Power Research

Ipsita Das ¹, B. Nageshwar Rao ², J. Sundara Rajan ², S. Seetharamu ², V. V. Rao ¹

Affiliations
1 Cryogenic Engineering Centre, Indian Institute of Technology, Kharagpur, West Bengal - 721302, IN
2 Central Power Reseach Institute, Bangalore - 560080, IN

Abstract

HTS (High Temperature Superconducting) cable has the ability of transmitting electrical power over long distances in an economical way, with improved stability and reliability. HTS Cable also provides a compact and low-loss transmission power line, in comparison with the conventional cable made out of copper or aluminium. The use of HTS tapes facilitates the cable operations with liquid nitrogen cooling system. A wide variety of HTS Cables with various cooling arrangements have been designed and developed. Their performance has been tested to obtain various thermo-hydaraulic and electrical data by installing the cables of different lengths in transmission and distribution networks. This paper reviews the cryogenic cooling aspects of previous and ongoing projects on superconducting cables for electrical power transmission around the world.

Keywords

Cryogenic cooling system, HTS cable, liquid nitrogen, termination

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Ankit Anand ¹, Srikumar Nayek ¹, Abhay Singh Gour ¹, V. V. Rao ¹

Affiliations
1 Cryogenic Engineering Center, IIT Kharagpur – 721302, West Bengal, IN

Abstract

High Temperature Superconductor (HTS) tapes experiences tension, bending and torsion along with stress due to thermal cycling and electromagnetic forces during operation. This combined effect of mechanical forces, moments and stresses can affect the performance of superconducting tape. In this paper investigation of I-V characteristic of Superpower makes 2G HTS stacked tapes under strain.

Keywords

Critical Current, Cryogenic UTM, HTS Tape, Stacked HTS Tape, Strain

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Srikumar Nayek ¹, Ankit Anand ¹, Abhay S. Gour ¹, V. V. Rao ¹

Affiliations
1 Cryogenic Engineering Center, IIT Kharagpur – 721302, West Bengal, IN

Abstract

HTS cables are designed to carry bulk power with high ampacity in superconducting state. These cables require terminal connectors of same ampacity to transfer power from source to load via HTS cable. This paper deals with thermal analysis of 2 kA, 220V DC terminal connector for HTS cable. The ohmic losses were computed and were used as an input for steady state thermal analysis of HTS terminal connector. Based on thermal analysis optimal location of feed through is estimated for thermal stability of HTS cable.

Keywords

Cryogenics, End Termination, Heat Transfer, HTS Cable, FEM

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