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http://dx.doi.org/10.7471/ikeee.2020.24.4.954

A Study on Speed Variable Proportional Resonant Current Controller of Single-Phase PMSM  

Lee, Won-Seok (Dept. of Electrical Engineering, Kyungnam University)
Hwang, Seon-Hwan (Dept. of Electrical Engineering, Kyungnam University)
Park, Jong-Won (R&D Center, GMB Korea Cooperation)
Publication Information
Journal of IKEEE / v.24, no.4, 2020 , pp. 954-960 More about this Journal
Abstract
This paper proposes a speed variable proportional resonant current control method for a single-phase permanent magnet synchronous motor(PMSM). Due to the electromagnetic characteristics of a single-phase PMSM, negative and zero torques are generated in the part corresponding to the phase difference between the stator current and the back electromotive force. In addition, overcurrent limitation is required because of the low stator resistance and inductance in sensorless operation. When using the vector control for current control of single-phase PMSM under these conditions, processes of coordinate transformation, inverse coordinate transformation, and generation of virtual dq-axis components are required. However, the proposed variable speed proportional resonant current control method does not need the coordinate transformation used for AC motors. In this paper, we have confirmed stable maneuverability by using variable proportional resonant current control algorithm, and proposed sensorless control based on a mathematical model of a single-phase PMSM without a position sensor when reaching a constant speed. The usefulness of the current control method was verified through several experiments.
Keywords
Single-phase PMSM; Coordinate Transformation; Speed Variable; Proportional Resonant; Current Controller;
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