Health State Equalization Control Strategy for Multi-battery Clusters in Energy Storage Systems
To address the issue of health state equalization among multiple battery clusters in energy storage systems, this paper designs a multi-battery cluster health state equalization control strategy for the energy storage system. This strategy sets the minimum grid-connected power limit for the storage...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | zho |
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State Grid Energy Research Institute
2024-06-01
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| Series: | Zhongguo dianli |
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| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202401124 |
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| author | Hao PENG Zhengjing LUO Xiangyang XIA Gang ZENG Yujian OU Guiquan CHEN Jijun WANG Lihong LIU |
| author_facet | Hao PENG Zhengjing LUO Xiangyang XIA Gang ZENG Yujian OU Guiquan CHEN Jijun WANG Lihong LIU |
| author_sort | Hao PENG |
| collection | DOAJ |
| description | To address the issue of health state equalization among multiple battery clusters in energy storage systems, this paper designs a multi-battery cluster health state equalization control strategy for the energy storage system. This strategy sets the minimum grid-connected power limit for the storage converter according to the change rule of battery life and the grid connection requirements and determines the number of storage converter units involved in the operation of the system based on this limit. Furthermore, the hierarchical analysis method is combined to evaluate the health state of the various clusters of batteries involved in the operation and quantify the value to get the weight coefficients and corresponding power sizes of the storage converter to assume the grid-connected power command. The number of participating energy storage converters and the transmitted power are adjusted to ensure that the power of each energy storage converter does not exceed the limit. Compared with the equalization control strategy, the proposed control strategy can effectively equalize the health state of each battery cluster, extending the overall service life of the energy storage power plant by 40.6% and effectively improving the safety and economy of the energy storage power plant. |
| format | Article |
| id | doaj-art-bb5038ddbde241bebf302c17d8e5d47a |
| institution | DOAJ |
| issn | 1004-9649 |
| language | zho |
| publishDate | 2024-06-01 |
| publisher | State Grid Energy Research Institute |
| record_format | Article |
| series | Zhongguo dianli |
| spelling | doaj-art-bb5038ddbde241bebf302c17d8e5d47a2025-08-20T02:47:34ZzhoState Grid Energy Research InstituteZhongguo dianli1004-96492024-06-01576455210.11930/j.issn.1004-9649.202401124zgdl-57-6-penghaoHealth State Equalization Control Strategy for Multi-battery Clusters in Energy Storage SystemsHao PENG0Zhengjing LUO1Xiangyang XIA2Gang ZENG3Yujian OU4Guiquan CHEN5Jijun WANG6Lihong LIU7Hunan Economy Institute Electric Power Design Co., Ltd., Changsha 410007, ChinaHunan Economy Institute Electric Power Design Co., Ltd., Changsha 410007, ChinaSchool of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha 410114, ChinaHunan Economy Institute Electric Power Design Co., Ltd., Changsha 410007, ChinaHunan Economy Institute Electric Power Design Co., Ltd., Changsha 410007, ChinaSchool of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha 410114, ChinaHunan Economy Institute Electric Power Design Co., Ltd., Changsha 410007, ChinaHunan Economy Institute Electric Power Design Co., Ltd., Changsha 410007, ChinaTo address the issue of health state equalization among multiple battery clusters in energy storage systems, this paper designs a multi-battery cluster health state equalization control strategy for the energy storage system. This strategy sets the minimum grid-connected power limit for the storage converter according to the change rule of battery life and the grid connection requirements and determines the number of storage converter units involved in the operation of the system based on this limit. Furthermore, the hierarchical analysis method is combined to evaluate the health state of the various clusters of batteries involved in the operation and quantify the value to get the weight coefficients and corresponding power sizes of the storage converter to assume the grid-connected power command. The number of participating energy storage converters and the transmitted power are adjusted to ensure that the power of each energy storage converter does not exceed the limit. Compared with the equalization control strategy, the proposed control strategy can effectively equalize the health state of each battery cluster, extending the overall service life of the energy storage power plant by 40.6% and effectively improving the safety and economy of the energy storage power plant.https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202401124energy storage systembattery life change ruleenergy storage converterhierarchical analysis methodsafetyeconomy |
| spellingShingle | Hao PENG Zhengjing LUO Xiangyang XIA Gang ZENG Yujian OU Guiquan CHEN Jijun WANG Lihong LIU Health State Equalization Control Strategy for Multi-battery Clusters in Energy Storage Systems Zhongguo dianli energy storage system battery life change rule energy storage converter hierarchical analysis method safety economy |
| title | Health State Equalization Control Strategy for Multi-battery Clusters in Energy Storage Systems |
| title_full | Health State Equalization Control Strategy for Multi-battery Clusters in Energy Storage Systems |
| title_fullStr | Health State Equalization Control Strategy for Multi-battery Clusters in Energy Storage Systems |
| title_full_unstemmed | Health State Equalization Control Strategy for Multi-battery Clusters in Energy Storage Systems |
| title_short | Health State Equalization Control Strategy for Multi-battery Clusters in Energy Storage Systems |
| title_sort | health state equalization control strategy for multi battery clusters in energy storage systems |
| topic | energy storage system battery life change rule energy storage converter hierarchical analysis method safety economy |
| url | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202401124 |
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