Mathematical Modelling and Simulation of Phase Advance Angle for Brushless DC Motor

摘要

The brushless DC motor is widely used in various industrial fields because of low maintenance, high power density and high efficiency. The permanent magnets in the rotor generate a constant magnetic flux which is limited by the motor speed range. Mathematical modelling of brushless DC motor is necessary for realizing the dynamic behaviour. This paper presents a phase advanced angle for brushless DC motor to extend speed range of brushless DC motor beyond the rate top speed. The experimental designed system is simulated. The simulated results show that a phase advanced angle in the designed system can extend speed range. Finally, it can improve the ability of the proposed system, efficiently.