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WO2025138868A1 - Système de stockage d'énergie - Google Patents

Système de stockage d'énergie Download PDF

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Publication number
WO2025138868A1
WO2025138868A1 PCT/CN2024/111689 CN2024111689W WO2025138868A1 WO 2025138868 A1 WO2025138868 A1 WO 2025138868A1 CN 2024111689 W CN2024111689 W CN 2024111689W WO 2025138868 A1 WO2025138868 A1 WO 2025138868A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy storage
battery
energy
management system
communicatively connected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/111689
Other languages
English (en)
Chinese (zh)
Inventor
李琳
曲文强
杨波平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Digital Power Technologies Co Ltd
Original Assignee
Huawei Digital Power Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Digital Power Technologies Co Ltd filed Critical Huawei Digital Power Technologies Co Ltd
Publication of WO2025138868A1 publication Critical patent/WO2025138868A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin

Definitions

  • the present application relates to the field of power electronics, and in particular to an energy storage system.
  • Energy storage equipment has charging and discharging functions. It can store the electric energy converted from new energy when new energy is abundant, and release the electric energy to the power grid and users when new energy is scarce. Due to these characteristics, the energy storage system has more and more application scenarios and its power level is getting larger and larger. An energy storage system often includes multiple battery clusters.
  • the present application provides an energy storage system, which includes: at least one energy storage device, at least one energy storage inverter and an energy management system, wherein the energy management system is communicatively connected to the at least one energy storage device, and the energy management system is communicatively connected to the at least one energy storage inverter; each of the energy storage devices includes at least one battery cluster and at least one battery control unit, each of the battery control units is communicatively connected to at least one of the energy storage inverters, and the battery control units are communicatively connected to the battery clusters in a one-to-one correspondence, the battery control unit is used to monitor the operating information of the battery cluster, send the operating information of the battery cluster to the energy management system, and send the operating information of the battery cluster to the energy storage inverter; the energy storage inverter is used to send the operating information of the battery cluster to the energy management system; the energy management system is used to issue control instructions to the at least one energy storage inverter and the at least one energy storage device; the at least one
  • the battery control unit is connected to the energy storage converter in communication and also connected to the energy management system in communication, realizing the decoupling of battery monitoring and control, and the charging and discharging process of the battery cluster responds faster.
  • the battery control unit is communicatively connected with the battery cluster, and the battery control unit is also communicatively connected with the energy storage inverter, so the connection relationship between the energy storage inverter and the battery cluster can also be automatically identified.
  • the energy storage inverter can send the automatically identified energy storage system topological relationship to the energy management system. In this way, the energy management system can automatically identify the topological relationship in the energy storage system, reducing the cost of manually identifying the topological relationship of the energy storage system.
  • each of the energy storage devices includes a centralized management unit, the centralized management unit is in communication connection with the energy management system, and the at least one battery control unit is used to send the operation information of the battery cluster to the energy management system through the centralized management unit.
  • the energy storage device adopts a distributed architecture, and multiple battery control units are controlled by a centralized management unit, which can accurately monitor and control the battery control units, and the failure of a single battery control unit does not affect the normal operation of other battery control units.
  • each battery control unit in each of the energy storage devices is respectively connected to a centralized management unit in the energy storage device for communication.
  • each battery control unit is respectively connected to a centralized management unit for communication, and when one or more of the multiple battery control units fails, other battery control units can still communicate normally with the centralized management unit.
  • each of the at least one energy storage converter is respectively connected to the energy management system for communication.
  • each energy storage converter is respectively connected to the energy management system for communication, which can ensure that when some energy storage converters fail, other energy storage converters can still work normally.
  • each of the energy storage converters includes a monitoring unit and a control unit, and a first communication line and a second communication line are provided between the monitoring unit and the control unit, and the baud rate of the first communication line is different from the baud rate of the second communication line.
  • the energy storage converter adopts two-way communication to decouple the operation and maintenance information and operation information of the energy storage converter, thereby ensuring that the transmission of the above two types of information does not interfere with each other, and improving the reliability of the operation of the energy storage converter.
  • each battery cluster is power-connected to at least two energy storage converters.
  • the energy storage converters increase the charging and discharging power of the energy storage device by means of parallel operation, and the solution is easy to expand, flexible and reliable.
  • each of the battery control units is communicatively connected to at least two of the energy storage converters.
