经典控制理论在电磁轴承系统控制中的应用

An Application of Classical Control Theory on Active Magnetic Bearing System

本文叙述了应用经典控制理论中的根轨迹校正方法对电磁轴承系统进行动态特性校正的设计过程．电磁轴承系统存在的右端极点是系统本质不稳定的主要原因，本文提出的图形校正方法不仅可以解决电磁轴承系统控制器的设计问题，而且也是对经典控制理论中动态指标图形校正法的一个补充．

The design process is recounted in this paper that the active character of the rotor system surported by active magnetic bearings (AMBs) is adjusted with the root locus in classical control theory. One ofthe key cases of unstability for the bearing-rotor system is that there is a right pole in complex plane. Andusing the method can not only solve the problems in the design process on the system stability, but also concern the provement for the picture adjustment method in classical control theory.