CN110932298A - System for utilizing waste storage batteries in whole package in storage and charging station in echelon mode and control method - Google Patents
System for utilizing waste storage batteries in whole package in storage and charging station in echelon mode and control method Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a system and a control method for utilizing waste storage batteries in a whole package of echelons in a storage and charging station, belongs to the field of echelon utilization of waste power storage batteries, aims at solving the problem that the existing charging station cannot meet the charging requirement and needs to realize dynamic capacity expansion urgently, and adopts the following technical scheme: the system for utilizing the waste storage batteries in the whole pack in the charging and discharging station in a echelon mode comprises a charging unit, an energy control system, a power control module, an energy storage converter module, a bidirectional DC/DC module and heterogeneous waste power storage battery packs; each heterogeneous waste power storage battery pack is provided with a bidirectional DC/DC module, and the bidirectional DC/DC module is used for adjusting the output voltage of the heterogeneous waste power storage battery pack connected with the bidirectional DC/DC module so that each heterogeneous waste power storage battery pack obtains the same output voltage; the energy storage converter module is connected with the charging unit in parallel. The control method of the system comprises a charging control method and a discharging control method, and the purpose of realizing dynamic capacity expansion of the charging station by using the waste storage battery can be achieved.
Description
Technical Field
The invention belongs to the field of echelon utilization of waste power storage batteries, and particularly relates to a system for utilizing a whole pack of waste storage batteries in a storage and charging station in an echelon manner and a control method.
Background
The lithium ion battery has the advantages of large capacity, high energy density, no memory, small self-discharge and the like, and is accepted by battery manufacturers and automobile manufacturers. With the rapid development of electric vehicles and large-scale energy storage markets, the output of lithium ion power batteries occupying the largest market share at present also rapidly increases, the number of generated lithium ion batteries must show the well-injection type increase, which also brings a large number of waste batteries which cannot meet the requirements of electric vehicles and are released, the residual capacity of the battery cores is 60-80% of the initial capacity, and how to effectively reuse the batteries to exert the residual value has great significance.
The waste power storage battery pack structure mainly comprises a shell, a Battery Management System (BMS), a power battery, a thermal management system and the like. The traditional gradient utilization of the waste power storage battery pack mainly adopts the modes of disassembly, detection and recombination. However, during the disassembly process, manual operation is generally adopted, short circuit, high-voltage electric shock and the like need to be prevented, and once the operation is improper, the personal safety of operators can be damaged. And each function of the waste power storage battery pack which is normally retired is basically normal, and the whole waste power storage battery pack can be directly utilized in a gradient manner, so that the risk of disassembly is avoided, the disassembly cost is saved, and the recombination cost is reduced. Due to the diversification of power battery technologies, waste power storage batteries which are retired in the current market are also diversified, namely ternary lithium batteries, lithium iron phosphate batteries and the like are divided from a material system, and the three types of batteries are cylindrical, soft packages and square. In the echelon utilization process of waste power storage batteries, the quantity of batteries of the same type is often insufficient, so that echelon utilization cannot be carried out.
Along with electric automobile's development, fill the quantity of electric pile and constantly increase, distribution capacity can't satisfy the demand of charging of filling electric pile, filling the configuration energy storage power station of electric pile, when power consumption is little, the energy storage power station charges, when power consumption is big, the energy storage power station emits the electric quantity in order to satisfy electric automobile demand of charging, dynamic adjustment fills electric pile capacity demand to realize dynamic dilatation, reduce distribution capacity demand.
Therefore, a system which can utilize various heterogeneous waste power storage batteries as energy storage elements and realize dynamic capacity expansion of a charging station is urgently needed, so that the dynamic capacity expansion of the power grid capacity is met while gradient utilization of the waste power storage batteries is realized.
Disclosure of Invention
The invention provides a system and a control method for utilizing waste storage batteries in a whole package of echelons in a storage and charging station, aiming at the problems in the prior art, wherein the waste power storage batteries are used as energy storage elements to realize dynamic capacity expansion of the storage and charging station.
