碳纤维叶片防雷系统的研究和设计_Polytech AS.pdf

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1、1 112 22 2Lightning protection of CFRP blade碳纤维叶片防雷系统的研究和设计碳纤维叶片防雷系统的研究和设计Javier L pezPolytech A/SElectrical and Mechanical,Advanced Engineering and Simulation高级工程与仿真团队负责人Tongxiang,CN 2025-03-203 3 3 3Lightning protection of blades叶片的防雷系统叶片的防雷系统Blades are struck叶片遭受雷击叶片遭受雷击4 4 4Where does lightning

2、strike?雷击会发生在哪里？雷击会发生在哪里？Lightning does not always strike on the top 雷击并非经常直击顶部雷击并非经常直击顶部Side flashes occur 侧闪发生侧闪发生 Due to structures immersed into low clouds and encountering intra-cloud travelling flashes.由于风机浸入低云层并遭遇云内传播的闪电。Low magnitude downward leaders that need to get very close to the struct

3、ures to produce the necessary field intensification to trigger a connecting leader.低强度的下行先导需要非常接近这些风机，才能产生足够的增强电场，从而触发一个先导的连接。By the time they are close enough,they may have surpassed the tip and be close to inboard regions of the structure.当它们足够接近时，可能已经越过了风机的顶端，而接近风机的内侧区域。Ip=200kA(LPL1)The electric

4、 field at the tip of the blade gets intense enough to trigger a connecting leader when the downward leader is still far from the blade当下行先导距离叶片仍然较远时当下行先导距离叶片仍然较远时叶尖的电场强度已经足够高叶尖的电场强度已经足够高就能够触发一个先导的连接就能够触发一个先导的连接d5 5 5Where does lightning strike?雷击会发生在哪里？雷击会发生在哪里？Lightning does not always strike on th

5、e top 雷击并非经常直击顶部雷击并非经常直击顶部Side flashes occur 侧闪发生侧闪发生 Due to structures immersed into low clouds and encountering intra-cloud travelling flashes.由于风机浸入低云层并遭遇云内传播的闪电。Low magnitude downward leaders that need to get very close to the structures to produce the necessary field intensification to trigger

6、a connecting leader.低强度的下行先导需要非常接近这些风机，才能产生足够的增强电场，从而触发一个先导的连接。By the time they are close enough,they may have surpassed the tip and be close to inboard regions of the structure.当它们足够接近时，可能已经越过了风机的顶端，而接近风机的内侧区域。Ip=10kAThe blade does not”see”the incoming leader until it is very close because the elec