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Research on Technical Trends of IGBT Gate Driver Unit for Railway Car

철도차량용 IGBT Gate Driver Unit 기술 동향 분석 연구

  • Cho, In-Ho (Propulsion System Research Team, Korea Railroad Research Institute,) ;
  • Lee, Jae-Bum (Propulsion System Research Team, Korea Railroad Research Institute,) ;
  • Jung, Shin-Myung (Propulsion System Research Team, Korea Railroad Research Institute,) ;
  • Lee, Byoung-Hee (Department of Electronics and Control Engineering, Hanbat National University)
  • Received : 2017.04.18
  • Accepted : 2017.05.08
  • Published : 2017.06.30

Abstract

Power supply for railway cars can be divided into propulsion system power supply and auxiliary power units (APU). The propulsion system power supply is for propulsion of railway cars, and regenerative braking; the APU provides power for the air compressor, lighting, car control and other auxiliary parts. According to high voltage and high current specifications, generally, an insulated-gate bipolar transistor (IGBT) is adopted for the switching component. For appropriate switching operation, a gate driver unit (GDU) is essentially required. In this paper, the technical trends of GDU for railway cars are analyzed and a design consideration for IGBT GDU is described.

철도차량용 전원창치는 추진제어용 전원장치와 보조전원장치로 구분된다. 추진제어용 전원장치는 철도차량의 추진 및 회생제동 등의 동작을 위한 것이며, 보조전원장치는 추진제어용 전원을 제외한 공기압축기, 조명기기, 차량제어전원 등의 보조전원에 사용되는 것이다. 각 전원장치는 고전압, 고전류 사양 특성에 따라 일반적으로 insulated-gate bipolar transistor (IGBT)를 스위칭 소자로 사용하고 있다. 스위칭 소자를 사용하기 위해서는 적절한 스위칭 동작을 구현하기 위한 구동회로(Gate Driver Unit, GDU)가 필수적이다. 본 논문에서는 철도차량에 적용되고 있는 IGBT용 GDU에 적용되고 있는 기술 동향을 분석하고 철도차량용 IGBT GDU 설계 시 고려사항에 대해 알아보고자 한다.

Keywords

References

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