NDLI: Quench developing process of HTS tapes under sinusoidal over-currents

Content Provider	IEEE Xplore Digital Library
Author	Yusheng Zhou Qingshuo Song Fang Guo Jingdong Li Yuejin Tang
Copyright Year	2002
Abstract	In power systems, superconducting electric equipments inevitably suffer all kinds of dynamic processes, such as short-circuit fault. Thus they must undergo all kinds of large short-circuit currents, imbalanced currents, which might make superconducting equipments transiting from superconducting state to normal state. In this paper, the over-current faults in power systems are simulated, and a lot of experimental data are obtained, which show quench processes of HTS tapes under sinusoidal over-currents with different amplitudes. Through analysing these data in 2 cycles, the developing processes of normal state in HTS tapes are analyzed and explained. The relations of heat affecting quench developing processes are discussed, and the developing characteristics of normal state in HTS tapes are presented. Firstly, HTS tape under sinusoidal over-currents has better recovery feature when the amplitude of over-current is under two times of the critical current. Secondly, normal resistance develops rapidly as the amplitude of over-current is over three times of the critical current. Finally, quench developing is affected by liquid nitrogen cooling.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1651
Ending Page	1654
Page Count	4
File Size	186028
File Format	PDF
ISSN	10518223
Volume Number	15
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	High temperature superconductors Power system simulation Power system dynamics Superconducting films Power system faults Critical current Power system analysis computing Data analysis Nitrogen Cooling superconducting power systems Quench development sinusoidal over-current
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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