Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Base/Gate Drive Suppression Methods of NPC Inverters

NPC 인버터의 베이스/게이트 구동 억제 방법

  • Yoon, Ji-Taek (Dept. of Electrical Eng., Seoul National University) ;
  • Park, In-Gyu (Dept. of Control and Instrumentation Eng., Won Kwang University) ;
  • Park, Jong-Geun (Dept. of Electrical Eng., Seoul National University)
  • Published : 1995.11.18
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Abstract

This paper proposes two base/gate drive suppression methods of NPC inverters. The first is the output current polarity detection type, which can be regarded as an extension of Joshi and Bose's method for ordinary inverters. But this method has difficulties in implementation. The second is the output voltage polarity detection type, which is easier to implement than the former. The base/gate drive suppression methods have the merit that it does not have the dead time problem, reduces the power loss of the driving circuit, and others.

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