CN109904872A - The grid-connected application system of energy-storage battery group and urban distribution network based on solar energy - Google Patents
The grid-connected application system of energy-storage battery group and urban distribution network based on solar energy Download PDFInfo
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- CN109904872A CN109904872A CN201910256375.7A CN201910256375A CN109904872A CN 109904872 A CN109904872 A CN 109904872A CN 201910256375 A CN201910256375 A CN 201910256375A CN 109904872 A CN109904872 A CN 109904872A
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- energy
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- storage battery
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The grid-connected application system of the embodiment of the invention discloses a kind of energy-storage battery group and urban distribution network based on solar energy, comprising: photovoltaic solar panel, gird-connected inverter, energy-storage battery group, electrical equipment, grid-connected management equipment, urban distribution network system；The photovoltaic solar panel is connect with the gird-connected inverter；The gird-connected inverter is connect with the energy-storage battery group, electrical equipment and grid-connected management equipment, and grid-connected management equipment is connect with urban distribution network system.The electric energy that photovoltaic solar panel generates can be converted to alternating current by gird-connected inverter by the present invention; electricity supply and use equipment and energy storage battery charging; and it can transmit electricity to urban distribution network system; the intelligent management to urban distribution network system power input and output is realized by grid-connected management equipment; it protects gird-connected inverter to be no more than rated power, equipment will not be damaged, energy-storage battery group has parallel function; facilitate the extension of energy-storage battery group, it is the configuration of the present invention is simple, practical.
Description
Technical field
The present invention relates to solar energy storage technical field, especially a kind of energy-storage battery group based on solar energy and city electricity
The grid-connected application system of net.
Background technique
Existing many national urban distribution network combine with energy-storage lithium battery group are applied both at home and abroad at present.Such as
The country such as Australia just has user that the sun can be carried out recycling on daytime, and a part is for directly supplying household electrical appliance, separately
A part to energy-storage battery for charging.Daytime preferentially supplies household electrical appliance in solar energy abundance, remaining solar energy
Then for charging to lithium battery, solar energy more than needed is stored in battery pack.To night, commercial power supply is inadequate or household
When bearing power is larger, it can directly enable lithium battery group and be powered.It uses with upper type, use can be alleviated to a certain extent
Voltage force is used at family, but the grid-connected application of the solar energy storage battery and urban distribution network of the prior art has the disadvantage that
First is that the conversion regime of charge and discharge is relatively simple, the energy stored in solar energy and battery is only limitted to supply to load
The energy stored in remaining solar energy or battery " can not be sold to " power grid by electricity, be cannot achieve the maximum of energy-storage system and utilized；
Second is that internal system algorithm and working method are relatively simple, it is suitable to be arranged according to the consumption habit of user
Period carries out energy storage or conveying, the effect of peak load shifting are unobvious；
Third is that battery capacity is more single, do not have the condition that simultaneously machine increases capacity.
Therefore, the prior art needs to improve.
Summary of the invention
One technical problem to be solved by the embodiment of the invention is that: provide a kind of energy-storage battery group based on solar energy with
The grid-connected application system of urban distribution network, it is of the existing technology to solve the problems, such as, the energy-storage battery group based on solar energy with
The grid-connected application system of urban distribution network includes:
Photovoltaic solar panel, gird-connected inverter, energy-storage battery group, electrical equipment, grid-connected management equipment, urban distribution network system
System；
The photovoltaic solar panel is connect with the gird-connected inverter, is turned for receiving solar energy, and by solar energy
It is changed to electric energy, Xiang Suoshu gird-connected inverter exports electric energy；
The gird-connected inverter is connect with the energy-storage battery group, electrical equipment and grid-connected management equipment, described grid-connected inverse
Become the electric energy that device inputs the photovoltaic solar panel and carries out voltage transformation, output 220V alternating current to energy-storage battery group, electricity consumption
Equipment and grid-connected management equipment, or the direct current of the energy-storage battery group output is received, the direct current of input is converted into 220V
Electricity output is exchanged to electrical equipment and grid-connected management equipment；
The energy-storage battery group is used to receive the alternating current of gird-connected inverter output or straight to gird-connected inverter output
Galvanic electricity, when photovoltaic solar panel output electric energy power is less than electrical equipment power, the gird-connected inverter receives the energy storage
The electric energy of battery pack, and to power supply for electrical equipment, when photovoltaic solar panel, energy-storage battery group output power are respectively less than electrical equipment
When power, the gird-connected inverter stops to the power supply for electrical equipment, and the grid-connected management equipment passes through urban distribution network system
To power supply for electrical equipment；
The electrical equipment is worked by receiving the alternating current of the gird-connected inverter or the output of grid-connected management equipment,
Consume electric energy；
The grid-connected management equipment is connect with the gird-connected inverter, electrical equipment and urban distribution network system, described grid-connected
Management equipment is opened or closed according to the power situation of electrical equipment, when the power of electrical equipment is greater than photovoltaic solar panel
Output power and energy storage battery output power when, the grid-connected management equipment opens urban distribution network system to electrical equipment
Power supply, it is described grid-connected when the output power of photovoltaic solar panel or energy storage battery output power are greater than electrical equipment power
Management equipment is opened transmits electricity to urban distribution network system；
The urban distribution network system carries out the output or input of electric energy under the control of the grid-connected management equipment.
