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In order to improve the speed regulation performance of PMSM, sliding mode control was gradually introduced into the control system instead of PI control. However, the development of sliding mode control was constrained due to the slow approaching speed and inherent chattering issues of the approach law in traditional sliding mode control. Therefore, an improved sliding mode approach law was proposed. Firstly, in order to solve the problem of difficult balance between approaching speed and chattering in traditional constant velocity approaching laws, the system state variable was introduced in the proposed approaching law, and an exponential term was introduced in the sliding mode gain to ensure the approaching speed while suppressing sliding mode chattering. Secondly, due to the discontinuous nature of the switching function near to zero, it could cause sliding mode chattering problem. Therefore, the conventional switching function was replaced by the sat function, achieving the goal of suppressing sliding mode chatter while ensuring response speed. Then, based on the proposed approach law, a sliding mode speed controller for permanent magnet synchronous motors was designed. Finally, simulation and experimental results indicated that the proposed approach law could improve the control performance of the permanent magnet synchronous motor speed control system.
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Basic Information:
DOI：10.13705/j.issn.1671-6841.2023136
China Classification Code:TP273;TM341
Citation Information:
[1]WANG Yaoqiang,WANG Qiuxu,NIE Fuquan ,et al.Research on PMSM Speed Control Strategy Based on Adaptive Sliding Mode Controller[J].Journal of Zhengzhou University(Natural Science Edition),2025,57(01):88-94.DOI:10.13705/j.issn.1671-6841.2023136.
Fund Information:
国家自然科学基金项目(51507155); 河南省重点研发与推广专项项目(222102520001)
2023-06-09
2023
2024-12-04
2025-01-27
2025
2
2024-02-07
2024-02-07
2024-02-07