Practical design procedure of resonant snubber with current transformer and performance evaluations of a digitally controlled three phase soft switching inverter

C. Y. Inaba, Y. Hirota, Y. Konishi, E. Hiraki, M. Nakaoka

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

In this paper, a high frequency transformer-assisted auxiliary active resonant commutation snubber (HFTA-ARCS) for voltage source soft switching pulse width modulated power conversion and inversion circuits using IGBTs is presented. A three phase voltage source type soft switching inverter incorporating HFTA-ARCS circuits in its three bridge legs can reduce current rating of auxiliary active power switches and has sensorless simplified control scheme which any specified boost current management is not required for soft switching. Its operation principle and digital control scheme are described and a practical design method of circuit parameters on this HFTA-ARCS circuits is also introduced on the basis of computer simulation. Moreover, this space vector modulated soft switching inverter system with DSP-based digital control scheme is discussed on the basis of performance evaluations. The effectiveness of this inverter is proved by simulation results. The operating performances of this inverter system are compared with those of conventional three-phase hard switching inverter under practical conditions of specified parameters.

Original languageEnglish
Pages (from-to)2448-2454
Number of pages7
JournalConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
Volume4
Publication statusPublished - Jan 1 2001
Externally publishedYes
Event36th IAS Annual Meeting -Conference Record of the 2001 Industry Applications - Chicago, IL, United States
Duration: Sep 30 2001Oct 4 2001

Keywords

  • Assisted auxiliary resonant snubbers
  • DSP-based control scheme
  • High frequency transformer
  • High power applications
  • Soft switching
  • Space vector modulation
  • Three phase voltage source inverter

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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