The thermal relay design to improve power system security for the HTS cables in Icheon substation
- Authors
- Lee, Hansang; Yang, Byeong-Mo; Jang, Gilsoo
- Issue Date
- 11월-2013
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- High temperature superconducting (HTS) cable; Thermal relay; Thermal protection; Security
- Citation
- PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, v.494, pp.280 - 285
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
- Volume
- 494
- Start Page
- 280
- End Page
- 285
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/101760
- DOI
- 10.1016/j.physc.2013.04.032
- ISSN
- 0921-4534
- Abstract
- This paper proposes a model for thermal protection relay for the high temperature superconducting (HTS) cables and thermal protection scheme in Icheon substation in Korea. The thermal protection is one of the most important factors to guarantee the reliability of the HTS cable as well as power system security. The superconductivity of the HTS cables, which can be guaranteed by the liquid nitrogen near 70 K, can be threatened by the large fault current. To avoid the overheating in HTS cable and to secure the power system operation with the HTS cable, the thermal protection relay should be considered. To find the optimal thermal-protection scheme, the model for the superconducting power system has been achieved in Icheon substation and the thermal protection scheme has been verified through PSCAD/EMTDC simulation. (C) 2013 Elsevier B.V. All rights reserved.
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