Abstract
On the basis of analyzing the mathematic model of the permanent magnet synchronous motor (PMSM), a novel approach to PMSM servo system using fuzzy active disturbance rejection controller (ADRC) is presented in this paper, which can meet the needs of rejecting the disturbance and time-vibration of parameters for the AC servo system. Modeling and simulation of the servo system are done based on MATLAB/Simulink, and the parameters of the PID controller are automatically adjusted on line to correct the system by using fuzzy adaptive controller. Then a fully digital AC servo system is designed according to the result of simulation using TMS320F2812, which is a type of Digital signal Processor (DSP). According to the results of simulation and tests, the designed servo system controller based on the theory of fuzzy active disturbance rejection has strong robustness, and especially has better effect on restraining the overshoot.
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