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Application of Thermal Network Model for Designing Superconducting Cable Components

High Temperature Superconductors (HTS) have the advantage of carrying direct current at zero resistance when operated below their
critical temperature. At lower temperatures, these superconductors have the capability of carrying higher current densities. HTS power
systems have applications in electrical power grids, defense, naval, aircraft, and industrial sectors. HTS devices enable higher efficiency
while providing resiliency and reliability to power systems. This study developed models for superconducting cable system with two
terminations, HTS cable, and cryo-cooler. The models combined electrical and cryogenic thermal aspects of the superconducting cable system.
Several operating scenarios were simulated. Some contingencies such as cryo-cooler failure, circulation system failure were also modeled. A
comparison of AC and DC cables was also analyzed in the system. The simulation models help in the analysis of the effects of system failure
and to estimate the time required to turn off the system before the cable is affected. The results indicate that most of the heat load into
the system is due to the terminations which are the interfaces between the superconducting cable and the room temperature components. In the
contingency situations such as cryo-cooler failure, the time required to turn-off the system is several minutes. These results help us
protect the cable from catastrophic damage during unexpected situations. Through these models, it is possible to calculate the maximum
current that can be run through the system before the cable reaches a potential quench. / A Thesis submitted to the Department of Electrical and Computer Engineering in partial fulfillment of the
requirements for the degree of Master of Science. / Fall Semester 2017. / November 14, 2017. / Includes bibliographical references. / Sastry V. Pamidi, Professor Directing Thesis; Simon Foo, Committee Member; Pedro Moss, Committee
Member.

Identiferoai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_604974
ContributorsIndrakanti, Shiva Charan (author), Pamidi, Sastry V. (professor directing thesis), Foo, Simon Y. (committee member), Moss, Pedro L. (committee member), Florida State University (degree granting institution), FAMU-FSU College of Engineering (degree granting college), Department of Electrical and Computer Engineering (degree granting departmentdgg)
PublisherFlorida State University
Source SetsFlorida State University
LanguageEnglish, English
Detected LanguageEnglish
TypeText, text, master thesis
Format1 online resource (60 pages), computer, application/pdf

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