle to be changed according to the running time from the running of the electric vehicle to be changed to the power changing station. In this embodiment, the power conversion station corresponding to the minimum value of the travel time may be set as the main power conversion station.

Step S304: and judging whether to control the main battery replacing station to charge the battery according to the charging electric quantity required by the battery replacing battery and the stored electric quantity of the main battery replacing station.

If the stored electric quantity meets the charging requirement, controlling the main battery replacing station to charge the battery replacing battery; and if the stored electric quantity does not meet the charging requirement, distributing the battery replacement battery to the charging facilities which are in an idle state and the stored electric quantity meets the charging electric quantity required by the charging battery replacement battery for charging according to the scheduling strategy of each grid area and the state information of the charging facilities.

Step S305: and monitoring the charging state of the battery replacement batteries distributed to the charging facility, sending a distribution instruction to the distribution equipment when the battery replacement batteries are fully charged, and distributing the battery replacement batteries to the main battery replacement station by the distribution equipment according to the distribution instruction.

Preferably, the scheduling policy of the grid area in this embodiment may adopt an objective function as shown in formula (3).

Preferably, the invention further provides another electric vehicle energy scheduling system, which is based on a computer cloud control technology and realizes overall scheduling of electric vehicles, battery replacement stations and charging facilities, and the electric vehicle energy scheduling system provided by the embodiment is specifically described below with reference to the accompanying drawings.

Fig. 8 illustrates another electric vehicle energy scheduling system in an embodiment of the present invention, and as shown in the figure, the electric vehicle energy scheduling system in this embodiment may include a cloud platform 31, a scheduling policy center 32, a charging facility control device 33, and a distribution device 34.

The scheduling policy center 32 is connected to the cloud platform 31, and is configured to provide an electric vehicle energy scheduling policy to the cloud platform 31. The cloud platform 31 and the scheduling policy center 32 may be two independent servers, or may be integrally designed in one server system. In this embodiment, the scheduling policy center 32 may formulate an electric vehicle energy scheduling policy according to the electric vehicle energy scheduling method provided by the above technical solution, specifically, the scheduling policy center may include:

(1) and determining a main battery replacement station for replacing the battery of the electric automobile to be replaced in a preset area.

(2) And determining battery replacement batteries distributed to an energy scheduling area in a preset area by the main battery replacement station, and distributing the battery replacement batteries to the energy scheduling area.

(3) And controlling the charging facilities in idle states in the energy dispatching area to charge the battery cells, and distributing the charged battery cells to the main battery changing station.

The embodiment of the energy scheduling policy of the electric vehicle may be used to execute the embodiment of the energy scheduling method of the electric vehicle, and the technical principle, the technical problems solved, and the generated technical effects are similar, and it can be clearly understood by those skilled in the art that for convenience and brevity of description, the specific working process and the related description of the energy scheduling policy of the electric vehicle described above may refer to the corresponding process in the embodiment of the energy scheduling method of the electric vehicle, and are not described herein again.

Further, in a preferred technical solution provided in this embodiment, the energy dispatching system of the electric vehicle may further include a vehicle-mounted electronic device. In this embodiment, the vehicle-mounted electronic device may be installed on the electric vehicle and communicate with the cloud platform, and is configured to send a battery replacement request to the cloud platform 31 and receive the power exchange station information issued by the cloud platform 31. By arranging the vehicle-mounted electronic equipment, the electric vehicle user can communicate with the cloud platform 31 conveniently, available power station information can be acquired, and charging efficiency is improved. Meanwhile, in the present embodiment, the vehicle-mounted electronic device, the charging facility control device 33, and the distribution device 34 may respectively communicate with the cloud platform 31 through a wireless network, such as a 3G network, and the cloud platform 31 is facilitated to remotely control the charging facility control device 33, the distribution device 34, and the vehicle-mounted electronic device by using a wireless communication manner.

Preferably, the embodiment of the present invention further provides a battery holder unit, which can convert the charging current output by the charging facility into a charging current usable by the battery to be charged. In this embodiment, the battery to be charged may be a battery replacement battery of an electric vehicle, and the battery rack unit is specifically described below.

The battery rack unit in this embodiment may include a power conversion module and a battery rack.

