The Characteristics of New Current Source GTO Inverter with Double Recovery Path of Commutation Energy

전류(轉流)에너지 2중 궤환방식 새로운 전류형 GTO 인버터의 특성

  • Choi, Sang-Won (Dept. of Electrical Engineering. Chungbuk National University) ;
  • Kim, Jin-Pyo (Dept. of Electrical Engineering. Chungbuk National University) ;
  • Lee, Jong-Ha (Dept. of Electrical Engineering. Chungbuk National University)
  • 최상원 (충북대학교 전기공학과) ;
  • 김진표 (충북대학교 전기공학과) ;
  • 이종하 (충북대학교 전기공학과)
  • Published : 1997.11.29

Abstract

In order to develop the three phase GTO CSI with double recovery path of commutation energy by passive devices (LCD), we studied the clamping circuit to protect switching device and energy recovery circuit to recover absorbed energy of capacitor and DC link inductor. In this paper, we investigated how DC input power is increased or decreased according to energy recovery path with or not in the three phase GTO current source inverter. We used a induction motor as the load of inverter, and controlled a induction motor with V/F constant control. Experimental results show that dissipated DC power is decreased and capacitor voltage Vc is effectively suppressed by double recovery path.

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