离散模糊自适应滑模控制在磁轴承中的应用

摘要

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.%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。