Position Sensorless Direct Torque Control of SR Motors

Switched reluctance motors (SR motors) have several desirable features, including simple construction, high reliability and low cost. But large torque ripple and expensive position sensors used in SR motor drive systems are considered as drawbacks for wide application. Several studies have succeeded in torque ripple reduction for SR motors using direct torque control (DTC) technique. In this paper, a new position sensorless direct torque control method is proposed. The validity and the performance of the proposed method are demonstrated through the computer simulation