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| Permanent magnet synchronous motor vector control based on improved sliding mode observer |
| Wang Kaicheng, Yang Mingfa |
| College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108 |
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Abstract Aiming at the chattering problem of the traditional sliding mode observer in the position sensorless control of permanent magnet synchronous motor, an improved sliding mode observer is proposed. By using the saturation function and the back EMF Kalman filter to reduce the chattering, an optimized phase-locked loop is introduced to extract the motor speed and position information, and the estimation accuracy is improved. Finally, the Matlab/Simulink simulation system model is established to verify the proposed method. The simulation results show that the improved sliding mode observer ensures the robustness of the system, and the chattering is suppressed to some extent, which improves the dynamic performance of the motor and estimation accuracy.
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Received: 20 March 2019
Published: 29 September 2019
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| Cite this article: |
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Wang Kaicheng,Yang Mingfa. Permanent magnet synchronous motor vector control based on improved sliding mode observer[J]. Electrical Engineering, 2019, 20(10): 29-34.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2019/V20/I10/29
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2019, Vol. 20 
