Abstract
A PWM drive card is designed aiming at a certain type of DC torque motor used in the speed turntable. A fuzzy immune-PID control method is used instead of the traditional PID method, in order to modulate the PWM waves, and then realize the control for servo¬¬¬ system of torque motor. The simulation results show that, compared with the traditional PID method, the responding time is greatly reduced by using the fuzzy immune-PID control method. And the system gets good anti-interference ability, of which dynamic and steady performances are also improved.
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