CN211790784U - Light stores up and fills integration charging station - Google Patents
Light stores up and fills integration charging station Download PDFInfo
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- CN211790784U CN211790784U CN201921700826.3U CN201921700826U CN211790784U CN 211790784 U CN211790784 U CN 211790784U CN 201921700826 U CN201921700826 U CN 201921700826U CN 211790784 U CN211790784 U CN 211790784U
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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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- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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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
- Y02T90/12—Electric charging stations
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Abstract
The embodiment of the utility model discloses light stores up and fills integration charging station. The light storage and charging integrated charging station comprises an energy storage battery system, a photovoltaic system, an energy storage converter, an alternating current power distribution cabinet, an energy management controller and a plurality of charging piles; the energy storage battery system comprises a plurality of battery packs, each battery pack comprises an ex-service power battery cluster, and each battery pack is electrically connected with the energy storage converter through a bidirectional DCDC converter; the energy management controller obtains state information of the photovoltaic system and the energy storage battery system so as to control the grid connection and disconnection state of the photovoltaic system and/or the energy storage battery system through the alternating current power distribution cabinet, control power supply of the photovoltaic system and control charging and discharging of corresponding retired power battery clusters through the bidirectional DCDC converter. The utility model realizes the direct current side isolation between clusters, eliminates direct parallel circulation, and can realize the high compatibility of the difference between clusters; in addition, the energy distribution function can be optimized according to different state difference discharge, and energy clustering management is realized.
Description
Technical Field
The embodiment of the utility model provides a power battery echelon utilizes technical field, especially relates to a light stores up and fills integration charging station.
Background
The retired power battery generally refers to a battery which is used on a new energy passenger vehicle for 5 years or more or used on a commercial vehicle for 3 years or more, and cannot meet the performance requirement of the power battery or cannot meet the use requirement of a consumer due to the fact that the residual capacity of a battery system is 80% of the rated capacity. The echelon utilization of the retired power battery is to reform the retired power battery into a new battery system through the steps of detection, disassembly, classification, recombination and the like, to be continuously applied to other fields with performance requirements lower than that of new energy automobiles, and to enter the links of recycling, such as scrapping, disassembly, material recovery and the like after the retired power battery is continuously used until the capacity is lower than 40%.
It is estimated that during 10 years of 2014-2024, the accumulated scrappage of the power lithium battery in China is about 100 ten thousand tons, and 1 lithium ion battery with 0.02kg can pollute the land with 1 square kilometer for about 50 years. Therefore, the environmental protection disposal of the retired power lithium battery in China is not slow, and the rapid development of the echelon utilization industry is urgently needed. From the market prospect, the economy of the graded utilization of the retired power battery is continuously improved, and the energy storage and low-speed vehicle fields in China have great demands. By 2025, the newly added echelon utilization battery in China has a potential scale of about 33.6GWH, the power battery recycling standard is intensively released in recent years, relevant policies are formulated, a power battery traceability management platform is started in 2018, 17 test point areas such as Jingjin Ji area, Jiangsu and Shanghai and a Chinese iron tower limited company are determined to serve as test point enterprises, innovation is strengthened in the aspects of echelon utilization business model construction, key technology research and development, standard specification research, informatization platform construction and the like, the echelon utilization is safer and more normative, and the rapid development of industries is facilitated.
The charging station is not only an important infrastructure for energy supplement of the new energy automobile, but also a large market for gradient utilization and energy storage of the retired power battery which grows continuously. Under the condition of the same configuration, the energy is stored by using the retired power battery in the rapid charging station, and the economy is better than that of the conventional energy storage by using a similar new battery. In addition, the energy is stored by adopting the retired power battery, and the advantage that the direct-current quick charging load control requirement can be met by changing the access scheme of the charging equipment under the condition that the capacity of the charging station is not increased or expanded is achieved. The existing charging station connects the whole battery pack with an inverter through a DCDC converter, and utilizes the DCDC converter to control the charging and discharging voltage of the battery pack, however, the system architecture is not suitable for a plurality of retired power battery clusters with inconsistent battery states, the unified control of the retired power battery clusters can cause the inter-cluster circulation phenomenon, and the service life of the battery can be reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a light stores up and fills integration charging station to realize the dynamic management and the independent control of clustering of retired power battery cluster, eliminate the direct parallelly connected circulation that produces, be favorable to concurrently and retired power battery package simultaneously.
