• 2302 Citations
  • 21 h-Index
1987 …2020

Research output per year

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Research Output

2015

Evaluation of Electrical and Thermal Properties of Stacked YBCO Coated Conductors for Current Lead Application

Park, Y. G., Lee, W. S., Kim, H. J., Chung, Y. D., Yoon, Y. S. & Ko, T. K., 2015 Jun 1, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6995943.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Experimental analysis on initial current decay characteristics of persistent-mode HTS coil by external alternating magnetic field

Park, Y. G., Lee, C. Y., Lee, J., Nam, S., Chung, Y. D., Yoon, Y. S. & Ko, T. K., 2015 Jun 1, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6975064.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Fabrication and experimental analysis of 6.6 kV/100 a class single-phase superconducting fault current controller with superconducting DC reactor coil

Lee, J., Lee, W. S., Nam, S., Kim, J., Lee, S., Ahn, M. C., Park, Y. G., Song, S., Lee, J., Jin, H., Kim, H. J., Kim, S., Hur, K. & Ko, T. K., 2015 Jun 1, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6966739.

Research output: Contribution to journalArticle

1 Citation (Scopus)

HTS coil with enhanced thermal stability in over-current operation for fast response magnet power application

Kim, H., Kim, J., Lee, J. & Ko, T. K., 2015 Aug 24, In : Superconductor Science and Technology. 28, 10, 105006.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Jointless pancake coil winding for minimizing electrical loss in HTS SMES for wind power

Kang, J., Ko, T. K., Al-Ammar, E. A. & Hur, K., 2015 Jun 1, In : IEEE Transactions on Applied Superconductivity. 25, 3, 7006688.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Operational characteristics of a small-scale novel hybrid resistive-type SFCL with controlled power electronics

Nam, S., Lee, J., Lee, W. S., Park, Y. G., Song, S., Jin, H. & Ko, T. K., 2015 Jun 1, In : IEEE Transactions on Applied Superconductivity. 25, 3, 7015566.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Proof-of-concept of a millisecond-scale electromagnetic levitator using high-temperature superconducting coils

Lee, J., Nam, S., Song, S., Jin, H. & Ko, T. K., 2015 Jun 1, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6983590.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Quench analysis of a superconducting magnet for RISP 28 GHz ECR ion source

Song, S., Ko, T. K., Choi, S., Hong, I. S., Kang, H. & Ahn, M. C., 2015 Jun 1, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6987240.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Quench detection method for HTS coils using electromagnetically coupled coils

Song, S., Lee, J., Lee, W. S., Jin, H., Lee, J., Hwang, Y. J. & Ko, T. K., 2015 Jun 1, In : IEEE Transactions on Applied Superconductivity. 25, 3, 6928408.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Statistical analysis for HTS coil considering inhomogeneous Ic distribution of HTS tape

Jin, H., Lee, J., Lee, W. S. & Ko, T. K., 2015 Jun 1, In : Progress in Superconductivity and Cryogenics (PSAC). 17, 2, p. 41-44 4 p.

Research output: Contribution to journalArticle

Test and simulation of High-Tc superconducting power charging system for solar energy application

Jeon, H., Park, Y. G., Lee, J., Yoon, Y. S., Chung, Y. D. & Ko, T. K., 2015 Sep, In : Progress in Superconductivity and Cryogenics (PSAC). 17, 3, p. 18-22 5 p.

Research output: Contribution to journalArticle

2014

Characteristics of joint resistance with different kinds of HTS tapes for heater trigger switch

Lee, J., Park, Y. G., Lee, W. S., Jo, H. C., Yoon, Y. S. & Ko, T. K., 2014 Mar, In : Progress in Superconductivity and Cryogenics (PSAC). 16, 1, p. 32-35 4 p.

Research output: Contribution to journalArticle

Conceptual design of superconducting linear synchronous motor for 600-km/h wheel-type railway

Lee, C. Y., Lee, J. H., Jo, J. M., Park, C. B., Ryu, W. H., Chung, Y. D., Hwang, Y. J., Ko, T. K., Oh, S. Y. & Lee, J., 2014 Jan 1, In : IEEE Transactions on Applied Superconductivity. 24, 3, 6620976.

