CN112124103A - Multi-gun power distribution direct-current charger protection system - Google Patents
Multi-gun power distribution direct-current charger protection system Download PDFInfo
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- CN112124103A CN112124103A CN202011081772.4A CN202011081772A CN112124103A CN 112124103 A CN112124103 A CN 112124103A CN 202011081772 A CN202011081772 A CN 202011081772A CN 112124103 A CN112124103 A CN 112124103A
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- charging
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- current contactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/11—DC charging controlled by the charging station, e.g. mode 4
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application provides a rifle power distribution direct current charger protection system, the system includes: the charging device comprises at least two charging guns, at least two groups of charging modules, a plurality of direct current contactors and at least two high-power diodes; the number of the charging guns is the same as that of the charging modules; the number of the direct current contactors is n + n + (n-1) + … … +1, wherein n is the number of the charging guns, and the direct current contactors are respectively connected between each charging module and each charging gun; the high-power diode is connected between the direct current contactor and the charging gun. The protection system connects the charging guns and the charging modules with the DC contactors in pairs, and allocates the power of the charging modules to each charging gun by selecting the on-off state of the DC contactors; the high-power diode is arranged between the direct current contactor and the charging gun, so that the current of the charger can only flow through one direction of the diode for one-way conduction, and the current cannot be communicated with other charging guns. The protection system has the characteristics of simplicity in operation, safety and reliability.
Description
Technical Field
The invention belongs to the technical field of chargers, and particularly relates to a protection system of a multi-gun power distribution direct current charger.
Background
The charging power of the multi-gun power distribution direct current charger needs to be flexibly scheduled in the charging process, the relay on the main control unit is controlled through software to drive the direct current contactor to switch so as to achieve flexible scheduling of the charging power, however, batteries of equipment can be connected in parallel instantly when the direct current contactors with power distribution malfunction in the scheduling process, batteries with high voltage can be discharged instantly to batteries with low voltage due to inconsistent battery pack voltages of a plurality of vehicles, and the current is very large, so that the vehicles or the equipment can be easily damaged.
Disclosure of Invention
The invention provides a multi-gun power distribution direct-current charger protection system, which is used for solving the technical problem that batteries of a new energy automobile are connected in parallel instantly when a direct-current contactor with power distribution malfunctions in the process of mutual scheduling of charging power.
In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:
the protection system for the multi-gun power distribution direct-current charger comprises: the charging device comprises at least two charging guns, at least two groups of charging modules, a plurality of direct current contactors and at least two high-power diodes;
the number of the charging guns is the same as that of the charging modules;
the number of the direct current contactors is n + n + (n-1) + … … +1, wherein n is the number of the charging guns, and the direct current contactors are respectively connected between each charging module and each charging gun;
the high-power diode is connected between the direct current contactor and the charging gun.
Preferably, the number of the charging gun, the charging module, the direct current contactor and the high-power diode is respectively 4, 10 and 4.
Based on the above embodiment, it can be seen that the present invention provides a protection system for a multi-gun power distribution dc charger, and the system includes: the system comprises: the charging device comprises at least two charging guns, at least two groups of charging modules, a plurality of direct current contactors and at least two high-power diodes; the number of the charging guns is the same as that of the charging modules; the number of the direct current contactors is n + n + (n-1) + … … +1, wherein n is the number of the charging guns, and the direct current contactors are respectively connected between each charging module and the charging guns; the high-power diode is connected between the direct current contactor and the charging gun. Connecting direct current contactors between every two charging guns and the charging modules, and flexibly allocating the power of the charging modules to each charging gun by flexibly selecting the on-off state of the direct current contactors; the high-power diode is arranged between the direct current contactor and the charging gun, so that the current of the charger can only flow through one direction of the diode for unidirectional conduction, and the current cannot be communicated with the other charging gun, and the technical problem that batteries of a new energy automobile are connected in parallel instantly when the direct current contactor with power distribution malfunctions in the mutual dispatching process of charging power is solved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a protection system of a multi-gun power distribution dc charger according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic diagram of a protection system of a multi-gun power distribution dc charger according to an embodiment of the present invention, and the protection system of the multi-gun power distribution dc charger according to the present invention is explained in detail with reference to fig. 1.
