A Study on Control of Load Torque in the Induction Motor using a Disturbance Cancellation Observer

유도 전동기의 외란 상쇄 관측기를 이용한 부하토오크 제어에 관한 연구

This paper designed a robust control of an induction motor using a disturbance cancellation observer of a feedforward control. The speed response of conventional PI controller characteristic is affected by variations of load torque disturbance. In the proposed system, the speed control characteristic using a feedforward control isn't affected by a load torque disturbance. High speed calculation and processing for vector control is carried out by ADMC300 digital signal processor. Validity of the proposed control method is verified through simulation and experimental result.