| Title |
Lightning Overvoltage Analysis of Wind Turbine for Lightning Protection according to Grounding Method of Specification KEC |
| Authors |
표광진(Kuang-Jin Pyo) ; 이택기(Taeck-Kie Lee) ; 김규호(Kyu-Ho Kim) ; 김진형(Jin-Hyung Kim) ; 우정욱(Jung-Wook Woo) |
| DOI |
https://doi.org/10.5370/KIEE.2020.69.4.529 |
| Keywords |
Direct Lightning Strike; Grounding Method; KEC; Lightning-Induced; Wind Turbine |
| Abstract |
Standard for lightning protection of wind turbine KEC has information on grounding to prevent damage of wind power plant due to lightning strikes. In the case of KEC, grounding is performed using equipotential bonding to eliminate the potential difference due to the abnormal overvoltage of wind power generation facility, and the resistance of the grounding is also limited to below a certain level. This analysis includes the contents of lightning overvoltage generated by direct lightning strikes and lightning-induced with equipotential bonding according to KEC standards. Although there is a fine potential difference due to the equipotential bonding conductor, compared with independent ground, common ground is very effective in eliminating potential difference, and the use of softening among common ground methods is more useful for lightning overvoltage reduction effect. |