Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Feasible Power Loss Analysis and Estimation of Auxiliary Resonant DC Link Assisted Soft-Switching Inverter with New Zero Vector Generation Method

  • Manabu Kurokawa (The Graduate School of Science and Engineering, Yamaguchi University) ;
  • Claudio Y. Inaba (The Graduate School of Science and Engineering, Yamaguchi University) ;
  • M. Rukonuzzaman (The Graduate School of Science and Engineering, Yamaguchi University) ;
  • Eiji Hiraki (The Graduate School of Science and Engineering, Yamaguchi University) ;
  • Yoshihiro Konishi (The Graduate School of Science and Engineering, Yamaguchi University) ;
  • Mutsuo Nakaoka (The Graduate School of Science and Engineering, Yamaguchi University)
  • Published : 2002.04.01
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Abstract

The purpose of this paper is to improve power conversion efficiency of three-phase soft-switching voltage-source inverter with an auxiliary resonant dc link (ARDCL) snubber circuit. Firstly, the operation principle of ARDCL snubber circuit is described. Secondly, this paper proposes an effictive generation method of zero voltage vector for three-phase voltage-source soft-switching inverter in power losses in which power losses in the ARDCL snubber circuit can be reduced. In particular, zero voltage holding interval in the inverter DC busline can be controlled due to the new generation scheme of zero voltage vector. Thirdly, a simulator for power loss analysis for power loss characteristics based on actual system, is developed. the validity of developed. The validity of developed simulator of proved with experimental results. Finally, power efficency of three-phase inverter is estimated according to high carrier frequency by using the simulatior.

Keywords

References

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