抄録
In our previous paper, we proposed a new sensorless elimination method for position control of an Interior Permanent Magne (IPM) motor, in which we utilize carrier frequency component current of PWM inverter as the motor position informatio source. In this paper we propose a new position estimation diagram and shows the experimental system together with the control results of the new position control method. With this control scheme, the motor speed has been successfully controlled from zero speed to 1, 400rpm (1.4 times rated speed) without mechanical sensor.
