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유도 전동기 구동용 다이오드 브릿지-타입 ZVT 인버터
이성룡(S. R. Lee),고성훈(S. H. Ko),권순신(S. S. Kwon),송인석(1. S. Song) 전력전자학회 1999 전력전자학술대회 논문집 Vol.1999 No.7
In this paper, the diode bridge-type ZVT(Zero-Voltage Transition) inverter is proposed. It consists of one auxiliary switch, three resonant inductors and six blocking diodes So, the advantage of the proposed topology is the reduction of the auxiliary switch. The topology of the proposed ZVT inverter is analyzed with a description of the control conditions based on the load current. Therefore, this paper two control algorithms were discussed. a variable resonant pattern control algorithm by using load current feedback and a resonant period control algorithm by using resonant inductor current feedback IS proposed in order to achieve the ZVT switching condition in full control range and the reducing current spike main switches cause by reverse recovery problem.