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직접 토오크 제어를 이용한 센스리스 유도전동기의 속도제어
박건우(Gun-Woo Park),고태언(Tea-Eon Go),하홍곤(Hong-Gon Ha) 한국조명·전기설비학회 2001 한국조명·전기설비학회 학술대회논문집 Vol.2001 No.-
This paper presents a digitally speed sensorless control system for induction motor with direct torque control (DTC). The drive is based on Model Reference Adaptive System (MRAS) using state observer as a reference model for flux estimation. The system are closed loop stator flux and torque observer for wide speed range that inputs are currents and voltages sensing of motor terminal, model reference adaptive control (MRAS) with rotor flux linkages for the speed turning signal at low speed range, two hysteresis controllers. The proposed system is verified through simulation.