The embodiment of the utility model provides a light storage fills integration charging station, including energy storage battery system, photovoltaic system, energy storage converter, AC distribution cabinet, energy management controller and a plurality of charging piles;
the energy storage battery system comprises a plurality of battery packs, each battery pack comprises an ex-service power battery cluster, and each battery pack is electrically connected with the energy storage converter through a bidirectional DCDC converter;
the photovoltaic system is electrically connected with the energy storage converter;
the energy storage converter is electrically connected with the alternating current power distribution cabinet through an alternating current bus;
the alternating current power distribution cabinet is electrically connected with a power grid and the plurality of charging piles respectively;
the energy management controller is respectively in communication connection with the alternating current power distribution cabinet, the photovoltaic system, the energy storage battery system and the bidirectional DCDC converter, and is used for acquiring state information of the photovoltaic system and the energy storage battery system, controlling the grid-connected and off-grid state of the photovoltaic system and/or the energy storage battery system through the alternating current power distribution cabinet, and controlling the power supply of the photovoltaic system and the charging and discharging of the retired power battery cluster corresponding to the control of the bidirectional DCDC converter.
Optionally, each battery pack further includes a battery management module and a high-voltage power distribution module, the battery management module is respectively in communication connection with the retired power battery cluster and the high-voltage power distribution module, and the battery management module is in communication connection with the energy management controller;
the battery management module is used for optimally controlling the charging and discharging of the retired power battery cluster; and the high-voltage power supply distribution module is used for controlling the on-off of the high-voltage loop.
Optionally, the photovoltaic system includes a photovoltaic controller, a combiner box, and a plurality of solar panels, the combiner box is electrically connected to the solar panels and the photovoltaic controller, respectively, and the photovoltaic controller is configured to control power output.
Optionally, the energy storage converter comprises a first circuit breaker, a direct current filter, an inverter, an alternating current filter, a relay and a second circuit breaker which are electrically connected in sequence;
the first circuit breaker is electrically connected with the bidirectional DCDC converter and the photovoltaic controller through a direct current bus, and the second circuit breaker is electrically connected with the alternating current power distribution cabinet through an alternating current bus; the inverter is in communication connection with the energy management controller.
Optionally, the ac power distribution cabinet includes a third circuit breaker, a first contactor, a second contactor, a fourth circuit breaker, and a first electric meter, which are electrically connected in sequence, and the third circuit breaker is electrically connected to the second circuit breaker in the energy storage converter through the ac bus; the first electric meter is electrically connected with the power grid;
the alternating current power distribution cabinet further comprises a second electric meter and a fifth circuit breaker which are electrically connected in sequence, the second electric meter is electrically connected with the first contactor and the second contactor through the alternating current bus respectively, and the fifth circuit breaker is connected with the plurality of charging piles;
the energy management controller is respectively in communication connection with the first contactor and the second contactor.
Optionally, the optical storage and charging integrated charging station further comprises a dual-output charger and a first backup power supply, the first backup power supply is connected to the ac bus between the ac power distribution cabinet and the energy storage converter, and the dual-output charger is powered by the first backup power supply;
the two-way output charger comprises a first voltage output port and a second voltage output port, the photovoltaic controller, the bidirectional DCDC converter, the inverter, the energy management controller and the communication module are powered by the first voltage output port, and the battery management module is powered by the second voltage output port.
Optionally, the light storage and charging integrated charging station further comprises a communication module, wherein the communication module is in communication connection with the energy management controller and is used for being in communication connection with a cloud end and/or a terminal.
Optionally, the light storage and charging integrated charging station further includes an air conditioning system, and the air conditioning system is connected to the ac bus between the ac power distribution cabinet and the energy storage converter.
Optionally, the light storage and charging integrated charging station includes a fire protection system and a second backup power supply, the second backup power supply is connected to the ac bus between the ac power distribution cabinet and the energy storage converter, and the fire protection system is powered by the second backup power supply.
