永磁同步电机调速系统的模糊趋近模控制

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Abstract To meet the demand of permanent magnet synchronous motor (PMSM) drive system’s high-performance control and robustness, a sliding mode controller based on fuzzy reaching law with simple algorithm and easy implementation is researched by combining reaching law of sliding mode variable structure control and fuzzy control. According to the values of switching function, the controller can use fuzzy rules to adjust reaching law’s parameters in real time and resolve the problems of system’s approaching rapidity and restraining chattering. The simulative test of PMSM’s vector control system shows that adopting sliding mode controller based on fuzzy reaching law as speed regulator, rotate speed responds rapidly, stabilizes quickly and has no overshoot and that system obtains better dynamic performance, has stronger robustness for parameter perturbation and external load disturbance and reduces chattering phenomenon.

Key words： permanent magnet synchronous motor(PMSM) sliding mode variable structure control fuzzy control reaching law

Received: 20 April 2015 Published: 23 March 2015

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	Wang Degui

Cite this article:

Wang Degui. Sliding Mode Control based on Fuzzy Reaching Law of PMSM Drive System[J]. Electrical Engineering, 2015, 16(03): 10-14.

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http://dqjs.cesmedia.cn/EN/Y2015/V16/I03/10

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