Limits of Uneven Battery Power in Modular Multilevel Converter-based Battery Energy Storage Systems

Yao Pan; Xiaofeng Sun; Wei Zhao; Xin Li; Yao Cai

doi:10.17775/CSEEJPES.2021.01510

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Limits of Uneven Battery Power in Modular Multilevel Converter-based Battery Energy Storage Systems

Regular Papers | 更新时间：2026-10-15

- Limits of Uneven Battery Power in Modular Multilevel Converter-based Battery Energy Storage Systems
- Limits of Uneven Battery Power in Modular Multilevel Converter-based Battery Energy Storage Systems
- 中国电机工程学会电力与能源系统学报(英文) 2024年10卷第2期页码：686-695
- 作者机构：
  
  Institute of Electrical Engineering, Yanshan University,Qinhuangdao,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2021.01510
  中图分类号：
- 纸质出版：2024-03-01
- 稿件说明：
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Yao Pan, Xiaofeng Sun, Wei Zhao, 等. Limits of Uneven Battery Power in Modular Multilevel Converter-based Battery Energy Storage Systems[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(2):686-695.

Yao Pan, Xiaofeng Sun, Wei Zhao, et al. Limits of Uneven Battery Power in Modular Multilevel Converter-based Battery Energy Storage Systems[J]. CSEE Journal of Power and Energy Systems, 2024, 10(2): 686-695.
Yao Pan, Xiaofeng Sun, Wei Zhao, 等. Limits of Uneven Battery Power in Modular Multilevel Converter-based Battery Energy Storage Systems[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(2):686-695. DOI： 10.17775/CSEEJPES.2021.01510.

Yao Pan, Xiaofeng Sun, Wei Zhao, et al. Limits of Uneven Battery Power in Modular Multilevel Converter-based Battery Energy Storage Systems[J]. CSEE Journal of Power and Energy Systems, 2024, 10(2): 686-695. DOI： 10.17775/CSEEJPES.2021.01510.

摘要

Abstract

For modular multilevel converter-based battery energy storage systems (MMC-BESS)

uneven power among batteries of SMs will be deduced by battery aging

battery fault

etc.

which will degrade performance and even lead to system failure. For maintaining the balance of capacitor voltage

this paper analyzes the limits of the uneven power of batteries

which are presented as the current limits in this paper. According to analysis

an analytical method is proposed that only the dc and fundamental frequency components of the arm current are used to calculate current limits. With the current limits it is able to evaluate the reasonability of power distribution among batteries. Meanwhile

increase of fundamental frequency component will enhance the current limits

and the dc component determines the size relationship between the absolute values of the upper and lower current limits. Finally

simulation model and experiment prototype are built for verifying the theoretical analysis and current limits calculation method

and satisfactory results are provided.

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Keywords

references

8. REN21. ( 2019, Jun. 18 ). Renewables 2018: global status report (GRS) . [Online ] . Available: http://www.ren21.net/gsr-2018/.

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