Optionally, the energy management controller is disposed in the ac distribution cabinet.
The embodiment of the utility model provides a light stores up and fills integration charging station, through setting up energy storage battery system, photovoltaic system, energy storage converter, AC distribution cabinet, energy management controller and a plurality of electric pile of filling to, set up a plurality of battery packages in energy storage battery system, include a decommissioning power battery cluster in the battery package, each battery package is connected with the energy storage converter electricity through a two-way DCDC converter, thereby can realize low-voltage platform clustering design, the direct current side is kept apart between the cluster, eliminates direct parallel connection circulation; meanwhile, high compatibility of inter-cluster differences can be realized, so that the charging station system is compatible with batteries in different service life states and different vehicle types; in addition, the method can realize isomerism, is compatible with the entire retired power battery pack application scheme, and can reduce the work of disassembly, classification and recombination. In addition, the energy management controller is used for distributing and managing the power supply of the photovoltaic system, the energy storage battery system and the power grid, so that the energy distribution function can be optimized, the energy clustering management is realized, the discharging is carried out according to different state differences, and the energy storage effect is exerted to the maximum extent; meanwhile, the energy dispatching function can be optimized, dynamic management can be performed according to load demand change, and even charging management can be optimized according to weather change.
Drawings
Fig. 1 is a schematic structural diagram of an optical storage and charging integrated charging station provided by an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of an optical storage and charging integrated charging station provided in an embodiment of the present invention, referring to fig. 1, the optical storage and charging integrated charging station includes an energy storage battery system 10, a photovoltaic system 20, an energy storage converter 30, an ac power distribution cabinet 40, an energy management controller 50, and a plurality of charging piles 60; the energy storage battery system 10 comprises a plurality of battery packs 11, each battery pack 11 comprises an ex-service power battery cluster 111, and each battery pack 11 is electrically connected with the energy storage converter 30 through a bidirectional DCDC converter 12; the photovoltaic system 20 is electrically connected with the energy storage converter 30; the energy storage converter 30 is electrically connected with the alternating current power distribution cabinet 40 through an alternating current bus; the alternating current distribution cabinet 40 is electrically connected with a power grid and the plurality of charging piles 60 respectively; the energy management controller 50 is in communication connection with the alternating current power distribution cabinet 40, the photovoltaic system 20, the energy storage battery system 10 and the bidirectional DCDC converter 12 respectively, the energy management controller 50 is used for acquiring state information of the photovoltaic system 20 and the energy storage battery system 10, controlling a grid-connected state and a grid-disconnected state of the photovoltaic system 20 and/or the energy storage battery system 10 through the alternating current power distribution cabinet 40, and controlling power supply of the photovoltaic system 20 and charging and discharging of the retired power battery cluster 111 corresponding to the control of the bidirectional DCDC converter 12.
Wherein, energy storage battery system 10 and photovoltaic system 20 and electric wire netting can be under energy management system 50's dispatch to filling electric pile 60 power supply to satisfy the demand of charging of filling electric pile 60. Moreover, because the dc voltage of the retired power battery cluster 111 is low, and is boosted by the bidirectional DCDC converter 12 and then connected to the dc bus, the energy management system 50 can perform management and energy distribution on each retired power battery cluster 111, implement clustering management measures, implement access, disconnection and variable power output of each cluster of batteries, be compatible with batteries in different states, and facilitate subsequent maintenance. Under the dispatch of the energy management system 50, the light storage and charging integrated charging station operates according to the following strategy. The ratio of 7:00-11:30 belongs to peak electricity price, at the moment, the photovoltaic system 20 preferentially surfs the internet for power generation, and the energy storage battery system 10 supplies power for the charging pile 60; the ratio of 11:30-17:00 belongs to flat electricity price, the photovoltaic system 20 has higher generating efficiency at the moment, and simultaneously, electric energy is transmitted to the charging pile 60 and the energy storage battery system 10; the peak electricity prices are 17:00-21:00, and the energy storage battery system 10 supplies electric energy to the charging pile 60 at the moment; 22:00-5:00 belongs to the valley-power stage, and the energy storage battery system 10 is charged by the power grid at the same time to supply the charging demand of the charging pile 60.
