WO2022110983A1 - Système et procédé de commande coopérative de bms pour centrale électrique de stockage d'énergie électrochimique - Google Patents

Système et procédé de commande coopérative de bms pour centrale électrique de stockage d'énergie électrochimique Download PDF

Info

Publication number
WO2022110983A1
WO2022110983A1 PCT/CN2021/118420 CN2021118420W WO2022110983A1 WO 2022110983 A1 WO2022110983 A1 WO 2022110983A1 CN 2021118420 W CN2021118420 W CN 2021118420W WO 2022110983 A1 WO2022110983 A1 WO 2022110983A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy storage
soc
bms
management system
charge
Prior art date
Application number
PCT/CN2021/118420
Other languages
English (en)
Chinese (zh)
Inventor
谢青松
李献伟
张鹏远
徐军
陈玉玺
王法宁
张鹏
籍凡姝
阮仕双
舒琪启
Original Assignee
许继集团有限公司
许继电气股份有限公司
许昌许继软件技术有限公司
国家电网有限公司
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 许继集团有限公司, 许继电气股份有限公司, 许昌许继软件技术有限公司, 国家电网有限公司 filed Critical 许继集团有限公司
Publication of WO2022110983A1 publication Critical patent/WO2022110983A1/fr

Links

Images

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
    • 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
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • 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
    • H01M10/44—Methods for charging or discharging
    • 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

