Reliable and lightning‐safe monitoring of wind turbine rotor blades using optically powered sensors
Reliable and lightning‐safe monitoring of wind turbine rotor blades using optically powered sensors
复制标题
使用光电传感器对风力涡轮机转子叶片进行可靠且防雷的监控
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
W. Stork
中科院分区：
文献类型：
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作者：
K. Worms;C. Klamouris;F. Wegh;L. Meder;Daniel Volkmer;S. Philipps;S. K. Reichmuth;H. Helmers;A. Bett;J. Vourvoulakis;C. Koos;W. Freude;J. Leuthold;W. Stork
带有光纤传感器的叶片状态监测系统吸引了很多关注，因为它们可以抵抗雷击，这是叶片长度增加的主要问题。然而，光纤传感器系统比其电子对应物更复杂且更昂贵。我们描述了一种新的叶片状态监测系统，它结合了光纤的雷电安全性和电子传感器的可靠性和成本效益。光纤将数据从叶片传输到集线器，此外，它们还为操作叶片中的传感器单元提供电力。为了实现对雷电感应电磁场的全面保护，需要对传感器单元进行适当的屏蔽。我们目前的结果的可靠性，一个新开发的原型的基础上，光动力传感器。在现场试验中，该装置成功地监测了1.5兆瓦风力涡轮机的叶片振动，为期23个月。版权所有© 2016约翰威利父子有限公司.
Blade condition monitoring systems with fiber-optic sensors attract much attention because they are resistant to lightning strikes, a major issue with increasing blade lengths. However, fiber-optic sensor systems are more complex and more expensive than their electronic counterparts. We describe a new blade condition monitoring system, which combines the lightning safety of optical fibers with the reliability and cost-effectiveness of electronic sensors. The optical fibers transport data from the blades to the hub, and in addition, they provide the electrical power for operating the sensor units in the blades. To achieve full protection against lightning-induced electromagnetic fields, an appropriate shielding of the sensor units is required. We present results on the reliability of a newly developed prototype based on optically powered sensors. In a field trial, the unit monitored successfully the blade vibrations of a 1.5 MW wind turbine for a period of 23 months. Copyright © 2016 John Wiley & Sons, Ltd.