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Application Methodology for 22.9 kV HTS Cable in Metropolitan City of South Korea

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3 Author(s)
Jae-young Yoon ; Korea Electrotechnol. Res. Inst., Changwon ; Seung Ryul Lee ; Jong Yul Kim

The increasing electricity demand and deregulation of the power industry continues to produce problems for transmission and distribution system operators who are faced with curtailing investment and the NIMBY (Not In My Back Yard) phenomena (L. Pierluigi and M. Andrea, 2002) (R. Silberglitt et al., 2002) . It is expected that the route length per MW demand of South Korea will decrease gradually from 0.57[C-km/MW] to 0.53[C-km/MW] in 2017 (2005). This comes up to a real serious problem from system planning and operation viewpoints. HTS technologies related to power system have properties to solve these complex transmission and distribution constraints, especially for metropolitan area, in the future. As the HTS technology has developed, the HTS cable technology can be the most effective alternative to solve the future expected power network constraints. This paper describes the application methodology of developing 22.9 kV HTS cable by CAST (the Center for Applied Superconductivity Technology) for practical distribution system. 22.9 kV HTS cable under development with step-by-step application methodology can substitute the existing and planning conventional 154 kV cable (2002) (2003). If this scheme is applied, part of downtown 154 kV substation of metropolitan city such as Seoul can be changed into 22.9 kV switching station. Additionally, it can give huge economic, environmental benefits to all of the concerned authorities.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:17 ,  Issue: 2 )