Definitions

  • the present invention provides a BMS collaborative control system and method for an electrochemical energy storage power station, which interconnects the BMSs of different energy storage compartments, realizes the sharing of the battery SOC of each energy storage compartment, and enables each energy storage compartment to share the SOC.
  • the BMS integrates its own SOC and the SOC of other cabins, and determines whether the battery in the cabin needs to be charged and discharged to keep its own SOC and the SOC of other cabins at the same level, so as to realize the coordinated control of the entire station BMS.
  • it also includes a communication network for data between the battery management system BMS and the energy storage converter PCS, between the energy storage converter PCS and the energy management system EMS, and between the battery management system BMS and the EMS interact.
  • the comparison unit further includes calculating a discharge cut-off threshold value during discharging, and when the battery state of charge SOC data collected by the corresponding collection unit is greater than the discharge cut-off threshold value, continue to discharge, otherwise output a stop discharge request signal; the comparison unit further includes: The charging cut-off threshold is calculated during charging, and when the SOC data of the battery state of charge collected by the corresponding acquisition unit is less than the charging cut-off threshold, the charging is continued, otherwise a stop charging request signal is output.
  • the energy management system EMS when receiving a charge and discharge request, controls the corresponding energy storage converter PCS to charge and discharge the energy storage compartment.
  • the discharge cut-off threshold is calculated, and when the battery state of charge SOC data collected by the corresponding acquisition unit is greater than the discharge cut-off threshold, the discharge is continued, otherwise a stop discharge request signal is output;
  • the i-th battery management system BMS i calculates the charging cut-off threshold during charging. When the battery state of charge SOC data collected by the corresponding acquisition unit is less than the charging cut-off threshold, it continues to charge, otherwise it outputs a stop charging request signal.
  • each of the battery management systems BMS collects the battery state of charge SOC data of the energy storage compartment where it is located and sends it through a communication network, and obtains the battery state of charge SOC data of other energy storage compartments through the communication network.
  • the i-th battery management system BMS i obtains the battery state of charge SOC data of other battery management systems
  • the i-th battery management system BMS i judges the current state of the i-th energy storage compartment; if it is in a stationary state, go to step (3), otherwise return to step (1);
  • the i-th battery management system BMS i judges whether its own battery state of charge SOC i satisfies: k 1 *SOC ave ⁇ SOC i ⁇ k 2 *SOC ave , where k 1 and k 2 are charging and discharging threshold coefficients respectively , k 1 is less than 1, and k 2 is greater than 1; if it is satisfied, go back to step (3); otherwise, if SOC i >k 2 *SOC ave , then go to step (5), if SOC i ⁇ k 1 *SOC ave , then Enter step (7);
  • the i-th battery management system BMS i sends a discharge request signal to the energy storage monitoring and energy management system EMS, and the energy storage monitoring and energy management system EMS sends a discharge control command to the i-th energy storage converter PCS i to control the The i-th energy storage converter PCS i discharges the i-th energy storage tank;
  • the BMS of each energy storage compartment of the present invention integrates its own SOC and the SOC of other compartments to determine whether the battery in the compartment needs to be charged and discharged to keep its own SOC and the SOC of other compartments at the same level, and the balance of SOC among compartments is conducive to storage The overall efficient operation of the power station.
  • Figure 1 is a schematic diagram of an existing energy storage station
  • Fig. 3 is the control flow chart of BMS 1 .
  • the energy storage cabin 1 built-in energy storage battery, battery management system (Battery Management System, hereinafter referred to as: BMS), etc.
  • BMS Battery Management System
  • an energy storage station usually contains one or more Storage compartment.
  • BMS Battery nanny or battery housekeeper.
  • the acquisition module, control module, display module, communication module, and supporting electrical equipment, etc. are usually installed in the energy storage compartment, and one energy storage compartment can be configured with one or more sets of BMS.
  • EMS energy storage monitoring and energy management system, energy management system, referred to as: EMS
  • EMS energy management system
  • a computer application system for information collection, processing, monitoring, control, operation management and other functions of electrical secondary equipment and other in-station equipment such as video and environmental monitoring equipment, and for energy flow optimization and scheduling according to the application scenarios of energy storage stations.
  • the energy storage station is equipped with a station-level energy management system.
  • a communication network 6 is set between the PCS and the EMS for data exchange between the PCS and the EMS.
  • a communication network 7 is set between the BMS and the EMS for data exchange between the BMS and the EMS.
  • Another aspect of the present invention provides a BMS collaborative control method for an electrochemical energy storage power station, comprising the following steps:
  • the i-th battery management system BMS i obtains the battery state of charge SOC data of other battery management systems through the communication network 8;
  • the i-th battery management system BMS i judges the current state of the i-th energy storage compartment; if it is in a stationary state, go to step (3), if it is a charging state, go to step (1), if it is a discharging state, go to step (1) step 1);
  • the i-th battery management system BMS i calculates the battery state-of-charge average value SOC ave of all energy storage compartments
  • the i-th battery management system BMS i judges whether its own battery state of charge SOC i satisfies: k 1 *SOC ave ⁇ SOC i ⁇ k 2 *SOC ave , where k 1 and k 2 are charging and discharging threshold coefficients respectively , k 1 is less than 1, and k 2 is greater than 1; if it is satisfied, go back to step (3); otherwise, if SOC i >k 2 *SOC ave , then go to step (5), if SOC i ⁇ k 1 *SOC ave , then Enter step (7);
  • Step 1 the BMS 1 obtains the SOC data SOC 1 to SOC n of the BMS 2 to BMS n through the communication network 8;
  • Step 3 BMS 1 calculates the SOC average SOC ave of all energy storage compartments
  • Step 4 BMS 1 judges whether its own SOC 1 satisfies condition 1: k 1 *SOC ave ⁇ SOC 1 ⁇ k 2 *SOC ave , where k 1 and k 2 are SOC coefficients, k 1 is less than 1, and k 2 is greater than 1; if If SOC 1 satisfies condition 1, go back to step 3; if SOC 1 does not satisfy condition 1, then further judge, if SOC 1 >k 2 *SOC ave , go to step 5, if SOC 1 ⁇ k 1 *SOC ave , go to step 5 step 7;
  • Step 5 The BMS 1 sends a discharge request signal to the EMS, and the EMS sends a discharge control command to the PCS 1 to control the PCS 1 to discharge the energy storage compartment 1;
  • Step 6 BMS 1 calculates whether its own SOC 1 satisfies condition 2: SOC 1 ⁇ k 3 *SOC ave , where k 3 is the SOC coefficient, 1 ⁇ k 3 ⁇ k 2 ; if SOC 1 does not satisfy condition 2, continue to discharge, If the SOC 1 satisfies the condition 2, the BMS 1 sends a stop discharge request signal to the EMS, and the EMS sends a stop discharge control command to the PCS 1 to control the PCS 1 to stop the discharge operation of the energy storage compartment 1, and turn to step 1.
  • Step 7 The BMS 1 sends a charging request signal to the EMS, and the EMS sends a charging control command to the PCS 1 to control the PCS 1 to charge the energy storage compartment 1; the BMS 1 calculates whether its own SOC 1 satisfies the condition 3: SOC 1 ⁇ k 4 * SOC ave , where k 4 is the SOC coefficient, k 1 ⁇ k 4 ⁇ 1;
  • SOC 1 does not meet condition 3
  • BMS 1 sends a stop charging request signal to EMS
  • EMS sends a stop charging control command to PCS 1 , and controls PCS 1 to stop charging energy storage compartment 1 operation, go to step 1.
  • the present invention relates to a BMS collaborative control system and method for an electrochemical energy storage power station.
  • a communication network is set up for the BMS of each energy storage compartment, and the BMSs of different energy storage compartments are interconnected to realize the battery SOC of each energy storage compartment. Sharing, the BMS of each energy storage cabin can obtain the battery SOC and other data of the BMS in all other cabins.
  • the BMS of each energy storage cabin integrates its own SOC and the SOC of other cabins, and determines whether the battery in the cabin needs to be charged and discharged to keep its own SOC and the SOC of other cabins at the same level.
  • the SOC balance between cabins is conducive to the overall efficient operation of the energy storage power station. Through holographic data analysis, it interacts with EMS and PCS in two directions to realize the coordinated control of the entire station BMS.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

