Study on Stiffness and Damping Characteristic of Hybrid Magnetic Bearing for High-Speed Electrical Machine

Lin Jing Xiao; Hong Chang Ding

doi:10.4028/www.scientific.net/AMR.338.534

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 338Study on Stiffness and Damping Characteristic of...

Study on Stiffness and Damping Characteristic of Hybrid Magnetic Bearing for High-Speed Electrical Machine

Abstract:

This paper focuses on the stiffness and damping characteristic of hybrid magnetic bearing for high-speed electrical machine. Firstly, it analyzes the structure and working principle of hybrid magnetic bearing, according to the bearing’s magnetic circuit properties, it deduces the equation of the bearing’s magnetic force with displacement and current. Then, combining with the controller parameters it deduces the stiffness and damping equation of magnetic bearing. At last it simulates the stiffness and damping characteristic curve, and the obtained simulation results can give theoretical support for rotor dynamic analysis and modal analysis.

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Periodical:

Advanced Materials Research (Volume 338)

Pages:

534-538

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.338.534

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Online since:

September 2011

Authors:

Lin Jing Xiao, Hong Chang Ding

Keywords:

Control Parameter, Damping, Hybrid Magnetic Bearing, Stiffness

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