Progress Toward a 10-kA Superconducting Power Supply for Levitated Dipole Reactors

IF 1.8 3区物理与天体物理 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Applied Superconductivity Pub Date : 2026-08-01 Epub Date: 2026-01-16 DOI:10.1109/TASC.2026.3654477

Bradley Leuw;Rodney A. Badcock;Eleanor V. W. Chambers;Joshua P. M. Ellingham;Piet Guersen;Kent Hamilton;Joseph Jones;Matt Lynch;Jack Morris;Les Meadows;James H. P. Rice;Mohammad Siamaki;Sam Schimanski;Joe Todd;Sriharsha Venuturumilli;Ratu C. Mataira

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引用次数: 0

Abstract

OpenStar Technologies is a private fusion company in New Zealand, developing a fusion reactor based on the levitated dipole. The levitated dipole has a stable magnetic configuration, which provides the basis for the design of a fusion concept. Levitated dipole-based fusion reactors will require large-scale high-field high temperature superconductor (HTS) magnets operating with consistent “quasi-persistent” current while levitating. Quasi-persistent currents in levitating magnets can only be supplied by on-board power supplies that continuously replenish the energy lost from magnet operation. OpenStar has designed, built, and validated an HTS rectifier which to date has charged a 0.53 H non-insulated HTS magnet to 824 A. The initial charging of this magnet to 180 kJ over 60 hours demonstrates the first integration of a large scale HTS magnet with an embedded HTS rectifier. In October 2024, this enabled OpenStar to reach the milestone of first plasma.

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用于悬浮偶极子反应堆的10ka超导电源的研究进展

OpenStar Technologies是新西兰的一家私营核聚变公司，正在开发一种基于悬浮偶极子的核聚变反应堆。悬浮偶极子具有稳定的磁构型，为设计核聚变概念提供了基础。悬浮式偶极子核聚变反应堆将需要大规模高场高温超导体（HTS）磁体在悬浮时以一致的“准持久”电流运行。悬浮磁体中的准持久电流只能由机载电源提供，该电源不断补充磁体运行时损失的能量。OpenStar设计、制造并验证了一种高温超导整流器，迄今为止，该整流器已将0.53 H的非绝缘高温超导磁铁充电至824 a。该磁体在60小时内初始充电至180 kJ，证明了大规模高温超导磁体与嵌入式高温超导整流器的首次集成。2024年10月，这使得OpenStar达到了第一个等离子体的里程碑。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Applied Superconductivity 工程技术-工程：电子与电气

CiteScore

3.50

自引率

33.30%

发文量

650

审稿时长

2.3 months

期刊介绍： IEEE Transactions on Applied Superconductivity (TAS) contains articles on the applications of superconductivity and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Large scale applications include magnets for power applications such as motors and generators, for magnetic resonance, for accelerators, and cable applications such as power transmission.