Research output: Contribution to journalArticle

29 Citations (Scopus)

Critical current characteristic of various 2G HTS multi-stacked tapes depending on the low external magnetic field

Kim, J., Lee, W. S., Jin, H. & Ko, T. K., 2014 Mar, In : Progress in Superconductivity and Cryogenics (PSAC). 16, 1, p. 27-31 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
5 Citations (Scopus)

Design and test of a high-Tc superconducting power conversion system with the GdBCO Magnet

Jo, H. C., Park, Y. G., Chung, Y. D., Kim, H. M., Ko, T. K. & Yoon, Y. S., 2014 Jan 1, In : IEEE Transactions on Applied Superconductivity. 24, 3, 6675820.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Electromagnetic Design of a 15 MW-Class HTS Flux Switching Synchronous Generator considering Mechanical Stress of the Rotor Core

Hwang, Y. J., Ahn, M. C., Lee, J., Yoon, Y. S., Kim, H. M., Chung, Y. D., Jo, Y. S., Kim, T. J. & Ko, T. K., 2014 Jun, In : IEEE Transactions on Applied Superconductivity. 24, 3, 6637074.

Research output: Contribution to journalArticle

14 Citations (Scopus)
4 Citations (Scopus)

Evaluation on electrical and thermal characteristics of multi-stacked HTS coated conductor with various stabilizers

Park, Y. G., Hwang, Y. J., Jang, J. Y., Kim, H. J., Lee, W. S., Jo, H. C., Kim, H. M., Yoon, Y. S. & Ko, T. K., 2014 Jun, In : IEEE Transactions on Applied Superconductivity. 24, 3, 2291833.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Experimental Study on Current Decay Characteristics of Persistent Current HTS Magnet by Alternating Magnetic Field

Park, Y. G., Lee, C. Y., Hwang, Y. J., Lee, W. S., Lee, J., Jo, H. C., Chung, Y. D. & Ko, T. K., 2014 Jan 1, In : Physics Procedia. 58, p. 268-271 4 p.

Research output: Contribution to journalConference article

Open Access
2 Citations (Scopus)
3 Citations (Scopus)

Numerical analysis and design of damper layer for MW-class HTS synchronous wind turbine generator

Jo, H. C., Lee, W. S., Chung, Y. D., Yoon, K. Y., Kim, H., Jo, Y. S., Ko, T. K. & Yoon, Y. S., 2014 Jan 1, In : IEEE Transactions on Applied Superconductivity. 24, 3, 6634215.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Quench protection for HTS current leads by adding connected HTS bridges

Lee, W. S., Hwang, Y. J., Kim, J., Nam, S., Park, Y. G. & Ko, T. K., 2014 Jun, In : IEEE Transactions on Applied Superconductivity. 24, 3, 6651697.

Research output: Contribution to journalArticle

The Effect of Bobbin Material on the Thermal Stability of a Conduction-Cooled HTS Racetrack Coil

Kwon, O. J., Yang, D. G., Lee, J., Song, J. B., Lee, J., Ko, T. K. & Lee, H., 2014 Jun, In : IEEE Transactions on Applied Superconductivity. 24, 3, 4602505.

Research output: Contribution to journalArticle

5 Citations (Scopus)

The effects of co-wound Kapton, stainless steel and copper, in comparison with no insulation, on the time constant and stability of GdBCO pancake coils

Sung Lee, T., Jin Hwang, Y., Lee, J., Seung Lee, W., Kim, J., Hyun Song, S., Cheol Ahn, M. & Kuk Ko, T., 2014 Jun, In : Superconductor Science and Technology. 27, 6, 065018.

Research output: Contribution to journalArticle

50 Citations (Scopus)

Voltage disturbance detection method for HTS tape using electromagnetically coupled coils

Song, S., Lee, J., Lee, W. S., Jin, H., Hwang, Y. J. & Ko, T. K., 2014 Mar, In : Progress in Superconductivity and Cryogenics (PSAC). 16, 1, p. 23-26 4 p.

