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논문 기본 정보

저자정보
(KEPCO research institute) (OCI Power) (Hongik University) (Hongik University)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제75권 제1호
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    초록·키워드

    This paper calculated the DLR (Dynamic Line Rating) using hourly temperature and wind speed data measured at meteorological observation stations. Inverse Distance Weighting (IDW) was applied to interpolate the meteorological data measured at weather stations to values for actual transmission lines. Additionally, for wind speed, the Terrain Roughness Index (TRI) was applied to quantify the surface roughness varying with terrain and improve the accuracy of the estimated wind speed. The accuracy of this methodology is evaluated using RMSE (Root Mean Square Error). Applying data from 10 meteorological stations yielded an RMSE of 1.24 to 1.33 for temperature and 0.78 to 0.79 for wind speed. The DLR calculation showed a 31.2% margin relative to the ACSR conductor's rated current during the normal condition in August, when temperatures were highest. Even during a single line fault on the 345kV line, a 6.5% margin was maintained.

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      UCI(KEPA) : I410-151-26-02-095582633