The technical scheme adopted by the invention is as follows: a system for utilizing waste storage batteries in a whole pack in a storage and charging station in a gradient manner comprises a charging unit, an energy control system, a power control module, an energy storage converter module, a plurality of bidirectional DC/DC modules and a plurality of heterogeneous waste power storage battery packs, wherein the power control module, the energy storage converter module, the plurality of bidirectional DC/DC modules and the plurality of heterogeneous waste power storage battery packs are respectively connected with the energy control system through communication lines; wherein:
the energy control system is used for respectively controlling the energy storage converter module, the bidirectional DC/DC modules and the heterogeneous waste power storage battery packs to charge or discharge the waste power storage battery packs so as to realize dynamic capacity expansion of the charging unit;
each heterogeneous waste power storage battery pack comprises a plurality of waste power storage battery modules, each heterogeneous waste power storage battery pack is provided with a bidirectional DC/DC module, and the output end of each bidirectional DC/DC module is respectively connected with the direct current end of the energy storage converter module through a direct current bus, so that each heterogeneous waste power storage battery pack is electrically isolated and connected in parallel;
the bidirectional DC/DC module is used for adjusting the output voltage of the heterogeneous waste power storage battery packs connected with the bidirectional DC/DC module so that each heterogeneous waste power storage battery pack obtains the same output voltage at the position of the direct current bus;
the alternating current end of the energy storage converter module is connected with the charging unit in parallel, and the parallel end of the energy storage converter module and the charging unit is connected to an alternating current bus connected with a power grid;
the power control module is connected with the current transformer through a communication line and used for monitoring the real-time power at the current transformer and feeding back the result to the energy management system.
In the system, the heterogeneous waste power storage battery pack is used as an energy storage element of the charging unit, so that the dynamic expansion of the charging unit is realized; because the waste power storage battery modules are different in source and material (such as ternary lithium batteries, lithium iron phosphate batteries and the like), and different voltages are carried, the output voltage values of a plurality of heterogeneous waste power storage battery packs cannot be guaranteed to be the same, and after the heterogeneous waste power storage battery packs are regulated by the bidirectional DC/DC module, the output voltage values of all the heterogeneous waste power storage battery packs before entering the energy storage converter module can be guaranteed to be the same, so that the stable voltage can be obtained at the energy storage converter module, and the energy storage converter module can be conveniently treated; and the heterogeneous waste power storage battery pack is completely utilized, the traditional disassembling step is omitted, the safety and the cost are saved, and the gradient utilization of the waste power storage battery is facilitated.
Further, the waste power storage battery modules in each heterogeneous waste power storage battery pack are connected in series and/or in parallel.
Further, each heterogeneous waste power storage battery pack is provided with a battery management system BMS, and the battery management system BMS is connected with an energy control system. The waste power storage battery is provided with a Battery Management System (BMS), so that the utilization rate of the battery can be improved, and the battery is prevented from being overcharged and overdischarged.
Further, the charging unit is composed of a charging module DC/AC and a charging gun which are connected together in series.
The control method of the system for utilizing the waste storage batteries in the whole pack of storage and charging stations in a gradient manner comprises a charging control method and a discharging control method, and is carried out according to the following steps:
step 2, a charging or discharging control method specifically comprises the following steps:
1) the charging control method comprises the following steps: when the power grid is in a power consumption valley period and the real-time power fed back by the power monitoring module to the charging unit is smaller than the set power, the whole pack of system utilizing the waste storage battery in the charging station is in a charging state, the energy management system regulates the energy storage converter module to rectify according to the power fed back by the power detection module, so that the electric energy is transmitted to a direct current bus through the energy storage converter module and is distributed to each bidirectional DC/DC module, and each bidirectional DC/DC module regulates according to the set power in the energy management system to charge the corresponding heterogeneous waste power storage battery pack;
2) the discharge control method comprises the following steps: when a power grid is in a power supply peak period and the real-time power fed back by the power monitoring module to the charging unit is greater than the set power, the whole pack of system utilizing the waste storage batteries in the charging station is in a discharging state, the energy management system controls the energy storage converter module and the DC/DC module to discharge according to the respective set power, meanwhile, the energy management system respectively adjusts each heterogeneous waste power storage battery pack according to the power fed back by the power detection module, so that after the output voltage of each heterogeneous waste power storage battery pack is ensured to be consistent through adjustment of the corresponding bidirectional DC/DC module, electric energy is input to a direct current bus, the direct current bus transmits the electric energy to the energy storage converter module, and the energy control system adjusts the energy storage converter module to discharge and charge the charging unit.
