Abstract:Brushless DC motor is a multivariable,nonlinear control object,while PID control and it is difficult to achieve the modern industrial control requirements of high precision and high performance in other traditional control methods.Based on BLDCM motor as the research object,the structure and principle of BLDCM motor are introduced,and the structure of 3 BLDCM control system is given based on the traditional PID,fuzzy PID and neural PID.Finally,the performance of 3 BLDCM motor speed control systems is simulated on the MATLAB/Simulink simulation platform.The simulative results show that the performance of fuzzy PID control system is optimal.