Contribution to the study of the aggression of lightning phenomenon on the wind turbine structures
| Autor: | Dib Djalel, Mordjaoui Mourad, Ghoudelbourk Sihem |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Wind power Lightning (phenomenon) 010504 meteorology & atmospheric sciences Meteorology Renewable Energy Sustainability and the Environment business.industry 020208 electrical & electronic engineering Energy Engineering and Power Technology 02 engineering and technology 01 natural sciences Lightning Turbine Electricity generation Lightning strokes 0202 electrical engineering electronic engineering information engineering business 0105 earth and related environmental sciences |
| Zdroj: | Wind Engineering. 40:100-111 |
| ISSN: | 2048-402X 0309-524X |
| DOI: | 10.1177/0309524x15624615 |
| Popis: | Because of the complexity of the lightning phenomenon in the physical and electrical aspects, the aggression of lightning strokes on the wind turbines has become, for many years, one of the main causes for insurance agencies of these new electric generation systems. Wind turbines have important dimensions of structures, where they can easily attract lightning and his anger, the effect of heights also captures the farthest lightning. The rotation of the blades may also trigger lightning and result in considerable increase in the number of strikes to a wind turbine unit. Since wind turbines are tall structures, the lightning currents that are injected by return strokes into the turbines will be affected by reflections at the top, at the bottom, and at the junction of the blades with the static base of the turbine. Despite the protection in place in wind turbines, statistics show that they are inefficient, because they are placed in locations where repair is difficult and expensive. In this article, we study lightning strikes and their effects on wind turbines and propose other useful elements in the design of efficient wind turbines and optimal ways to protect them against direct and indirect lightning strikes. |
| Databáze: | OpenAIRE |
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