Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Novel Position Controller for PMSM Based on State Feedback and Load Torque Feed-Forward

  • Zheng, Zedong (Dept. of Electrical Engineering, Tsinghua University) ;
  • Li, Yongdong (Dept. of Electrical Engineering, Tsinghua University) ;
  • Fadel, Maurice (LAPLACE Laboratoire Plasma et Conversion d'Energie)
  • Received : 2009.06.01
  • Accepted : 2010.11.29
  • Published : 2011.03.20
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Abstract

In this paper, a novel position controller based on state feedback and feed-forward is proposed. Traditional position and speed controllers are replaced by a single controller with the position and speed as state feedbacks, and the position command and load torque as feed-forwards. The feedback and feed-forward gains are obtained by analytic modeling and design. The load torque, rotor speed and position are estimated by an observer based on a Kalman filter (KF) with a low resolution mechanical position sensor. Feed-forward compensation by an estimated load torque is used to improve the dynamic performance during load torque changes.

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References

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