This paper deals with design and operating test of a novel hybrid FCL. The FCL system consists of a coil, a fast switch and a resistor for bypassing the fault current. The switch is driven by novel non-inductive coil suggested in this paper but an extra driving coil is required for fast switch in existing hybrid FCL. We used two kinds of HTS wire for the coil. The impedance of the coil was negligible in normal operation. But different quench characteristics of HTS wires caused asymmetric current distribution which induced effective magnetic flux in the coil during faults. The switch was opened by repulsive force from this magnetic flux in fast response to the fault. Then, all current were flew through the normal conductive bypass resistor connected in parallel to both the coil and the switch. Electromagnetic analysis of the coil based on finite element method was performed. Also, a small-scale asymmetric non-inductive coil was designed, fabricated and tested. The proposed hybrid FCL system showed fast and efficient current limiting characteristic.
Bibliographical noteFunding Information:
Manuscript received August 26, 2008. First published June 05, 2009; current version published July 15, 2009. This work was supported by a grant from the Center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Education, Science and Technology, Republic of Korea. D. K. Park, K. S. Chang, S. E. Yang, Y. J. Kim, J.-W. Park and T. K. Ko are with the School of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea (e-mail: email@example.com). M. C. Ahn is with the FBML/MIT, USA (e-mail: firstname.lastname@example.org). Y. S. Yoon is with Ansan College of Technology, Ansan, Korea (e-mail: email@example.com). H. M. Kim is with KERI, Changwon, Korea (e-mail: firstname.lastname@example.org). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2009.2018069
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering