An augmented circuit model for magnetic bearings including eddy currents, fringing, and leakage
An augmented circuit model for magnetic bearings including eddy currents, fringing, and leakage
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DOI：
10.1109/20.508385
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发表时间：
1996-07-01
影响因子：
2.1
通讯作者：
Noh, MD
中科院分区：
文献类型：
--
作者：
Meeker, DC;Maslen, EH;Noh, MD
磁轴承通常是用磁路理论来设计的。然而，当制造这些轴承时，通常的电路理论公式中没有包括的效应对轴承的性能有很大的影响，电路理论方法中两个重要的误差来源是忽略泄漏和边缘效应以及忽略涡流效应。本文建立了一个包含涡流、漏磁和边缘效应的扩展电路模型，该模型的电阻抗预测与典型磁力轴承的实验数据吻合良好。
Magnetic bearings are often designed using magnetic circuit theory. When these bearings are built, however, effects not included in the usual circuit theory formulation have a significant influence on bearing performance, Two significant sources of error in the circuit theory approach are the neglect of leakage and fringing effects and the neglect of eddy current effects, This work formulates an augmented circuit model in which eddy current and flux leakage and fringing effects are included, Electrical impedance predictions from the model are found to be in good agreement with experimental data from a typical magnetic bearing.