Direct Torque Control Modeling & Simulation for Induction Motor

유도전동기의 직접토오크제어 모델링 및 시뮬레이션

Direct Torque Control(DTC) of AC motor has the fast torque and flux dynamic responses even though it has very simple scheme to implement. However DTC do not show good performance at low speed range with conventional open loop stator flux observer when stator resistance varied. So authors proposed nonlinear stator flux obsever in order to flux estimation at low speed and show its simulation results.