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http://dx.doi.org/10.7471/ikeee.2020.24.3.691

Analysis of fault current in offshore wind farm ccording to the grid connection method  

Ahn, Jin-Hong (Dept. of Electrical Engineering, Jeju National University)
Kim, Eel-Hwan (Dept. of Electrical Engineering, Jeju National University)
Publication Information
Journal of IKEEE / v.24, no.3, 2020 , pp. 691-698 More about this Journal
Abstract
The installation cost or the magnitude of the fault current varies depending on the grid connection method of the offshore wind farm. Therefore, there is a need for an efficient power grid connection method considering the capacity and location of the complex. In particular, most power cables in offshore wind farms use 3-core considering cost and efficiency. In the event of a failure such as a short circuit, the entire cable must be replaced, which can lead to significant losses in terms of cost, considering repair costs and turbine downtime. Therefore, in this paper, a radial, ring, and molding method is introduced into a 100 MW wind farm to be installed at Jeju offshore, and a three-phase short circuit failure is performed using a PSCAD/EMTDC program to perform computer analysis. I would like to propose a suitable power grid connection method.
Keywords
PSCAD/EMTDC; CFI; Offshore Wind Power Plant; Radial; Ring; Star;
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