Abstract

The traditional PI control method is used to control the brushless DC motor with the disadvantage that the proportional and integral parameters are constant. So an advanced method of predictive PI control is proposed, which predicts the value of speed of next moment by multi-order incremental method based on the current and previous speed of brushless DC motor. And the simulation model is established by MATLAB. Then the results that the method is better than traditional PI control and fuzzy control in the speed modulation, specific performances: faster response, less overshoot, stable anti-disturbance and better stability.

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