离散模糊自适应滑模控制在磁轴承中的应用  

Application of Discrete Fuzzy Self- Adaptation Sliding Mode Control in Magnetic Bearing

作　　者：孙冬梅[1] 徐海鹏[1] 范文[1] 熊鑫[1] 曾理[1] 

机构地区：[1]南京工业大学自动化与电气工程学院,南京211816

出　　处：《轴承》2015年第8期5-8,共4页Bearing

基　　金：国家自然科学基金项目(51277092);江苏省科技厅工业科技支撑计划项目(BE2011188)

摘　　要：针对主动磁轴承-转子系统在运行中存在的不平衡扰动和非线性干扰问题,结合主动磁轴承-转子系统工程化的需要,提出了一种离散模糊自适应滑模控制的方案,建立了4自由度径向主动磁轴承数学模型,设计了离散非线性跟踪微分器,对磁轴承-转子系统进行仿真。结果表明,该系统的不平衡扰动和非线性干扰得到了抑制,实现了系统的高精度鲁棒控制。In view of unbalance disturbance and nonlinear disturbance problem about active magnetic bearing -rotor system during operation,a discrete fuzzy self -adaptation sliding mode control scheme is presented combining with en-gineering need of active magnetic bearing -rotor system.The 4 -freedom mathematical model is established for radial active magnetic bearing.The discrete nonlinear tracking differentiator is designed,and the magnetic bearing -rotor sys-tem is simulated.The results show that the unbalance disturbance and nonlinear disturbance of system is suppressed, and the high precision robust control of system is realized.

关 键 词：主动磁轴承 滑模控制 抑制干扰 

分 类 号：TH133.31[机械工程—机械制造及自动化] TP391[自动化与计算机技术—计算机应用技术]