Parameter Design and Static Performance Analysis of a Novel Axial Magnetic Bearing for Maglev Wind Generators

Abstract:

As an important component of maglev wind generators, magnetic bearing should possess the merits of small volume, light weight, lower consumption and so on. A novel low-loss axial hybrid magnetic bearing (HMB) is proposed in this paper, its structure and operation principle are introduced, and the process of producing suspension force is elaborated. Based on equivalent magnetic circuit method, magnetic circuit models of PM and control coil are analyzed and established to deduce the quotation of axial levitation force. The accuracy and the reasonableness of proposed low-loss axial HMB are analyzed and validated by using finite element method (FEM), and the comparison between theoretical calculation and FEM is given, which indicates the proposed HMB exhibits good dynamic response and easy control.

• Periodical: Applied Mechanics and Materials (Volume 703)
• Pages: 421-424
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.703.421
• Online since: December 2014
• Authors: Jin Yue Dong*, Yu Xin Sun, Huang Qiu Zhu
• Keywords: Equivalent Magnetic Circuit Method, FEM, Hybrid Magnetic Bearing, Maglev Wind Generator, Structure Parameter Design

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