Cryogenic DC/DC converter for superconducting magnet applications

Abdelrahman Elwakeel; Neville McNeill; Rafael Peña-Alzola; Min Zhang; Weijia Yuan

doi:10.1109/TASC.2022.3160148

Cryogenic DC/DC converter for superconducting magnet applications

Abdelrahman Elwakeel, Neville McNeill, Rafael Peña-Alzola, Min Zhang, Weijia Yuan

Electronic And Electrical Engineering

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Abstract

Recent advances in superconductors have led to their increased application in magnets and a requirement to carry ever-larger currents. This article describes the development and implementation of a cryogenic DC/DC converter for supplying a DC excitation current of 500 A for superconducting magnet applications. Practical aspects are addressed and the rationale behind selecting an interleaved forward converter topology is elucidated. Experimental results are given and a ripple content in the load current of less than 5% is estimated.

Original language	English
Article number	0601005
Number of pages	5
Journal	IEEE Transactions on Applied Superconductivity
Volume	32
Issue number	6
Early online date	22 Mar 2022
DOIs	https://doi.org/10.1109/TASC.2022.3160148
Publication status	Published - 30 Sep 2022

Keywords

cryogenic
DC/DC converter
interleaving
MOSFET
synchronous rectification

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Elwakeel-etal-IEEE-TAS-2022-Cryogenic-DC-DC-converter-for-superconductingAccepted author manuscript, 1.28 MBLicence: Strath_1

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AB - Recent advances in superconductors have led to their increased application in magnets and a requirement to carry ever-larger currents. This article describes the development and implementation of a cryogenic DC/DC converter for supplying a DC excitation current of 500 A for superconducting magnet applications. Practical aspects are addressed and the rationale behind selecting an interleaved forward converter topology is elucidated. Experimental results are given and a ripple content in the load current of less than 5% is estimated.

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Cryogenic DC/DC converter for superconducting magnet applications

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Keywords

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