Open AccessHigh‐frequency modeling of Zafarana wind farm and reduction of backflow current‐overvoltages
Author(s) -
AbdElhady Amr M.,
Sabiha Nehmdoh A.,
Izzularab Mohamed A.
Publication year - 2014
Publication title -
international transactions on electrical energy systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 42
ISSN - 2050-7038
DOI - 10.1002/etep.1697
Subject(s) - backflow , turbine , surge arrester , engineering , ground , marine engineering , wind power , electrical engineering , surge , meteorology , aerospace engineering , physics , mechanical engineering , inlet
SUMMARY The wind turbine is subjected to lightning due to its geographical location and size. The struck wind turbine suffers from backflow current‐overvoltages affected by the grounding system. This issue is highlighted in this paper, and, therefore, the grounding system of the wind turbine is modified. In order to accurately examine the proposed grounding system, we present a model that takes into account both soil ionization and frequency‐dependence effect. Also, wind farm components, such as wind turbine down conductor, transformers, surge arresters, overhead, and distributed line, are modeled using high‐frequency models. More factors affecting backflow current‐overvoltages are analysed such as the lightning inception angle, in‐service and out‐of‐service wind farm, and the number of wind turbines. The simulation is carried out using ATP/EMTP software. Copyright © 2012 John Wiley & Sons, Ltd.