Model predictive current control combined sliding mode speed control for PMSM drive system
by Qian Guo; Tianhong Pan; Shan Chen
International Journal of Modelling, Identification and Control (IJMIC), Vol. 36, No. 4, 2020

Abstract: This work deals with an improved model predictive current control (MPCC) combined sliding mode speed control (SMC+MPC) method to reduce the tracking error of speed and current for permanent magnet synchronous motor (PMSM). Firstly, the establishment of the PMSM mathematical model in the synchronous rotating frame is introduced. Secondly, a cascade PMSM control system has been created. In this system, a sliding mode speed controller and a model predictive current controller are employed respectively to enhance the speed tracking accuracy and suppress the harmonic component of the three-phase currents. Finally, the schematic diagram of the proposed method and simulation results are provided in the paper. Moreover, sliding mode speed control combined with proportional-integral (PI) current control is simulated for comparison to prove the superiority of the proposed method.

Online publication date: Thu, 09-Sep-2021

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