ラジアル型超電導磁気軸受の浮上力解析と遮へい電流分布解析

概要

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The superconducting magnetic bearings (SMBs) have been studied for the application to flyweel energy storage systems, where these SMBs are incorporated to support total weight of rotors without contacting them. In designing these SMBs, the levitation force should be reasonably predicted. To predict this force, practical analytical method should be developed. This paper deals with the analysis of levitation force characteristics for practicable radial-type SMBs with multiple superconducting bulks. It was found that. the attenuation of the levitation force due to flux creep and hysteresis of a superconductor assembly, etc. were well explained. This analysis used 'ideal bulk with equivalent thickness' model would be effectively applied to designing of an actual SMBs. We also show the distribution of supercurrent density in radial-type SMB.
社団法人日本機械学会の論文
2001-08-25