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http://dx.doi.org/10.5370/JEET.2017.12.4.1449

Simple Bump-removal Scheme for the Position Signal of PM Motor Drives with Low-resolution Hall-effect Sensors  

Lee, Dong-Myung (School of Electronic and Electrical Engineering, Hongik University)
Publication Information
Journal of Electrical Engineering and Technology / v.12, no.4, 2017 , pp. 1449-1455 More about this Journal
Abstract
The vector control technique using low-resolution Hall-effect sensors has been widely used especially in consumer electronics. Due to electrical and/or mechanical unevenness related to binary-type Hall sensors, the calculated or estimated position information has discontinuities so called bumps, which causes the deterioration of vector control performance. In order to obtain a linearly changing position signal from low-precision Hall-effect sensors, this paper proposes a simple bumps in position signal removal algorithm that consists of a first-order observer with low-pass filtering scheme. The proposed algorithm has the feature of no needs for system parameters and additional estimation processes. The validity of the proposed method is verified through simulation and experimental results.
Keywords
Position estimation; Bump-removal scheme; Hall-effect sensors; 1st order observer;
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Times Cited By KSCI : 1  (Citation Analysis)
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