WO2023029552A1 - 储能系统控制方法及装置、储能系统、和储能设备 - Google Patents
储能系统控制方法及装置、储能系统、和储能设备 Download PDFInfo
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- WO2023029552A1 WO2023029552A1 PCT/CN2022/091645 CN2022091645W WO2023029552A1 WO 2023029552 A1 WO2023029552 A1 WO 2023029552A1 CN 2022091645 W CN2022091645 W CN 2022091645W WO 2023029552 A1 WO2023029552 A1 WO 2023029552A1
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- WIPO (PCT)
- Prior art keywords
- energy storage
- grid
- storage battery
- power supply
- storage system
- Prior art date
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- Ceased
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; 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
- H02J3/001—Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies
- H02J3/0012—Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies characterised by the contingency detection means in AC networks, e.g. using phasor measurement units [PMU], synchrophasors or contingency analysis
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; 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 networks by storage of energy
- H02J3/32—Arrangements for balancing of the load in networks by storage of energy using batteries or super capacitors with converting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
- H02J7/63—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements against overdischarge
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
- H02J7/663—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements using battery or load disconnect circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/80—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including monitoring or indicating arrangements
- H02J7/82—Control of state of charge [SOC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/865—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/90—Regulation of charging or discharging current or voltage
- H02J7/933—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—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2103/00—Details of circuit arrangements for mains or AC distribution networks
- H02J2103/30—Simulating, planning, modelling, reliability check or computer assisted design [CAD] of electric power networks
- H02J2103/35—Grid-level management of power transmission or distribution systems, e.g. load flow analysis or active network management
Definitions
- the present application relates to the field of energy storage system control, in particular, to an energy storage system control method and device, an energy storage system, and an energy storage device.
- the DC side auxiliary power supply When the grid is powered off and the power of the energy storage battery is low to supply power to the load, the DC side auxiliary power supply will also consume the energy storage energy; or when the system is not in use in standby, the DC side auxiliary power supply will also consume the power of the energy storage battery , if it is not charged in time, it will lead to over-discharge of the energy storage battery, making the system unable to restart, and it will also affect the service life of the energy storage battery and customer experience, and increase the cost of after-sales maintenance.
- this application provides an energy storage system control method and device, an energy storage system, and an energy storage device to solve the problem of power supply to loads or system standby when the grid is powered off and the power of the energy storage battery is low.
- the auxiliary power supply on the DC side will consume the power of the energy storage battery. If it is not charged in time, the energy storage battery will be over-discharged, making it impossible to restart the system. At the same time, it will affect the service life of the energy storage battery and customer experience, and increase after-sales maintenance. The question of cost.
- a method for controlling an energy storage system including the following steps:
- the operating states of the grid, the energy storage battery, the first auxiliary power supply and the second auxiliary power supply are controlled according to the operating parameters of the grid and the state of charge of the energy storage battery.
- the operating parameters of the grid include:
- controlling the power grid, the energy storage battery, the first auxiliary power supply, and the second auxiliary power supply according to the operating parameters of the power grid and the state of charge of the energy storage battery includes:
- control the power grid When the power grid is operating normally, control the power grid to be connected to the energy storage system, control the first auxiliary power supply to work, control the second auxiliary power supply to not work, and judge the energy storage battery according to the power state of the energy storage battery. Check whether the power of the energy storage battery is sufficient.
- the method further comprises:
- controlling the power grid, the energy storage battery, the first auxiliary power supply, and the second auxiliary power supply according to the operating parameters of the power grid and the state of charge of the energy storage battery includes:
- the energy storage battery is controlled to be disconnected from the energy storage system.
- an energy storage system control device including:
- a data acquisition module configured to acquire the operating parameters of the power grid in the energy storage system and the state of charge of the energy storage battery
- a device control module configured to control the working states of the power grid, the energy storage battery, the first auxiliary power supply, and the second auxiliary power supply according to the operating parameters of the power grid and the state of charge of the energy storage battery.
- the first auxiliary power supply is respectively connected to the power grid, the charging and discharging controller, and the grid-connected and off-grid controller;
- the present application provides an energy storage device, including the energy storage system described in the above technical solution.
- the technical solution of the present application provides an energy storage system control method, device, energy storage system and energy storage equipment.
- the operating parameters of the power grid in the energy storage system and the state of charge of the energy storage battery must be obtained; and then according to the operating parameters of the power grid and The power state of the energy storage battery controls the working states of the grid, the energy storage battery, the first auxiliary power supply and the second auxiliary power supply.
