Design Self-Tuning Fuzzy PID Control System for BLDC Motor Speed

Brushless DC (BLDC) motors has been widely used for many industrial applications such as automobile, medical and aerospace industry because of high efficiency, high torque, low volume, less electrical noise, longer life and low maintenance. In this Paper we used BLDC motor and designed self-tuning fuzzy PID controller to control BLDC motor speed. However, speed control system used in conventional PID controller has simple, stable and highly reliable algorithm but the speed control system of brushless DC motor is complex nonlinear system, so it is difficult to use conventional PID control. The performance of self-tuning fuzzy PID controller, which tuned on-line the PID controller gains has been compared with the typical PID. selftuning fuzzy-PID controller is proposed that combines the fuzzy controller with the conventional PID controller and has the advantages of two methods. Simulations and results on Matlab software show the effectiveness of proposed self-tuning fuzzy PID give better control performance than conventional PID controller.

Keywords:

Brushless DC (BLDC) motors , Speed motor , Conventional PID controller , Self- tuning fuzzy PID controller.