報告書番号

W00044

タイトル（和文）

超電導磁気遮へい型限流器の基礎検討 -磁気遮へい体の評価と60kV級限流器用限流ユニットの試設計-

タイトル（英文）

Study on magnetic shielding type superconducting fault current limiter - Evaluation of magnetic shielded cylinder and trial design of limiting unit for 60kV class fault current limiter

概要 （図表や脚注は「報告書全文」に掲載しております）

超電導電力システムおよび現用系統において短絡電流を抑制するための限流器の開発が望まれている。当研究所では、Bi2212厚膜を磁気遮へい体とした60kV級超電導磁気遮へい型限流器の基礎的な検討を進めてきた。 今回、超電導磁気遮へい体における局部的な超電導特性低下の通電特性への影響とその評価手法を明らかにし、これらの成果をもとに、60kV級限流器は拡張性、開発コストの低減の観点からユニット化した限流器の直並列構成として、その限流ユニットを試設計した。

概要 （英文）

Electric power demands are increasing, thus the expansion of power systems is expected and, the fault current is increasing accordingly. It is one of the most important problem that prevent quenching caused by over currents for the superconducting power applications which would be introduced in future. As the protection of power systems from the fault currents and the protection of the superconducting power applications from quenching are very important, it is needed to develop fault current limiters. We have been studying on a magnetic shielding type superconducting fault current limiter using Bi2212 thick film cylinder.In the superconductive magnetic shielding cylinder that had weak points, we investigated current-carrying characteristics and developed a detecting technique of weak points. We had conceptual design of 60kV class superconducting fault current limiter based on these results. The limiter was constructed with unit limiters that arranged serial parallel.

報告者

キーワード