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ST177 - Conceptual Study of Superconducting Urban Area Power Systems

Conceptual Study of Superconducting Urban Area Power Systems

Mathias Noe1, Robert Bach2, Werner Prusseit3,
Dag Willén4, Wilfried Goldacker1, Juri Poelchau5 , Christian Linke6

1Karlsruhe Institute of Tecchnology,
Eggenstein-Leopoldshafen, Germany
2Nordkirchen, Germany
3Theva, Ismaning, Germany
4nkt cables, Brøndby, Denmark
5Dr. Poelchau und Partner, Berlin, Germany
6Consentec, Aachen, Germany

ABSTRACT - Efficient transmission, distribution and usage of electricity are fundamental requirements for providing citizens, societies and economies with essential energy resources. It will be a major future challenge to integrate more sustainable generation resources, to meet growing electricity demand and to renew electricity networks. Research and development on superconducting equipment and components have an important role to play in addressing these challenges. Up to now, most studies on superconducting applications in power systems have been concentrated on the application of specific devices like for example cables and current limiters. In contrast to this, the main focus of our study is to show the consequence of a large scale integration of superconducting power equipment in distribution level urban power systems. Specific objectives are to summarize the state-of-the-art of superconducting power equipment including cooling systems and to compare the superconducting power system with respect to energy and economic efficiency with conventional solutions. Several scenarios were considered starting from the replacement of an existing distribution level sub-grid up to a full superconducting urban area distribution level power system. One major result is that in the future a full superconducting urban area distribution level power system could be cost competitive with existing solutions. In addition to that, superconducting power systems offer higher energy efficiency as well as a number of technical advantages like lower voltage drops and improved stability.

Keywords – Electric power, grid, urban distribution level, grid component, superconductivity, high-temperature, HTS, cable, rotating machinery, fault current limiter, SFCL, superconducting magnetic energy storage, SMES

IEEE/CSC & ESAS EUROPEAN SUPERCONDUCTIVITY NEWS FORUM (ESNF), No. 11, January 2010
Submitted December 15, 2009; accepted December 17, 2009. Reference No. ST177; Category 6.