• 2242 Citations
  • 21 h-Index
1987 …2019

Research output per year

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Research Output

2012
9 Citations (Scopus)

Performance evaluation on fault current controller system for the applications of smart grid

Jang, J. Y., Lee, W. S., Lee, J., Hwang, Y. J., Jo, H. C., Ahn, M. C., Hur, K. & Ko, T. K., 2012 Jan 1, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 14, 2, p. 12-15 4 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Simple die pressing for making artificial holes in single-grain Gd 1.5Ba 2Cu 3O 7-y superconductors

Kim, K. M., Park, S. D., Jun, B. H., Ko, T. K. & Kim, C. J., 2012 Oct 1, In : Superconductor Science and Technology. 25, 10, 105016.

Research output: Contribution to journalArticle

2 Citations (Scopus)

The effects of partial insulation winding on the charge-discharge rate and magnetic field loss phenomena of GdBCO coated conductor coils

Choi, Y. H., Kim, K. L., Kwon, O. J., Kang, D. H., Kang, J. S., Ko, T. K. & Lee, H. G., 2012 Oct 1, In : Superconductor Science and Technology. 25, 10, 105001.

Research output: Contribution to journalArticle

61 Citations (Scopus)

Towards a self-healing electric grid with superconducting fault current controllers

Shim, J. W., Nam, T., Jang, J. Y., Ko, T. K., Ahn, M. C. & Hur, K., 2012 Jun 25, In : IEEE Transactions on Applied Superconductivity. 22, 3, 5600904.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Transition criteria for critical current measurement of high temperature superconductor in AC circumstance

Lee, J., Choi, S., Hwang, Y. J., Lee, W. S., Kim, Y. C. & Ko, T. K., 2012 Jun 25, In : IEEE Transactions on Applied Superconductivity. 22, 3, 6104113.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Verification of a design technique of an SFCL system with a copper bypass reactor

Ahn, M. C., Chang, K. S., Ko, T. K., Song, J. B. & Lee, H., 2012 Jun 25, In : IEEE Transactions on Applied Superconductivity. 22, 3, 6156744.

Research output: Contribution to journalArticle

2011

Analysis on the dielectric characteristics of insulation gases for developing a high voltage superconducting fault current limiter

Kang, H. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1332-1335 4 p., 5710668.

Research output: Contribution to journalArticle

12 Citations (Scopus)
1 Citation (Scopus)

An experimental analysis on the design of HTS current lead with respect to the arrangement of coated conductor and the shape of a current terminal

Chang, K. S., Jang, J. Y., Lee, J. & Ko, T. K., 2011 Nov 1, In : Physica C: Superconductivity and its applications. 471, 21-22, p. 1007-1011 5 p.

Research output: Contribution to journalArticle

An experimental study on the joint methods between double pancake coils using YBCO coated conductors

Chang, K. S., Jo, H. C., Kim, Y. J., Cheolahn, M. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 3, p. 3005-3008 4 p., 5672801.

Research output: Contribution to journalArticle

8 Citations (Scopus)

A research about bending strain effect on splice characteristics in YBa2 Cu3 O7 coated conductors under various pressures in splicing

Kim, H. J., Chang, K. S., Kim, Y. J., Jo, H. C., Kim, K. J., Lee, H. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 3, p. 3001-3004 4 p., 5675717.

Research output: Contribution to journalArticle

4 Citations (Scopus)

A research on design method and theoretical analysis of electromagnetic suspension system considering magnetic interface between coils

Jang, J. Y., Kim, Y. J., Chang, K. S., Chung, Y. D., Lee, C. Y. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1523-1527 5 p., 5643151.

Research output: Contribution to journalArticle

5 Citations (Scopus)

A structure design of HTS current leads with respect to the structure of coated conductor and the current terminal

Chang, K. S., Jang, J. Y., Choi, S. J., Jo, H. C., Kim, Y. J., Ahn, M. C., Kim, H. M. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 3, p. 3013-3016 4 p., 5674100.

Research output: Contribution to journalArticle

2 Citations (Scopus)

A study on AC loss characteristics of asymmetric non-inductive coils with combination of superconducting wires

Kim, J. S., Hwang, Y. J., Na, J. B., Choi, S. J., Kim, Y. J., Lee, J. H., Lee, W. S., Chang, K. S. & Ko, T. K., 2011 Mar, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 13, 1, p. 17-21 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

A study on prototype hybrid (LTS/HTS) magnet for NMR application

Choi, S., Hwang, Y. J. & Ko, T. K., 2011 Sep 1, In : Journal of Magnetics. 16, 3, p. 312-317 6 p.

Research output: Contribution to journalArticle

A study on the design and quench protection of a conduction-cooled magnet for a superconducting property measurement system

Choi, S., Bae, J. H., Sohn, M. H., Park, C., Lee, J. K., Choi, K. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 2410-2414 5 p., 5643107.

