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http://dx.doi.org/10.5370/KIEE.2018.67.11.1434

Reduction of Periodic Speed Ripple of Electric Machines Using Resonant Controller and Repetitive Controller  

Jung, Sung-Min (Component Solution Control Development Team, H&A Control Laboratory, LG Electronics)
Lee, Jung-Ho (Dept. of Electrical Engineering, Kyungpook National University)
Choi, Jong-Woo (Dept. of Electrical Engineering, Kyungpook National University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.67, no.11, 2018 , pp. 1434-1446 More about this Journal
Abstract
This paper presents new speed control strategy for periodic load torque injected in AC motor. If motor drive system has a periodic load torque, it causes a periodic motor speed ripple bringing about vibrations and noises. This paper proposed new control method consisting of PIR(proportional-integral-resonant) controller and repetitive controller. PIR controller controls DC, low frequency and fundamental components and repetitive controller controls other harmonics. The performance has been verified through computer simulations using MATLAB Simulink and experiments.
Keywords
Speed ripple; Proportional-integral-resonant controller; Repetitive controller;
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