신경망 외란관측기와 파라미터 보상기를 이용한 PMSM의 정밀 위치제어

Precision Position Control of PMSM Using Neural Network Disturbance observer and Parameter compensator

  • 고종선 (단국대학 전기전자컴퓨터공학과) ;
  • 진달복 (원광대학 전기전자 및 정보통신공학과) ;
  • 이태훈 (슈나이더일렉트릭코리아(주) 기술영업부)
  • 발행 : 2004.03.01

초록

This paper presents neural load torque observer that is used to deadbeat load torque observer and gain compensation by parameter estimator As a result, the response of the PMSM(permanent magnet synchronous motor) follows that nominal plant. The load torque compensation method is composed of a neural deadbeat observer To reduce the noise effect, the post-filter implemented by MA(moving average) process, is adopted. The parameter compensator with RLSM (recursive least square method) parameter estimator is adopted to increase the performance of the load torque observer and main controller The parameter estimator is combined with a high performance neural load torque observer to resolve the problems. The neural network is trained in on-line phases and it is composed by a feed forward recall and error back-propagation training. During the normal operation, the input-output response is sampled and the weighting value is trained multi-times by error back-propagation method at each sample period to accommodate the possible variations in the parameters or load torque. As a result, the proposed control system has a robust and precise system against the load torque and the Parameter variation. A stability and usefulness are verified by computer simulation and experiment.

키워드

참고문헌

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