As shown in fig. 1, the on-line monitoring system of the conveyor includes: the charging device comprises at least two charging guns, at least two groups of charging modules, a plurality of direct current contactors and at least two high-power diodes.
Specifically, the number of charging guns is the same as the number of charging modules. The number of the direct current contactors is n + n + (n-1) + … … +1, wherein n is the number of the charging guns, and the direct current contactors are respectively connected between each charging module and each charging gun. The high-power diode is connected between the direct current contactor and the charging gun.
As a preferred implementation manner of the embodiment of the present application, the number of the charging gun, the number of the charging module, the number of the direct current contactor, and the number of the high-power diodes are respectively 4, 10, and 4. The working principle of the multi-gun power distribution direct current contactor is described below by using 4 charging guns, 4 charging modules, 10 direct current contactors and 4 high-power diodes respectively.
As shown in fig. 1, the multi-gun power distribution dc charger includes four charging guns (a charging gun, B charging gun, C charging gun and D charging gun) and four groups of charging modules (a group charging module, B group charging module, C group charging module and D group charging module), ten dc contactors K1-K10 are respectively connected between each group of charging modules and the charging gun, and the required number of charging modules is flexibly allocated to each charging gun by selecting on/off of each dc contactor. The first direct current contactor K1 is connected between the group A charging modules and the group A charging gun, and when the first direct current contactor K1 is closed, the group A charging modules are connected with the group A charging gun in a conduction mode; the second direct current contactor K2 is connected between the charging modules in the group B and the charging gun in the group B, and when the second direct current contactor K2 is closed, the charging modules in the group B are connected with the charging gun in the group B in a conduction manner; the third direct current contactor K3 is connected between the C group of charging modules and the C group of charging guns, and when the third direct current contactor K3 is closed, the C group of charging modules are connected with the C group of charging guns in a conduction mode; the fourth direct current contactor K4 is connected between the D group of charging modules and the D group of charging guns, and when the third direct current contactor K4 is closed, the D group of charging modules are connected with the D group of charging guns in a conduction mode; the fifth direct current contactor K5 is connected between the charging modules in the group A and the charging guns in the group B, and when the fifth direct current contactor K5 and the first direct current contactor KA are closed simultaneously, the charging modules in the group B are connected with the charging guns in the group A in a conduction mode; when the fifth direct current contactor K5 and the second direct current contactor KB are closed simultaneously, the charging modules in the group A are connected with the charging guns in the group B in a conduction mode; the sixth direct current contactor K6 is connected between the charging modules in the B group and the charging gun in the C group, and when the sixth direct current contactor K6 and the third direct current contactor KC are closed simultaneously, the charging modules in the B group are connected with the charging gun in the C group in a conduction mode; when the sixth direct current contactor K6 and the second direct current contactor KB are closed simultaneously, the charging modules in the group C are connected with the charging gun in the group B in a conduction mode; the seventh direct current contactor K7 is connected between the charging modules in the group C and the charging gun in the group D, and when the seventh direct current contactor K7 and the fourth direct current contactor KD are closed simultaneously, the charging modules in the group C are connected with the charging gun in the group D in a conduction mode; when the seventh direct current contactor K7 and the third direct current contactor KC are closed simultaneously, the charging modules in the group D are connected with the charging gun in the group C in a conduction mode; when the eighth direct current contactor K8 and the fourth direct current contactor KD are closed simultaneously, the charging modules in the group B are connected with the charging gun in the group D in a conduction mode; when the eighth direct current contactor K8 and the second direct current contactor KB are closed simultaneously, the charging modules in the group D are connected with the charging gun in the group B in a conduction mode; when the eighth direct current contactor K8 and the fourth direct current contactor KB are closed simultaneously, the charging modules in the group D are connected with the charging gun in the group B in a conduction mode; when the eighth direct current contactor K8 and the second direct current contactor KD are closed simultaneously, the charging modules in the group B are connected with the