基于Super-Twisting无位置滑膜观测器的永磁同步电机控制

doi:10.16180/j.cnki.issn1007-7820.2023.11.002

Abstract

Abstract:

In view of the high precision requirement of permanent magnet synchronous motor in some workplaces, an algorithm based on second-order Super-Twisting synovium theory is proposed based on the mathematical model of permanent magnet synchronous motor. In this method, the motor speed and position information are obtained by calculating the observed value of the back electromotive force of the motor, so as to realize the sensorless control of the permanent magnet synchronous motor. According to Lyapunov stability theory, the observer converges. MATLAB/Simulink is used to build a simulation model of the control system to verify the feasibility of the control system. The simulation results show that compared with the traditional synovial film observer, the proposed algorithm can effectively reduce the chattering of synovial film, improve the estimation accuracy and response speed of the system, and enables it to track the rotor position and velocity information better.

Key words: Super-Twisting algorithm, permanent magnet synchronous motor, sliding observer, Lyapunov stablility, position sensorless control, vector control, sliding mode theory, observe the rotational speed

CLC Number:

TP273

HUANG Chengcheng,JIN Hai,LU Wenqi. Permanent Magnet Synchronous Motor Control Based on Super-Twisting Sliding Film Observer[J].Electronic Science and Technology, 2023, 36(11): 8-13.

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Permanent Magnet Synchronous Motor Control Based on Super-Twisting Sliding Film Observer

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