Electromagnetic Characteristics Analysis and Experiment Study of Six-pole Radial-axial Active Magnetic Bearing

被引：0

作者：

Zhu H. ^{[1
]}

Wang S. ^{[1
]}

机构：

[1] School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu Province

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2020年 / 40卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Bearing capacity; Force-current characteristic; Magnetic bearing; Nonlinear; Six-pole;

D O I：

10.13334/j.0258-8013.pcsee.190393

中图分类号：

学科分类号：

摘要：

In this paper, a new type of six-pole radial-axial active magnetic bearing (AMB) driven by an three-phase inverter was presented. Compared with the three-pole radial-axial AMB, the six-pole radial-axial AMB has the advantages of large bearing capacity, no electromagnetic cross-coupling between radial two degrees of freedom and so on. Firstly, the basic structure, magnetic circuits and working principle of the six-pole radial-axial AMB were analyzed in detail, and its mathematical models were deduced. Secondly, the electromagnetic characteristics and the maximum bearing capacity were simulated by finite element method. In comparison with the analysis results of the three-pole radial-axial AMB, the bearing capacity of six-pole radial-axial AMB is increased by about 33%, and there is no electromagnetic cross-coupling between radial two degrees of freedom, and the nonlinear problem of force-current characteristic is solved. Thirdly, the validation experiment and static suspension experiment based on the prototype were also conducted to verify the superior performance of the six-pole radial-axial AMB. Experimental results show that the performance of the proposed six-pole radial-axial AMB is superior to that of the three-pole radial-axial AMB, which verifies the accuracy of the theoretical analysis. © 2020 Chin. Soc. for Elec. Eng.

引用

页码：1653 / 1662

页数：9

共 20 条

[1] Zhu H., Ding S., Modeling for AC hybrid magnetic bearings considering edge effect, Proceedings of the CSEE, 36, 23, pp. 6528-6535, (2016)
[2] Zhu H., Ju J., Development of three-pole magnetic bearings and key technologies, Proceedings of the CSEE, 34, 9, pp. 1360-1367, (2014)
[3] Xu S., Fang J., A novel conical active magnetic bearing with claw structure, IEEE Transactions on Magnetics, 50, 5, (2014)
[4] Zhou L., Li L., Modeling and identification of a solid-core active magnetic bearing including eddy currents, IEEE/ASME Transactions on Mechatronics, 26, 6, pp. 2784-2792, (2016)
[5] Zhu H., Shen Y., Wu Q., Et al., Modeling and control system for AC hybrid magnetic bearing, Proceedings of the CSEE, 29, 18, pp. 100-105, (2009)
[6] Ji S., Zhang W., Huang Z., Et al., Parameter design and optimization of AC active magnetic bearing, Proceedings of the CSEE, 31, 21, pp. 150-158, (2011)
[7] Liu C., Deng Z., Cao X., Et al., Decoupling control for active magnetic bearing high-speed flywheel rotor based on mode separation and state feedback, Proceedings of the CSEE, 35, 22, pp. 5899-5907, (2015)
[8] Le Y., Fang J., Wang K., Design and optimization of a radial magnetic bearing for high-speed motor with flexible rotor, IEEE Transactions on Magnetics, 51, 6, (2015)
[9] Zhang W., Zhu H., Control system design for a five-degree-of-freedom electrospindle supported with AC hybrid magnetic bearings, IEEE/ASME Transactions on Mechatronics, 20, 5, pp. 2525-2537, (2015)
[10] Fang J., Xu S., Effects of eddy current in electrical connection surface of laminated cores on high- speed PM motor supported by active magnetic bearings, IEEE Transactions on Magnetics, 51, 11, (2015)

← 1 2 →