Browse > Article
http://dx.doi.org/10.9714/psac.2011.13.1.017

A Study on AC loss Characteristics of Asymmetric non-inductive coils with Combination of Superconducting wires  

Kim, J.S. (연세대 대학원 전기공학과)
Hwang, Y.J. (연세대 대학원 전기공학과)
Na, J.B. (연세대 대학원 전기공학과)
Choi, S.J. (연세대 대학원 전기공학과)
Kim, Y.J. (연세대 대학원 전기공학과)
Lee, J.H. (연세대 대학원 전기공학과)
Lee, W.S. (연세대 대학원 전기공학과)
Chang, K.S. (연세대 대학원 전기공학과)
Ko, T.K. (연세대 공과대학 전기전자공학부)
Publication Information
Progress in Superconductivity and Cryogenics / v.13, no.1, 2011 , pp. 17-21 More about this Journal
Abstract
A hybrid superconducting fault current limiter (SFCL) with fast switch had been previously suggested by our research group. To make a hybrid SFCL, different superconducting wires were wound two pancake coils so that two pancake coils had asymmetric configuration. The impedance of the asymmetric non-inductive coils are zero with applied normal current. However during the fault. currents were distributed unequally into the two pancake coils because each superconducting wires have different electrical characteristics. This unequal distribution of current causes effective magnetic flux which generate repulsive force. Fast switch was thus opened by the force applied to the aluminum plate which consists of SFCL. In this paper, the AC loss characteristics of the asymmetric non-inductive coils with combinations of superconducting wires were studied and calculated by related experiments and finite element method (FEM) simulation. From these results, we suggested the appropriate combination of two superconducting wires to be used for the asymmetric non-inductive coils.
Keywords
AC loss; asymmetric non-inductive coil; hybrid SFCL; superconducting wire;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 1
연도 인용수 순위
1 Ernst Helmut Brandt and Mikhail Indenbom, "Type-II-superconductor strip with current in a perpendicular magnetic field", Phys. Rev. B 48, Vol. 48, No. 17, pp. 12893-12906, 1993.   DOI   ScienceOn
2 T. Fukuda, T. Kakeshita, and K. Kindo, "Effect of high magnetic field and uniaxial stress at cryogenic temperatures on phase stability of some authentic stainless steels", Materials Science and Engineering A 438-440, pp. 212-217, 2006.   DOI   ScienceOn
3 K. W. Ryu, Y. H. Ma, B. J. Choi, S. D. Hwang, "Influence of tape's critical currents and current distributions on AC loss measurement in a multi-tape conductor", Journal of the Korea Institute of Applied Superconductivity and Cryogenics, Vol. 7, No. 1, pp. 47, March 2005.
4 J. Ogawa, H. Nakayama, S. Odaka, O. Tsukamoto, "AC loss characteristics of YBCO conductors carrying transport currents in external AC magnetic fields", Cryogenics, Vol. 45, No. 1, pp. 23-27, 2005.   DOI   ScienceOn
5 M. Suenaga, M. Iwakuma, T Sueyoshi, T zumi, M Mimura, Y Takahashi and Y Aoki, "Effects of a ferromagnetic substrate on hysteresis losses of a $YBa_2Cu_3O_7$ coated conductor in perpendicular ac applied magnetic fields", Physica C: Superconductivity, Vol. 468, No. 15, pp. 1714-1717, 2008.   DOI   ScienceOn
6 D. K. Park, J. S. Bang, S. E. Yang, Y. S. Yoon, M, C. Ahn, Kideok Sim, T. K. Ko "Theoretical and Experimental Analysis of AC Loss Characteristic of Bifilar Pancake Coil With Coated Conductor", IEEE Transationa on Applied Superconductivity, Vol. 18, No. 2, pp. 1232, June 2008.   DOI   ScienceOn
7 Doan N. Nguyen, Pamidi V. P. S. S. Sastry, and Justin Schwartz, "Numerical calculations of the total ac loss of Cu-stabilized $YBa_2Cu_3O_{7-{\delta}}$ coated conductor with a substrate", Journal of Applied Physics, Vol. 101, No. 5, pp. 053905, 2007.   DOI   ScienceOn
8 W. T. Norris, "Calculation of hysteresis losses in hard superconductors carrying ac : isolated conductors and edges of thin sheets", Journal of Physics D : Applied Physics, Vol. 3, No. 4. pp. 489, 1970.   DOI   ScienceOn
9 K. S. Chang, S. E. Yang, D. H. Jang, D. K. Park, M. C. Ahn, K. D. Sim, H. K. Kang, B. Y. Seok, T. K. Ko, "AC loss Measurement of Bifilarly Wound Magnet Using Coated Conductor", IEEE Transationa on Applied Superconductivity, Vol. 17. No. 2, pp. 1883, June 2007.   DOI   ScienceOn
10 D. K. Park, K. S. Chang, S. E. Yang, Y. J. Kim, M. C. Ahn, Y. S. Yoon, H. M. Kim, J. W. Park, T. K. Ko. "Analytical and Experimental Studies on the Hybrid Fault Current Limiter Employing Asymmetric Non-Inductive Coil and Fast Switch", IEEE Transationa on Applied Superconductivity, Vol. 19, No. 3, pp. 1896, June 2009.   DOI   ScienceOn