In the another of the grid-connected application system based on the above-mentioned energy-storage battery group and urban distribution network based on solar energy of the present invention
In a embodiment, the gird-connected inverter includes direct-flow input end mouth, ac input end mouth and ac output end mouth, the direct current
Input port includes 2, is respectively used to connection photovoltaic solar panel and energy storage battery, the ac input end mouth and the city
The connection of utility grid system, the ac output end mouth is 1, for exporting 220V alternating current.
In the another of the grid-connected application system based on the above-mentioned energy-storage battery group and urban distribution network based on solar energy of the present invention
In a embodiment, the grid-connected management equipment include it is manually opened and automatically turn on two kinds of Starting mode, operating mode include to
Urban distribution network exports electric energy and exports electric energy both of which by urban distribution network.
In the another of the grid-connected application system based on the above-mentioned energy-storage battery group and urban distribution network based on solar energy of the present invention
In a embodiment, under the Starting mode of the automatic opening, the grid-connected management equipment setting automatic opening running parameter, and by
The output power situation of gird-connected inverter described in grid-connected management equipment real-time monitoring, according to gird-connected inverter output power and electricity consumption
Plant capacity relationship, one of starting both of which.
In the another of the grid-connected application system based on the above-mentioned energy-storage battery group and urban distribution network based on solar energy of the present invention
In a embodiment, the energy-storage battery group setting positive and negative anodes and machine interface, for being connected in parallel multiple energy-storage battery groups.
In the another of the grid-connected application system based on the above-mentioned energy-storage battery group and urban distribution network based on solar energy of the present invention
In a embodiment, the energy-storage battery group includes charging current limiter module, described for preventing when multiple energy-storage battery groups are arranged
Mutual charging between energy-storage battery group.
Compared with prior art, the invention has the following advantages that
The grid-connected application system of the invention proposes a kind of energy-storage battery group and urban distribution network based on solar energy, by simultaneously
The electric energy that photovoltaic solar panel generates can be converted to alternating current, electricity supply and use equipment and energy storage battery charging by net inverter,
And can transmit electricity to urban distribution network system, the intelligence to urban distribution network system power input and output is realized by grid-connected management equipment
Management, protection gird-connected inverter are no more than rated power, will not damage equipment, and energy-storage battery group has parallel function, facilitates storage
Can battery pack extension, it is the configuration of the present invention is simple, practical.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiment of the present invention, and together with description for explaining
The principle of the present invention.
The present invention can be more clearly understood according to following detailed description referring to attached drawing, in which:
Fig. 1 is an implementation of the grid-connected application system of the energy-storage battery group and urban distribution network of the invention based on solar energy
The structural schematic diagram of example；
In figure: 1 photovoltaic solar panel, 2 gird-connected inverters, 3 energy-storage battery groups, 4 electrical equipments, 5 grid-connected management equipments, 6
Urban distribution network system.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
Fig. 1 is an implementation of the grid-connected application system of the energy-storage battery group and urban distribution network of the invention based on solar energy
The structural schematic diagram of example, as shown in Figure 1, the grid-connected application system packet of the energy-storage battery group and urban distribution network based on solar energy
It includes:
Photovoltaic solar panel 1, gird-connected inverter 2, energy-storage battery group 3, electrical equipment 4, grid-connected management equipment 5, city electricity
Net system 6；
The photovoltaic solar panel 1 is connect with the gird-connected inverter 2, for receiving solar energy, and by solar energy
Electric energy is converted to, Xiang Suoshu gird-connected inverter 2 exports electric energy；
The gird-connected inverter 2 is connect with the energy-storage battery group 3, electrical equipment 4 and grid-connected management equipment 5, it is described simultaneously
The electric energy that net inverter 2 inputs the photovoltaic solar panel 1 carries out voltage transformation, output 220V alternating current to energy-storage battery group
3, electrical equipment 4 and grid-connected management equipment 5, or the direct current that the energy-storage battery group 3 exports is received, the direct current of input is turned
It is changed to 220V and exchanges electricity output to electrical equipment 4 and grid-connected management equipment 5；
