Isaac Scientific Publishing

Journal of Advances in Applied Mathematics

Research on Permanent Magnet Synchronous Motor Speed Control System Based on Three-Order Linear Active Disturbance Rejection Controller

Download PDF (501.5 KB) PP. 159 - 167 Pub. Date: October 6, 2020

DOI: 10.22606/jaam.2020.54003


  • Zhipeng Chen
    College of Electrical & Information Engineering, Southwest Minzu University, Chengdu 610041, China
  • Huazhang Wang*
    College of Electrical & Information Engineering, Southwest Minzu University, Chengdu 610041, China
  • Wei Zheng
    College of Electrical & Information Engineering, Southwest Minzu University, Chengdu 610041, China


Linear active disturbance rejection control (three-order LESO+PD control) and fuzzy PID control strategies are used to simulate the same permanent magnet synchronous motor with variable speed (constant load) and variable load (constant speed), by observing and analyzing the oscilloscope waveform data and waveform changes in Matlab/Simulink, we can compare the control performance of the two control algorithms under different conditions. By comparing the waveform changes of the oscilloscope, it is found that LADRC has more advantages in real-time than fuzzy PID, and the fluctuation is smaller after stabilization. However, the linear auto disturbance rejection control algorithm is more likely to cause overshoot, and it is not as easy to master as fuzzy PID in parameter adjustment. The two control algorithms have their own advantages and disadvantages.


permanent magnet synchronous motor, linear active disturbance rejection control, linear state observer, fuzzy PID control.


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