Conveners
Wed-Af-Po.12 - Power Supplies
- Hongyu Bai (National High Magnetic Fied Laboratory)
- Juan Bascunan (Massachusetts Institute of Technology)
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Vyacheslav Solovyov (Brookhaven Technology Group)02/07/2025, 14:30Poster
Supplying high current to a superconducting magnet incurs significant conduction losses through current leads. Due to the limitations imposed by the Wiedemann-Franz Law, the minimum loss is independent of the lead material and is 45 W per 1,000 A of DC current.
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Here we propose and demonstrate a synchronous rectifying DC current drive with no thermal linkage between room temperature and... -
Bradley Leuw02/07/2025, 14:30Poster
OpenStar is building a levitating dipole reactor (LDR), following in the footsteps of LDX and RT-1. In our quest to achieve fusion we are building Junior; an assembly of non-insulated (NI) high temperature superconducting (HTS) pancake coils weighing 500 kg operating at 1.44 kA and a peak field of 5.6 T.
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An enabling step for the LDR is developing an integrated power supply system which has... -
Min Zhang (University of Strathclyde)02/07/2025, 14:30Poster
The aviation industry has committed to a long-term global goal of net-zero carbon emissions by 2050. Zero Emission Sustainable Transportation 1 (ZEST1), which was funded by UK's Aerospace Technology Institute and consorted by 10 partners led by Airbus, aims to accelerate technology breakthroughs to enable zero emission commercial aircraft by 2030. Within the consortium, the University of...
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Tianming Liu (University of Science and Technology of China)02/07/2025, 14:30Poster
Converters composed of thyristor full bridges are commonly used to feed superconducting coils and test magnets. Since magnets mostly operate in the steady state, converters under symmetric firing generate significant reactive power. In this paper, a design of the 0°/-180°phase-shift converter is proposed with asymmetric firing to reduce fundamental reactive power, and the even harmonics...
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Dr Can Wang (Hefei Institutes of Physical Science, Chinese Academy of Sciences)02/07/2025, 14:30Poster
The 42-MW highly stabilized power supply, developed by the High Magnetic Field Laboratory, Chinese Academy of Sciences (CHMFL), successfully energized a newly designed water-cooled resistive magnet, achieving a world-record magnetic field of 42.02 T in September 2024. This power supply system is composed of a newly developed 14-MW power supply in parallel with a pre-existing 28-MW unit. The...
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Tonghai Ding (Huazhong University of Science and Technology)02/07/2025, 14:30Poster
The high voltage power supply system of the pulsed high magnetic field facility at Wuhan National High Magnetic Field Center (WHMFC) will be upgraded to 167 MJ capacitor banks with 73 modules for 27 magnet experimental stations in 5 years. The capacitor bank power supply system and all magnet experimental stations are located on the second and first floors of the same building (Pulsed...
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Can Jiang (Hubei University of Science and Technology)02/07/2025, 14:30Poster
This paper presents the design of a high-voltage power supply based on insulated core transformer, specifically tailored for electron irradiation accelerators to meet the demands of irradiation processing applications. The segmented magnetic core structure, however, inevitably leads to leakage issues, complicating the design of this high-voltage power supply. To develop a high-performance...
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