  • the energy storage converter adopts a parallel technical solution, and a group of parallel energy storage converters are still communicatively connected to a corresponding battery control unit.
  • At least one energy storage inverter is used to receive connection relationship information between the at least one energy storage inverter and the at least one battery control unit, and the connection relationship information is used to send to the energy management system.
  • the energy storage inverter is communicatively connected to the battery control unit, so the connection relationship information between the energy storage inverter and the battery control unit/battery cluster can be automatically identified by the machine without manual work, which greatly improves the identification efficiency and is particularly suitable for high-power application scenarios.
  • the energy management system can automatically identify the topological relationship of the energy storage system.
  • the communication connection method includes CAN communication or FE communication.
  • each of the energy storage devices includes an environmental device, the environmental device is communicatively connected to the centralized management unit, and the environmental device includes fire protection equipment, temperature control equipment, anti-theft equipment, or auxiliary power supply equipment.
  • the environmental device is communicatively connected to the centralized management unit, and the energy management system can monitor or control environmental parameters such as fire protection, temperature control, water immersion, door magnetism, temperature, and humidity of the energy storage device to ensure that the energy storage device is always in an environment suitable for the device to work.
  • the present application provides an energy storage device, which includes a battery cluster, a battery control unit and a centralized management unit, wherein the battery cluster is communicatively connected to the battery control unit, the battery cluster is used to be power-connected to an energy storage inverter, the battery control unit is used to communicate with the energy storage inverter, the centralized management unit is used to communicate with an energy management system, the battery cluster is used to store electrical energy, the battery control unit is used to send battery information of the battery cluster to the centralized management unit, the centralized management unit is used to send the battery information to the energy management system, the energy storage inverter is used to convert between direct current and alternating current, and the energy management system is used to monitor and control the energy storage device and the energy storage inverter.
  • the battery cluster is communicatively connected to the battery control unit
  • the battery cluster is used to be power-connected to an energy storage inverter
  • the battery control unit is used to communicate with the energy storage inverter
  • the centralized management unit is used to communicate with an energy management system
  • the energy storage device includes a plurality of the battery control units, the plurality of the battery control units are communicatively connected in sequence, and the first of the plurality of the battery control units and the last of the plurality of the battery control units are respectively communicatively connected to the centralized management unit.
  • the energy storage device includes a plurality of the battery control units, and each of the plurality of battery control units is respectively communicatively connected to the centralized management unit.
  • the energy storage device includes a plurality of the battery clusters, and each of the plurality of the battery clusters is used to be power-connected to at least two of the plurality of the energy storage converters.
  • the energy storage device includes a plurality of the battery control units, and each of the plurality of the battery control units is respectively used to communicate with at least two of the plurality of the energy storage converters.
  • the energy storage device includes an environmental device, the energy storage device is communicatively connected to the environmental device, and the environmental device includes fire-fighting equipment, temperature control equipment, anti-theft equipment, and auxiliary power supply equipment.
  • the present application provides an energy storage inverter, which is used to communicate with an energy management system and to control the charging and discharging of an energy storage device; the energy storage inverter is used to communicate with a battery control unit in the energy storage device and to receive operating information of a battery cluster sent by the battery control unit; the energy storage inverter is used to send the operating information of the battery cluster to the energy management system; and is used to receive control instructions issued by the energy management system.
  • references to "some embodiments” and the like described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application.
  • the phrases “in some embodiments” and the like appearing in different places in this specification do not necessarily all refer to the same embodiment, but rather mean “one or more but not all embodiments”, unless otherwise specifically emphasized.
  • the terms “include”, “comprising”, “having” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized.
  • Battery control unit BCU, battery control unit. Controls, manages, detects or calculates the electrical and thermal parameters of the battery system.
  • SOC State of charge
  • the capacity that can be released in the current storage battery under the specified discharge conditions accounts for the percentage of the available capacity.
  • State of health SOH, state of health.
  • Battery health status is a comprehensive indicator that describes battery quality.
  • Microprocessor MCU, micro control unit.
  • Controller Area Network CAN, Controller Area Network.
  • CAN is a serial communication bus that can effectively support distributed real-time control with a high level of security.
  • Fast Ethernet Any network that supports the 100Mbit/s Ethernet specification.
  • a communication connection refers to a connection method that establishes communication between connected devices through signal transmission interaction
  • a power connection refers to a connection method that forms a high-power line between connected devices through the transmission of power energy.