The power conversion module can be used for performing power conversion on the charging current of the charging facility. In this embodiment, the power conversion module may adopt an AC/DC conversion module, that is, an AC charging current output by the charging facility is converted into a DC charging current, or may adopt a DC/DC conversion module to perform power conversion, such as voltage level conversion or power conversion, on a DC charging power output by the charging facility.

Fig. 3 exemplarily shows a structure of a battery rack unit in the present embodiment, and as shown in the drawing, the battery rack unit 26 in the present embodiment may be connected to a charging facility 23, and may also perform information interaction with the cloud platform 21 through a 3G/4G communication technology. The power swapping station 22 can also perform information interaction with the cloud platform 21 through a 3G/4G communication technology.

In this embodiment, the power conversion module in the battery rack unit 26 is an AC/DC energy storage converter, and can convert the AC charging current output by the charging facility 23 into a DC charging current. As shown in fig. 3, the present embodiment may include n charging facilities 23 and battery rack units CAN-C1-CAN-Cn, wherein AC/DC energy storage converters 1# -n # in the battery rack units CAN-C1-CAN-Cn are respectively connected to the n charging facilities 23, and CAN perform power conversion on the charging currents P1-P2 output by the charging facilities 23.

Fig. 4 exemplarily shows another structure of the battery rack unit in the present embodiment, as shown in the drawing, the battery rack unit 26 in the present embodiment may be connected to a charging facility 23, and meanwhile, may also perform information interaction with the cloud platform 21 through a 3G/4G communication technology. The power swapping station 22 can also perform information interaction with the cloud platform 21 through a 3G/4G communication technology.

In this embodiment, the power conversion module in the battery rack unit 26 is a DC/DC energy storage converter, and can perform power conversion on the DC charging current output by the charging facility 23, for example, the DC charging current output by the charging facility 23 can be reduced to a DC charging current with a lower voltage level. As shown in fig. 4, in this embodiment, the charging facility includes n charging facilities 23 and battery rack units CAN-C1-CAN-Cn, and the DC/DC energy storage converters 1# -n # in the battery rack units CAN-C1-CAN-Cn are respectively connected to the n charging facilities 23, so as to convert the charging currents P1-P2 output by the charging facilities 23.

The battery rack comprises a supporting platform for placing a battery, and a first interface and a second interface which are arranged on the supporting platform. The first interface can be connected with the power supply conversion module and used for receiving the charging current after power supply conversion; the second interface may be connected to electrode terminals of the battery for transmitting the charging current after the power conversion to the battery.

Further, in a preferred technical solution provided in this embodiment, the battery rack unit may further include a monitoring module for monitoring a charging state of the battery, and the monitoring module in this embodiment may adopt a battery energy management system BMS, and may prevent a fault such as overcurrent, overvoltage, overheat, and the like from occurring by monitoring the charging state of the battery, and may also monitor a charging state of the battery.

Fig. 3 and 4 respectively illustrate an exemplary monitoring module in the battery rack unit of the present embodiment, and as shown in the figure, the present embodiment may include n battery rack units CAN-C1-CAN-Cn, each of which includes a battery energy management system BMS for monitoring the charging state of the battery pack, and the battery energy management system BMS may transmit the charging states SOC 1-SOCn of the battery packs in the respective battery rack units to the cloud platform 21 through a 3G/4G communication technology.

Further, in a preferred technical solution provided in this embodiment, the battery rack unit may further include a communication module, where the communication module communicates with the remote control platform through a wireless network, and is configured to receive a charging start instruction issued by the remote control platform and send charging state information of the battery to the remote control platform. In this embodiment, after the communication module receives the charging start instruction, the battery holder unit is electrically connected to the charging facility, performs power conversion on the charging current of the charging facility, and transmits the charging current after power conversion to the battery for charging.

Preferably, an embodiment of the present invention further provides a battery swapping station, where the battery swapping station includes a power battery charging potential and a battery rack unit in the foregoing technical solution, and the interactive communication between a battery and a charging facility is implemented, and the following describes the battery swapping station provided in this embodiment, specifically: the power battery charging level is provided with a power supply interface, the battery frame unit can be placed in the power battery charging level, and a power conversion module in the battery frame unit is connected with the power supply interface in an inserting mode and used for charging the power battery in the battery frame unit.

