基于高速摄像机观测的风力发电机雷击发展过程

L. Cai, Yifeng Ke, Wangxiang Chu, Wei Liu, Mi Zhou, Jianguo Wang
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引用次数: 0

摘要

本文主要利用光学数据分析了2019年张北风电场某风力发电机自然向上闪电的发展过程。闪光持续时间超过283 ms,共有7次回射,峰值电流从-8.1 kA到-18.7 kA不等。7次击球前的leader的平均二维速度均大于106 m/s,其中RS6之前的leader最慢,为2.6 × 105 m/s, RS5最快,大于1.1 × 106 m/s。各RS的相对亮度积分和与截止时间呈显著的线性正相关,R2为0.96。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development Process of Lightning Stroke on Wind Turbine Based on High-Speed Camera Observation
This paper mainly analyzes the development process of a natural upward lightning flash initiated from a wind turbine in Zhangbei wind farm in 2019 using optical data. The duration of the flash was more than 283 ms, and there are totally 7 return strokes with their peak current varied from -8.1 kA to -18.7 kA. The average 2-D speed of the leaders preceding all 7 return strokes is greater than 106 m/s, with the leader preceding RS6 being the slowest at 2.6 x 105 m/s and RS5 being the fastest at greater than 1.1 x 106 m/s. There is a significant linear positive correlation between the sum of relative luminance integral and the cut-off time of each RS, and the corresponding R2 is 0.96.
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