  • the embodiments of the present application provide an energy storage system and an energy storage device.
  • the energy storage system includes an energy storage device, an energy storage inverter and an energy management system.
  • the energy storage device is connected to a power grid or a load through the energy storage inverter.
  • the energy storage device is communicatively connected to the energy management system.
  • the energy management system is communicatively connected to the energy storage inverter.
  • the energy storage inverter is communicatively connected and power-connected to the energy storage device.
  • the energy storage inverter is used for converting between direct current and alternating current.
  • the energy management system is used for monitoring and controlling the energy storage device and the energy storage inverter.
  • the energy storage device includes a battery cluster, a battery control unit and a centralized management unit.
  • the battery cluster is communicatively connected to the battery control unit, the battery cluster is power-connected to the energy storage inverter, the battery control unit is communicatively connected to the energy storage inverter, the centralized management unit is communicatively connected to the energy management system, the battery cluster is used to store electric energy, the battery control unit is used to send battery information of the battery cluster to the centralized management unit, and the centralized management unit is used to send the battery information to the energy management system.
  • the energy storage system there is a communication connection between the energy storage device, the energy management system and the energy storage converter, which improves the communication response speed of the entire system, realizes the decoupling of battery power control and battery operation information monitoring, and ensures the reliability of system operation.
  • the energy storage converter is communicated with the battery control unit, and the battery control unit is communicated with the battery cluster.
  • the energy storage converter can send the connection relationship between the battery cluster and the energy storage converter in the energy storage system to the northbound energy management system, so as to realize automatic identification of the topological relationship of the energy storage system.
  • the energy storage converter adopts two-way communication inside, which can decouple the operation and maintenance of the energy storage device and ensure the reliability of the operation of the energy storage device.
  • the energy storage device provided in the embodiments of the present application can be applied to various application scenarios requiring energy storage devices, such as pure storage, photovoltaic storage, and wind storage.
  • the energy storage system 30 is connected to the load 50 and the power grid 60 through the energy storage converter 40, wherein the energy flow between the energy storage system 30 and the energy storage converter 40 is bidirectional, the energy flow between the energy storage converter 40 and the power grid 60 is bidirectional, and the energy flow of the load 50 is unidirectional, and the load 50 can obtain energy from the power system for use by the load 50.
  • the charging and discharging process of the energy storage system 30 can be controlled by setting a specific strategy.
  • the specific strategy is an electricity cost saving strategy.
  • the electricity price of the power grid 60 is low, the energy storage system 30 is controlled to start charging.
  • the electricity price of the power grid 60 is high, the energy storage system 30 is controlled to discharge to supply the load 50 to start.
  • the energy storage system provided in the present application can also be used in conjunction with a photovoltaic power generation device 01.
  • the photovoltaic power generation device 01 includes a photovoltaic module 10 and a photovoltaic inverter 20.
  • the photovoltaic module 10 can convert solar energy into direct current electricity, and the photovoltaic inverter converts direct current into alternating current.
  • the energy source of the energy storage system application scenario is more abundant.
  • the alternating current generated by the photovoltaic power generation device can be supplied to the load 50 and the power grid 60, and can also be converted and stored in the energy storage system 30 through the energy storage converter 40.
  • the types of specific strategies for the application scenarios of the energy storage system are also more abundant.
  • the specific strategy is a photovoltaic power generation self-sufficiency strategy.
  • the photovoltaic power generation device 01 generates electricity, and the generated electricity is first supplied to the load 50 for use, and then stored in the energy storage system 30.
  • the excess electricity can also be supplied to the power grid 60.
  • the energy storage system 30 is preferentially selected to supply power to the load 50.
  • the power grid 60 supplements part of the electricity required by the load 50.
  • the energy storage system usually includes a battery cluster, PCS and EMS.
  • the EMS collects the operating status parameters of the battery cluster and PCS in real time, including the battery cluster power, voltage and real-time power of the PCS, etc.
  • the EMS then issues control instructions to the battery cluster and PCS to control the operating status based on the above operating status parameters and user instructions.
  • the EMS collects operating status parameters and issues control instructions, its communication needs to rely on the communication channel (or communication connection) between the battery cluster, PCS and EMS.
  • the energy storage field is developing in the direction of increasing the battery capacity of the energy storage system and the power of the electrical equipment, which has led to a gradual increase in the number of battery clusters and PCS in the energy storage system.
  • the situation where the PCS and the battery clusters occupy the communication channel with each other has become more prominent, and the energy storage system cannot respond quickly to the control instructions of the EMS; on the other hand, in the existing technology, the installation personnel are required to manually determine the connection status of the battery cluster and the PCS in the energy storage system on site.
