Voltage self-balance method for series connected IGBTs by using clamping diodes

Guanda Lu, Congzhe Gao, Xingyu Li

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

14 Citations (Scopus)

Abstract

Series connected IGBTs provide a useful method to improve the voltage level, and which is a very important approach to achieve high-voltage power converters. However the imbalance of collector-emitter voltages across IGBTs is a key issue that must be addressed. This paper proposed a novel type of series connected IGBT circuit with voltage self-balance by using clamping diode and snubber capacitor, and an auxiliary circuit for energy feedback is designed. The operation principles and the various working states are analyzed in this paper. Furthermore the experiment prototype of three-phase inverter based on this topology is built. The experiment results validate the voltage self-balance performance of the series connected IGBTs.

Original languageEnglish
Title of host publicationProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5000-5005
Number of pages6
ISBN (Electronic)9781538611272
DOIs
Publication statusPublished - 15 Dec 2017
Event43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, China
Duration: 29 Oct 20171 Nov 2017

Publication series

NameProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
Volume2017-January

Conference

Conference43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Country/TerritoryChina
CityBeijing
Period29/10/171/11/17

Keywords

  • clamping diode
  • series connected IGBTs
  • voltage balance

Fingerprint

Dive into the research topics of 'Voltage self-balance method for series connected IGBTs by using clamping diodes'. Together they form a unique fingerprint.

Cite this