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Analysis on Current Distribution of Four-Layer HTSC Power Transmission Cable with a Shield Layer 원문보기

Journal of electrical engineering & technology, v.1 no.3, 2006년, pp.308 - 312  

Lim Sung-Hun (Department of Electrical Engineering, Soongsil University)

Abstract ▼ AI-Helper 아이콘AI-Helper

The inductance difference between conducting layers of high-Tc superconducting (HTSC) power transmission cable causes the current sharing of each conducting layer to be unequal, which decreases the current transmission capacity of HTSC power cable. Therefore, the design for even current sharing in H...

주제어

#Current distribution   #High-Tc superconducting power transmission cable   #Inductance difference   #Pitch length   #Shield layer   #Winding direction  

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제안 방법

  • In this paper, we suggested that the shield layer could be contributed to the even current distribution of HTSC power transmission cable. For confirmation of it, we investigated the dependence of the current distribution in the HTSC power transmission cable with a shield layer designed with the same pitch length in all layers on the pitch length and the winding direction. From the numerical analysis, the pitch length where the current distribution difference between the layers was a minimum value could be found in the case of HTSC power cable with a shield layer designed with a specific winding direction.
  • For further analysis for the effect of the shield layer on the current distribution in conducting layers, the current distribution according to the pitch length and the winding direction were investigated for two cases: HTSC cable without a shield layer and HTSC cable with a shield layer. Although one layer can be designed to have a different pitch length from other layers through the adjustment of the pitch length, in this paper, we considered the case that the pitch length in all layers were adjusted with the same value.
  • To confirm it, we investigated the current distribution of conducting layers in HTSC power cable dependent on the pitch length and the winding direction of each layer for two cases: four- layer HTSC power cable with a shield layer and fbur-layer HTSC power cable without a shield layer. Through the analysis from the computer simulations, the current distribution in all conducting layers of HTSC cable could be improved in case that HTSC power cable with the shield layer was designed with the specific pitch length of all layers for each winding direction. It was expected that the results and discussions for HTSC power cable with the shield layer in this paper could be useful for the cable designer to strive to solve the problem of non-uniform current distribution in HTSC power cable.
  • In this paper, we suggested that the shield layer of HTSC power cable, which was originally required for the protection from the electromagnetic phenomenon like the conventional power cable, could be contributed for the improvement of the current distribution of each layer in HTSC power cable with different inductances. To confirm it, we investigated the current distribution of conducting layers in HTSC power cable dependent on the pitch length and the winding direction of each layer for two cases: four- layer HTSC power cable with a shield layer and fbur-layer HTSC power cable without a shield layer. Through the analysis from the computer simulations, the current distribution in all conducting layers of HTSC cable could be improved in case that HTSC power cable with the shield layer was designed with the specific pitch length of all layers for each winding direction.
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참고문헌 (4)

  1. Ji-Kwang Lee, and Guee-Soo Cha, 'AC loss calculation of a multi-layer HTS transmission cable considering the twist of each layer,' IEEE Trans. Appl. Supercond., Vol. 11, no. 1, pp. 2433-2436, March 2001 

    상세보기 crossref

  2. M. Tsuda, A. K. M. Alamgir, Y. Ito, T. Harano, N. Harada, T. Hamajima, M. Ono, and H. Takano, 'Influence of Current Distribution on Conductor Performance in Coaxial Multi-Layer HTS Conductor,' IEEE Trans. Appl. Supercond., Vol. 12, no. 1, pp. 1643-1646, March 2002 

    상세보기 crossref

  3. V. E. Sytnikov, P. I. Dolgosheev, G. G. Svalov, N. V. Polyakova, and D. I. Belij, 'Influence of the multilayer HTS-cable conductor design on the current distribution,' Physica C, Vol. 310, no. 1-4, pp. 387-391, December 1998 

    상세보기 crossref

  4. S. Kruger Olsen, C. Traholt, A. Kuhle, O. Tonnesen, M. Daumling, and J. Ostergaard, 'Loss and Inductance Investigation in a 4-layer Superconducting Prototype Cable Conductor,' IEEE Trans. Appl. Supercond., Vol. 9, no. 2, pp. 833-836, June 1999 

    상세보기 crossref

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