||Speed Control of an Interior Permanent Magnet Synchronous Motor using a Disturbance Observer
||(Yongho Jeon) ; (Shinwon Lee)
|| Interior permanent magnet synchronous motor; IPMSM; Disturbance; Disturbance observer; Proportional integral
||For precise speed control of an interior permanent magnet synchronous motor (IPMSM), information on load is required. Therefore, in the mechanical system of the motor, the load acting on the rotating shaft was considered as a disturbance, and in the electrical system, a disturbance observer was designed by considering the nonlinear terms as disturbance. The disturbance estimated from the designed observer is reflected in the speed controller and the current controller, respectively. As a result of operating the motor with a constant load of 1 [Nm], it can be confirmed that the undershoot that occurs when a load is applied is improved by about 13.2 [%].