Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Loss-Minimization Nonlinear Torque Control for Electrical Vehicle Induction Motors

전기자동차용 유도전동기의 에너지 손실을 최소화하는 비선형 토크 제어기 설계

  • Jang, Jin-Su (Dept. of Elec. Elec. Con. & Inst. Eng. Hanyang Univ.) ;
  • Han, Byung-Jo (Dept. of Elec. Elec. Con. & Inst. Eng. Hanyang Univ.) ;
  • Hwang, Young-Ho (Dept. of Elec. Elec. Con. & Inst. Eng. Hanyang Univ.) ;
  • Kim, Hong-Pil (Sch. of Com. Con. Elec. Eng. Kyungil Univ.) ;
  • Yang, Hai-Won (Dept. of Elec. Elec. Con. & Inst. Eng. Hanyang Univ.)
  • 장진수 (한양대학교 전자전기제어계측공학) ;
  • 한병조 (한양대학교 전자전기제어계측공학) ;
  • 황영호 (한양대학교 전자전기제어계측공학) ;
  • 김홍필 (경일대학교 컴퓨터제어전기공학) ;
  • 양해원 (한양대학교 전자전기제어계측공학)
  • Published : 2006.07.12
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Abstract

In this paper, a loss-minimization nonlinear torque control for Electrical Vehicle(EV) induction motors is proposed. To improve the efficiency of the induction motors, it is important to find the optimal flux reference that minimize power losses. The proposed optimal flux reference is derived using a power loss function that is constructed with stator resistance losses, rotor resistance losses and core losses. And the time-varying load torque and the rotor resistance variation are considered in the power loss function. An algorithm that identifying the load torque is used. The rotor flux observer is used to obtain an accurate flux value regardless of the rotor resistance variation. Simulation results show a significant reduction in energy losses.

Keywords