Mathematical Modeling and Performance Evaluation of Switched-Capacitor-Based Battery Equalization Systems

The battery storage system (BSS) is one of the key components in many modern power applications, such as in renewable energy systems and electric vehicles. However, charge imbalance among batteries is very common in BSSs, which may impair the power efficiency, reliability, and safety. Hence, various...

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Autores principales:	Kun-Che Ho, Yi-Hua Liu, Song-Pei Ye, Guan-Jhu Chen, Yu-Shan Cheng
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	battery storage system (BSS) switched capacitor battery equalizer Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/4cf5b1a4912649819511048b5bbb6644
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spelling	oai:doaj.org-article:4cf5b1a4912649819511048b5bbb66442021-11-11T15:38:41ZMathematical Modeling and Performance Evaluation of Switched-Capacitor-Based Battery Equalization Systems10.3390/electronics102126292079-9292https://doaj.org/article/4cf5b1a4912649819511048b5bbb66442021-10-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/21/2629https://doaj.org/toc/2079-9292The battery storage system (BSS) is one of the key components in many modern power applications, such as in renewable energy systems and electric vehicles. However, charge imbalance among batteries is very common in BSSs, which may impair the power efficiency, reliability, and safety. Hence, various battery equalization methods have been proposed in the literature. Among these techniques, switched-capacitor (SC)-based battery equalizers (BEs) have attracted much attention due to their low cost, small size, and controllability. In this paper, seven types of SC-based BEs are studied, including conventional, double-tiered, modularized, chain structure types I and II, series-parallel, and single SC-based BEs. Mathematical models that describe the charge–discharge behaviors are first derived. Next, a statistical analysis based on MATLAB simulation is carried out to compare the performance of these seven BEs. Finally, a summary of the circuit design complexity, balancing speed, and practical implementation options for these seven topologies is provided.Kun-Che HoYi-Hua LiuSong-Pei YeGuan-Jhu ChenYu-Shan ChengMDPI AGarticlebattery storage system (BSS)switched capacitorbattery equalizerElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2629, p 2629 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	battery storage system (BSS) switched capacitor battery equalizer Electronics TK7800-8360
spellingShingle	battery storage system (BSS) switched capacitor battery equalizer Electronics TK7800-8360 Kun-Che Ho Yi-Hua Liu Song-Pei Ye Guan-Jhu Chen Yu-Shan Cheng Mathematical Modeling and Performance Evaluation of Switched-Capacitor-Based Battery Equalization Systems
description	The battery storage system (BSS) is one of the key components in many modern power applications, such as in renewable energy systems and electric vehicles. However, charge imbalance among batteries is very common in BSSs, which may impair the power efficiency, reliability, and safety. Hence, various battery equalization methods have been proposed in the literature. Among these techniques, switched-capacitor (SC)-based battery equalizers (BEs) have attracted much attention due to their low cost, small size, and controllability. In this paper, seven types of SC-based BEs are studied, including conventional, double-tiered, modularized, chain structure types I and II, series-parallel, and single SC-based BEs. Mathematical models that describe the charge–discharge behaviors are first derived. Next, a statistical analysis based on MATLAB simulation is carried out to compare the performance of these seven BEs. Finally, a summary of the circuit design complexity, balancing speed, and practical implementation options for these seven topologies is provided.
format	article
author	Kun-Che Ho Yi-Hua Liu Song-Pei Ye Guan-Jhu Chen Yu-Shan Cheng
author_facet	Kun-Che Ho Yi-Hua Liu Song-Pei Ye Guan-Jhu Chen Yu-Shan Cheng
author_sort	Kun-Che Ho
title	Mathematical Modeling and Performance Evaluation of Switched-Capacitor-Based Battery Equalization Systems
title_short	Mathematical Modeling and Performance Evaluation of Switched-Capacitor-Based Battery Equalization Systems
title_full	Mathematical Modeling and Performance Evaluation of Switched-Capacitor-Based Battery Equalization Systems
title_fullStr	Mathematical Modeling and Performance Evaluation of Switched-Capacitor-Based Battery Equalization Systems
title_full_unstemmed	Mathematical Modeling and Performance Evaluation of Switched-Capacitor-Based Battery Equalization Systems
title_sort	mathematical modeling and performance evaluation of switched-capacitor-based battery equalization systems
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4cf5b1a4912649819511048b5bbb6644
work_keys_str_mv	AT kuncheho mathematicalmodelingandperformanceevaluationofswitchedcapacitorbasedbatteryequalizationsystems AT yihualiu mathematicalmodelingandperformanceevaluationofswitchedcapacitorbasedbatteryequalizationsystems AT songpeiye mathematicalmodelingandperformanceevaluationofswitchedcapacitorbasedbatteryequalizationsystems AT guanjhuchen mathematicalmodelingandperformanceevaluationofswitchedcapacitorbasedbatteryequalizationsystems AT yushancheng mathematicalmodelingandperformanceevaluationofswitchedcapacitorbasedbatteryequalizationsystems
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Mathematical Modeling and Performance Evaluation of Switched-Capacitor-Based Battery Equalization Systems

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