Speed global integral sliding mode control with a load sliding mode observer for PMSM

IEICE Electronics Express

Wang Xudong¹  Liu Yubo¹ 

[1] Institute of Electrical and Electronic Engineering, Harbin University of Science and Technology

关键词: permanent magnet synchronous motor (PMSM);    global integral sliding mode (GI-SMC);    load torque;    sliding mode observer (SMO);   

DOI  :  10.1587/elex.15.20171270

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

In this paper, a permanent magnet synchronous motor controller that improves the robustness to parameter perturbations and load disturbances is proposed for electric drive applications. The speed loop uses global integral sliding mode control strategy, chooses an appropriate global integral sliding surface, maintains a continuous control law, realizes the sliding mode motion throughout the entire motion of the system through a dynamic nonlinear sliding surface, effectively weakens the chattering inherent in the sliding mode control system, and significantly improves the dynamic quality. The load torque sliding mode observer is used to realize the feed-forward compensation of the load torque, the influence on the performance of control system caused by load torque disturbance can be inhibited. The proposed controller is found to be more effective than the conventional controller, as demonstrated through simulations and experiments.

【 授权许可】

CC BY