A flyback converter based partial power processing structure for BESS with voltage/current regulation and battery balancing functionalities

Qi, J; Dah-Chuan Lu, D

A flyback converter based partial power processing structure for BESS with voltage/current regulation and battery balancing functionalities

Qi, J Dah-Chuan Lu, D

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Publication Type:: Conference Proceeding
Citation:: INTELEC, International Telecommunications Energy Conference (Proceedings), 2017, 2017-October pp. 381 - 386
Issue Date:: 2017-12-14

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Field	Value	Language
dc.contributor.author	Qi, J	en_US
dc.contributor.author	Dah-Chuan Lu, D https://orcid.org/0000-0003-2145-0580	en_US
dc.date.issued	2017-12-14	en_US
dc.identifier.citation	INTELEC, International Telecommunications Energy Conference (Proceedings), 2017, 2017-October pp. 381 - 386	en_US
dc.identifier.isbn	9781538610183	en_US
dc.identifier.issn	0275-0473	en_US
dc.identifier.uri	http://hdl.handle.net/10453/127650
dc.description.abstract	© 2017 IEEE. This paper presents a flyback converter based partial power processing structure for battery energy storage system (BESS). It combines both of the battery balancing functionality and power stage regulation functionality into one system. The proposed BESS only have one control variable which is the common duty cycle for all the flyback converters. It is used for the voltage or current regulation. There is no active control for the battery balancing because the current sharing of individual battery is directly proportional to the battery terminal voltage in discharging mode and inversely proportional in charging mode. The unbalanced battery terminal voltages will gradually converge while system running. Beyond these, only a small portion of the total discharging/charging power is processed by the converters. The overall system efficiency can be significantly improved compared to traditional BESSs. Experimental results of a prototype with two batteries verified that the proposed BESS provides satisfied performance.	en_US
dc.relation.ispartof	INTELEC, International Telecommunications Energy Conference (Proceedings)	en_US
dc.relation.isbasedon	10.1109/INTLEC.2017.8214166	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	A flyback converter based partial power processing structure for BESS with voltage/current regulation and battery balancing functionalities	en_US
dc.type	Conference Proceeding
utslib.citation.volume	2017-October	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US
pubs.volume	2017-October	en_US

Abstract:

© 2017 IEEE. This paper presents a flyback converter based partial power processing structure for battery energy storage system (BESS). It combines both of the battery balancing functionality and power stage regulation functionality into one system. The proposed BESS only have one control variable which is the common duty cycle for all the flyback converters. It is used for the voltage or current regulation. There is no active control for the battery balancing because the current sharing of individual battery is directly proportional to the battery terminal voltage in discharging mode and inversely proportional in charging mode. The unbalanced battery terminal voltages will gradually converge while system running. Beyond these, only a small portion of the total discharging/charging power is processed by the converters. The overall system efficiency can be significantly improved compared to traditional BESSs. Experimental results of a prototype with two batteries verified that the proposed BESS provides satisfied performance.

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http://hdl.handle.net/10453/127650