A Study on the Three Phase ZCS(Zero Current Switching) Inverter using Auxiliary Circuit

보조회로를 이용한 3상 ZCS 인버터에 관한 연구

  • Published : 2003.10.30

Abstract

This paper proposes a soft-transition control strategy for a three phase ZCS(Zero Current Switching) inverter circuit. Each phase leg of inverter circuit consists of an LC resonant tank, two main switches, and one auxiliary switches. This paper presents design consideration via a study example of a three phase prototype inverter for motor drives. A simple device tester with zero current switching capability is proposed to select eligible auxiliary switches. The principle of operation, feature and design considerations are illustrated and verified through the experiment with a 2.2kW 5kHz IGBT based experimental circuit.

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