Experimental study on lightning discharge attachment to the modern wind turbine blade with lightning protection system

Arif, Waqas and Li, Qingmin and Guo, Zixin and Ellahi, Manzoor and Wang, Guozheng and Siew, Wah Hoon; (2018) Experimental study on lightning discharge attachment to the modern wind turbine blade with lightning protection system. In: 2017 13th International Conference on Emerging Technologies (ICET). IEEE, Piscataway, N.J.. ISBN 978-1-5386-2260-5 (https://doi.org/10.1109/ICET.2017.8281654)

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Abstract

Lightning strike is one of the most severe threats to the wind turbine blades and causes huge damage. Mostly wind turbines are struck by lightning when the blades are rotating. The effect of blade rotation on a lightning discharge attachment is unclear. Therefore, a rod electrode was used in a wind turbine lightning discharge test to investigate the difference in lightning triggering ability when blades are rotating and stationary. A standard switching waveform of 250/2500μs was applied to the rod electrode. Lightning discharge tests of a 1:30 scale wind turbine model with 3m air gaps were performed and the discharge process was observed. Three side receptors were used for Lightning protection system (LPS) of wind turbine blade (WTB). Distance between each receptor was 40cm and 1 st receptor had 5cm distance from tip of the WTB. Standard switching impulses (negative and positive) were applied to the WTB with different orientations and rotating speed. The experimental results demonstrated that when negative switching impulses were applied to the wind turbine blade, all the lightning discharges hit on the 1 st receptor; however, in the case of positive switching impulse, some discharges also hit on the other receptors, blade surface and nacelle of WTB. The attachment points remain same when the blade is stationary or rotating. The analysis revealed that polarity of switching impulse has significant influence on attachment point, and the rotation has little influence during the attachment process. The results can contribute to optimize the design of LPS of wind turbine blade.

ORCID iDs

Arif, Waqas, Li, Qingmin, Guo, Zixin, Ellahi, Manzoor, Wang, Guozheng and Siew, Wah Hoon ORCID logoORCID: https://orcid.org/0000-0003-4000-6856;
  • Item type:Book Section
    ID code:65284
    Dates:
    Date
    Event
    8 February 2018
    Published
    15 December 2017
    Accepted
    Notes:© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:27 Aug 2018 13:50
    Last modified:11 Nov 2024 15:15
    URI:https://strathprints.strath.ac.uk/id/eprint/65284
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