Performance Evaluation of FuzzyPID Controller for Speed Control of Brushless DC Motor Drive

Abstract

This paper presents a comprehensive performance evaluation of FuzzyPID controller for speed control of permanent-magnet brushless DC motor. Motor speed responses are studied for a variety of operating conditions including response to small and large step speed reference change, and response to step load change. Simulation results are further compared with experimental results, obtained using PID controller and FuzzyPID controller respectively. The experimental results proved that FuzzyPID controller provides a superior speed response compared to PID controller with faster rise time, faster settling time and minimum overshoot. The is achievable since the FuzzyPID controller is able to continuously tune the gain parameters online, resulting in more robust motor operation for both transients and steady-state condition.