PMSM position tracking based on improved sliding mode reaching law and nonlinear disturbance observer

Hongliang Yan; Jianan Zhang; Hulin Long

doi:10.1117/12.2639381

27 June 2022 PMSM position tracking based on improved sliding mode reaching law and nonlinear disturbance observer

Hongliang Yan, Jianan Zhang, Hulin Long

Proceedings Volume 12253, International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2022); 122530J (2022) https://doi.org/10.1117/12.2639381
Event: Second International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2022), 2022, Qingdao, China

Abstract

In order to improve the position tracking accuracy and system control performance of permanent magnet synchronous motor in a complex environment, an improved backstepping sliding mode position tracking control method based on traditional sliding mode control is proposed. The sliding mode reaching law is optimized, the exponential reaching law is combined with the power reaching law, and the traditional symbolic function is replaced by the hyperbolic tangent function. According to the backstepping control principle, the appropriate Lyapunov function and virtual control quantity are obtained, and the position servo system controller is obtained by combining the sliding mode control. Aiming at the influence of parameter perturbation and external uncertain disturbance on the motor, the nonlinear disturbance observer is used to estimate it and feedback it to the backstepping sliding mode controller for compensation. Finally, the simulation in Matlab/Simulink shows that this method improved the response speed of position tracking, reduced the tracking error, and improved the anti-interference ability.

Citation Download Citation

Hongliang Yan, Jianan Zhang, and Hulin Long "PMSM position tracking based on improved sliding mode reaching law and nonlinear disturbance observer", Proc. SPIE 12253, International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2022), 122530J (27 June 2022); https://doi.org/10.1117/12.2639381

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