A 0.5 kWh flywheel energy storage system using a high-Tc superconducting magnetic bearing

被引：62

作者：

Miyagawa, Y ^{[1
]}

Kameno, H ^{[1
]}

Takahata, R ^{[1
]}

Ueyama, H ^{[1
]}

机构：

[1] Koyo Seiko Co Ltd, Osaka 5820023, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1999年 / 9卷 / 02期

关键词：

D O I：

10.1109/77.783466

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A flywheel rotor having a main shaft, two flywheel disks and one permanent magnet for a SMB (superconducting magnetic bearing) was designed and manufactured. The flywheel was made of CFRP material which is light weight and has high tensile strength. The permanent magnet was hooped by CFRP in order to prevent centrifugal bursting. The rotor was levitated by a SMB in the axial direction. The radial vibration of the rotor was damped by active magnetic bearings. The superconducting magnetic bearing was made of YBa2Cu3O7-X which had a strong pinning force. The whole rotor system was stably accelerated up to 30,000 rpm by an induction motor in a vacuum chamber, and then its energy storage value reached 479 Wh. In this paper, the rotor design, bearing and rotational properties of the rotor are discussed.

引用

页码：996 / 999

页数：4

共 5 条

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