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Speed Sensorless Torque Control Of An Ipmsm Drive With Online Stator Resistance Estimation Using Reduced Order Ekf, Emad Gameil Shehata E. G. Shehata

Emad Gameil Shehata E. G. Shehata

Speed sensorless control of an interior permanent magnet synchronous motor (IPMSM) based on direct torque control (DTC) is proposed in this paper. The rotor speed and position of the IPMSM are estimated based on an active flux concept, where, the active flux vector position is identical to the rotor position. The proposed algorithm does not require neither high frequency injection signal nor complicated schemes even at vary low speed operation. Torque/ flux sliding mode controller (SMC) combined with space vector modulation is proposed to improve the performance of the classical DTC. Stator resistance value is required for a stator flux …