The model presents speed control of brushless DC motor. There is complete dynamic model of brushless DC motor. Actual speed of motor is compared with reference speed to control three phase inverter to adjust the terminal voltage. This model of BLDC m

无数直流电机无位置传感器速度控制。利用电机运行时产生的反电动势估算转子位置。(Sensorless speed control of numerous DC motors.The rotor position is estimated by the back electromotive force generated during the motor operation.)