Adaptive Gain-Based Double-Loop Full-Order Terminal Sliding Mode Control of a Surface-Mounted PMSM System

Minghao Zhou, Xueran Fei, Wei Xu, William Cai (), Ying Xie and Zizhen Qiu
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Minghao Zhou: School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China
Xueran Fei: School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China
Wei Xu: Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
William Cai: School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China
Ying Xie: School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China
Zizhen Qiu: CATARC New Energy Vehicle Research and Inspection Center (Tianjin) Co., Ltd., Tianjin 300300, China

Energies, 2025, vol. 18, issue 8, 1-16

Abstract: This article proposes a new adaptive gain, full-order terminal sliding mode control algorithm for the speed regulation of a surface-mounted permanent magnet synchronous motor (SPMSM) control system. To deal with the mismatched uncertainties in the double-loop nonlinear system of the SPMSMs, a virtual control technique is constructed with the full-order terminal sliding mode control to ensure that the tracking error trajectory can converge to equilibrium in finite time. Owing to the integral control law, the output signals of the controllers are smoothed, with the chattering phenomenon attenuated and the gain-margin overestimation avoided. Comprehensive simulation and experimental results have been carried out to demonstrate the superiority of the proposed method in improving tracking accuracy, rapidness, and robustness to the matched and mismatched uncertainties.

Keywords: double-loop sliding mode control; terminal sliding mode; virtual control law (VCL); adaptive gain; mismatched uncertainty; permanent magnet synchronous motor (PMSM) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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