A novel three-phase inverter for common-mode voltage reduction in electric drives

Luca Concari, Davide Barater, Carlo Concari, Giampaolo Buticchi

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

4 Citations (Scopus)

Abstract

This paper presents an active solution for the elimination of the leakage current, in a three-phase PWM inverter drive. With respect to a traditional three-phase bridge, the proposed solution reduces the common-mode voltage variations, both in amplitude and frequency. A novel architecture for the inverter is presented. Between the DC source and the traditional three-phase bridge, two active DC-decoupling devices and a voltage-clamping network have been added. A dedicated control strategy was developed adopting a modified Space Vector PWM modulation, oriented to the reduction of the common-mode voltage variations in the proposed topology. Simulations showing the good performance of the solution are presented. A preliminary prototype was developed and experimental results are presented.

Original languageEnglish
Title of host publication2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2980-2987
Number of pages8
ISBN (Electronic)9781467371506
DOIs
Publication statusPublished - 27 Oct 2015
Externally publishedYes
Event7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Montreal, Canada
Duration: 20 Sep 201524 Sep 2015

Publication series

Name2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

Conference

Conference7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
Country/TerritoryCanada
CityMontreal
Period20/09/1524/09/15

Keywords

  • common-mode voltage
  • drive
  • H8
  • inverter
  • leakage current
  • PWM
  • space vector
  • Three-phase

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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