charging gun in the group D in a conduction mode; when the ninth direct current contactor K9 and the first direct current contactor KA are closed simultaneously, the charging module in the group C is connected with the charging gun A in a conduction mode; when the ninth direct current contactor K9 and the third direct current contactor KC are closed simultaneously, the charging module in the group A is connected with the charging gun in the group C in a conduction mode; when the tenth direct current contactor K10 and the first direct current contactor KA are closed simultaneously, the charging modules in the group D are connected with the charging gun A in a conduction mode; when the tenth direct current contactor K10 and the fourth direct current contactor KD are closed simultaneously, the charging modules in the group A are connected with the charging guns in the group D in a conduction mode; when the fifth direct current contactor K5, the sixth direct current contactor K6 and the first direct current contactor KA are closed simultaneously, the charging modules in the group B and the charging modules in the group C are connected with the charging gun in the group A in a conduction mode; when the fifth direct current contactor K5, the sixth direct current contactor K6 and the third direct current contactor KC are closed simultaneously, the charging modules in the group A and the charging modules in the group B are connected with the charging gun in the group C in a conduction mode; when the sixth direct current contactor K6, the seventh direct current contactor K7 and the fourth direct current contactor KD are closed simultaneously, the charging modules in the group B and the charging modules in the group C are connected with the charging gun in the group D in a conduction mode; when the sixth direct current contactor K6, the seventh direct current contactor K7 and the third direct current contactor KB are closed simultaneously, the charging modules in the group C and the charging modules in the group D are connected with the charging gun in the group B in a conduction mode; when the fifth direct current contactor K5, the sixth direct current contactor K6, the seventh direct current contactor K7 and the first direct current contactor KA are closed simultaneously, the charging modules in the group B, the charging modules in the group C and the charging modules in the group D are connected with the charging gun A in a conduction mode, and the charging gun A is charged at the maximum power; when the fifth direct current contactor K5, the sixth direct current contactor K6, the seventh direct current contactor K7 and the second direct current contactor KB are closed simultaneously, the charging modules in the group A, the charging modules in the group C and the charging modules in the group D are connected with the charging gun in the group B in a conduction mode, and the charging gun in the group B is charged at the maximum power. When the fifth direct current contactor K5, the sixth direct current contactor K6, the seventh direct current contactor K7 and the third direct current contactor KC are closed simultaneously, the charging modules in the group A, the charging modules in the group B and the charging modules in the group D are connected with the charging gun in the group C in a conduction mode, and the charging gun in the group C is charged at the maximum power. When the fifth direct current contactor K5, the sixth direct current contactor K6, the seventh direct current contactor K7 and the fourth direct current contactor KD are closed simultaneously, the charging modules in the group A, the charging modules in the group B and the charging modules in the group C are connected with the charging gun in the group D in a conduction mode, and the charging gun in the group D is charged at the maximum power.
A first high-power diode D1 is arranged between the first direct current contactor K1 and the charging gun A, the first high-power diode D1 is used for enabling the current of the charger to flow through the charging module direction of the first high-power diode D1 in a single direction and be conducted to the charging gun A, and the current cannot be communicated with other charging guns; a second high-power diode D2 is arranged between the second direct current contactor K2 and the charging gun B, and the second high-power diode D2 is used for enabling the current of the charger to flow through the charging gun B in a one-way conduction mode only from the direction of a charging module of the second high-power diode D2, and the current cannot be communicated with other charging guns; a third high-power diode D3 is arranged between the third direct current contactor K3 and the charging gun C, the third high-power diode D3 is used for enabling the current of the charger to flow through a charging module of the third high-power diode D3 in a unidirectional mode only to be conducted to the charging gun C, and the current cannot be communicated with other charging guns; a fourth high-power diode D4 is installed between the fourth dc contactor K4 and the D charging gun, and the fourth high-power diode D4 is used to make the charger current flow through the charging module of the fourth high-power diode D4 only in a single direction to the D charging gun, and the current cannot be communicated with another charging gun.
