Development of a new protection device for high temperature superconducting power cable

Author

Yang, Jun ; Zhang, Zhe ; Yin, Xianggen

Author_Institution

Dept. of Electr. Eng., Wuhan Univ., Wuhan

fYear

2008

fDate

20-24 July 2008

Firstpage

1

Lastpage

5

Abstract

The protection device is the assurance for high temperature superconducting (HTS) cablepsilas safe operation in power grid. The paper introduces a protection device for HTS cable, which provides both functions of protection and monitoring. In this paper, hardware structure of the protection device and the protection scheme are presented, then a thermal balance model of HTS cable on quench is proposed, with which the over-current limit value and thermal accumulation limit value of HTS cable are determined. In order to study the characteristics of HTS cable system and accumulate commercial operation experience of HTS cable system, the device also offers operation-state record of HTS cable, including all the non-electric signals and electric signals. The data on operation shows that the protection device runs well.

Keywords

power cables; power grids; power system protection; superconducting cables; HTS cable system; high temperature superconducting power cable; nonelectric signals; over-current limit value; power grid; protection device; state monitoring; thermal accumulation limit value; thermal balance model; Hardware; High temperature superconductors; Monitoring; Power cables; Power grids; Power system modeling; Power system protection; Superconducting cables; Superconducting transmission lines; Thermal quenching; HTS cable; Protection; Quench; State monitoring;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE

Conference_Location

Pittsburgh, PA

ISSN

1932-5517

Print_ISBN

978-1-4244-1905-0

Electronic_ISBN

1932-5517

Type

conf

DOI

10.1109/PES.2008.4596449

Filename

4596449