Lightning attachment characteristic of wind turbine generator: Experimental investigation and prediction method based on simulations
Abstract As the height of wind turbine increases, the lightning strike accident has become a non‐negligible issue. In this paper, the lightning attachment characteristic of a 2‐MW wind turbine generator (WTG) is investigated using a model with a reduced scale of 100. The WTG model is equipped with r...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-02-01
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| Series: | Wind Energy |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/we.2790 |
| _version_ | 1797955251051954176 |
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| author | Mi Zhou Jingkang Huang Jiaer Chen Weihan Zhao Chang He Li Cai Jianguo Wang |
| author_facet | Mi Zhou Jingkang Huang Jiaer Chen Weihan Zhao Chang He Li Cai Jianguo Wang |
| author_sort | Mi Zhou |
| collection | DOAJ |
| description | Abstract As the height of wind turbine increases, the lightning strike accident has become a non‐negligible issue. In this paper, the lightning attachment characteristic of a 2‐MW wind turbine generator (WTG) is investigated using a model with a reduced scale of 100. The WTG model is equipped with receptors on the blades and a lightning rod on the nacelle, both serving as its external lightning protection system (LPS). The high‐voltage electrode, which delivers a lightning impulse voltage from a Marx generator, is used to simulate the final stage of downward negative lightning strikes from 29 coming‐leader positions. The experimental results indicate that lightning leaders from either front directions or side directions could be intercepted effectively by LPS, whereas the back‐direction lightning could not. Moreover, with the increase of striking distance, the capture ratio for the insulation part of blade decreases. Electric field intensity distribution simulations for the full‐scale WTG model, using conditions similar to their experimental counterparts, are conducted and compared with the lightning attachment distribution. Based on classical electro‐geometrical model, a simulative method is proposed to predict the lightning attachment distribution of WTG. Our results indicate that it is feasible with this method to produce a satisfactory approximation to the experimentally obtained lightning attachment distribution. |
| first_indexed | 2024-04-10T23:30:13Z |
| format | Article |
| id | doaj.art-fdf42338fabb48d5baa20abab479a786 |
| institution | Directory Open Access Journal |
| issn | 1095-4244 1099-1824 |
| language | English |
| last_indexed | 2024-04-10T23:30:13Z |
| publishDate | 2023-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Wind Energy |
| spelling | doaj.art-fdf42338fabb48d5baa20abab479a7862023-01-12T07:11:10ZengWileyWind Energy1095-42441099-18242023-02-0126213114410.1002/we.2790Lightning attachment characteristic of wind turbine generator: Experimental investigation and prediction method based on simulationsMi Zhou0Jingkang Huang1Jiaer Chen2Weihan Zhao3Chang He4Li Cai5Jianguo Wang6School of Electrical Engineering and Automation Wuhan University Wuhan 430072 ChinaSchool of Electrical Engineering and Automation Wuhan University Wuhan 430072 ChinaSchool of Electrical Engineering and Automation Wuhan University Wuhan 430072 ChinaSchool of Electrical Engineering and Automation Wuhan University Wuhan 430072 ChinaSchool of Electrical Engineering and Automation Wuhan University Wuhan 430072 ChinaSchool of Electrical Engineering and Automation Wuhan University Wuhan 430072 ChinaSchool of Electrical Engineering and Automation Wuhan University Wuhan 430072 ChinaAbstract As the height of wind turbine increases, the lightning strike accident has become a non‐negligible issue. In this paper, the lightning attachment characteristic of a 2‐MW wind turbine generator (WTG) is investigated using a model with a reduced scale of 100. The WTG model is equipped with receptors on the blades and a lightning rod on the nacelle, both serving as its external lightning protection system (LPS). The high‐voltage electrode, which delivers a lightning impulse voltage from a Marx generator, is used to simulate the final stage of downward negative lightning strikes from 29 coming‐leader positions. The experimental results indicate that lightning leaders from either front directions or side directions could be intercepted effectively by LPS, whereas the back‐direction lightning could not. Moreover, with the increase of striking distance, the capture ratio for the insulation part of blade decreases. Electric field intensity distribution simulations for the full‐scale WTG model, using conditions similar to their experimental counterparts, are conducted and compared with the lightning attachment distribution. Based on classical electro‐geometrical model, a simulative method is proposed to predict the lightning attachment distribution of WTG. Our results indicate that it is feasible with this method to produce a satisfactory approximation to the experimentally obtained lightning attachment distribution.https://doi.org/10.1002/we.2790electric field intensitylightning attachmentpredicting methodstriking distancewind turbine generator (WTG) |
| spellingShingle | Mi Zhou Jingkang Huang Jiaer Chen Weihan Zhao Chang He Li Cai Jianguo Wang Lightning attachment characteristic of wind turbine generator: Experimental investigation and prediction method based on simulations Wind Energy electric field intensity lightning attachment predicting method striking distance wind turbine generator (WTG) |
| title | Lightning attachment characteristic of wind turbine generator: Experimental investigation and prediction method based on simulations |
| title_full | Lightning attachment characteristic of wind turbine generator: Experimental investigation and prediction method based on simulations |
| title_fullStr | Lightning attachment characteristic of wind turbine generator: Experimental investigation and prediction method based on simulations |
| title_full_unstemmed | Lightning attachment characteristic of wind turbine generator: Experimental investigation and prediction method based on simulations |
| title_short | Lightning attachment characteristic of wind turbine generator: Experimental investigation and prediction method based on simulations |
| title_sort | lightning attachment characteristic of wind turbine generator experimental investigation and prediction method based on simulations |
| topic | electric field intensity lightning attachment predicting method striking distance wind turbine generator (WTG) |
| url | https://doi.org/10.1002/we.2790 |
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