K. A. Wadhonkar

Dr. R. B. Sharma

Dr. G. A. Dhomane

Abstract

Brushless direct current (BLDC) motor is having various advantages over the conventional brushed DC motor as well as induction motor. It is singly fed synchronous speed motor and having advantages such as lower maintenance and longer life. Since speed response of any motor must be improved and hence controllers are incorporated. While adopting any controller for motor, knowledge of the requirement of the speed tracking must be there, this paper presents the speed control of BLDC motor using digital controllers which includes conventional controllers, fuzzy logic controller, and hybrid controllers. Time response parameters for each controller is presented in tabular form and comparative analysis is given. After comparative analysis best controller based on simulation results is also suggested. For simulation purpose MATLAB/SIMULATION environment is used.

Keywords- BLDC motor, Buck Converter, FLC, Fuzzy-PI controller, Fuzzy-PID controller, Hall effect sensor, P controller, PI controller, PID controller, PWM, VSI.