When the power grid is in a power consumption valley period, energy flows from the power grid to the heterogeneous waste power storage battery pack to charge the heterogeneous waste power storage battery pack, and when the power grid is in a power supply peak period, the energy flows from the heterogeneous waste power storage battery pack to the charging unit, and the heterogeneous waste power battery pack charges the charging unit, so that dynamic expansion of the power distribution capacity of the storage and charging station is realized, the power supply pressure of the power grid is reduced, and the stability of the power grid is maintained.
Further, in step 2, setting protection values of a charging protection voltage, a single charging protection voltage and a maximum state of charge protection voltage for each heterogeneous waste power storage battery pack, associating the protection values with an energy management system, and when one of the charging protection voltage, the single charging protection voltage or the maximum state of charge protection voltage reaches the protection value, controlling the energy storage converter module and the DC/DC module to stop working and stop charging by the energy management system. This arrangement avoids overcharging, protects heterogeneous waste power storage battery packs for cyclic utilization.
Further, in step 2, setting protection values of discharge protection voltage, single battery discharge protection voltage and minimum state of charge protection voltage for each heterogeneous waste power storage battery pack, associating the protection values with an energy management system, and when one of the discharge protection voltage, the single discharge protection voltage or the minimum state of charge protection voltage reaches the protection value, controlling the energy storage converter module and the DC/DC module to stop working and stop discharging by the energy management system. The arrangement avoids over-discharge and protects the heterogeneous waste power storage battery pack so as to ensure that the heterogeneous waste power storage battery pack has longer cycle service life.
The system for utilizing the waste storage batteries in the whole package in the storage and charging station and the control method have the beneficial effects that:
1. a plurality of heterogeneous waste power storage battery packs are used in the system, and the heterogeneous waste power storage battery packs are completely used, so that the traditional disassembling step is omitted, the cost is saved, and the echelon utilization of the waste power storage batteries is feasible.
2. Each heterogeneous waste power storage battery pack is provided with a DC/DC module, stable voltage is obtained at the energy storage converter module, and the energy storage converter module is convenient to process.
3. The charging power of the charging unit is monitored in real time through the power monitoring module, the charging and discharging power of the energy storage converter is adjusted, and dynamic capacity expansion of the power distribution capacity of the energy storage and charging station is achieved.
4. The heterogeneous waste power storage battery pack is charged in the valley period and discharged in the peak period, so that the power supply pressure of a power grid is reduced, and the stability of the power grid is improved.
Drawings
Fig. 1 is a schematic structural diagram of a system for utilizing waste storage batteries in a whole pack in a storage and charging station in a gradient manner.
Detailed Description
The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
The system for utilizing the waste storage batteries in a whole pack in a echelon manner in the charging and discharging station of the embodiment comprises a charging unit, an energy control system, a power control module, an energy storage converter module, a plurality of bidirectional DC/DC modules and a plurality of heterogeneous waste power storage battery packs, wherein the power control module, the energy storage converter module, the plurality of bidirectional DC/DC modules and the plurality of heterogeneous waste power storage battery packs are respectively connected with the energy control system through communication lines, as shown; wherein:
the energy control system is used for respectively controlling the energy storage converter module, the bidirectional DC/DC modules and the heterogeneous waste power storage battery packs to charge or discharge the waste power storage battery packs so as to realize dynamic capacity expansion of the charging unit;
each heterogeneous waste power storage battery pack comprises a plurality of waste power storage battery modules, each heterogeneous waste power storage battery pack is provided with a bidirectional DC/DC module, and the output end of each bidirectional DC/DC module is respectively connected with the direct current end of the energy storage converter module through a direct current bus, so that each heterogeneous waste power storage battery pack is electrically isolated and connected in parallel;
the bidirectional DC/DC module is used for adjusting the output voltage of the heterogeneous waste power storage battery packs connected with the bidirectional DC/DC module so that each heterogeneous waste power storage battery pack obtains the same output voltage at the position of the direct current bus;
the alternating current end of the energy storage converter module is connected with the charging unit in parallel, and the parallel end of the energy storage converter module and the charging unit is connected to an alternating current bus connected with a power grid;
the power control module is connected with the current transformer through a communication line and used for monitoring the real-time power at the current transformer and feeding back the result to the energy management system.
