Wind Turbine Blade Deflection Sensing System Based on UWB Technology

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Abstract

A microwave sensing system for estimating deflection of a wind turbine blade is presented. The system measures distances at two 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 UWB 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 %.
Original languageEnglish
Title of host publicationAntennas and Propagation in Wireless Communications (APWC), 2016 IEEE-APS Topical Conference on
Place of PublicationCairns, Australia
PublisherIEEE
Publication dateSep 2016
Edition6th
Pages260-263
ISBN (Electronic)978-1-5090-0470-6
DOIs
Publication statusPublished - Sep 2016
Event2016 International Conference on Electromagnetics in Advanced Applications / IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications - Cairns, Australia
Duration: 19 Sep 201623 Sep 2016
http://www.iceaa-offshore.org

Conference

Conference2016 International Conference on Electromagnetics in Advanced Applications / IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications
CountryAustralia
CityCairns
Period19/09/201623/09/2016
Internet address

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Cite this

Franek, O., Zhang, S., Jensen, T. L., Eggers, P. C. F., Olesen, K., Byskov, C., & Pedersen, G. F. (2016). Wind Turbine Blade Deflection Sensing System Based on UWB Technology. In Antennas and Propagation in Wireless Communications (APWC), 2016 IEEE-APS Topical Conference on (6th ed., pp. 260-263). IEEE. https://doi.org/10.1109/APWC.2016.7738172