- the application scheme considers the operating parameters of the power grid and the power state of the energy storage battery during control, so that the power supply to the load will not occur when the power grid is cut off and the power of the energy storage battery is low, causing the battery to over-discharge.
- the service life of the energy storage battery can be extended and the user experience can be guaranteed.
- Fig. 1 is a schematic diagram of an energy storage system auxiliary power supply method in the related art
- Fig. 2 is a flow chart of an energy storage system control method provided by an embodiment of the present application
- Fig. 4 is a structural diagram of an energy storage system control device provided by an embodiment of the present application.
- Fig. 5 is a schematic structural diagram of an energy storage system provided by an embodiment of the present application.
- the operating parameters of the grid include current, voltage and frequency information of the grid.
- the power state of the energy storage battery includes sufficient power and insufficient power. When the power of the energy storage battery is sufficient, the energy storage battery meets the discharge condition. When the power of the energy storage battery is insufficient, the energy storage battery does not meet the discharge condition.
- the control of the power grid, The working states of the energy storage battery, the first auxiliary power supply and the second auxiliary power supply include the following steps.
- the control grid is connected to the energy storage system to supply power to the load; the first auxiliary power supply is controlled to supply power to the entire energy storage system, and the second auxiliary power supply is controlled not to work; and the energy storage battery is further controlled according to the power condition working status.
- the fourth working mode is when the power grid is abnormal, the energy of the energy storage battery does not meet the discharge conditions, the charging and discharging controller and the grid-connected and off-grid controller work in the low power consumption mode, the relays K3, K4, K5, K6 and the contactors K1, K2 Both are disconnected.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims (10)
- 一种储能系统控制方法,其特征在于,包括:获取所述储能系统中的电网的运行参数以及储能电池的电量状态;根据所述电网的运行参数和所述储能电池的电量状态,控制所述电网、所述储能电池、第一辅助电源以及第二辅助电源的工作状态。
- 根据权利要求1所述的方法,其特征在于:所述电网的运行参数包括:所述电网的电流、电压以及频率信息。
- 根据权利要求2所述的方法,其特征在于:所述根据所述电网的运行参数和所述储能电池的电量状态控制所述电网、所述储能电池、所述第一辅助电源以及所述第二辅助电源的工作状态包括:根据所述电网的所述电流、所述电压以及所述频率信息判断所述电网是否运行正常;当所述电网运行正常时,控制所述电网与所述储能系统连接,控制所述第一辅助电源工作,控制所述第二辅助电源不工作,根据所述储能电池的电量状态判断所述储能电池的电量是否充足。
- 根据权利要求3所述的方法,其特征在于:所述方法进一步包括:当所述储能电池电量充足时,控制所述储能电池与所述储能系统断开连接;当所述储能电池电量不充足时,控制所述储能电池与所述储能系统连接。
- 根据权利要求2所述的方法,其特征在于:所述根据所述电网的运行参数和所述储能电池的电量状态控制所述电网、所述储能电池、所述第一辅助电源以及所述第二辅助电源的工作状态包括:根据所述电网的所述电流、所述电压以及所述频率信息判断所述电网是否运行正常;当所述电网运行异常时,控制所述电网与所述储能系统断开连接,控制所述第一辅助电源不工作,根据所述储能电池的电量状态判断所述储能电池的电量是否充足。
- 根据权利要求5所述的方法,其特征在于:所述方法进一步包括:当所述储能电池电量充足时,控制所述储能电池与所述储能系统连接,控制所述第二辅助电源工作;当所述储能电池电量不能满放电条件时,控制所述储能电池与所述储能系统断开连接。
- 根据权利要求6所述的方法,其特征在于,所述方法还包括:所述当所述储能电池电量不能满足放电条件时,控制所述负载与所述储能系统断开连接,控制所述第二辅助电源、充放电控制器和并网离网控制器运行在低功耗模式。
- 一种储能系统控制装置,其特征在于,包括:数据获取模块(41),用于获取所述储能系统中的电网的运行参数以及储能电池的电量状态;设备控制模块(42),用于根据所述电网的运行参数和所述储能电池的电量状态控制所述电网、所述储能电池、第一辅助电源以及第二辅助电源的工作状态。
- 一种储能系统,其特征在于,包括:储能电池(1)、充放电控制器(DC/DC)、并网离网控制器(DC/AC)、电网(2)、负载(5)、第一辅助电源(3)、第二辅 助电源(4)以及如权利要求8所述的控制装置;所述储能电池(1)与依次连接所述充放电控制器(DC/DC)和并网离网控制器(DC/AC);所述并网离网控制器(DC/AC)分别连接电网(2)以及负载(5);所述第一辅助电源(3)分别连接所述电网(2)、充放电控制器(DC/DC)和并网离网控制器(DC/AC);所述第二辅助电源(4)分别连接所述储能电池(1)、充放电控制器(DC/DC)和并网网离网控制器(DC/AC)。
