IPMSM Vector Control using an I/F Initial Operating Method

Owing to the few signals are generated using low resolution position sensor at low speed, rotor position estimation is difficult in drum washing machine application. Besides, inertia of water and drum makes the initial load to almost two times of rated load. Therefore over current can be occurred at initial operation and it can affect the control performance. In this paper, IPMSM vector control for drum washing machine is proposed by applying I/F initial operating method and sensorless control. And we verify the performance through experiment of drum washing machine.