The embodiment of the utility model provides a light stores up and fills integration charging station, through setting up energy storage battery system, photovoltaic system, energy storage converter, AC distribution cabinet, energy management controller and a plurality of electric pile of filling to, set up a plurality of battery packages in energy storage battery system, include a decommissioning power battery cluster in the battery package, each battery package is connected with the energy storage converter electricity through a two-way DCDC converter, thereby can realize low-voltage platform clustering design, the direct current side is kept apart between the cluster, eliminates direct parallel connection circulation; meanwhile, high compatibility of inter-cluster differences can be realized, so that the charging station system is compatible with batteries in different service life states and different vehicle types; in addition, the method can realize isomerism, is compatible with the entire retired power battery pack application scheme, and can reduce the work of disassembly, classification and recombination. In addition, the energy management controller is used for distributing and managing the power supply of the photovoltaic system, the energy storage battery system and the power grid, so that the energy distribution function can be optimized, the energy clustering management is realized, the discharging is carried out according to different state differences, and the energy storage effect is exerted to the maximum extent; meanwhile, the energy dispatching function can be optimized, dynamic management can be performed according to load demand change, and even charging management can be optimized according to weather change.
Specifically, in the energy storage battery system 10, each battery pack 11 further includes a battery management module 112 and a high-voltage power distribution module 113, where the battery management module 112 is respectively connected to the retired power battery cluster 111 and the high-voltage power distribution module 113 in a communication manner, and the battery management module is connected to the energy management controller 50 in a communication manner; the battery management module 112 is used for optimally controlling the charging and discharging of the retired power battery cluster 111; the high voltage power distribution module 113 is used to control the on/off of the high voltage circuit.
The battery management module 112 is a real-time monitoring system composed of electronic circuit devices, and is mainly used for optimally controlling the charging and discharging of the retired power battery cluster 111; in addition, the method also comprises the steps of effectively monitoring the battery voltage, the battery current, the battery cluster insulation state, the battery SOC, the battery module and the monomer state (voltage, current, temperature, SOC and the like), carrying out safety management on the charging and discharging processes of the battery cluster, carrying out alarm and emergency protection processing on possible faults, carrying out safety and optimization control on the operation of the battery module and the battery cluster, and ensuring the safe, reliable and stable operation of the battery. The high-voltage power distribution module 113 is a core component of a high-voltage electrical system, and mainly functions to control the on-off of an internal high-voltage relay through an external low-voltage control loop, and connect a series of high-voltage components such as a motor controller for driving and steering a motor, a vehicle-mounted charger, an air conditioner, and a direct-current voltage converter (DC/DC) according to a circuit designed inside a high-voltage power distribution box. In addition, as shown in the figure, the battery pack 11 further includes a maintenance switch and a current sensor disposed in the high voltage power distribution module 113, and a person skilled in the art can reasonably obtain a functional module for monitoring and managing the battery pack according to the structural design of the actual battery pack, and details are not repeated here.
Further, the photovoltaic system 20 includes a photovoltaic controller 21, a combiner box 22 and a plurality of solar panels 23, the combiner box 22 is electrically connected to the solar panels 23 and the photovoltaic controller 21, and the photovoltaic controller 21 is configured to control power output.