- 一种储能设备,其特征在于:包括权利要求9所述的储能系统。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22862695.8A EP4401270A4 (en) | 2021-09-06 | 2022-05-09 | METHOD AND DEVICE FOR CONTROLLING AN ENERGY STORAGE SYSTEM, ENERGY STORAGE SYSTEM AND ENERGY STORAGE DEVICE |
| US18/567,954 US12341343B2 (en) | 2021-09-06 | 2022-05-09 | Control method for energy storage system and apparatus, energy storage system, and energy storage device |
| AU2022337487A AU2022337487A1 (en) | 2021-09-06 | 2022-05-09 | Energy storage system control method and apparatus, energy storage system, and energy storage device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111052847.0A CN113922440A (zh) | 2021-09-06 | 2021-09-06 | 一种储能系统控制方法、装置和储能系统及储能设备 |
| CN202111052847.0 | 2021-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023029552A1 true WO2023029552A1 (zh) | 2023-03-09 |
Family
ID=79234288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2022/091645 Ceased WO2023029552A1 (zh) | 2021-09-06 | 2022-05-09 | 储能系统控制方法及装置、储能系统、和储能设备 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12341343B2 (zh) |
| EP (1) | EP4401270A4 (zh) |
| CN (1) | CN113922440A (zh) |
| AU (1) | AU2022337487A1 (zh) |
| WO (1) | WO2023029552A1 (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116990701A (zh) * | 2023-09-27 | 2023-11-03 | 南通中集元能集成科技有限公司 | 一种储能测试系统和储能电池性能测试方法 |
| CN117621891A (zh) * | 2024-01-25 | 2024-03-01 | 杭州闪充聚能新能源有限公司 | 车辆充电系统及储能装置 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922440A (zh) | 2021-09-06 | 2022-01-11 | 珠海格力电器股份有限公司 | 一种储能系统控制方法、装置和储能系统及储能设备 |
| CN115579929B (zh) * | 2022-11-21 | 2023-05-05 | 成都特隆美储能技术有限公司 | 一种用于改善储能系统电池保护的控制方法 |
| CN116317180B (zh) * | 2023-05-22 | 2023-09-22 | 宁德时代新能源科技股份有限公司 | 储能装置及其控制方法 |
| CN120033790A (zh) * | 2023-11-23 | 2025-05-23 | 佛山市顺德区美的电子科技有限公司 | 电池控制方法、控制装置、光储系统及存储介质 |
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| US9577430B2 (en) * | 2010-08-20 | 2017-02-21 | Lg Electronics Inc. | Electronic device and method of controlling power supply therein |
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| CN113131462B (zh) * | 2020-01-10 | 2025-04-25 | 台达电子企业管理(上海)有限公司 | 交流负荷供电系统和方法 |
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| CN112821435B (zh) | 2020-12-31 | 2024-03-22 | 珠海格力电器股份有限公司 | 一种并离网调度方法、装置及储能供电系统 |
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2021
- 2021-09-06 CN CN202111052847.0A patent/CN113922440A/zh active Pending
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2022
- 2022-05-09 EP EP22862695.8A patent/EP4401270A4/en active Pending
- 2022-05-09 AU AU2022337487A patent/AU2022337487A1/en active Pending
- 2022-05-09 US US18/567,954 patent/US12341343B2/en active Active
- 2022-05-09 WO PCT/CN2022/091645 patent/WO2023029552A1/zh not_active Ceased
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116990701A (zh) * | 2023-09-27 | 2023-11-03 | 南通中集元能集成科技有限公司 | 一种储能测试系统和储能电池性能测试方法 |
| CN116990701B (zh) * | 2023-09-27 | 2023-12-22 | 南通中集元能集成科技有限公司 | 一种储能测试系统和储能电池性能测试方法 |
| CN117621891A (zh) * | 2024-01-25 | 2024-03-01 | 杭州闪充聚能新能源有限公司 | 车辆充电系统及储能装置 |
| CN117621891B (zh) * | 2024-01-25 | 2024-06-11 | 杭州闪充聚能新能源有限公司 | 车辆充电系统及储能装置 |
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| EP4401270A1 (en) | 2024-07-17 |
| AU2022337487A1 (en) | 2023-12-14 |
| CN113922440A (zh) | 2022-01-11 |
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| US20240275169A1 (en) | 2024-08-15 |
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