The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
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Evaluation of Insulation Performance on Stator Windings of Inverter-Fed Induction Motor According to Impregnation Techniques

인버터 구동 유도전동기 고정자 권선의 함침기법에 따른 절연성능 평가

  • 황돈하 (한국전기연구원 전력설비진단연구그룹) ;
  • 강동식 (한국전기연구원 전력설비진단연구그룹) ;
  • 김용주 (한국전기연구원 융합기술연구단) ;
  • 이인우 ((주)효성 중공업연구소) ;
  • 구자윤 (한양대 공대 전자컴퓨터공학부) ;
  • 김동희 (영남대 공대 전기공학과) ;
  • 이광식 (영남대 공대 전기공학과)
  • Published : 2006.07.01
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Abstract

The low-voltage induction motors have been widely driven by IGBT PWM inverters, ever since it was used to apply variable speed drives. Recently, the insulation failures of the stator windings become critical problems due to the high ratio of dv/dt in IGBT PWM inverters. In this paper, the detailed insulation tests on the IGBT PWM inverter fed induction motor are carried out. Five different types of insulation techniques are used to ti induction motors. The change of the insulation characteristics such as partial discharge, AC current, capacitance, and dissipation factor are compared. respectively In addition, insulation breakdown tests using the high voltage pulse are performed, and corresponding breakdown voltages are analyzed.

Keywords

References

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