METHOD FOR STARTING OF SENSORLESS MOTOR

摘要

A method for starting a sensorless motor is provided to generate rating torque in stating the sensorless motor by compensating a voltage for moving a stator. A method for starting a sensorless motor includes the steps of: applying power to the sensorless motor to excite a stator of the sensorless motor(S110); periodically determining whether excitation of the stator is completed(S120); measuring a d-axis voltage by using a d-axis current and a feedback current of the sensorless motor when the excitation of the stator is not completed(S130); operating a resistance compensation value of the stator by comparing the measured d-axis voltage with a d-axis reference voltage(S140); operating a compensation voltage by using the resistance compensation value of the stator when the excitation is completed(S150); and generating the operated compensation voltage(S160).