Title: Model predictive current control combined sliding mode speed control for PMSM drive system

Authors: Qian Guo; Tianhong Pan; Shan Chen

Addresses: School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, 212013, China ' Anhui Engineering Laboratory of Human-Robot Collaboration System and Intelligent Equipment, School of Electrical Engineering and Automation, Anhui University, Hefei, 230601, China ' School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, 212013, China

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.

Keywords: MPCC; model predictive current control; sliding mode speed control; PMSMs; permanent magnet synchronous motors; three closed loop control; field-oriented control.

DOI: 10.1504/IJMIC.2020.117490

International Journal of Modelling, Identification and Control, 2020 Vol.36 No.4, pp.297 - 303

Received: 03 Jul 2020
Accepted: 21 Oct 2020
Published online: 09 Sep 2021 *

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