The photovoltaic controller 21 is an automatic control device used in a solar power generation system to control a multi-path solar cell matrix to charge a storage battery and the storage battery to supply power to a solar inverter load. The photovoltaic controller adopts a high-speed CPU microprocessor and a high-precision A/D analog-to-digital converter, and is a microcomputer data acquisition and monitoring control system. The method can quickly acquire the current working state of the photovoltaic system in real time, obtain the working information of the PV station at any time, and accumulate the historical data of the PV station in detail, thereby providing accurate and sufficient basis for evaluating the rationality of the design of the PV system and checking the reliability of the quality of the system components. In addition, the photovoltaic controller also has a serial communication data transmission function, and can perform centralized management and remote control on a plurality of photovoltaic system substations. Photovoltaic controller 21 typically has 6 nominal voltage levels: 12V, 24V, 48V, 110V, 220V, 500V, the photovoltaic controller 21 can ensure the maximum efficiency operation of the solar array all day long and all weather by using the maximum power tracking technology. The working efficiency of the photovoltaic module can be improved by 30 percent (the average improvement efficiency is 10 to 25 percent). In addition, the photovoltaic controller 21 also includes a search function, which can periodically search for the absolute maximum power output point within the whole operating voltage range of the solar panel. The combiner box 22 is used in a solar photovoltaic power generation system, and the combiner box 22 is used in order to reduce the wiring between the solar photovoltaic cell array and the inverter in the energy storage converter 30. A plurality of solar panels 23 are connected in series to form a photovoltaic array, the photovoltaic array is connected into a header box 22 in parallel, and after the photovoltaic array is connected with an energy storage converter 30 through a photovoltaic controller 21, a photovoltaic power generation system can be formed, and grid-connected power supply can be achieved with an energy storage battery system 10 and a power grid. In order to improve the reliability and the practicability of the system, a special photovoltaic direct-current lightning protection module, a direct-current fuse, a circuit breaker and the like are usually configured in the combiner box 22, so that a user can conveniently and accurately master the working condition of the photovoltaic cell in time, and the solar photovoltaic power generation system is ensured to exert the maximum efficacy.
The energy storage converter 30 comprises a first breaker 31, a direct current filter 32, an inverter 33, an alternating current filter 34, a relay 35 and a second breaker 36 which are electrically connected in sequence; the first circuit breaker 31 is electrically connected with the bidirectional DCDC converter 12 and the photovoltaic controller 21 through a direct current bus, and the second circuit breaker 36 is electrically connected with the alternating current power distribution cabinet 40 through an alternating current bus; the inverter 33 is communicatively coupled to the energy management controller 50.
The energy storage converter 30(Power Conversion System, PCS) can control the charging and discharging processes of the energy storage battery System 10 and the Power supply of the photovoltaic System 20, perform ac/dc Conversion, and directly supply Power to an ac load without a Power grid. The energy storage converter 30 receives a control instruction of the energy management controller 50 through communication, and controls the converter to charge or discharge the battery according to the symbol and the size of the power instruction, so as to adjust the active power and the reactive power of the power grid. At the same time. The energy storage converter 30 CAN also communicate with the battery management module 112 in the energy storage battery system 10 through the CAN interface to obtain the state information of the battery pack 11, so that the protective charging and discharging of the retired power battery pack 11 CAN be realized, and the battery operation safety is ensured.
The ac power distribution cabinet 40 includes a third circuit breaker 41, a first contactor 42, a second contactor 43, a fourth circuit breaker 44 and a first electric meter 45, which are electrically connected in sequence, wherein the third circuit breaker 41 is electrically connected to the second circuit breaker 36 in the energy storage converter 30 through the ac bus; the first electric meter 45 is electrically connected to the grid; the alternating current power distribution cabinet 40 further comprises a second electric meter 46 and a fifth circuit breaker 47 which are electrically connected in sequence, the second electric meter 46 is electrically connected with the first contactor 42 and the second contactor 43 through the alternating current bus respectively, and the fifth circuit breaker 47 is connected with the plurality of charging piles 60; the energy management controller 50 is in communication with the first contactor 42 and the second contactor 43, respectively.
Specifically, referring to fig. 1, an energy management controller 50 may be generally disposed in the ac distribution cabinet 40. The energy management controller 50 can control the first contactor 42 and the second contactor 43 by communicating with the first contactor 42 and the second contactor 43, respectively, so as to control the on-grid power supply of the photovoltaic system 20 and the energy storage battery system and the off-grid power supply of the power grid on the one hand, and control the power supply of the power grid at the same time.
The optical storage and charging integrated charging station further comprises a first standby power supply 71 and a two-way output charger 72, wherein the first standby power supply 71 is connected to the alternating current bus between the alternating current power distribution cabinet 40 and the energy storage converter 30, and the two-way output charger 72 is powered by the first standby power supply 71; the dual output charger 72 includes a first voltage output port 721 and a second voltage output port 722, the photovoltaic controller 21, the bidirectional DCDC converter 12, the inverter 33, and the energy management controller 50 are powered by the first voltage output port 721, and the battery management module 112 is powered by the second voltage output port 722.