In the system, the heterogeneous waste power storage battery pack is used as an energy storage element of the charging unit, so that the dynamic expansion of the charging unit is realized; because the waste power storage battery modules are different in source and material (such as ternary lithium batteries, lithium iron phosphate batteries and the like), and different voltages are carried, the output voltage values of a plurality of heterogeneous waste power storage battery packs cannot be guaranteed to be the same, and after the heterogeneous waste power storage battery packs are regulated by the bidirectional DC/DC module, the output voltage values of all the heterogeneous waste power storage battery packs before entering the energy storage converter module can be guaranteed to be the same, so that the stable voltage can be obtained at the energy storage converter module, and the energy storage converter module can be conveniently treated; and the heterogeneous waste power storage battery pack is completely utilized, the traditional disassembling step is omitted, the safety and the cost are saved, and the gradient utilization of the waste power storage battery is facilitated.
The waste power storage battery modules in each heterogeneous waste power storage battery pack are connected in series and/or in parallel.
Each heterogeneous waste power storage battery pack is provided with a battery management system BMS, and the battery management system BMS is connected with an energy control system. The waste power storage battery is provided with a Battery Management System (BMS), so that the utilization rate of the battery can be improved, and the battery is prevented from being overcharged and overdischarged.
The charging unit consists of a charging module DC/AC and a charging gun which are connected together in series.
The control method of the system for utilizing the waste storage batteries in the whole pack of storage and charging stations in a gradient manner comprises a charging control method and a discharging control method, and is carried out according to the following steps:
step 2, a charging or discharging control method specifically comprises the following steps:
1) the charging control method comprises the following steps: when the power grid is in a power consumption valley period and the real-time power fed back by the power monitoring module to the charging unit is smaller than the set power, the whole pack of system utilizing the waste storage battery in the charging station is in a charging state, the energy management system regulates the energy storage converter module to rectify according to the power fed back by the power detection module, so that the electric energy is transmitted to a direct current bus through the energy storage converter module and is distributed to each bidirectional DC/DC module, and each bidirectional DC/DC module regulates according to the set power in the energy management system to charge the corresponding heterogeneous waste power storage battery pack;
2) the discharge control method comprises the following steps: when a power grid is in a power supply peak period and the real-time power fed back by the power monitoring module to the charging unit is greater than the set power, the whole pack of system utilizing the waste storage batteries in the charging station is in a discharging state, the energy management system controls the energy storage converter module and the DC/DC module to discharge according to the respective set power, meanwhile, the energy management system respectively adjusts each heterogeneous waste power storage battery pack according to the power fed back by the power detection module, so that after the output voltage of each heterogeneous waste power storage battery pack is ensured to be consistent through adjustment of the corresponding bidirectional DC/DC module, electric energy is input to a direct current bus, the direct current bus transmits the electric energy to the energy storage converter module, and the energy control system adjusts the energy storage converter module to discharge and charge the charging unit.
When the power grid is in a power consumption valley period, energy flows from the power grid to the heterogeneous waste power storage battery pack to charge the heterogeneous waste power storage battery pack, and when the power grid is in a power supply peak period, the energy flows from the heterogeneous waste power storage battery pack to the charging unit, and the heterogeneous waste power battery pack charges the charging unit, so that dynamic expansion of the power distribution capacity of the storage and charging station is realized, the power supply pressure of the power grid is reduced, and the stability of the power grid is maintained.
