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Sensorless vector control of synchronous reluctance motors with disturbance torque observer

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

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:

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