NDLI: Cool-Down and Thermal Performance Test for Toroidal Configuration HTS SMES

Content Provider	IEEE Xplore Digital Library
Author	Yeom, H. Hong, Y.J. Kim, H.B. Koh, D.Y. Ko, J.S. Park, S.J.
Copyright Year	2002
Abstract	The high-temperature superconducting (HTS) magnetic energy storage system working temperature is around 20 ~ 30 K because the HTS coils must be cooled below the critical temperature. In this paper, we have designed a system with an operating temperature of 15 K or below for the purpose of full utilization of the HTS wire material, minimization of the hardware dimension, and stable operation. For the cooling, four of 2-stage Gifford-McMahon coolers were used. The cooling system has a short and uniform thermal passage from the cryocooler head to each HTS coil for an effective cooling of HTS coils. The cold head first stage cools the thermal shield and current lead, and the second stage cools the HTS coils. Our full system has a total of 28 double pancake coils forming a toroidal configuration. For this study, we assembled a test set consisting of six dummy double pancake coils for cooling and load tests without charging current. This paper describes the cool-down and the thermal characteristics of the conduction cooling system. The modified cooling method is optimized for cool-down time reduction, and thermal tests were performed with heat loads up to 300 W.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	5700604
Ending Page	5700604
Page Count	1
File Size	790301
File Format	PDF
ISSN	10518223
Volume Number	23
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cooling High temperature superconductors Superconducting coils Resistance heating Superconducting magnetic energy storage toroidal configuration Conduction cooling cool-down high-temperature superconducting (HTS) superconducting magnetic energy storage (SMES)
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Temperature Distribution of Cryogenic Conduction Cooling System for a HTS SMES

A Study on Basic Insulation Characteristics of 2.5 MJ Class Conduction-Cooled HTS SMES

Study of Cryogenic Conduction Cooling Systems for an HTS SMES

Development of a Movable HTS SMES System

Design of HTS Toroidal Magnets for a 5 MJ SMES

Performance of SMES System With HTS Magnet

Temperature Characteristic of a Conduction-Cooled HTS SMES Magnet

An optimal configuration design method for HTS-SMES coils

Design and Performance Results of First Polish SMES

Cool-Down and Thermal Performance Test for Toroidal Configuration HTS SMES

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