Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Development of 200kW class electric vehicle traction motor driver based on SiC MOSFET

SiC MOSFET기반 200kW급 전기차 구동용 모터드라이버 개발

  • Yeonwoo, Kim (Korea Institute of Machinery & Materials) ;
  • Sehwan, Kim (Korea Institute of Machinery & Materials) ;
  • Minjae, Kim (Korea Institute of Machinery & Materials) ;
  • Uihyung, Yi (Korea Institute of Machinery & Materials) ;
  • Sungwon, Lee (Korea Institute of Machinery & Materials)
  • Received : 2022.12.07
  • Accepted : 2022.12.20
  • Published : 2022.12.31
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Abstract

In this paper, A 200kW traction motor driver that covers most of the traction motor specification of commercial electric vehicles (EV) is developed. In order to achieve high efficiency and high power density, a next-generation power semiconductors (Silicon carbide, SiC) are applied instead of power semiconductor(IGBT), which is Si based. Through hardware analysis for optimal use of SiC, expected efficiency and heat dissipation characteristics are obtained. A vector control algorithm for an IPMSM (Interior permanent magnet synchronous motor), which is mostly used in EV(Electric vehicle) traction motor, is implemented using DSP (Digital signal processor). In this paper, a prototype traction motor driver based SiC for EV is designed and manufactured, and its performance is verified through experiments.

본 논문에서는 현재 출시되어 있는 전기차의 구동모터 사양을 대부분 포괄하는 200kW급 구동용 모터드라이버를 개발하였다. 고효율ㆍ고전력밀도를 달성하기 위해 기존 전력반도체(Insulated-gate bipolar transistor, IGBT)대신에 차세대 전력반도체(Silicon carbide, SiC)를 적용하였으며 SiC를 최적사용하기 위해 하드웨어에 대한 분석을 통해, 예상되는 효율 및 방열특성을 구하여 최적 설계를 하였다. 전기차 구동모터에 대부분 활용되는 매입형 영구자석 동기모터(Interior permanent-magnet synchronous machine, IPMSM)를 위한 벡터 제어 알고리즘을 DSP를 활용하여 구현하였다. 본 논문에서는 SiC기반 전기차 구동용 모터드라이버 시작품을 설계ㆍ제작하였으며 실험을 통해 성능을 검증하였다.

Keywords

Acknowledgement

This research was supported by a grant of the Basic Research Program funded by the Korea Institute of Machinery and Materials(grant number: NK240A).

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