This study presents an intelligent control method for positioning a non-linear active magnetic bearing (AMB) system by using an emergent fuzzy logic controller (FLC). In this work, an AMB system that supports a rotating shaft without a physical contact is presented. By using a rotor dynamic model of the AMB system and electromagnetic forces of magnetic bearing the author designed an FLC for the AMB system. A closed-loop decentralized FLC for the AMB system was designed in this study. The control algorithm was numerically evaluated to construct a multiple-input and multiple-output mathematical model of the controlled system. The membership functions and rule design of FLC were based on the mathematical model of the AMB system. A current amplifier and hardware-in-loop (HIL) were used for an electromagnetic coil to generate magnetic forces suspending the rotor in the magnetic bearing. The results indicated that the system exhibits a satisfactory control performance with a low overshooting and produc-es improved transient and steady-state responses under various operating conditions. The proposed con-troller can be feasibly applied to AMB systems exposed to various external disturbances.
EXPERIMENT BASED ON FUZZY LOGIC CONTROL FOR ACTIVE MAGNETIC BEARING SYSTEM
2017-05-16
Tạp chí Khoa học Đại học Huế: Khoa học Tự Nhiên; Tập 126 Số 1B (2017): Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên; 67-80 ; Hue University Journal of Science: Natural Science; Vol. 126 No. 1B (2017): Hue University Journal of Science: Natural Science; 67-80 ; 2615-9678 ; 1859-1388 ; 10.26459/hueuni-jns.v126i1B
Article (Journal)
Electronic Resource
English
DDC: | 629 |
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