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磁浮轴承是一种依靠电磁力支承转子的新型无接触轴承，与传统油润滑轴承相比，具有许多优越性。介绍了磁浮轴承的基本原理和结构，在建立磁浮轴承一对径向定位电磁铁单自由度数学模型的基础上，对该不稳定系统进行了ＰＩＤ补偿控制，研究了控制器参数对系统稳定性的影响。最后提出在高速旋转机械的应用中需解决的主要问题。
Maglev bearings are a new type of contactless bearing that relies on electromagnetic force to support the rotor. Compared with the traditional oil-lubricated bearings, Maglev bearings have many advantages. The basic principle and structure of the magnetic bearing are introduced. Based on the mathematical model of a single freedom degree of a pair of radial positioning electromagnets of the magnetic bearing, the PID compensation control of this unstable system is carried out. The influence of the controller parameters on the system stability Impact. Finally, the main problems to be solved in the application of high speed rotating machinery are put forward.