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Optimal Design Specifications of 22.9 kV HTS-FCL Applied in Real Korean Power System

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3 Author(s)
Jae-young Yoon ; Korea Electrotechnol. Res. Inst. [KERI], Changwon, South Korea ; Seung-Ryul Lee ; Yang, B.

KEPCO decided to apply the HTS FCL and cable in real substation in 2009. This is the first commercial demonstration case and starting point of the HTS equipment in South Korea, even though this is not a general perfect commercialization. For a successful application on this commercialization preliminary, it is quite important to design the HTS-FCL specification with regard to the current status of the application site (for example, the existence of NGR (Neutral Grounding Reactor), 3-winding low% impedance and so on). This paper evaluates the necessary and sufficient design specifications of the 22.9 kV HTS-FCL to fulfill the real power system conditions. It investigates the detailed design criteria, short circuit capacity, FCL impedance, protection scheme, fault limiting type and other design parameters to learn the real status of ICHEON substation which will be using the HTS- FCL.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:21 ,  Issue: 3 )