IEEJ Transactions on Industry Applications
Online ISSN : 1348-8163
Print ISSN : 0913-6339
ISSN-L : 0913-6339
Position Sensorless Control of Switched Reluctance Motors with Pulse Injecting for Two Unexcited Windings
Ayumi TakumaShuto OhataToshiya Yoshida
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2023 Volume 143 Issue 5 Pages 433-438


This paper proposes a control method of switched reluctance motors without requiring position sensors. A pulse voltage is applied to the unexcited two windings and their currents are observed. By detecting the intersection between one of the currents and the other one multiplied by a certain factor obtains a signal indicating that the rotor is at a certain position. A Phase-Locked Loop block receives this signal and provides the estimated rotor position information. The switching of the winding excitation is controlled using the estimated information. Experimental results confirm that the estimated position information has almost been the same as the actual rotor angle. Moreover, load and transient tests in speed were performed and their results are presented.

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© 2023 by the Institute of Electrical Engineers of Japan
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