Computer simulation of fault current characteristics in 275 kV class YBCO power cable

S. Sato, X. Wang, Hiroshi Ueda, A. Ishiyama, M. Yagi, S. Mukoyama, T. Saitoh, Y. Aoki, N. Fujiwara

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In Japan, the development of a 275 kV class YBCO power cable was started in 2008 with the support of the New Energy and Industrial Technology Development Organization (NEDO). In the designing of 275 kV YBCO power cable, the thickness of insulator is required to be 26 mm. Thus, in order to design the 275 kV YBCO power cable, it is important to estimate the thermal diffusion through the electrical insulation layer for designing the high-voltage YBCO power cable. Furthermore, YBCO power cables might be subjected to short-circuit fault currents that are 10-30 times a normal operating current. Therefore, in order to ensure stability and feasibility of superconducting power cables, we need to investigate the thermal characteristics and current distribution in the cable in the normal and fault conditions. The objective of this study is to investigate the thermal characteristics and dielectric performance in 275 kV class power cables. We carried out experiments on dummy cables in a steady state to clarify the distribution of temperature. In order to estimate the thermal conductivity and the heat capacity of the insulation layer, we performed numerical simulations using a developed computer program on the basis of the 3D finite element method. We also measured a tanδ and permittivity of an insulation layer in order to investigate the dielectrical performance.

Original languageEnglish
Pages (from-to)1572-1575
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume470
Issue number20
DOIs
Publication statusPublished - Nov 1 2010
Externally publishedYes

Fingerprint

Electric fault currents
cables
Cables
computerized simulation
Computer simulation
Insulation
insulation
energy technology
electrical insulation
dummies
Thermal diffusion
short circuits
thermal diffusion
estimates
current distribution
Short circuit currents
Specific heat
Computer program listings
high voltages
Thermal conductivity

Keywords

  • FEM
  • Over-current
  • YBCO coated conductor
  • YBCO superconducting cable

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Electronic, Optical and Magnetic Materials

Cite this

Computer simulation of fault current characteristics in 275 kV class YBCO power cable. / Sato, S.; Wang, X.; Ueda, Hiroshi; Ishiyama, A.; Yagi, M.; Mukoyama, S.; Saitoh, T.; Aoki, Y.; Fujiwara, N.

In: Physica C: Superconductivity and its Applications, Vol. 470, No. 20, 01.11.2010, p. 1572-1575.

Research output: Contribution to journalArticle

Sato, S, Wang, X, Ueda, H, Ishiyama, A, Yagi, M, Mukoyama, S, Saitoh, T, Aoki, Y & Fujiwara, N 2010, 'Computer simulation of fault current characteristics in 275 kV class YBCO power cable', Physica C: Superconductivity and its Applications, vol. 470, no. 20, pp. 1572-1575. https://doi.org/10.1016/j.physc.2010.05.164
Sato, S. ; Wang, X. ; Ueda, Hiroshi ; Ishiyama, A. ; Yagi, M. ; Mukoyama, S. ; Saitoh, T. ; Aoki, Y. ; Fujiwara, N. / Computer simulation of fault current characteristics in 275 kV class YBCO power cable. In: Physica C: Superconductivity and its Applications. 2010 ; Vol. 470, No. 20. pp. 1572-1575.
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