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http://dx.doi.org/10.7471/ikeee.2020.24.4.1104

Proportional Resonant Feedforward Contrl Algorithm for Speed Ripple Reduction of 3-phase SPMSM  

Lee, Seon-Yeong (Dept. of Electrical Engineering, Kyungnam University)
Hwang, Seon-Hwan (Dept. of Electrical Engineering, Kyungnam University)
Kim, Gyung-Yub (R&D Center, GMB Korea Cooperation)
Park, Jong-Won (R&D Center, GMB Korea Cooperation)
Publication Information
Journal of IKEEE / v.24, no.4, 2020 , pp. 1104-1108 More about this Journal
Abstract
This paper propose a variable proportional resonant feedforward algorithm for reducing the speed ripple of a three-phase permanent magnet synchronous motor. In general, the torque ripples can be generated by electrical pulsation due to current measurement errors and dead time and mechanical pulsation because of rotor eccentricity and eccentric load. These torque pulsations can cause speed pulsations of the motor and degrade the operating performance of the motor drive system. Therefore, in this paper, the factors of the speed ripple is analyzed and an algorithm to reduce the speed ripple is proposed. The proposed algorithm applied a variable proportional resonant controller in order to reduce the specific operating frequency included in the speed pulsation, and utilized a feedforward compensation controller structure to perform the compensation operation. The proposed algorithm is verified through various experiments.
Keywords
3-phase SPMSM; PR Control; Feedforward; Speed Ripple Reduction; Eccentric Load;
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