The elimination of the position sensor has been one important requirement i
n 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 positi
on as the input of the full-order observer, the rotor speed and disturbance
torque are estimated, The proposed sensorless vector control scheme is dem
onstrated with experimental results.