Parallel balancing converter for serially connected batteries string

Or Kirshenboim, Yoav Dickstein, Alex Shvarchov, Mor Mordechai Peretz, Ilya Zeltser

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper introduces a new isolated converter topology for parallel balancing of serially connected batteries string. The system uses a low voltage bus capacitor as an energy buffer that is common for all the cells and balancing of the string is achieved by voltage equalizing of the cells. Each converter is in charge of balancing three adjacent cells, reducing the components count of the system. The converter operates in DCM and the current that flows between the cells and the bus is a function of their voltage difference. As a result, the quiescent power loss is minimal since no energy circulates in the system when the cells are balanced. Furthermore, no voltage or current sensors are required, making the implementation of the system simple and cost-effective. Theoretical analysis as well as design guidelines for the construction of the new topology are detailed and validated by experimental results that demonstrate the system's balancing capability.

Original languageAmerican English
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Pages2091-2096
Number of pages6
ISBN (Electronic)9781509053667
DOIs
StatePublished - 17 May 2017
Event32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States
Duration: 26 Mar 201730 Mar 2017

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Conference

Conference32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Country/TerritoryUnited States
CityTampa
Period26/03/1730/03/17

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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