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http://dx.doi.org/10.6113/JPE.2010.10.3.300

PMSM Angle Detection Based on the Edge Field Measurements by Hall Sensors  

Kim, Jae-Uk (Department of Electrical Engineering, POSTECH)
Jung, Sung-Yoon (Department of Electrical Engineering, POSTECH)
Nam, Kwang-Hee (Department of Electrical Engineering, POSTECH)
Publication Information
Journal of Power Electronics / v.10, no.3, 2010 , pp. 300-305 More about this Journal
Abstract
This paper presents a two Hall sensor method for rotor angle detection in permanent magnet synchronous motors (PMSM). To minimize the implementation complexity, the system is designed to measure the edge field of permanent magnet pieces. However, there are nonlinearities in the measured values of the edge field. In this work, an angle correction algorithm is proposed, and the improvements in accuracy are verified through experiments. Finally, a field orientation controller is constructed with the proposed angle detection algorithm.
Keywords
Encoderless control; Linear Hall sensor; PMSM;
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