Research output: Contribution to journalArticle

2013

A novel and smart design of superconducting fault current controller: Implementation and verification for various fault condition

Jang, J. Y., Lee, J., Park, Y. G., Kim, J., Shim, J. W., Ahn, M. C., Hur, K., Ko, T. K., Al-Ammar, A. & Babar, M., 2013 Mar 11, In : IEEE Transactions on Applied Superconductivity. 23, 3, 6373702.

Research output: Contribution to journalArticle

5 Citations (Scopus)

A numerical study on the feasibility evaluation of a hybrid type superconducting fault current limiter applying thyristors

Nam, S., Lee, W. S., Lee, J., Hwang, Y. J. & Ko, T. K., 2013 Dec 1, In : Progress in Superconductivity and Cryogenics (PSAC). 15, 4, p. 26-29 4 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

A study on a modeling method about current-voltage characteristic of HTS tape considering resistance of stabilizer

Lee, W. S., Lee, J., Nam, S. & Ko, T. K., 2013 Dec 12, In : Progress in Superconductivity and Cryogenics (PSAC). 15, 3, p. 9-12 4 p.

Research output: Contribution to journalArticle

A study on an algorithm for finding magnetic center of an asymmetric HTS magnet with 3-axis mapper

Lee, W. S., Ahn, M. C., Hahn, S. Y. & Ko, T. K., 2013 Jan 30, In : IEEE Transactions on Applied Superconductivity. 23, 3, 6373705.

Research output: Contribution to journalArticle

1 Citation (Scopus)

A study on the normal zone propagation velocity of the racetrack type coil with difference shapes of coil bobbin

Na, J. B., Hwang, Y. J. & Ko, T. K., 2013 May 2, In : IEEE Transactions on Applied Superconductivity. 23, 3, 6450058.

Research output: Contribution to journalArticle

1 Citation (Scopus)

A study on the superconducting synchronous generator with the fixed-type field coil

Hwang, Y. J., Choi, S., Jang, J. Y., Lee, J., Yoon, Y. S., Kim, H. M., Chung, Y. D., Jo, Y. S., Jang, M. H., Al-Ammar, E. A. & Ko, T. K., 2013 Jan 30, In : IEEE Transactions on Applied Superconductivity. 23, 3, 6389723.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Erratum: Eevaluations on AC electrical characteristics of no-insulation coil for power devices (IEEE Transactions on Applied Superconductivity)

Hwang, Y. J., Hahn, S., Choi, S., Jo, H. C., Choi, Y. H., Kim, T. J. & Ko, T. K., 2013 Sep 9, In : IEEE Transactions on Applied Superconductivity. 23, 5, 6585816.

Research output: Contribution to journalComment/debate

Evaluations on AC electrical characteristics of no-insulation coil for power devices

Hwang, Y. J., Choi, S., Jo, H. C., Choi, Y. H., Kim, T. J., Hahn, S. & Ko, T. K., 2013 Jan 21, In : IEEE Transactions on Applied Superconductivity. 23, 3, 6376114.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Experimental study of the effects of alternating fields on HTS coils according to the winding insulation conditions

Hwang, Y. J., Ahn, M. C., Lee, T. S., Lee, W. S. & Ko, T. K., 2013 Aug 1, In : Superconductor Science and Technology. 26, 8, 085021.

Research output: Contribution to journalArticle

10 Citations (Scopus)

HTS wire consumption reduction in a coil with an actively controllable magnetic core for a fault current controller

Ahn, M. C., Jang, J. Y. & Ko, T. K., 2013 Apr 22, In : IEEE Transactions on Applied Superconductivity. 23, 3, 6471187.

Research output: Contribution to journalArticle

Performance inspection of smart superconducting fault current controller in radial distribution substation through PSCAD/EMTDC simulation

MassoudiFarid, M., Shim, J. W., Lee, J. & Ko, T. K., 2013 Dec 1, In : Progress in Superconductivity and Cryogenics (PSAC). 15, 4, p. 21-25 5 p.

