Inverter characterization for intermittent and peak duty motor drives

Veysel T. Buyukdegirmenci, Philip T. Krein

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

Abstract

This paper investigates inverter time ratings and short-time electrical and thermal limitations in peak duty intermittent-load motor drives. An inverter electro-thermal model is developed and validated to complement prior motor thermal models. The inverter model is used to assess short-time capabilities of IGBT inverters. The results show that the inverter is the thermal bottleneck for short-term ratings in a drive system. A large thermal mass heat sink is shown to increase time ratings. The limit is the semiconductor heat capacity, which is invariant for any duration above a fraction of a second. Analyses are extended to inverter characterization for repetitive duty. For aperiodic duty, an energy-based time rating estimation process is discussed and case studies based on automotive duty and fault duty are presented.

Original languageEnglish (US)
Title of host publicationAPEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages791-798
Number of pages8
ISBN (Print)9781479923250
DOIs
StatePublished - Jan 1 2014
Event29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014 - Fort Worth, TX, United States
Duration: Mar 16 2014Mar 20 2014

Publication series

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

Other

Other29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
CountryUnited States
CityFort Worth, TX
Period3/16/143/20/14

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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