In order to prevent the photovoltaic system and the energy storage battery system from having power supply problems and ensure the normal operation of the control system of the light storage and charging integrated charging station, a combination of a standby power supply and a charger is selected to be arranged when power is supplied to the functional modules in each control system. The first standby power supply 71 obtains electric energy through an alternating current bus, and ensures uninterrupted power supply to the dual output charger 72. The dual output charger 72 provides two different voltage sources to the different control modules. As shown, the photovoltaic controller 21, the bidirectional DCDC converter 12, the inverter 33, and the energy management controller 50 are all powered by 24V voltage, and the battery management module 112 is powered by 12V voltage.
Further, in order to ensure that a user or a manager can obtain status information and the like of the optical storage and charging integrated charging station and each unit thereof in real time, the optical storage and charging integrated charging station may further include a communication module 80, and the communication module 80 is in communication connection with the energy management controller 50 and is used for being in communication connection with a cloud and/or a terminal. The power supply of the communication module 80 can be supplied from the first voltage output port of the dual output charger. The communication module 80 may be a wired communication module or a wireless communication module. Exemplarily, taking the 4G wireless communication module as an example, the state information of the charging station and the like can be conveniently acquired through the communication connection of the terminal devices such as the user mobile phone and the like, so as to help the user to know the charging condition, and to help realize a more humanized charging station.
It is understood that a complete charging station structure includes not only the power supply system and the charging device, but also the monitoring system and its associated devices. In order to ensure the normal operation of the charging station, on one hand, temperature management needs to be carried out on the charging station, and the working environment temperature of the charging station is ensured; meanwhile, a fire-fighting system is required to be arranged, and disasters such as fire disasters can be prevented in time. Therefore, the light storage and charging integrated charging station further comprises an air conditioning system 91, and the air conditioning system 91 is connected to the alternating current bus between the alternating current power distribution cabinet 40 and the energy storage converter 30. In addition, a fire protection system 92 and a second backup power supply 93 can be arranged in the light storage and charging integrated charging station, the second backup power supply 93 is connected to the alternating current bus between the alternating current power distribution cabinet 40 and the energy storage converter 30, and the fire protection system 92 is powered by the second backup power supply 93.
Wherein, air conditioning system 91 can carry out temperature control to each power supply system and battery charging outfit, guarantees normal operating temperature, avoids extreme condition such as the high temperature or low excessively to influence the normal operating of charging station. The fire protection system 92 can perform danger early warning, alarming and even fire protection by the uninterrupted power supply of the second standby power supply 93, so that the danger of fire catching and the like of the charging station is avoided, and the safety of the charging station is ensured.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A light storage and charging integrated charging station is characterized by comprising an energy storage battery system, a photovoltaic system, an energy storage converter, an alternating current power distribution cabinet, an energy management controller and a plurality of charging piles;
the energy storage battery system comprises a plurality of battery packs, each battery pack comprises an ex-service power battery cluster, and each battery pack is electrically connected with the energy storage converter through a bidirectional DCDC converter;
the photovoltaic system is electrically connected with the energy storage converter;
the energy storage converter is electrically connected with the alternating current power distribution cabinet through an alternating current bus;
the alternating current power distribution cabinet is electrically connected with a power grid and the plurality of charging piles respectively;
the energy management controller is respectively in communication connection with the alternating current power distribution cabinet, the photovoltaic system, the energy storage battery system and the bidirectional DCDC converter, and is used for acquiring state information of the photovoltaic system and the energy storage battery system, controlling the grid-connected and off-grid state of the photovoltaic system and/or the energy storage battery system through the alternating current power distribution cabinet, and controlling the power supply of the photovoltaic system and the charging and discharging of the retired power battery cluster corresponding to the control of the bidirectional DCDC converter.
2. The light charging station of claim 1,
each battery pack further comprises a battery management module and a high-voltage power supply distribution module, the battery management module is respectively in communication connection with the retired power battery cluster and the high-voltage power supply distribution module, and the battery management module is in communication connection with the energy management controller;
the battery management module is used for optimally controlling the charging and discharging of the retired power battery cluster; and the high-voltage power supply distribution module is used for controlling the on-off of the high-voltage loop.