Research output: Contribution to journalArticle

2 Citations (Scopus)

A study on the design on Iron-core shape for superconducting hybrid electro-magnet system

Hwang, Y. J., Choi, S., Jang, J. Y., Ko, T. K., Lee, C. Y., Yang, D. & Lee, H., 2011 Mar, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 13, 1, p. 36-40 5 p.

Research output: Contribution to journalArticle

A study on the quench initiation and propagation characteristics in GdBCO racetrack pancake coil for large-scale rotating machines

Yang, D. G., Song, J. B., Kim, K. L., Kwon, O. J., Lee, W. S., Ko, T. K. & Lee, H. G., 2011 Jan 1, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 13, 3, p. 24-30 7 p.

Research output: Contribution to journalArticle

Characteristics of persistent-current mode of HTS coil on superconducting electromagnet

Lee, C. Y., Kim, J., Han, Y. J., Kang, B., Chung, Y. D., Yoon, Y. S., Chu, S. Y., Hwang, Y. J., Jo, H. C., Jang, J. Y. & Ko, T. K., 2011 Nov 1, In : Physica C: Superconductivity and its applications. 471, 21-22, p. 1424-1427 4 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Conceptual design for HTS coil in superconducting electromagnet for Maglev

Lee, C. Y., Jo, J. M., Kang, B., Han, Y. J., Bae, D. K., Yoon, Y. S., Chung, Y. D., Chu, S. Y., Hwang, Y. J. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1560-1563 4 p., 5677617.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Design, manufacture and performance evaluation of HTS electromagnets for the hybrid magnetic levitation system

Chu, S. Y., Hwang, Y. J., Choi, S., Na, J. B., Kim, Y. J., Chang, K. S., Bae, D. K., Lee, C. Y. & Ko, T. K., 2011 Nov 1, In : Physica C: Superconductivity and its applications. 471, 21-22, p. 1501-1505 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Design method for HTS wire length of the small scale resistive type superconducting fault current limiter considering system resistance

Lee, W. S., Choi, S. J., Jang, J. Y., Hwang, Y. J., Kang, J. S., Yang, D. G., Lee, H. G. & Ko, T. K., 2011 Sep, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 13, 3, p. 14-18 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Design of prototype superconducting hybrid electromagnet for high speed Maglev

Lee, C. Y., Kang, B. B., Jo, J. M., Han, Y. J., Chu, S. Y., Hwang, Y. J., Jo, H. C., Jang, J. Y. & Ko, T. K., 2011 Jan 1, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 13, 3, p. 1-4 4 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Experimental analysis of AC loss and recovery characteristics for proposal of effective thickness of spacers in pancake type

Hwang, Y. J., Choi, S., Jang, J. Y., Bae, D. K. & Ko, T. K., 2011 Jun 1, In : Cryogenics. 51, 6, p. 266-271 6 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Experimental analysis of unequal voltage distribution on a single YBCO coated conductor affected by inhomogeneous critical currents in liquid nitrogen and sub-cooled liquid nitrogen

Chu, S. Y., Jang, J. Y., Choi, S., Kim, Y. J., Chang, K. S. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 3, p. 2992-2996 5 p., 5669360.

Research output: Contribution to journalReview article

3 Citations (Scopus)

Experimental and analytical studies on the characteristics of fast switch in combinations of various superconducting tapes

Lee, J., Kim, Y. J., Na, J. B., Choi, S., Jang, J. Y., Hwang, Y. J., Kim, J. S. & Ko, T. K., 2011 Mar, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 13, 1, p. 31-35 5 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Experimental study on the barrier effects in gaseous helium for the insulation design of a high voltage SFCL

Kang, H., Na, J. B., Chung, Y. D. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1328-1331 4 p., 5710669.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Experimental study on the lightning impulse dielectric characteristics of sub-cooled liquid nitrogen for a high voltage superconducting fault current limiter

Na, J. B., Kang, H., Kim, Y. J., Chang, K. S., Hwang, Y. J. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1336-1339 4 p., 5713823.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Experimental study on the lightning impulse dielectric strength of liquid nitrogen insulation medium according to various pressures

Na, J. B., Kang, H., Chang, K. S., Kim, Y. J., Chu, S. Y., Kim, T. J., Kim, K. J., Lee, H. G. & Ko, T. K., 2011 Nov 1, In : Physica C: Superconductivity and its applications. 471, 21-22, p. 1581-1585 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Experimental test and numerical analysis to estimate permissible transport current considering protection of high-Tc superconducting tapes in adiabatic condition

Kim, Y. J., Chang, K. S., Ahn, M. C. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1665-1669 5 p., 5680945.

Research output: Contribution to journalArticle

Fabrication and small scale short circuit tests of hybrid fault current limiter employing asymmetric non-inductive coil and fast switch

Jang, J. Y., Kim, Y. J., Na, J. B., Choi, S., Lee, W. S., Lee, C. Y., Park, D. K. & Ko, T. K., 2011 Mar, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 13, 1, p. 41-45 5 p.