La présente invention concerne un système et un procédé de commande coopérative de BMS pour une centrale électrique de stockage d'énergie électrochimique. Un réseau de communication est prévu pour un BMS de chaque cabine de stockage d'énergie, et les BMS de différentes cabines de stockage d'énergie sont interconnectés et communiquent entre eux, de telle sorte qu'un partage de SOC de batterie de chaque cabine de stockage d'énergie est réalisé, et le BMS de chaque cabine de stockage d'énergie peut acquérir des données telles qu'un SOC de batterie des BMS de toutes les autres cabines. Le BMS de chaque cabine de stockage d'énergie détermine, par synthèse du SOC de celle-ci et du SOC d'autres cabines, si la batterie de la présente cabine a besoin d'être chargée et déchargée pour maintenir son SOC au même niveau que le SOC d'autres cabines, et l'égalisation de SOC inter-cabines facilite le fonctionnement efficace général de la centrale électrique de stockage d'énergie. À l'aide d'une analyse de données holographiques, une interaction bidirectionnelle avec un EMS et un PCS est en outre effectuée, et une commande coopérative de BMS de l'ensemble de la station est réalisée.
PCT/CN2021/118420 2020-11-26 2021-09-15 Système et procédé de commande coopérative de bms pour centrale électrique de stockage d'énergie électrochimique WO2022110983A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011348230.9A CN112531828B (zh) 2020-11-26 2020-11-26 一种电化学储能电站bms协同控制系统及方法
CN202011348230.9 2020-11-26

Publications (1)

Publication Number Publication Date
WO2022110983A1 true WO2022110983A1 (fr) 2022-06-02

Family

ID=74993720

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/118420 WO2022110983A1 (fr) 2020-11-26 2021-09-15 Système et procédé de commande coopérative de bms pour centrale électrique de stockage d'énergie électrochimique

Country Status (2)

Country Link
CN (1) CN112531828B (fr)
WO (1) WO2022110983A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115566709A (zh) * 2022-09-13 2023-01-03 中国电力科学研究院有限公司 一种储能变流器单机能量就地控制方法及装置
CN116027206A (zh) * 2023-03-29 2023-04-28 安徽中科中涣智能装备股份有限公司 基于站级储能的多元感知分级预警智能监测系统
CN117353598A (zh) * 2023-12-06 2024-01-05 上海百竹成航新能源有限责任公司 一种储能变流器及储能系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11942607B2 (en) 2020-08-30 2024-03-26 Schneider Electric It Corporation Systems and methods to improve battery pack shelf-life
CN112531828B (zh) * 2020-11-26 2023-02-10 许继集团有限公司 一种电化学储能电站bms协同控制系统及方法
CN117674331A (zh) * 2022-08-30 2024-03-08 广东美的制冷设备有限公司 储能电池系统及其控制方法、控制器、存储介质
CN116072998B (zh) * 2023-03-06 2023-08-11 宁德时代新能源科技股份有限公司 储能系统的通信方法、装置、系统、设备、介质和产品

