The Research on Adaptive Fuzzy Control Systems of Brushless DC Motors Based on DSP

A brushless DC motor is a nonlinear system with strong couplings and multiple variables,which is difficult to establish its accurate mathematical model. In the paper, based on the analysis of brushless DC motor control systems, a adaptive fuzzy PID intelligent controller is established, in which fuzzy control theories are combined with PID control methods, making full use of super computing and reasoning abilities of digital signal processors. PID parameters can be automatically adjusted according to the actual response of fuzzy reasoning. The experimental results show that the system has a better robustness and faster response speed compared with systems with traditional PID controls .