A new evaluation circuit with a low-voltage inverter intended for capacitors used in a high-power three-phase inverter

Kazunori Hasegawa, Ichiro Omura, Shin Ichi Nishizawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

DC-link capacitors in power electronic converters are a major constraint on improvement of power density as well as reliability. Evaluation of the dc-link capacitors in terms of power loss, ageing, and failure rate will play an important role in design stages of the next-generation power converters. This paper proposes a new evaluation circuit for dc-link capacitors used in a high-power three-phase inverter, which is intended for testing power loss, failure rate, ageing, and so on. The evaluation circuit produces a practical ripple current waveform and a dc bias voltage into a capacitor under test, in which the ripple current is equivalent to that generated by the three-phase inverter on the dc link. The evaluation circuit employs a full-scale current-rating and downscaled voltage-rating inverter for producing the ripple current, so that the power rating of the evaluation circuit is much smaller than that of a full-scale current rating and full-scale voltage rating inverter.

Original languageEnglish
Title of host publication2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3032-3037
Number of pages6
ISBN (Electronic)9781467383936
DOIs
Publication statusPublished - May 10 2016
Event31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016 - Long Beach, United States
Duration: Mar 20 2016Mar 24 2016

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2016-May

Other

Other31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016
CountryUnited States
CityLong Beach
Period3/20/163/24/16

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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