Since the above embodiments are all described by referring to and combining with other embodiments, the same portions are provided between different embodiments, and the same and similar portions between the various embodiments in this specification may be referred to each other. And will not be described in detail herein.
It should be noted that, unless otherwise specified and limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, mechanically or electrically connected, or may be communicated between two elements, directly or indirectly through an intermediate medium, and specific meanings of the terms may be understood by those skilled in the relevant art according to specific situations. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a circuit structure, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, the presence of an element identified by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or device comprising the element. In addition, as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
The above-described embodiments of the present application do not limit the scope of the present application.
Claims (2)
1. A multi-gun power distribution direct current charger protection system is characterized by comprising: the charging device comprises at least two charging guns, at least two groups of charging modules, a plurality of direct current contactors and at least two high-power diodes;
the number of the charging guns is the same as that of the charging modules;
the number of the direct current contactors is n + n + (n-1) + … … +1, wherein n is the number of the charging guns, and the direct current contactors are respectively connected between each charging module and each charging gun;
the high-power diode is connected between the direct current contactor and the charging gun.
2. The multi-gun power distribution direct current charger protection system according to claim 1, wherein the number of the charging gun, the charging module, the direct current contactor, and the high power diode is 4, 10, or 4, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011081772.4A CN112124103A (en) | 2020-10-12 | 2020-10-12 | Multi-gun power distribution direct-current charger protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011081772.4A CN112124103A (en) | 2020-10-12 | 2020-10-12 | Multi-gun power distribution direct-current charger protection system |
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| CN112124103A true CN112124103A (en) | 2020-12-25 |
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| CN202011081772.4A Pending CN112124103A (en) | 2020-10-12 | 2020-10-12 | Multi-gun power distribution direct-current charger protection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114454763A (en) * | 2022-03-30 | 2022-05-10 | 绿能慧充数字技术有限公司 | Charger power loop abnormity early warning protection method |
| CN115520056A (en) * | 2022-11-22 | 2022-12-27 | 小米汽车科技有限公司 | Charging pile control method and device, storage medium and charging pile |
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| CN104993531A (en) * | 2015-06-29 | 2015-10-21 | 深圳市科陆电子科技股份有限公司 | Double-gun power distribution direct current charger protective device |
| CN108270263A (en) * | 2017-12-30 | 2018-07-10 | 深圳市车电网络有限公司 | A kind of the multiple gun DC charging motor and its charge control method of the arbitrary power dispatching of energy |
| EP3608158A1 (en) * | 2018-08-10 | 2020-02-12 | Beijing X-Charge Co., Ltd. | A multi-plug dc charging pile system and distribution method of its charging power |
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| US20150123613A1 (en) * | 2013-11-06 | 2015-05-07 | Abb Technology Ag | Charger for electric vehicles with distributed power converter arbitration |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454763A (en) * | 2022-03-30 | 2022-05-10 | 绿能慧充数字技术有限公司 | Charger power loop abnormity early warning protection method |
| CN114454763B (en) * | 2022-03-30 | 2023-01-31 | 绿能慧充数字技术有限公司 | Abnormal early warning protection method for charger power loop |
| CN115520056A (en) * | 2022-11-22 | 2022-12-27 | 小米汽车科技有限公司 | Charging pile control method and device, storage medium and charging pile |
| CN115520056B (en) * | 2022-11-22 | 2023-03-10 | 小米汽车科技有限公司 | Charging pile control method and device, storage medium and charging pile |
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