Modeling and Design of 3-DOF Magnetic Bearing for High-Speed Motor Including Eddy-Current Effects and Leakage Effects
Modeling and Design of 3-DOF Magnetic Bearing for High-Speed Motor Including Eddy-Current Effects and Leakage Effects
复制标题
高速电机三自由度磁力轴承的建模和设计（包括涡流效应和泄漏效应）
DOI：
10.1109/tie.2016.2530778
复制
发表时间：
2016-02
影响因子：
7.7
通讯作者：
Han Bangcheng
中科院分区：
文献类型：
--
作者：
Le Yun;Sun Jinji;Han Bangcheng
永磁偏置三自由度磁轴承具有推力盘小、风阻小、体积小等优点，已逐步应用于高速电机。为了预测三自由度磁悬浮轴承的性能并指导其设计，提出了考虑涡流效应和泄漏效应的精确解析模型。在三自由度磁悬浮轴承中同时采用实心和叠层磁芯，因此对不同磁芯材料的涡流效应分别建模。根据所提出的模型计算了轴向和径向刚度的频率响应特性。分析结果表明，由于电流的变化而产生的涡流将导致刚度的幅值减小和相位滞后。文中还讨论了泄漏效应对静、动态刚度的影响。此外，涡流效应对泄漏系数的影响也会进一步降低系统的动态刚度。用静态和暂态有限元方法(FEMS)对其刚度进行了研究。最后，设计并制作了样机。有限元计算结果和实验结果验证了分析的正确性。
The 3-degrees of freedom magnetic bearing (3-DOF MB) with permanent-magnet (PM) biased has been applied to high-speed motor progressively for their advantages of small thrust disk, low wind friction loss, and small volume. To predict performance and guide design of the 3-DOF MB, an accurate analytical model including eddy-current effects and leakage effects is proposed. Both the solid and the laminated cores are applied in the 3-DOF MB, and therefore the eddy-current effects in different core materials are modeled separately. The frequency response characteristics of axial and radial stiffnesses are calculated according to the proposed model. The analytical results show that the eddy currents induced due to the changing currents will result in considerable magnitude decrease and phase lag of stiffnesses. The influences of leakage effects on the static and dynamic stiffnesses are also discussed. Furthermore, the leakage coefficients are influenced by the eddy-current effects will further decrease the dynamic stiffnesses. The stiffnesses are also investigated by the static and transient finite-element methods (FEMs). Finally, a prototype is designed and fabricated. The FEM results and experimental results demonstrate the validity of the analysis.
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DOI：
10.1109/tmech.2009.2016656
发表时间：
2010-02
期刊：
IEEE/ASME Transactions on Mechatronics
影响因子：
--
作者：
Lei Zhu;C. Knospe
通讯作者：
Lei Zhu;C. Knospe
影响因子：
4.4
作者：
J. Denk;D. Stoiber;Hans-Georg Kopken;H. Walter
通讯作者：
J. Denk;D. Stoiber;Hans-Georg Kopken;H. Walter
影响因子：
7.7
作者：
T. Baumgartner;R. Burkart;J. Kolar
通讯作者：
T. Baumgartner;R. Burkart;J. Kolar
影响因子：
2.1
作者：
Meeker, DC;Maslen, EH;Noh, MD
通讯作者：
Noh, MD
影响因子：
3.3
作者：
J. S. Rao;R. Tiwari
通讯作者：
J. S. Rao;R. Tiwari