In this embodiment, the charging station performs power conversion on the charging current through the battery rack unit, and the battery rack unit can convert the charging current output by the charging facility in the charging station into the charging current available for the charging battery, such as converting an alternating current charging current into a direct current charging current, and also can reduce or increase the amplitude of the charging current. Meanwhile, the battery frame unit can also monitor the charging state of the battery and send the charging state information to the remote control platform, and the remote control platform monitors the state of the battery according to the received charging state information, so that faults such as overcurrent, overvoltage and overheating are prevented. In this embodiment, the battery rack unit is arranged in the battery replacement station, so that not only can the charging efficiency of the charging facility be improved, but also the charging control strategy of the battery replacement station can be simplified, and the working stability of the battery replacement station is improved.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components in a server, client, or the like, according to embodiments of the present invention. The present invention may also be embodied as an apparatus or device program (e.g., PC program and PC program product) for carrying out a portion or all of the methods described herein. Such a program implementing the invention may be stored on a PC readable medium or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed PC. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims

1. An electric vehicle energy scheduling method, characterized in that the method comprises:

determining battery replacement batteries distributed to an energy scheduling area in the preset area by the main battery replacement station, and distributing the battery replacement batteries to the energy scheduling area; the energy scheduling area is a sub-area where the battery replacement station is located in the preset area, and the sub-area comprises the battery replacement station and one or more charging facilities located in an area outside the battery replacement station;

controlling a charging facility in an idle state in the energy dispatching area to charge the battery swapping battery, and distributing the charged battery swapping battery to the main battery swapping station;

the number of the energy scheduling areas is multiple, and all the energy scheduling areas are combined together to form the preset area.

2. The electric vehicle energy scheduling method of claim 1, wherein the determining of the battery replacement batteries allocated to the energy scheduling area in the preset area by the main battery replacement station specifically comprises:

3. The electric vehicle energy scheduling method of claim 2, wherein the scheduling policy comprises an objective function as shown in the following formula:

min(C_s)＝min(C_c+C_r+C_d-C_b)

4. The electric vehicle energy scheduling method of claim 1, wherein the determining of the main battery replacement station for replacing the battery of the electric vehicle to be replaced in the preset area specifically comprises:

5. The electric vehicle energy scheduling method of any one of claims 1-3, further comprising: controlling the power change station in the energy dispatching area to supply power to the power grid so as to participate in response of the power grid demand side, and specifically comprising:

6. An electric vehicle energy dispatching system, the system comprising:

the battery replacement allocation module is used for determining battery replacement allocated to the energy scheduling area in the preset area by the main battery replacement station; the energy scheduling area is a sub-area where the battery replacement station is located in the preset area, and the sub-area comprises the battery replacement station and one or more charging facilities located in an area outside the battery replacement station;

the battery replacement distribution equipment is used for distributing the battery replacement batteries distributed by the battery replacement battery distribution module to an energy scheduling area and distributing the charged battery replacement batteries to the main battery replacement station;

7. The electric vehicle energy scheduling system of claim 6, wherein the main battery replacing station determining module comprises an electric vehicle running time acquisition unit and a main battery replacing station setting unit;

8. The electric vehicle energy dispatching system of claim 6, wherein the battery replacement allocation module comprises a charging facility state information acquisition unit and a battery replacement allocation unit;

9. The electric vehicle energy dispatching system of any one of claims 6-8, further comprising a grid response control module, configured to control the power conversion stations in the energy dispatching area to supply power to the power grid to participate in grid demand side response; the power grid response control module comprises an electric quantity acquisition unit and a power supply control unit;

10. An electric vehicle energy dispatching system, the system comprising:

a cloud platform;

the distribution equipment is communicated with the cloud platform and used for distributing the battery replacement batteries in the battery replacement station to a charging facility according to a distribution instruction issued by the cloud platform and/or distributing the charged battery replacement batteries to the battery replacement station;

the electric vehicle energy scheduling strategy specifically comprises the following steps:

11. The electric vehicle energy dispatching system of claim 10, further comprising onboard electronics; the vehicle-mounted electronic equipment is mounted on an electric automobile, is communicated with the cloud platform, and is used for sending a battery replacement request to the cloud platform and receiving power station replacement information issued by the cloud platform.

12. The electric vehicle energy dispatching system of claim 11, wherein the on-board electronics device, charging facility control device, and distribution device each communicate with the cloud platform over a wireless network.