In the step 2, protection values of charging protection voltage, monomer charging protection voltage and maximum charge state protection voltage are set for each heterogeneous waste power storage battery pack and are associated with an energy management system, and when one of the charging protection voltage, the monomer charging protection voltage or the maximum charge state protection voltage reaches the protection value, the energy management system controls an energy storage converter module and a DC/DC module to stop working and stop charging. This arrangement avoids overcharging, protects heterogeneous waste power storage battery packs for cyclic utilization.
In the step 2, protection values of discharge protection voltage, single battery discharge protection voltage and minimum charge state protection voltage are set for each heterogeneous waste power storage battery pack and are associated with an energy management system, and when one of the discharge protection voltage, the single discharge protection voltage or the minimum charge state protection voltage reaches the protection value, the energy management system controls the energy storage converter module and the DC/DC module to stop working and stop discharging. The arrangement avoids over-discharge and protects the heterogeneous waste power storage battery pack so as to ensure that the heterogeneous waste power storage battery pack has longer cycle service life.
While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art will appreciate that the invention includes, but is not limited to, the accompanying drawings and the description of the embodiments above. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (6)
1. A system for utilizing waste storage batteries in a whole pack in a storage and charging station in a gradient manner is characterized by comprising a charging unit, an energy control system, a power control module, an energy storage converter module, a plurality of bidirectional DC/DC modules and a plurality of heterogeneous waste power storage battery packs, wherein the power control module, the energy storage converter module, the plurality of bidirectional DC/DC modules and the plurality of heterogeneous waste power storage battery packs are respectively connected with the energy control system through communication lines; wherein:
the energy control system is used for respectively controlling the energy storage converter module, the bidirectional DC/DC modules and the heterogeneous waste power storage battery packs to charge or discharge the waste power storage battery packs so as to realize dynamic capacity expansion of the charging unit;
each heterogeneous waste power storage battery pack comprises a plurality of waste power storage battery modules, each heterogeneous waste power storage battery pack is provided with a bidirectional DC/DC module, and the output end of each bidirectional DC/DC module is respectively connected with the direct current end of the energy storage converter module through a direct current bus, so that each heterogeneous waste power storage battery pack is electrically isolated and connected in parallel;
the bidirectional DC/DC module is used for adjusting the output voltage of the heterogeneous waste power storage battery packs connected with the bidirectional DC/DC module so that each heterogeneous waste power storage battery pack obtains the same output voltage at the position of the direct current bus;
the alternating current end of the energy storage converter module is connected with the charging unit in parallel, and the parallel end of the energy storage converter module and the charging unit is connected to an alternating current bus connected with a power grid;
the power control module is connected with the current transformer through a communication line and used for monitoring the real-time power at the current transformer and feeding back the result to the energy management system.
2. The system for the entire bag of waste storage batteries in a storage and charging station according to claim 1, wherein each heterogeneous waste power storage battery bag is equipped with a battery management system BMS, and the battery management system BMS is connected with an energy control system.
3. The system for full package echelon utilization of waste storage batteries in storage and charging stations as claimed in claim 1, wherein said charging unit is composed of charging modules DC/AC and charging guns connected in series.
