The Study on Parallel operation of IGBT for the Medium SE the Large capacity Inverter

$\cdot$ 대용량 인버터용 IGBT 병렬 운전 연구

  • Park G.T. (Electro-Mechanical Research Institute, Hyundai Heavy Industries Co., Ltd.) ;
  • Yoon J.H. (Electro-Mechanical Research Institute, Hyundai Heavy Industries Co., Ltd.) ;
  • Jung M.K. (Electro-Mechanical Research Institute, Hyundai Heavy Industries Co., Ltd.) ;
  • Kim D.S. (Electro-Mechanical Research Institute, Hyundai Heavy Industries Co., Ltd.)
  • 박건태 (현대중공업 기술개발본부 기계전기연구소) ;
  • 윤재학 (현대중공업 기술개발본부 기계전기연구소) ;
  • 정명길 (현대중공업 기술개발본부 기계전기연구소) ;
  • 김두식 (현대중공업 기술개발본부 기계전기연구소)
  • Published : 2003.07.01

Abstract

IGBTS are widely used for the industrial inverters in the mid power range at low voltage (440V$\~$660V) application. Advantageous features of the device are simple gate drive and high speed switching capability. Due to these advantages the application of IGBTS is enlarging into the high power application. However, to increase the power handling capacity at lower input voltage level, the current rating in each bridge arm must be enlarged. Therefore the parallel operation of IGBT devices is essentially needed. This paper describes the feasible parallel structures of the power circuit for the mid & the high power inverters and introduces the important design condition for the parallel operation of IGBT devices. To verify feasibility of the IGBT parallel operation, the feature of several IGBT devices (EUPEC, SEMIKRON's IGBT) are investigated and the power stacks are implemented and tested with these devices. The experimental results show the good characteristics for the parallel operation of IGBTS.

Keywords