A Multi-Active-Half-Bridge Converter based Soft-switched Fast Voltage Equalizer for Multi-cell to Multi-cell Charge Transfer

Dam, SK and John, V (2019) A Multi-Active-Half-Bridge Converter based Soft-switched Fast Voltage Equalizer for Multi-cell to Multi-cell Charge Transfer. In: 2019 IEEE Transportation Electrification Conference (ITEC-India), 17-19 Dec. 2019, Bengaluru, India.

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Abstract

Batteries are connected in series to meet the voltage requirement in many applications. A voltage equalizer circuit is necessary to ensure that none of the batteries is over-charged or over-discharged. A fast soft-switched multi-cell to multi-cell voltage equalizer topology is proposed in this work. This topology can transfer charge from multiple over-charged batteries to multiple under-charged batteries simultaneously to achieve fast voltage equalization. The proposed topology and modulation ensure zero voltage switching under all battery conditions. The circuit operation and soft-switching are analyzed and experimentally verified with a four battery voltage equalizer prototype which validates a high conversion efficiency and performance. © 2019 IEEE.

Item Type:	Conference Paper
Publication:	2019 IEEE Transportation Electrification Conference, ITEC-India 2019
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	cited By 0; Conference of 2019 IEEE Transportation Electrification Conference, ITEC-India 2019 ; Conference Date: 17 December 2019 Through 19 December 2019; Conference Code:159576
Keywords:	Charge transfer; Electric utilities; Power converters; Secondary batteries; Topology; Zero voltage switching, Battery condition; Battery voltages; Circuit operation; Half-bridge converters; High conversion efficiency; Multicell; Soft-switched; Voltage requirement, Equalizers
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	28 Oct 2020 07:29
Last Modified:	28 Oct 2020 07:29
URI:	http://eprints.iisc.ac.in/id/eprint/65659

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