4. The control method of the system for utilizing the waste storage batteries in the whole package of echelons in the storage and charging station is characterized by comprising a charging control method and a discharging control method, and is carried out according to the following steps:
step 1, preparing: setting the set power of a charging unit, an energy storage converter module and a DC/DC module in an energy management system, detecting the real-time power of the charging unit by a power detection module, and feeding the result back to the energy management system;
step 2, a charging or discharging control method specifically comprises the following steps:
1) the charging control method comprises the following steps: when the power grid is in a power consumption valley period and the real-time power fed back by the power monitoring module to the charging unit is smaller than the set power, the whole pack of system utilizing the waste storage battery in the charging station is in a charging state, the energy management system regulates the energy storage converter module to rectify according to the power fed back by the power detection module, so that the electric energy is transmitted to a direct current bus through the energy storage converter module and is distributed to each bidirectional DC/DC module, and each bidirectional DC/DC module regulates according to the set power in the energy management system to charge the corresponding heterogeneous waste power storage battery pack;
2) the discharge control method comprises the following steps: when a power grid is in a power supply peak period and the real-time power fed back by the power monitoring module to the charging unit is greater than the set power, the whole pack of system utilizing the waste storage batteries in the charging station is in a discharging state, the energy management system controls the energy storage converter module and the DC/DC module to discharge according to the respective set power, meanwhile, the energy management system respectively adjusts each heterogeneous waste power storage battery pack according to the power fed back by the power detection module, so that after the output voltage of each heterogeneous waste power storage battery pack is ensured to be consistent through adjustment of the corresponding bidirectional DC/DC module, electric energy is input to a direct current bus, the direct current bus transmits the electric energy to the energy storage converter module, and the energy control system adjusts the energy storage converter module to discharge and charge the charging unit.
5. The method as claimed in claim 4, wherein in step 2, protection values of the charge protection voltage, the single charge protection voltage and the maximum state of charge protection voltage are set for each heterogeneous waste power storage battery pack, and are associated with the energy management system, and when one of the charge protection voltage, the single charge protection voltage or the maximum state of charge protection voltage reaches the protection value, the energy management system controls the energy storage converter module and the DC/DC module to stop working and stop charging.
6. The method according to claim 4, wherein in step 2, protection values of discharge protection voltage, cell discharge protection voltage and minimum state of charge protection voltage are set for each heterogeneous waste power storage battery pack, and are associated with the energy management system, and when one of the discharge protection voltage, the cell discharge protection voltage and the minimum state of charge protection voltage reaches the protection value, the energy management system controls the energy storage converter module and the DC/DC module to stop working and stop discharging.
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| CN111585356A (en) * | 2020-07-02 | 2020-08-25 | 阳光电源股份有限公司 | Capacity expansion method of energy storage system and energy storage system |
| CN111816938A (en) * | 2020-07-06 | 2020-10-23 | 安徽恒明工程技术有限公司 | Gradient utilization method for retired battery |
| CN112356720A (en) * | 2021-01-18 | 2021-02-12 | 常州易之赢物联网科技有限公司 | Direct current intelligent charging stake |
| CN112366796A (en) * | 2020-12-03 | 2021-02-12 | 南方电网科学研究院有限责任公司 | Energy storage system semi-physical simulation platform for gradient utilization of ex-service battery |
| CN112564224A (en) * | 2020-12-09 | 2021-03-26 | 深圳市未蓝新能源科技有限公司 | System integration and control method for power battery echelon used for energy storage power station |
| CN112968522A (en) * | 2021-02-20 | 2021-06-15 | 国网重庆市电力公司电力科学研究院 | Multi-load direct regulation and control system and method thereof |
| CN113765163A (en) * | 2020-06-01 | 2021-12-07 | 蓝谷智慧(北京)能源科技有限公司 | Control method, device and system for whole-pack echelon battery energy storage charging system |
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| CN114243821A (en) * | 2021-12-06 | 2022-03-25 | 上海电气国轩新能源科技有限公司 | Battery energy storage system and management method thereof |
| WO2023005212A1 (en) * | 2021-07-26 | 2023-02-02 | 西安快舟机电科技有限公司 | Energy storage module, and vehicle-mounted charging system and charging method therefor |
| CN117039224A (en) * | 2023-10-09 | 2023-11-10 | 河南锂动电源有限公司 | Lithium battery echelon utilization energy storage system |
| CN118316094A (en) * | 2024-06-11 | 2024-07-09 | 国网辽宁省电力有限公司电力科学研究院 | Charging, discharging and storing integrated bidirectional energy intelligent collaboration system and method |
| CN118630884A (en) * | 2024-08-13 | 2024-09-10 | 比亚迪股份有限公司 | Energy storage system |
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