NDLI: Sensorless control of switched reluctance motor drive based on BEMF calculation

Content Provider	IEEE Xplore Digital Library
Author	Salmasi, F.R. Fahimi, B. Gao, H. Ehsani, M.
Copyright Year	2002
Description	Author affiliation: Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA (Salmasi, F.R.)
Abstract	There have been several approaches to the problem of sensorless rotor position detection in switched reluctance motors but the great majority of them are not able to cover all the constant torque region in SRMs torque-speed profile since they are mainly based on voltage equation integration to estimate the flux or neglecting motional the back electromotive force or BEMF, in that equation. This paper proposes a method to the sensorless control of SRM to cover the specified region efficiently. A novel method to estimate the back EMF online based on the current waveform is introduced. A position estimation equation is derived based on the estimated BEMF and an analytical model for the SRM. Then a commutation strategy is designed based on the position estimation equation. The proposed sensorless method has been implemented on Texas Instrument TMS320LF2407 fixed-point digital signal processor and has been applied to a 1hp SRM test bed successfully.
Sponsorship	IEEE
Starting Page	293
Ending Page	298
File Size	525530
Page Count	6
File Format	PDF
ISBN	0780374045
DOI	10.1109/APEC.2002.989261
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-03-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sensorless control Reluctance motors Reluctance machines Equations Rotors Motion detection Torque Voltage Motion estimation Force sensors
Content Type	Text
Resource Type	Article

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