风力发电中全光纤风速传感器及制作工艺研究

All-fiber velocity sensors applicated in wind power generation and their fabrication process

为了实现风力发电场多点、远程风速检测,便于测量和风场风速物联网的构建,采用风杯来调制光纤布喇格光栅的方式,设计了一种全光纤风速传感器,通过光纤光栅波长的变化频率可以求出对应风速值,并对传感器设计结构进行了说明,介绍了传感器的制作封装工艺以及相关的设备和实验数据。结果表明,传感器运行稳定可靠,测量误差不超过0.16m/s,适合于风电场的多点大容量风速监测,对风力发电实际应用具有重大意义。

In order to realize wind field muhipoint and remote sensing, make it convenient to monitor wind speed and set up the internet of thing of wind field velocity, an all-fiber wind velocity sensor fabric was introduced with a wind-cup to modulate fiber Bragg grating wavelength, so that the wind velocity can be obtained based on the wavelength changing frequency. Design scheme was described in detail. Fabrication process of the probe was introduced emphatically and some experimental data were also presented. The results show that the system works stably and reliably. The system can achieve a location precision of O. 16m/s and this system is very suitable for large wind power generation in consideration of its large-capacity.