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A speed-flux observer for the induction motor (IM) based on the fractional order sliding mode (FOSM) is proposed in this paper. Aiming at the problems of system parameter variation, external disturbance, and chattering, a new FOSM observer is designed. The anti-interference of the observer is improved, at the same time, the flux and speed of the motor are estimated, and the smoothness of the output of the estimation curve is improved, so that the estimation results haven shown high accuracy and advantages in dynamic response. Finally, the effectiveness and flexibility of the proposed FOSM method are proved by experiment results.

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Fractional Order Sliding-Mode Observer for Speed and Flux of Induction Motor

  • 会议论文

  • 发表日期：

    2025年

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  • Minghao Zhou,
  • Mingzhe Jia,
  • Dong Wang,
  • Jiaxin Chen,
  • Weiwei Wu,
  • Ying Chi,
  • Shaohuo Yu

摘要

A speed-flux observer for the induction motor (IM) based on the fractional order sliding mode (FOSM) is proposed in this paper. Aiming at the problems of system parameter variation, external disturbance, and chattering, a new FOSM observer is designed. The anti-interference of the observer is improved, at the same time, the flux and speed of the motor are estimated, and the smoothness of the output of the estimation curve is improved, so that the estimation results haven shown high accuracy and advantages in dynamic response. Finally, the effectiveness and flexibility of the proposed FOSM method are proved by experiment results.