PERFORMANCE COMPARISON OF BLDC MOTOR BASED ON CONVENTIONAL AND EXPERT CONTROLLERS

BLDC motors are the compatible motors in EV's now-a-days for their feasibility, high efficiency, high power density and reliability. To obtain superior drive characteristics different speed control techniques are adopted. The speed control of BLDC motor is done using various control strategies using PWM, sensor less speed control and Sensor based speed control. PI and PID controllers are immensely used for the control of speed in BLDC motors. The performances of BLDC motor have been evaluated using conventional controllers PI and PID. In order improve dynamic characteristics and to obtain smooth, quick response Fuzzy logic based intelligent Fuzzy-PID controller can replace conventional PI and PID controllers. This paper objective is to evaluate the response of BLDC motor with intelligent Fuzzy-PID controller and compare conventional PID controller response with it.