A cascaded multilevel converter based on SOC closed loop tracking

He, Y; Wan, Z; Liu, X; Zheng, X; Zeng, G; Zhang, J

A cascaded multilevel converter based on SOC closed loop tracking

He, Y Wan, Z Liu, X Zheng, X Zeng, G Zhang, J

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Publication Type:: Journal Article
Citation:: Progress In Electromagnetics Research C, 2018, 88 pp. 103 - 115
Issue Date:: 2018-01-01

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Field	Value	Language
dc.contributor.author	He, Y	en_US
dc.contributor.author	Wan, Z	en_US
dc.contributor.author	Liu, X	en_US
dc.contributor.author	Zheng, X	en_US
dc.contributor.author	Zeng, G	en_US
dc.contributor.author	Zhang, J https://orcid.org/0000-0003-2616-6722	en_US
dc.date.issued	2018-01-01	en_US
dc.identifier.citation	Progress In Electromagnetics Research C, 2018, 88 pp. 103 - 115	en_US
dc.identifier.issn	1937-8718	en_US
dc.identifier.uri	http://hdl.handle.net/10453/129985
dc.description.abstract	© 2018, Electromagnetics Academy. All rights reserved. This paper proposes a cascaded multilevel converter to reduce the number of IGBT switches for the purpose of improving system stability and decreasing switching losses. This converter can eliminate second-order ripple caused by energy exchange between grid and batteries, and thus extend battery life. This cascaded connection between the equivalent buck/boost circuit and the half-bridge inverter is also able to reduce the number of switch tubes. A control strategy based on state of charge (SOC) closed-loop tracking is designed to implement t0068e errorless follow-up control of average SOC values for electric vehicle batteries. The equivalent circuit under different working modes of the topology is analyzed, and the effectiveness of the control strategy is verified. Simulated and experimental results show that this converter can effectively achieve grid connection requirements and balance the battery units to meet practical needs.	en_US
dc.relation.ispartof	Progress In Electromagnetics Research C	en_US
dc.relation.isbasedon	10.2528/PIERC18090501	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	A cascaded multilevel converter based on SOC closed loop tracking	en_US
dc.type	Journal Article
utslib.citation.volume	88	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	1005 Communications Technologies	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	88	en_US

Abstract:

© 2018, Electromagnetics Academy. All rights reserved. This paper proposes a cascaded multilevel converter to reduce the number of IGBT switches for the purpose of improving system stability and decreasing switching losses. This converter can eliminate second-order ripple caused by energy exchange between grid and batteries, and thus extend battery life. This cascaded connection between the equivalent buck/boost circuit and the half-bridge inverter is also able to reduce the number of switch tubes. A control strategy based on state of charge (SOC) closed-loop tracking is designed to implement t0068e errorless follow-up control of average SOC values for electric vehicle batteries. The equivalent circuit under different working modes of the topology is analyzed, and the effectiveness of the control strategy is verified. Simulated and experimental results show that this converter can effectively achieve grid connection requirements and balance the battery units to meet practical needs.

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http://hdl.handle.net/10453/129985