Real-time vibration compensation for active magnetic bearing systems based on LMS algorithm

被引：0

作者：

Gao, Hui ^{[1
]}

Xu, Long-Xiang ^{[1
]}

机构：

[1] College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

来源：

Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2009年 / 22卷 / 06期

关键词：

Adaptive filters - Real time control - Three term control systems - Magnetic bearings - Process control - Magnetism - Vibration analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

When the rotor of active magnetic bearing (AMB) systems rotates at high-speed, periodic vibration response can be generated in the systems, which can reduce system control precision, stability and limit the rotor speed, etc. For the vibration response in the systems, firstly, the causes of periodic vibration are analyzed from the Mechanical properties of rotor and the process of control system; secondly, the sinusoidal signal of vibration embodied in the system control process is treated as an objective, and PID controller combined with least mean square (LMS) algorithm is adopted to adaptive filter thirdly, by analyseing the fixed step size LMS algorithm, the PID parameters and the frequency interaction of the signals, one real-time switching compensation control strategy according to the frequency is presented. The effectiveness of the method is demonstrated through experiments, which the foundation for the speed increase of AMB system.

引用

页码：583 / 588