基于超宽带技术的风力机叶片偏转传感系统

2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2016-09-01 DOI:10.1109/APWC.2016.7738172

O. Franek, Shuai Zhang, T. L. Jensen, P. C. F. Eggeijs, K. Olesen, Claus Byskov, G. F. Pedersen

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引用次数: 2

摘要

介绍了一种用于风力机叶片偏转估计的微波传感系统。该系统测量顶端的一个天线和叶片根部的两个天线之间的无超宽带(UWB)无线链路的距离，这允许通过三角测量来确定尖端的位置。介绍了一种角反射天线安装在叶片尖端，喇叭天线安装在叶片根部的实验装置。在对实验数据进行分析的基础上，着重分析了虚宽带链路的传播特性，重点研究了叶片引起的多径效应。结果表明，尽管存在多径传播的不利影响，该系统的测距精度仍达到1.5 cm，导致最大偏转误差为4.5%。

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Wind turbine blade deflection sensing system based on UWB technology

A microwave sensing system for estimating deflection of a wind turbine blade is presented. The system measures distances at mo ultrawideband (UWB) wireless links between one antenna at the tip and two antennas at the root of the blade, which allows for determination of the tip position by triangulation. An experimental setup with corner reflector antenna mounted at the tip and horn antennas at the root of a 37.3 m long blade is described. Analyzing the data from the experiment, special attention is given to the propagation aspects of the VWB links, with focus on the multipath effects caused by the blade. It is demonstrated that despite the adverse effects of the multipath propagation the ranging accuracy of the system amounts to 1.5 cm, leading to maximum error of deflection 4.5 %.

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2016 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)

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