Nonlinear Smooth Feedback Control of a Three-Pole Active Magnetic Bearing System

被引：22

作者：

Chen, Shyh-Leh ^{[1
]}

机构：

[1] Natl Chung Cheng Univ, Dept Mech Engn, Chiayi 621, Taiwan

来源：

IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY | 2011年 / 19卷 / 03期

关键词：

Active magnetic bearing; current-controlled mode; nonaffine; quadratic state feedback; smooth control; three-pole;

D O I：

10.1109/TCST.2010.2048903

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this study, a class of smooth feedback controllers is proposed for the stabilization of a three-pole active magnetic bearing (AMB) system. The three-pole AMB system is strongly nonlinear and nonaffine. Conventional controllers are nonsmooth and complicated, which is difficult for implementation and further study. The proposed smooth controllers are designed utilizing a linear transformation on the system inputs (coil currents). As a result, simple smooth controllers, such as quadratic state feedback controller, can be obtained. The domain of attraction of the origin under the smooth controller is estimated. The proposed smooth controller is verified through both numerical and experimental results.

引用

页码：615 / 621

页数：7

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