平面精密磁悬浮轴承的悬浮位置控制  

Suspension position control of precise planar magnetic bearing

作　　者：周振雄[1,2] 曲永印[1,2] 杨建东[2] 刘德君[1] 

机构地区：[1]北华大学电气信息工程学院,吉林省吉林市132012 [2]长春理工大学机电工程学院,长春130022

出　　处：《控制与决策》2010年第3期437-440,444,共5页Control and Decision

基　　金：国家自然科学基金项目(60772005);吉林省科技引导计划项目(20090549)

摘　　要：介绍了一种新型平面磁悬浮轴承.该轴承采用3套悬浮线圈实现悬浮,3套推力线圈实现水平驱动.针对其悬浮部分具有参数摄动、多变量、非线性、强耦合的特点,提出一种改进的自抗扰控制器,以克服常规自抗扰控制器非线性误差反馈控制律中非线性函数的不平滑性,并提高了控制品质.仿真对比分析和实验结果表明,应用改进的自抗扰控制器后,平面磁轴承悬浮控制系统具有较好的动、静态特性和鲁棒性.A novel planar magnetic suspension bearing is introduced in this paper,which is suspended through three suspension coils and driven in the level through three thrusting coil. As the suspension system of the planar magnetic,suspension bearing is a parameter perturbation,multivariable,nonlinear and strong coupling system,a novel auto-disturbance rejection controller（ADRC） is proposed to improve control character of conventional ADRC by overcoming the rough character of non-linear function in nonlinear state error feedback. The result of simulation and experiment shows that the suspension control system has better dynamic,static and robust characters by using the novel auto-disturbance rejection controller.

关 键 词：磁轴承 解耦 扩张状态观测器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]