The energy-storage battery group 3 is used to receive the alternating current of the output of gird-connected inverter 2 or exports to the gird-connected inverter 2
Direct current, when photovoltaic solar panel 1, which exports electric energy power, is less than 4 power of electrical equipment, the gird-connected inverter 2 receives described
The electric energy of energy-storage battery group 3, and power to electrical equipment 4, when photovoltaic solar panel 1,3 output power of energy-storage battery group are respectively less than
When 4 power of electrical equipment, the gird-connected inverter 2 stops powering to the electrical equipment 4, and the grid-connected management equipment 5 passes through
Urban distribution network system 6 is powered to electrical equipment 4；
The electrical equipment 4 carries out work by receiving the alternating current of the gird-connected inverter 2 or the output of grid-connected management equipment 5
Make, consumes electric energy；
The grid-connected management equipment 5 is connect with the gird-connected inverter 2, electrical equipment 4 and urban distribution network system 6, described
Grid-connected management equipment 5 is opened or closed according to the power situation of electrical equipment 4, when the power of electrical equipment 4 is greater than photovoltaic
When the output power of the output powers of solar panels 1 and energy storage battery, the grid-connected management equipment 5 opens urban distribution network system
6 power to electrical equipment 4, when the output power or energy storage battery output power of photovoltaic solar panel 1 are greater than 4 function of electrical equipment
When rate, the grid-connected management equipment 5 is opened transmits electricity to urban distribution network system 6；
The urban distribution network system 6 carries out the output or input of electric energy under the control of the grid-connected management equipment 5.
When the remaining capacity of energy-storage battery group 3 is less than the charge threshold of setting, the grid-connected management equipment 5 is opened by city
Utility grid system 6 charges to the energy-storage battery group 3, and urban distribution network system 6 can be automatic side to the charging of energy-storage battery group 3
Formula can also use manual mode, in the case where not limiting 3 remaining capacity of energy-storage battery group under manual mode, at any time to institute
State the charging of energy-storage battery group 3；
When the electricity of energy-storage battery group 3 is greater than the discharge threshold of setting, the grid-connected management equipment 5 is opened by energy storage electricity
Pond group 3 charges to the urban distribution network system 6, and energy-storage battery group 3 can be automatic side to the urban distribution network system 6 charging
Formula can also use manual mode, in the case where not limiting 3 remaining capacity of energy-storage battery group under manual mode, at any time to institute
State the charging of urban distribution network system 6；
The working method of manually opened grid-connected management equipment 5, can also in conjunction with urban distribution network system 6 electricity price depending on, when
The electricity price of urban distribution network system 6 be lower than photovoltaic solar panel 1 cost of electricity-generating when, can with manually opened urban distribution network system 6 to
Energy-storage battery group 3 charges, and saves the operating cost of photovoltaic solar panel 1, when the electricity price of urban distribution network system 6 is higher than photovoltaic solar
Can plate 1 cost of electricity-generating when, can charge with manually opened energy-storage battery group 3 to the urban distribution network system 6, save buy it is electric at
This.
The gird-connected inverter 2 includes direct-flow input end mouth, ac input end mouth and ac output end mouth, and the direct current is defeated
Inbound port includes 2, is respectively used to connection photovoltaic solar panel 1 and energy storage battery, the ac input end mouth and the city
Utility grid system 6 connects, and the ac output end mouth is 1, for exporting 220V alternating current.
The grid-connected management equipment 5 includes manually opened and automatically turns on two kinds of Starting mode, and operating mode includes to city
Utility grid exports electric energy and exports electric energy both of which by urban distribution network.
Under the Starting mode of the automatic opening, the grid-connected setting of management equipment 5 automatically turns on running parameter, and by simultaneously
The output power situation of gird-connected inverter 2 described in 5 real-time monitoring of net management equipment according to 2 output power of gird-connected inverter and is used
4 power relation of electric equipment, one of starting both of which.
Positive and negative anodes and machine interface is arranged in the energy-storage battery group 3, for being connected in parallel multiple energy-storage battery groups 3.
The energy-storage battery group 3 includes charging current limiter module, described for preventing when multiple energy-storage battery groups 3 are arranged
Mutual charging between energy-storage battery group 3.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with its
The difference of its embodiment, the same or similar part cross-reference between each embodiment.For system embodiment
For, since it is substantially corresponding with embodiment of the method, so being described relatively simple, referring to the portion of embodiment of the method in place of correlation
It defends oneself bright.
