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Sliding Mode Disturbance Compensated Speed Control for PMSM Based on an Advanced Reaching Law
  • +2
  • Chengming Chen,
  • Zhizhong Xie,
  • Xuan Wang,
  • Zhengling Lei,
  • Chunxia Shangguan
Chengming Chen
Shanghai Ocean University School of Engineering
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Zhizhong Xie
Shanghai Ocean University School of Engineering
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Xuan Wang
Shanghai Ocean University School of Engineering
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Zhengling Lei
Shanghai Ocean University School of Engineering
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Chunxia Shangguan
Shanghai Ocean University School of Engineering

Corresponding Author:cxshangguan@shou.edu.cn

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Abstract

Addressing the sensitivity of permanent magnet synchronous motors to external disturbances, a novel sliding mode control (NSMC) strategy is proposed to suppress sliding mode jitter and enhance speed regulation performance. First, an advanced non-singular fast terminal sliding mode (ANFTSM) surface and a new adaptive power rate reaching law (NAPRRL) were developed. A new switching function replaces the conventional sign function to enhance the system’s disturbance immunity and dynamic response speed. Then, the system’s anti-interference performance was further enhanced by introducing an improved novel sliding mode observer (INSMO) for feedback compensation of the aggregate disturbance. Finally, MATLAB/Simulink simulations and experimental validations demonstrate that the NSMC control strategy exhibits superior performance in both the start-up response and load disturbance phases, with enhanced dither-resistance, rapid dynamic response, and disturbance suppression capabilities.
Submitted to International Journal of Circuit Theory and Applications
12 Jun 2024Review(s) Completed, Editorial Evaluation Pending
19 Jun 2024Editorial Decision: Accept