NDLI: A new sensorless control for switched reluctance motor

Content Provider	IEEE Xplore Digital Library
Author	Miki, I. Komatsuzaki, A. Yoshida, K.
Copyright Year	2005
Description	Author affiliation: Dept. of Electr. & Electron. Eng., Meiji Univ., Kawasaki (Miki, I.; Komatsuzaki, A.; Yoshida, K.)
Abstract	This paper describes a new rotor position sensorless control method for switched reluctance motor (SRM) drives based on the variation of an active phase inductance. The phase inductance regularly varies with the rotor position and increases as the rotor and stator poles are approaching alignment. When the rotor and stator poles are aligned, the phase inductance has a maximum value, and thereafter the phase inductance decreases. In the low speed region, the SRM can be controlled without the position sensor by changing the excitation when the slope of the phase inductance becomes zero or less than zero. As the speed increases, this method cannot be applied because of the large negative torque produced by the regenerative current. Therefore, the SRM must be controlled so that the current can be zero at the aligned position approximately. To implement smoothly this operation, the sensorless control method using the difference between the phase inductance at the aligned position and the phase inductance calculated every sampling is introduced. In the high speed region, a new technique with the difference of both phase inductances is successfully used. Experimental results present the validity of the proposed method
File Size	873981
File Format	PDF
ISBN	9075815093
DOI	10.1109/EPE.2005.219230
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-11
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	EPE Association
Subject Keyword	Inductance Torque Phase estimation Rotors Sensorless control Stators Reluctance machines Sampling methods Hardware Reluctance motors Switched reluctance drive
Content Type	Text
Resource Type	Article

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