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http://dx.doi.org/10.9714/psac.2010.12.1.061

A Study on the Equivalent Thermal Circuit for HTS Power Cable  

Lee, Su-Kil (LS전선(주) 기술개발부문)
Lee, Heung-Jae (광운대학교 전기공학과)
Publication Information
Progress in Superconductivity and Cryogenics / v.12, no.1, 2010 , pp. 61-65 More about this Journal
Abstract
To develop the thermal analysis method for the thermal behavior of HTS power cable system, cooled with sub-cooled liquid nitrogen, new thermo dynamic model for HTS cable system is introduced. The introduced thermal model is mainly modified from the thermal circuit following to IEC60287 for underground power cable systems such as XLPE or paper wrapped insulation cables. The thermal circuits for HTS cables are similar to the forced cooled underground cable system but the major thermal parameters and the configuration is apparently different to the normal cable systems so there has been no proposals in this field of analysing method. In this paper, 154kV HTS cable system has been introduced as an aspects of thermal models and a thermal circuit is proposed for the fundamentals on the dynamic rating systems for the HTS cable system. By using the thermal circuit developed in this paper, the optimal controls on the sub-cooling system's capacity become possible and it is expected to make the efficiency of HTS cable higher than conventional static controls.
Keywords
HTS (High temperature superconductor); power cable; sub-cooled liquid nitrogen; cryogenic system;
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