Research output: Contribution to journalArticle

The manufacture and test of a GdBCO insert coil for an 11 T superconducting magnet

Choi, S., Jo, H. C., Hwang, Y. J., Jang, J. Y., Na, J. B. & Ko, T. K., 2013 Jan 21, In : IEEE Transactions on Applied Superconductivity. 23, 3, 6377265.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2012
1 Citation (Scopus)
3 Citations (Scopus)

A study on the basic characteristics of persistent current mode operation for small scale high temperature superconducting coil with no-insulation winding method

Lee, T. S., Lee, W. S., Choi, S., Jo, H. C., Kim, H. J., Lee, J., Kang, J. S., Kwon, O. J., Lee, H. G. & Ko, T. K., 2012 Jan 1, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 14, 3, p. 23-27 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

A study on the loss in a superconducting magnet by the control current in a hybrid electro-magnetic suspension system

Kim, Y. H., Jang, J. Y., Jo, H. C., Choi, S., Na, J. B., Lee, C. Y., Song, J. B., Lee, H., Ko, T. K. & Hwang, Y. J., 2012 Jun 25, In : IEEE Transactions on Applied Superconductivity. 22, 3, 6132409.

Research output: Contribution to journalArticle

3 Citations (Scopus)

A study on the no insulation winding method of the HTS coil

Choi, S., Jo, H. C., Hwang, Y. J., Hahn, S. & Ko, T. K., 2012 Jun 28, In : IEEE Transactions on Applied Superconductivity. 22, 3, 6080707.

Research output: Contribution to journalArticle

86 Citations (Scopus)

A study on thermal stability of the non-insulated HTS racetrack-type coil under various external pressures applied to straight sections

Kwon, O. J., Kim, K. L., Choi, Y. H., Yang, D. G., Kim, Y. G., Lee, T. S., Ko, T. K. & Lee, H. G., 2012 Jan 1, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 14, 3, p. 33-37 5 p.

Research output: Contribution to journalArticle

A study on the shape of iron-core for a hybrid electro-magnetic suspension system

Hwang, Y. J., Jang, J. Y., Choi, S., Na, J. B., Jo, H. C., Lee, C. Y. & Ko, T. K., 2012 Jun 25, In : IEEE Transactions on Applied Superconductivity. 22, 3, 6109336.

Research output: Contribution to journalArticle

1 Citation (Scopus)

A study on the winding method for reducing joints of the high temperature superconducting double pancake coil

Kang, J. S., Jo, H. C., Jang, J. Y., Hwang, Y. J., Lee, J., Lee, W. S., Park, Y. G. & Ko, T. K., 2012 Mar, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 14, 1, p. 30-33 4 p.

Research output: Contribution to journalArticle

Characteristic analysis of HTS magnet charging system combined with PV system using MPPT control

Kim, D. W., Yoon, Y. S., Chung, Y. D., Jo, H. C., Kim, H. M., Kim, T. J., Oh, J. G. & Ko, T. K., 2012 Mar, In : Journal of the Korea Institute of Applied Superconductivity and Cryogenics. 14, 1, p. 8-13 6 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Characteristic comparison for the various winding methods of HTS magnets

Jo, H. C., Choi, S., Na, J. B., Jang, J. Y., Hwang, Y. J., Kim, H. J., Ahn, M. C., Chung, Y. D., Kim, H. M., Yoon, Y. S., Ryu, K. S., Kim, Y. C., Lee, H. & Ko, T. K., 2012 Jun 25, In : IEEE Transactions on Applied Superconductivity. 22, 3, 4902907.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Characteristics of an HTS coil with a reversely magnetized core for the smart fault current controller

Ahn, M. C., Jang, J. Y. & Ko, T. K., 2012 Jun 25, In : IEEE Transactions on Applied Superconductivity. 22, 3, 6082387.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Characteristics of contactless power transfer for HTS coil based on electromagnetic resonance coupling

Kim, D. W., Chung, Y. D., Kang, H. K., Yoon, Y. S. & Ko, T. K., 2012 Jun 25, In : IEEE Transactions on Applied Superconductivity. 22, 3, 5400604.

Research output: Contribution to journalArticle

45 Citations (Scopus)