自感磁轴承控制器的稳定性研究

T. Mizuno, K. Araki, H. Bleuler
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引用次数: 5

摘要

从自感知主动磁轴承的强镇定角度出发,比较了采用全阶观测器和降阶观测器的控制器。证明了镇定对象的任何基于降阶观测器的控制器都是不稳定的,而基于全阶观测器的控制器是稳定的。讨论了实心磁轴承的自传感悬架。结果表明,通过改变流过磁芯的涡流会使控制器失稳。给出了在实心磁轴承中实现自感悬浮困难的原因。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
On the stability of controllers for self-sensing magnetic bearings
A comparison between the controllers using a full-order observer and the reduced-order observer are made from the viewpoint of strong stabilization in self-sensing active magnetic bearings. It is shown that any reduced-order observer based controller stabilizing the plant is unstable while full-order observer based controllers are stable. The self-sensing suspension in magnetic bearings with solid cores is also discussed. It is shown that the controllers are destabilized by a modification of the eddy currents flowing through the cores. It gives the reason for the difficulty of actual self-sensing suspension in the solid-cored magnetic bearing.
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