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (6)
1. a kind of grid-connected application system of energy-storage battery group and urban distribution network based on solar energy characterized by comprising
Photovoltaic solar panel, gird-connected inverter, energy-storage battery group, electrical equipment, grid-connected management equipment, urban distribution network system；
The photovoltaic solar panel is connect with the gird-connected inverter, is converted to for receiving solar energy, and by solar energy
Electric energy, Xiang Suoshu gird-connected inverter export electric energy；
The gird-connected inverter is connect with the energy-storage battery group, electrical equipment and grid-connected management equipment, the gird-connected inverter
The electric energy that the photovoltaic solar panel is inputted carries out voltage transformation, output 220V alternating current to energy-storage battery group, electrical equipment
With grid-connected management equipment, or the direct current of the reception energy-storage battery group output, the direct current of input is converted into 220V exchange
Electricity output is to electrical equipment and grid-connected management equipment；
The energy-storage battery group is used to receive the alternating current of gird-connected inverter output or exports direct current to the gird-connected inverter,
When photovoltaic solar panel output electric energy power is less than electrical equipment power, the gird-connected inverter receives the energy-storage battery group
Electric energy, and to power supply for electrical equipment, when photovoltaic solar panel, energy-storage battery group output power are respectively less than electrical equipment power
When, the gird-connected inverter stops to the power supply for electrical equipment, the grid-connected management equipment by urban distribution network system to
Electric equipment power supply；
The electrical equipment is worked by receiving the alternating current of the gird-connected inverter or the output of grid-connected management equipment, is consumed
Electric energy；
The grid-connected management equipment is connect with the gird-connected inverter, electrical equipment and urban distribution network system, the grid-connected management
Equipment is opened or closed according to the power situation of electrical equipment, when the power of electrical equipment is greater than the defeated of photovoltaic solar panel
Out when the output power of power and energy storage battery, the grid-connected management equipment is opened urban distribution network system and is supplied to electrical equipment
Electricity, when the output power of photovoltaic solar panel or energy storage battery output power are greater than electrical equipment power, described and network management
Opening of device is managed to transmit electricity to urban distribution network system；
The urban distribution network system carries out the output or input of electric energy under the control of the grid-connected management equipment.
2. the grid-connected application system of the energy-storage battery group and urban distribution network according to claim 1 based on solar energy, special
Sign is that the gird-connected inverter includes direct-flow input end mouth, ac input end mouth and ac output end mouth, the direct current input
Port includes 2, is respectively used to connection photovoltaic solar panel and energy storage battery, the ac input end mouth and city electricity
The connection of net system, the ac output end mouth is 1, for exporting 220V alternating current.
3. the grid-connected application system of the energy-storage battery group and urban distribution network according to claim 1 based on solar energy, special
Sign is that the grid-connected management equipment includes manually opened and automatically turns on two kinds of Starting mode, and operating mode includes to city
Power grid exports electric energy and exports electric energy both of which by urban distribution network.
4. the grid-connected application system of the energy-storage battery group and urban distribution network according to claim 3 based on solar energy, special
Sign is, under the Starting mode of the automatic opening, the grid-connected management equipment setting automatically turns on running parameter, and by grid-connected
The output power situation of gird-connected inverter described in management equipment real-time monitoring, according to gird-connected inverter output power and electrical equipment
Power relation, one of starting both of which.
5. the grid-connected application system of the energy-storage battery group and urban distribution network according to claim 1 based on solar energy, special
Sign is that positive and negative anodes and machine interface is arranged in the energy-storage battery group, for being connected in parallel multiple energy-storage battery groups.
6. the grid-connected application system of the energy-storage battery group and urban distribution network according to claim 5 based on solar energy, special
Sign is that the energy-storage battery group includes charging current limiter module, for preventing the energy storage when multiple energy-storage battery groups are arranged
Mutual charging between battery pack.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910256375.7A CN109904872A (en) | 2019-04-01 | 2019-04-01 | The grid-connected application system of energy-storage battery group and urban distribution network based on solar energy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910256375.7A CN109904872A (en) | 2019-04-01 | 2019-04-01 | The grid-connected application system of energy-storage battery group and urban distribution network based on solar energy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110237660A (en) * | 2019-06-28 | 2019-09-17 | 苏州市建科建筑节能研究开发有限公司 | Utilize photovoltaic and the united drying compressed air system of paddy electricity and its control method |
| CN110707751A (en) * | 2019-11-26 | 2020-01-17 | 佛山市欧亚玛电器实业有限公司 | Solar inversion system |
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| CN203645341U (en) * | 2013-04-15 | 2014-06-11 | 北京市建筑设计研究院有限公司 | Solar energy large scale utilizing system used for city settlement |
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| CN108039732A (en) * | 2017-12-29 | 2018-05-15 | 南京熊猫电子股份有限公司 | A kind of and the one-piece type photovoltaic energy-storage system power supply of off-network and its control method |
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| CN203645341U (en) * | 2013-04-15 | 2014-06-11 | 北京市建筑设计研究院有限公司 | Solar energy large scale utilizing system used for city settlement |
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Application publication date: 20190618 |