| Issue |
MATEC Web Conf.
Volume 245, 2018
International Scientific Conference on Energy, Environmental and Construction Engineering (EECE-2018)
|
|
|---|---|---|
| Article Number | 15001 | |
| Number of page(s) | 10 | |
| Section | Renewable Energy | |
| DOI | https://doi.org/10.1051/matecconf/201824515001 | |
| Published online | 05 December 2018 | |
Investigation of the wind generator blades material resistance to the lightning current action
Peter the Great Saint-Petersburg Polytechnic University, Polytechnicheskaya 29, 195251, Russian Federation
* Corresponding author: tm_21@rambler.ru
This paper is devoted to the problems of lightning protection of composite materials of wind generator blades. The results of experimental studies for carbon fibers under different types of lightning current pulse effects are provided. A significant increase in the degree of destruction of materials is shown for the pulse approximating field experiment results as compared with the standard lightning current pulse. We show that under the impact of the standard current pulse there is no significant material destruction, and the release of the discharge products is also insignificant. Also we shown that under the impact of the current pulse having a long «tail» time period (the current pulse close to the real one) there is an ignition of the carbon fiber composite material near the edges of the feeding electrode. With this the burning process doesn’t end after the end of the current pulse. The description of the pulse current generator created for experiments is given.
© The Authors, published by EDP Sciences, 2018
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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