Sensorless Control of a Permanent Magnet Synchronous Motor with Compensation of the Position Error Using Rectangular 2 Hall Sensors

구형파 2-Hall Sensor를 사용한 영구자석형 동기전동기의 센서리스 제어시의 위치오차 보정

Generally, because of the cost and the restricted manufacture standard, the motor control for home appliance have been used the method using hall sensors or the sensorless method. In the conventional sensorless method using home appliance, the resistor and the back-EMF coefficient are varied by the motor speed and the load torque. Therefore, these variations cause the position error when the sensorless control is operated. This paper proposes the compensation method for sensorless position error using 2-hall sensor pulse signals.