Research output: Contribution to journalArticle

Fabrication and test of HTS flux pump combined with solar energy system

Kim, D. W., Chung, Y. D., Jo, H. C., Yoon, Y. S., Kim, H. K. & Ko, T. K., 2011 Jan 1, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 13, 1, p. 22-26 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Fundamental performance of novel power supply for HTS magnet using solar energy system

Chung, Y. D., Kim, D. W., Jo, H. C., Yoon, Y. S., Kim, H. K. & Ko, T. K., 2011 Jun 1, In : Cryogenics. 51, 6, p. 220-224 5 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Novel design of the structure of a non-inductive superconducting coil

Ahn, M. C., Jang, J. Y., Ko, T. K. & Lee, H., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1250-1253 4 p., 5675700.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Operating characteristics of oval-shaped resistive superconducting fault current limiter

Jo, H. C., Chang, K. S., Kim, Y. J., Chu, S. Y., Kim, H. J., Kim, H. M., Yoon, Y. S. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1246-1249 4 p., 5704214.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Over-current characteristics influenced by ag stabilizer thickness in a GdBCO coated conductor (CC)

Choi, Y. H., Song, J. B., Yang, D. G., Ahn, M. C., Kim, Y. J., Ko, T. K. & Lee, H., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 3, p. 3029-3032 4 p., 5675718.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Proof-of-concept of a smart fault current controller with a superconducting coil for the smart grid

Ahn, M. C. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 2201-2204 4 p., 5668895.

Research output: Contribution to journalArticle

25 Citations (Scopus)

Quench and recovery characteristics of the Zr-doped (Gd,Y) BCO coated conductor pancake coils insulated with copper and Kapton tapes

Yang, D. G., Song, J. B., Choi, Y. H., Ahn, M. C., Na, J. B., Ko, T. K. & Lee, H. G., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 2415-2419 5 p., 5659975.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Recovery estimation for over-current test of non-inductive fault current limiters using numerical analysis

Kim, Y. J., Chang, K. S., Jo, H. C., Yoon, Y. S., Lee, J. H., Lee, H. & Ko, T. K., 2011 Jun 1, In : Cryogenics. 51, 6, p. 261-265 5 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Temperature characteristic of high-Tc coated conductor by numerical method when a fault current flows

Choi, S., Kim, Y. J., Chang, K. S., Jang, J. Y., Lee, S. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1233-1237 5 p., 5677561.

Research output: Contribution to journalArticle

2 Citations (Scopus)

The effect of operating temperature on transport AC loss according to an YBCO superconducting tape array geometry

Hwang, Y. J., Chang, K. S., Kim, Y. J., Choi, S., Kim, H. J., Kim, K. J., Lee, H. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 3, p. 3329-3333 5 p., 5680619.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Theoretical analysis and design consideration of advanced linear type magnetic flux pump

Chung, Y. D., Kang, H. K., Yoon, Y. S. & Ko, T. K., 2011 Jun 1, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1097-1100 4 p., 5706386.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Theoretical and FEM analysis of suspension and propulsion system with HTS hybrid electromagnets in an EMS Maglev model

Chung, Y. D., Lee, C. Y., Jang, J. Y., Yoon, Y. S. & Ko, T. K., 2011 Nov 1, In : Physica C: Superconductivity and its applications. 471, 21-22, p. 1487-1491 5 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
2010

Analysis of charging characteristics of linear type magnetic flux pump depended on traveling speed of magnetic field

Chung, Y. D., Kim, H. K., Bae, D. K., Yoon, Y. S., Jo, H. C. & Ko, T. K., 2010 Mar 1, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 12, 1, p. 47-51 5 p.

Research output: Contribution to journalArticle

Analysis on ground conductor shape and size effect to levitation force in static type EDS simulator

Lee, J., Bae, D. K., Kang, H., Ahn, M. C., Lee, Y. S. & Ko, T. K., 2010 Jun 1, In : IEEE Transactions on Applied Superconductivity. 20, 3, p. 896-899 4 p., 5433291.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Analytical design method of high-Tc coated conductor for a resistive superconducting fault current limiter using finite element method

Kim, Y. J., Park, D. K., Yang, S. E., Kim, W. C., Ahn, M. C., Yoon, Y. S., Kwon, N. Y., Lee, H. & Ko, T. K., 2010 Jun 1, In : IEEE Transactions on Applied Superconductivity. 20, 3, p. 1172-1176 5 p., 5422874.

Research output: Contribution to journalArticle

8 Citations (Scopus)

A study on a splice method of YBCO coated conductors with curvature for HTS magnet application

Kim, H. J., Jo, H. C., Chang, K. S., Yang, M. K., Ahn, M. C. & Ko, T. K., 2010 Mar 1, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 12, 1, p. 17-21 5 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)