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首页> 外文期刊>Electric Power Applications, IET >Analysis and design method of a combined radial–axial magnetic bearing based on asymmetric factor
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Analysis and design method of a combined radial–axial magnetic bearing based on asymmetric factor

机译:基于不对称因素的径向-轴向组合电磁轴承分析与设计方法

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摘要

Combined radial-axial magnetic bearings (MBs) use a common bias magnetic circuit to provide radial and axial bias magnetic flux. Different from separate MBs, there is a constraint relation between the radial and axial bias flux. Meanwhile, there is also a constraint relationship between the radial and axial maximum bearing capacity. Therefore, the design method for separated MB is not suitable for a combined radial-axial MB (CRAMB). In this study, a design method of the CRAMB based on an asymmetric factor was proposed. The definition of the asymmetric factor was proposed. In order to avoid the radial and axial magnetic flux into the weak magnetic field and saturation region, the optimum range of the asymmetric factor is analysed. The influence of the asymmetry factor on stiffness is analysed; the prototype designed by this method can run stably. The validity and accuracy of the design method are verified by experimental results.
机译:组合式径向-轴向磁轴承(MBs)使用公共偏置磁路提供径向和轴向偏置磁通量。与单独的MB不同,径向和轴向偏置通量之间存在约束关系。同时,径向和轴向最大承载能力之间也存在约束关系。因此,用于分离的MB的设计方法不适用于组合径向轴MB(CRAMB)。提出了一种基于不对称因子的CRAMB设计方法。提出了不对称因子的定义。为了避免径向和轴向磁通量进入弱磁场和饱和区域,分析了不对称因子的最佳范围。分析了不对称因素对刚度的影响。用这种方法设计的原型可以稳定运行。实验结果验证了该设计方法的有效性和准确性。

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