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[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - Measurements of UWB Pulse Propagation Along a Wind Turbine Blade at 1 to 20 GHz
摘要： This paper describes propagation measurements of an Ultra Wide Band (UWB) pulse along a full-scale wind turbine blade. The aim is to use the UWB channel characteristics to determine the deflection of the wind turbine blade under different wind loads. The frequency response is measured from 1 to 20 GHz and by use of Fast Fourier Transform (FFT) studied the delay domain. It has been found challenging to determine the deflection of the blade only by looking at the delay difference between the Line-Of-Sight (LOS) pulse and a pulse reflected from the blade. To determine from which area of the blade the reflection originates a ray-tracing study incorporating a model of the curvature of the blade have been conducted. This showed the area causing the reflections depended highly on the placement of the antenna on the wind turbine blade.
关键词： Time of Arrival,UWB pulse,Wind turbine blade,UWB ranging,UWB channel
更新于2025-09-04 15:30:14
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Pest Control Lamp in Green Food Bases Based on Wind-solar Complementary Generation System
摘要： According to the energy complementary characteristics of wind energy and solar energy in time and space, in this study, the wind turbine and solar cells are used to design a pest control lamp in green food bases powered by a small power wind-solar complementary supply system and the intelligent controller is used to charge and discharge the batteries, realizing various protection functions. Application shows that the pest control lamp in green food bases system has the advantages of low manufacturing cost and high reliability, suitable for being used in farmland and woodland which are far from the grid.
关键词： generation system,green food bases,pest control lamp,Battery,wind turbine,solar cell
更新于2025-09-04 15:30:14