A review of modeling, analysis and control methods of Brushless DCMotors

Brushless Direct Current (BLDC) motors are increasingly being used in industrial applications and electric vehicles. In order to design and control the machine for high dynamic performance, as well as for real-time fault diagnosis of the BLDC drives, analytical modeling is often the first step. This paper presents a survey of different ways of modeling and analysis of BLDC motors along with their control methods. Along with the conventional BLDC control, different modern control algorithms like state feedback control mechanism and novel technique of IC based control algorithm are widely being used for controlling the motor, which are reported in the paper as well. BLDC motor is modeled and simulated and the simulations results are included in the paper. Lastly, major applications of BLDC motors are listed.