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建立了径向四自由度磁轴承系统状态方程 ,介绍了采用最优控制理论中线性二次型方法设计磁轴承集中和分布参数控制器的方法和步骤 ,并用MATLAB语言进行了仿真比较 .仿真和实验结果表明 :磁轴承转子在 6 00 0 0rpm以下运行 ,基于最优状态反馈控制理论设计的控制器 ,忽略各自由度之间的耦合 ,用分散控制策略设计的磁轴承控制系统 ,基本满足磁轴承性能要求 .
The state equations of a radial four degrees of freedom magnetic bearing system are established. The methods and steps for designing a centralized and distributed parameter controller of a magnetic bearing using the linear quadratic method in the optimal control theory are introduced. The simulation is carried out by using MATLAB language The experimental results show that the rotor of the magnetic bearing is operated under 60000rpm, the controller designed based on the optimal state feedback control theory, the coupling between the degrees of freedom is ignored, and the magnetic bearing control system designed by decentralized control strategy basically meets the requirements of magnetic Bearing performance requirements.