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103337869A (zh) * 2013-07-17 2013-10-02 国家电网公司 一种新型电池储能系统及其功能一体化设计的方法
CN103746398A (zh) * 2013-11-28 2014-04-23 安徽启光能源科技研究院有限公司 一种应用于电网的移动储能系统
CN108376989A (zh) * 2018-02-13 2018-08-07 中国电力科学研究院有限公司 一种基于多智能体的电池储能电站分区控制方法及系统
WO2019221361A1 (fr) * 2018-05-14 2019-11-21 엘에스산전 주식회사 Système de gestion d'énergie
CN112531828A (zh) * 2020-11-26 2021-03-19 许继集团有限公司 一种电化学储能电站bms协同控制系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9660450B2 (en) * 2013-10-17 2017-05-23 Zhangjiakou Wind And Solar Power Energy Demonstration Monitoring system and method for megawatt level battery energy storage power plant
CN103682482A (zh) * 2013-11-22 2014-03-26 超威电源有限公司 一种无线智能电池
CN109193776B (zh) * 2018-10-08 2020-05-01 江苏纳通能源技术有限公司 一种适用于梯次电池储能的功率分配方法
CN110588434A (zh) * 2019-09-17 2019-12-20 阳光电源股份有限公司 一种储能系统及其电池管理方法和系统
CN110676525A (zh) * 2019-10-09 2020-01-10 国网冀北综合能源服务有限公司 用于储能电站的电池能量控制系统的电池能量控制方法
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103337869A (zh) * 2013-07-17 2013-10-02 国家电网公司 一种新型电池储能系统及其功能一体化设计的方法
CN103746398A (zh) * 2013-11-28 2014-04-23 安徽启光能源科技研究院有限公司 一种应用于电网的移动储能系统
CN108376989A (zh) * 2018-02-13 2018-08-07 中国电力科学研究院有限公司 一种基于多智能体的电池储能电站分区控制方法及系统
WO2019221361A1 (fr) * 2018-05-14 2019-11-21 엘에스산전 주식회사 Système de gestion d'énergie
CN112531828A (zh) * 2020-11-26 2021-03-19 许继集团有限公司 一种电化学储能电站bms协同控制系统及方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115566709A (zh) * 2022-09-13 2023-01-03 中国电力科学研究院有限公司 一种储能变流器单机能量就地控制方法及装置
CN115566709B (zh) * 2022-09-13 2024-05-03 中国电力科学研究院有限公司 一种储能变流器单机能量就地控制方法及装置
CN116027206A (zh) * 2023-03-29 2023-04-28 安徽中科中涣智能装备股份有限公司 基于站级储能的多元感知分级预警智能监测系统
CN117353598A (zh) * 2023-12-06 2024-01-05 上海百竹成航新能源有限责任公司 一种储能变流器及储能系统
CN117353598B (zh) * 2023-12-06 2024-02-27 上海百竹成航新能源有限责任公司 一种储能变流器及储能系统

Also Published As

Publication number Publication date
CN112531828B (zh) 2023-02-10
CN112531828A (zh) 2021-03-19

Similar Documents

Publication Publication Date Title
WO2022110983A1 (fr) Système et procédé de commande coopérative de bms pour centrale électrique de stockage d'énergie électrochimique
KR101553451B1 (ko) 에너지 저장 시스템에서 전력 분배 방법 및 장치
CN110707804A (zh) 一种具有在线测试功能的储能备电装置及测试方法
CN110739741B (zh) 高压动力电池在通讯基站中的低压直流耦合管理系统
CN114069676B (zh) 一种基于soc均分的电池储能电站agc控制方法
WO2013133592A1 (fr) Système et procédé de commande de fréquence
CN111546942A (zh) 高压动力电池在通讯基站中的低压直流充放电源管理系统
CN114336694B (zh) 一种混合储能电站能量优化控制方法
JP2021506207A (ja) Ｂｍｓ間の通信システム及び方法
CN107579530B (zh) 一种电网的低频减载方法及低频减载控制系统
CN113541177B (zh) 电网侧电化学储能单元及电站agc控制方法
CN111175667A (zh) 电池测试系统
CN114977275A (zh) 一种智能化的储能功率变换器
CN112803483A (zh) 基于梯次利用的储充一体化电力系统的控制方法及装置
CN112886623A (zh) 一种储能变流器vsg模式能量管理协调控制方法和系统
CN116961060A (zh) 一种簇控分布式储能协调控制系统
Smend et al. A Smart Grid Solution Integrating Distributed Generation and Internet of Things Sensors for Demand Side Management and Fault Identification: Case Study
CN210898547U (zh) 电动汽车退役电池母线耦合双向充放电通讯基站电源设备
CN111812401B (zh) 一种车载动力电池大功率直流电能计量方法及系统
Wang et al. Energy management of battery energy storage station considering system operation efficiency
CN103050993A (zh) 智能微网调度实时修正方法及其系统
CN211617481U (zh) 高压动力电池在通讯基站中的低压直流充放电源管理设备
CN108321447A (zh) 基于荷电状态均衡逼近算法的多电池调度方法及系统
CN114089203B (zh) 一种电化学储能系统自动标定及soc估算方法
CN116072998B (zh) 储能系统的通信方法、装置、系统、设备、介质和产品

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21896487

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21896487

Country of ref document: EP

Kind code of ref document: A1