The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
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Design of a New Adaptive Sliding Mode Observer for Sensorless Induction Motor Drive

센서리스 유도전동기를 위한 새로운 슬라이딩 모드 관측기의 설계

  • 김상민 (전북대 메카트로닉스연구센터) ;
  • 한우용 (전주공업대 디지털전기정보학과) ;
  • 김성중 (전북대 공대 전자정보공학부)
  • Published : 2003.10.01
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Abstract

This paper proposes a new speed and flux estimation method which has the robustness against the variation of the electrical parameters of the motor and the superiority in the dynamic characteristics. In the proposed method, the stator currents and the rotor fluxes are observed on the stationary reference frame using the sliding mode concept. And the rotor speed is estimated using the current estimation errors and the observed rotor fluxes based on the Lyapunov stability theory. Also a design method of the observer gain is proposed to minimize the effect of the speed estimation error on the rotor flux observation. The experimental results are shown to verify that the proposed method shows the excellent performances under the variations of motor resistance and inductance.

Keywords

References

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