  • the number of battery clusters and PCS increases, the difficulty and cost of operating and maintaining the energy storage system increase rapidly, especially in the scenarios of industrial and commercial power stations and large ground power stations.
  • each battery cluster is controlled individually by a BCU, the inconsistency between battery clusters can be reduced or even eliminated, and there is a communication connection between the EMS, BCU and PCS.
  • the control instructions issued by the EMS can be responded to quickly, and the EMS can also collect the operating status parameters of the battery cluster and PCS in a timely manner.
  • the EMS can automatically identify the topological connection mode between the battery cluster and PCS in the energy storage system without manual identification.
  • the energy storage system architecture and specific connection methods of the energy storage system provided by the embodiments of the present application will be described in detail below. It should be understood that the embodiments of the present application provide an energy storage system in a pure energy storage scenario, however, the energy storage system can also be applied to a photovoltaic storage application scenario coupled with photovoltaic power generation, a wind storage application scenario coupled with wind power generation, a water storage application scenario coupled with hydropower generation, a photovoltaic and wind storage application scenario coupled with photovoltaic power generation and wind power generation, etc.
  • the present application does not limit the application scenarios of the energy storage system.
  • FIG. 2 is a schematic diagram of the energy storage system architecture provided in an embodiment of the present application.
  • the dotted line represents the communication connection
  • the solid line represents the power connection.
  • the energy storage system includes an energy storage device, a PCS, and an EMS, wherein the PCS is used to connect to a power grid or a load.
  • the energy storage device has a communication connection with the EMS, the energy storage device has a communication connection and a power connection with the PCS, the EMS has a communication connection with the PCS, and the PCS has a power connection with the power grid or the load.
  • the main component of the energy storage device is a battery, which is used to store electrical energy.
  • the energy storage device is connected to the power grid or the load through the PCS. When the energy storage device is charged, the PCS converts the AC power from the power grid or the load into DC power and supplies it to the energy storage device.
  • the PCS converts the DC power released by the energy storage device into AC power and supplies it to the power grid/load.
  • the EMS is respectively connected to the energy storage device and the PCS for communication. In this way, the energy storage device and the PCS can report the monitored device information and operating parameters to the EMS through two communication paths, and the EMS can also send control signals to the energy storage device and the PCS through two communication paths.
  • the communication between EMS and energy storage equipment is relatively independent from the communication between EMS and PCS, which can improve the response speed of EMS, energy storage equipment and PCS to signals, thereby ensuring the rapid response of the entire energy storage system.
  • PCS is connected to energy storage equipment in communication.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente demande concerne un système de stockage d'énergie. Le système de stockage d'énergie comprend au moins un dispositif de stockage d'énergie, au moins un système de conversion de puissance et un système de gestion d'énergie. Le système de gestion d'énergie est connecté en communication audit au moins un dispositif de stockage d'énergie, et le système de gestion d'énergie est connecté en communication audit au moins un système de conversion de puissance. Chaque dispositif de stockage d'énergie comprend au moins un groupe de batteries et au moins une unité de commande de batterie, chaque unité de commande de batterie est connectée en communication audit système de conversion de puissance, et chaque unité de commande de batterie est connectée en communication à un groupe de batteries correspondant selon une correspondance biunivoque, et est utilisée pour surveiller des informations de fonctionnement du groupe de batteries, envoyer les informations de fonctionnement du groupe de batteries au système de gestion d'énergie et envoyer les informations de fonctionnement du groupe de batteries audit système de conversion de puissance. Le système de gestion d'énergie est utilisé pour délivrer une instruction de commande audit au moins un système de conversion de puissance et audit au moins un dispositif de stockage d'énergie, et ledit au moins un système de conversion de puissance est utilisé pour effectuer une commande de charge et de décharge sur ledit au moins un dispositif de stockage d'énergie. En utilisant la présente demande, la vitesse de réponse du système de stockage d'énergie et celle du dispositif de stockage d'énergie peuvent être augmentées, la portée d'application du système de stockage d'énergie et celle du dispositif de stockage d'énergie sont étendues, les coûts de fonctionnement et d'entretien manuels sont réduits, et l'exigence de charge et de décharge rapides du groupe de batteries est satisfaite.
PCT/CN2024/111689 2023-12-29 2024-08-13 Système de stockage d'énergie Pending WO2025138868A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202311863067.3 2023-12-29
CN202311863067.3A CN117977656A (zh) 2023-12-29 2023-12-29 一种储能系统

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WO2025138868A1 true WO2025138868A1 (fr) 2025-07-03

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Publication number Priority date Publication date Assignee Title
CN117977656A (zh) * 2023-12-29 2024-05-03 华为数字能源技术有限公司 一种储能系统

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CN110970914A (zh) * 2019-11-26 2020-04-07 力神动力电池系统有限公司 一种具有安全保护功能的储能系统
WO2022110983A1 (fr) * 2020-11-26 2022-06-02 许继集团有限公司 Système et procédé de commande coopérative de bms pour centrale électrique de stockage d'énergie électrochimique
CN112865154A (zh) * 2021-03-08 2021-05-28 阳光电源股份有限公司 一种储能系统及其电池簇均衡控制方法
CN220043059U (zh) * 2023-01-08 2023-11-17 深圳市禾望电气股份有限公司 储能系统
CN117977656A (zh) * 2023-12-29 2024-05-03 华为数字能源技术有限公司 一种储能系统

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