Htet Htet Lwin, Nang Mwe Seng
In this paper, propose PI controller techniques for speed control of three-phase brushless DC motor. The mathematical model of the brushless DC motor is improved and it is used to analyze the performance of the controllers. This system compares analysis of proportional (P) and proportional-plus-integral (PI) controller for three-phase brushless DC motor. The control system parameters such as rise time, peak time, steady-state error, settling time, peak overshoot, are used to compare the speed response of PI controller and P controller. The simulation of the proposed scheme was done in SIMULINK environment. The PI controller has reduced overshoot, less steady-state error and less settling time. Results show that the PI controller has better performance than P controller.
Brushless DC motor, Proportional controller, Proportional-Integral controller, Speed control