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.
CITATION STYLE
Zheng, Z., Li, Y., & Fadel, M. (2011). Novel position controller for PMSM based on state feedback and load torque feed-forward. Journal of Power Electronics, 11(2), 140–147. https://doi.org/10.6113/JPE.2011.11.2.140
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