Title |
A Study on the Analysis of Lightning Damage Impact in Domestic Offshore Wind Farm |
Authors |
서진규(Seo, Jin-Gyu) ; 김규호(Kim, Kyu-Ho) |
DOI |
https://doi.org/10.5370/KIEE.2016.65.2.247 |
Keywords |
Lightning strikes ; Offshore wind farm ; Steady state ; Transient state ; Countermeasure ; Earth resistivity |
Abstract |
The latest offshore wind turbines are easily exposed to lightning strikes because they are designed with longer blades and taller height to satisfy the growing capacity demands. The generation facilities and elements of the offshore wind farm are more vulnerable to lightning damage because of more severe, unpredictable weather conditions. Therefore, this paper presents the analysis of measure for lightning overvoltage mitigation in offshore wind farm planned in South Korea southwest seashore. The sensitivity analysis includes the steady state and transient state characteristics of offshore wind farm and proposes the countermeasure for mitigation of transient overvoltage by considering earth resistivity of the offshore environment. |