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http://dx.doi.org/10.7471/ikeee.2019.23.3.1020

A Study on Rotor Polarity Detection of SP-PMSM Using Offset Current Based on Current Control  

Park, Jong-Won (R&D Center, GMB Korea Cooperation)
Hwang, Seon-Hwan (Dept. of Electrical Engineering, Kyungnam University)
Publication Information
Journal of IKEEE / v.23, no.3, 2019 , pp. 1020-1026 More about this Journal
Abstract
In this paper, a rotor polarity detection algorithm is proposed to control the single-phase permanent magnet synchronous motors(SP-PMSMs) for high speed sensorless operation. Generally, the sensorless control of a SP-PMSM is switched to the sensorless operation in a specific speed region after the open loop startup. As a result, it is necessary to detect the rotor polarity to maintain a constant rotational direction of the SP-PMSM at the starting process. There, this paper presents a novel rotor polarity detection method using a high frequency voltage signal and offset current which is generated by current regulator. The proposed algorithm verified the effectiveness and usefulness of the rotor polarity detection through several experiments.
Keywords
Initial rotor polarity detection; Single-phase permanent magnet synchronous motor; Current regulator; High frequency voltage signal; Offset current;
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Times Cited By KSCI : 1  (Citation Analysis)
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