Modulation strategy for highly reliable cascade H-Bridge inverter based on discontinuous PWM

Youngjong Ko, Markus Andresen, Giampaolo Buticchi, June Seok Lee, Marco Liserre

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

8 Citations (Scopus)

Abstract

The Cascaded H-Bridge (CHB) topology is widely employed in high power and high voltage applications due to advantages of the low dv/dt, the low EMI noise, and the low filter inductance. An issue of this modular system is the possible unequal thermal stress of the power semiconductors in the cells, which is affecting the reliability and leads to maintenance costs and down-times. In this paper, the seven-level CHB topology is considered and the modulation strategy based on the Discontinuous PWM (DPWM) is proposed to improve the reliability by reducing the switching losses of a cell experiencing premature wear-out.

Original languageEnglish
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3241-3246
Number of pages6
ISBN (Electronic)9781509053667
DOIs
Publication statusPublished - 17 May 2017
Externally publishedYes
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

Keywords

  • Cascaded H-bridge
  • Discontinuous PWM
  • Modulation strategy
  • Multilevel converter
  • Reliability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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