Optimization of an  E3SPreSSO Energy-Extraction System for High-Field Superconducting Magnets

Janne Ruuskanen; Antti Stenvall; Jeroen Van Nugteren; Valtteri Lahtinen

doi:10.1109/TASC.2018.2794457

Optimization of an E3SPreSSO Energy-Extraction System for High-Field Superconducting Magnets

Janne Ruuskanen^*
, Antti Stenvall
, Jeroen Van Nugteren
, Valtteri Lahtinen

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

3 Citations (Scopus)

Abstract

High-temperature superconducting magnets (HTS) suffer from slow quench propagation and have in large fraction high thermal margin. Due to the high thermal margin, quench protection systems (QPS) based on initiating large normal zones, with, e.g., quench protection heaters or CLIQ, are not effective with HTS, and energy extraction is needed. In large magnets, energy extraction with a single dump is not effective and new solutions are looked for. Recently, a concept E 3SPreSSO for HTS magnet protection has been presented in the scope of European project EuCARD-2. E 3 SPreSSO utilizes a series-connected bifilar HTS or LTS coil. In this work, we present a methodology to design QPS based on E 3 SPreSSO for HTS magnets. Then, we utilize this methodology to design and analyze the suitability of such QPS for a 20 T HTS accelerator dipole.

Original language	English
Article number	4700805
Journal	IEEE Transactions on Applied Superconductivity
Volume	28
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2018.2794457
Publication status	Published - 1 Apr 2018
Publication type	A1 Journal article-refereed

Keywords

Accelerator magnets
HTS cables
modeling
quench protection

Publication forum classification

Publication forum level 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/TASC.2018.2794457

Cite this

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title = "Optimization of an E3SPreSSO Energy-Extraction System for High-Field Superconducting Magnets",

abstract = "High-temperature superconducting magnets (HTS) suffer from slow quench propagation and have in large fraction high thermal margin. Due to the high thermal margin, quench protection systems (QPS) based on initiating large normal zones, with, e.g., quench protection heaters or CLIQ, are not effective with HTS, and energy extraction is needed. In large magnets, energy extraction with a single dump is not effective and new solutions are looked for. Recently, a concept E 3SPreSSO for HTS magnet protection has been presented in the scope of European project EuCARD-2. E 3 SPreSSO utilizes a series-connected bifilar HTS or LTS coil. In this work, we present a methodology to design QPS based on E 3 SPreSSO for HTS magnets. Then, we utilize this methodology to design and analyze the suitability of such QPS for a 20 T HTS accelerator dipole.",

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AU - Stenvall, Antti

AU - Van Nugteren, Jeroen

AU - Lahtinen, Valtteri

N1 - INT=eee,"Van Nugteren, Jeroen"

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AB - High-temperature superconducting magnets (HTS) suffer from slow quench propagation and have in large fraction high thermal margin. Due to the high thermal margin, quench protection systems (QPS) based on initiating large normal zones, with, e.g., quench protection heaters or CLIQ, are not effective with HTS, and energy extraction is needed. In large magnets, energy extraction with a single dump is not effective and new solutions are looked for. Recently, a concept E 3SPreSSO for HTS magnet protection has been presented in the scope of European project EuCARD-2. E 3 SPreSSO utilizes a series-connected bifilar HTS or LTS coil. In this work, we present a methodology to design QPS based on E 3 SPreSSO for HTS magnets. Then, we utilize this methodology to design and analyze the suitability of such QPS for a 20 T HTS accelerator dipole.

KW - Accelerator magnets

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