Analytical Method of the Analysis of Electromagnetic Circuits of Active Magnetic Bearings for Searching Energy and Forces Taking into Account Control Law

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2020-10-05 DOI:10.1109/KhPIWeek51551.2020.9250138

Gennadii Martynenko

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引用次数: 8

Abstract

The work considers an analytical method for finding expressions of magnetic energy and forces in active magnetic bearings (AMBs), taking into account control laws. Such the expressions should be included into simulations of the rotor dynamics in AMBs. This method is based on constructing equivalent substitution schemes and applying the contour flow method to the analysis of magnetic circuits of AMBs. This allows to take into account scattering fluxes and magnetic resistances of sections of the AMBs magnetic circuits and ensures that the mathematical model is not critical in terms of the occurrence of “zero” gaps and currents. This expands its determination borders to almost the boundaries of the complete air gap. The practical applicability of the method was confirmed by designing the AMB for a laboratory rig of the rotor in a combined passive-active magnetic suspension. The reliability of the proposed method is confirmed by comparing the calculated and experimental force characteristics of the AMB and other data.

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考虑控制律的主动磁轴承电磁回路能量与力搜索分析方法

该工作考虑了一种考虑控制律的寻找主动磁轴承(AMBs)中磁能和力表达式的分析方法。这些表达式应包含在电机转子动力学仿真中。该方法基于构造等效替代方案，并将轮廓流法应用于电磁磁铁磁路分析。这样就可以考虑到AMBs磁路各部分的散射通量和磁阻，并确保数学模型在出现“零”间隙和电流方面不是至关重要的。这将其确定边界扩展到几乎整个气隙的边界。通过对某被动-主动组合磁悬浮转子试验台的电磁轴承设计，验证了该方法的实用性。通过计算结果与试验结果的比较，验证了所提方法的可靠性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)

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