Sensorless Vector Control for PMSM Using Instantaneous Reactive Power

무효전력을 이용한 영구자석 동기전동기의 위치 및 속도 센서리스 제어

  • 진창언 (인하대학교 전자.전기.컴퓨터공학부) ;
  • 한윤석 (인하대학교 전자.전기.컴퓨터공학부) ;
  • 신재화 (인천전문대) ;
  • 김영석 (인하대학교 전자.전기.컴퓨터공학부)
  • Published : 2000.07.17

Abstract

This paper describes a new approach to estimating permanent magnet synchronous motor(PMSM) speed and position from measured terminal voltages and currents for speed-sensorless vector control. The proposed system is based on observing the instantaneous reactive power of the motor. The described technique is very simple and robust to variations of motor parameters. The new approach is not dependent upon the value of the stator resistance. Also, MRAS schemes are chosen for determining the adaptive law for the speed and the position estimator. The effectiveness is verified by simulation.

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