Loss Characteristic Analysis of HTS DC Power Cable Using LCC Based DC Transmission System

The zero resistance of superconducting material is observed only with a DC current, while transmission loss occurs with an AC current. Power converters use electronic devices which generate harmonic currents due to their high switching frequency. The authors expect that harmonic currents also influe...

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Veröffentlicht in:	IEEE transactions on applied superconductivity 2012-06, Vol.22 (3), p.5801304-5801304
Hauptverfasser:	KIM, Jin-Geun, KIM, Sung-Kyu, PARK, Minwon, YU, In-Keun, LEE, Haigun, KIM, Young-Gyun, KIM, Hak-Man, WON, Yong-Jin, JEONG, Kyu-Won, YANG, Byeongmo
Format:	Artikel
Sprache:	eng
Schlagworte:	AC loss Alternating current Applied sciences Circuit properties Direct current Electric connection. Cables. Wiring Electric, optical and optoelectronic circuits Electrical engineering. Electrical power engineering Electronic circuits Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Exact sciences and technology Harmonic analysis Harmonics High temperature superconductors HTS HVDC HVDC transmission Inverters power cable Power cables Power converters Power electronics, power supplies Signal convertors Superconducting cables Superconductivity Switching Thyristors Transmission loss Various equipment and components
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Zusammenfassung:	The zero resistance of superconducting material is observed only with a DC current, while transmission loss occurs with an AC current. Power converters use electronic devices which generate harmonic currents due to their high switching frequency. The authors expect that harmonic currents also influence the losses in the superconducting DC power cables of a DC transmission system. The authors have developed a miniaturized superconducting DC transmission system with 12 thyristors based AC/DC converter and a 2 m length superconducting cable connected to the DC side between two converters. The capacity of the converter is 20 kW and the critical current of the HTS DC power cable is 140 A. In this paper, the HTS DC power cable loss characteristics were anal- ysed by the fabricated home-made thyristor converter system.
ISSN:	1051-8223 1558-2515
DOI:	10.1109/TASC.2012.2187770