An Overview on Passive Magnetic Bearings
An Overview on Passive Magnetic Bearings
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DOI：
10.1109/iemdc47953.2021.9449571
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发表时间：
2021-05
期刊：
影响因子：
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通讯作者：
Timothy Slininger;W. Chan;E. Severson;B. Jawdat
中科院分区：
文献类型：
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作者：
Timothy Slininger;W. Chan;E. Severson;B. Jawdat
磁轴承是用于高速应用（例如飞轮储能系统）的感兴趣的领域，以消除摩擦损失。如恩肖定理所示，通过静态被动磁轴承系统不能实现稳定的悬浮。已经提出了使用主动磁轴承的解决方案，其实现稳定的悬浮，但是在用于主动稳定一个或多个自由度的电流中引起损耗。为了克服这些损失，同时保持稳定的操作，可以利用超导磁轴承创建完全无源架构。本文将回顾关键的无源磁和超导技术，它们的设计和优化方法，为不同的拓扑结构，和现有的工作做联合收割机结合成一个功能稳定的系统。
Magnetic bearings are an area of interest for high speed applications, such as flywheel energy storage systems, to remove friction losses. Stable levitation cannot be achieved through a static passive magnetic bearing system, as indicated by Earnshaw's Theorem. Solutions using active magnetic bearings have been presented which achieve stable levitation, but induce losses in the current used to actively stabilize one or more degrees of freedom. To overcome these losses while retaining stable operation a fully passive architecture can be created utilizing superconducting magnetic bearings. This paper will review the key passive magnetic and superconducting technologies, their design and optimizations methods for different topologies, and existing work done to combine both into a functional stable system.