3. The light charging station of claim 1,
the photovoltaic system comprises a photovoltaic controller, a junction box and a plurality of solar panels, wherein the junction box is respectively electrically connected with the solar panels and the photovoltaic controller, and the photovoltaic controller is used for controlling power supply output.
4. The light charging station of claim 3,
the energy storage converter comprises a first circuit breaker, a direct current filter, an inverter, an alternating current filter, a relay and a second circuit breaker which are electrically connected in sequence;
the first circuit breaker is electrically connected with the bidirectional DCDC converter and the photovoltaic controller through a direct current bus, and the second circuit breaker is electrically connected with the alternating current power distribution cabinet through an alternating current bus; the inverter is in communication connection with the energy management controller.
5. The light charging station of claim 4,
the alternating current power distribution cabinet comprises a third circuit breaker, a first contactor, a second contactor, a fourth circuit breaker and a first ammeter which are electrically connected in sequence, wherein the third circuit breaker is electrically connected with the second circuit breaker in the energy storage converter through the alternating current bus; the first electric meter is electrically connected with the power grid;
the alternating current power distribution cabinet further comprises a second electric meter and a fifth circuit breaker which are electrically connected in sequence, the second electric meter is electrically connected with the first contactor and the second contactor through the alternating current bus respectively, and the fifth circuit breaker is connected with the plurality of charging piles;
the energy management controller is respectively in communication connection with the first contactor and the second contactor.
6. The light charging station of claim 4,
the light stores up and fills integration charging station still includes communication module, communication module with energy management controller communication is connected for with high in the clouds and/or terminal communication connection.
7. The light charging station of claim 6,
the optical storage and charging integrated charging station further comprises a double-path output charger and a first standby power supply, the first standby power supply is connected to the alternating current bus between the alternating current power distribution cabinet and the energy storage converter, and the double-path output charger is powered by the first standby power supply;
the two-way output charger comprises a first voltage output port and a second voltage output port, the photovoltaic controller, the bidirectional DCDC converter, the inverter, the energy management controller and the communication module are powered by the first voltage output port, and the battery management module is powered by the second voltage output port.
8. The light charging station of claim 1,
the light storage and charging integrated charging station further comprises an air conditioning system, and the air conditioning system is connected to the alternating current bus between the alternating current power distribution cabinet and the energy storage converter.
9. The light charging station of claim 1,
the light storage and charging integrated charging station comprises a fire fighting system and a second standby power supply, the second standby power supply is connected to the alternating current bus between the alternating current power distribution cabinet and the energy storage converter, and the fire fighting system is powered by the second standby power supply.
10. The light charging station of claim 1,
the energy management controller is arranged in the alternating current power distribution cabinet.
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| CN201921700826.3U CN211790784U (en) | 2019-10-11 | 2019-10-11 | Light stores up and fills integration charging station |
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| CN112531760A (en) * | 2020-12-07 | 2021-03-19 | 南方电网调峰调频发电有限公司 | Light storage and charging integrated layered coordination control system and control strategy thereof |
| CN113489124A (en) * | 2021-06-11 | 2021-10-08 | 广西大学 | Distributed direct-current energy supply system integrating light, storage, charging and detection technologies and control method |
| CN113541289A (en) * | 2021-04-22 | 2021-10-22 | 杭州隆辉能源科技有限责任公司 | Fill supporting energy storage cabinet of electric pile for energy storage formula |
| CN115498621A (en) * | 2022-09-29 | 2022-12-20 | 杭州铂科电子有限公司 | Light storage and charging integrated device and system |
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| CN116811637A (en) * | 2023-07-06 | 2023-09-29 | 河南格润新能源科技有限公司 | Light stores up fills integrated intelligent charging station |
| CN116995713A (en) * | 2023-09-26 | 2023-11-03 | 江苏华友能源科技有限公司 | Method for utilizing residual electric quantity of retired battery of electric automobile |
| CN116995713B (en) * | 2023-09-26 | 2023-12-08 | 江苏华友能源科技有限公司 | Method for utilizing residual electric quantity of retired battery of electric automobile |
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