Permanent Magnet Synchronous Motor Control Research Based on Improved Sliding Mode Algorithm

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A speed controller with fuzzy sliding mode algorithm was designed by using power function instead of the traditional switch symbol function, and adjusting the approach law parameters combined with fuzzy algorithm in real time, as it was difficult to eliminate the chattering when designing a PMSM speed controller with the traditional sliding mode variable structure. The mathematical model of the PMSM was built in Matlab/Simulink with the vector control strategy. The simulation results showed that the control system of PMSM built by improved sliding mode had quick velocity response with less overshoot and significantly weakened chattering, which verified the efficiency of the improved algorithm in the simulation stage.

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1581-1585

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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