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

Author

Jin-Geun Kim ; Sung-Kyu Kim ; Minwon Park ; In-Keun Yu ; Haigun Lee ; Young-Gyun Kim ; Hak-Man Kim ; Yong-Jin Won ; Kyu-Won Jeong ; Byeongmo Yang

Author_Institution

Dept. of Electr. Eng., Changwon Nat. Univ., Changwon, South Korea

Volume

22

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

5801304

Lastpage

5801304

Abstract

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.

Keywords

AC-DC power convertors; DC transmission networks; power cables; superconducting cables; thyristor convertors; AC current; AC/DC converter; DC current; HTS DC power cable; LCC based DC transmission system; electronic devices; high switching frequency; home-made thyristor converter system; loss characteristic analysis; power 20 kW; power converters; superconducting DC power cables; superconducting DC transmission system; superconducting cable; superconducting material zero resistance; transmission loss; HVDC transmission; Harmonic analysis; High temperature superconductors; Inverters; Power cables; Superconducting cables; Thyristors; AC loss; HTS; HVDC; power cable;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2012.2187770

Filename

6151887