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Sensorless vector control of synchronous reluctance motors with disturbance torque observer

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3 Author(s)
T. Senjyu ; Fac. of Eng., Ryukyus Univ., Okinawa, Japan ; T. Shingaki ; K. Uezato

The elimination of the position sensor has been one important requirement in vector control systems because the position sensor spoils the reliability and simplicity of drive systems. Therefore, we present a sensorless vector control technique for synchronous reluctance motors. The rotor position is calculated easily from ds-qs-axes flux linkages which are estimated with a first-order lag compensator. Furthermore, utilizing estimated rotor position as the input of the full-order observer, the rotor speed and disturbance torque are estimated. The proposed sensorless vector control scheme is demonstrated with experimental results

Published in:

IEEE Transactions on Industrial Electronics  (Volume:48 ,  Issue: 2 )