Strain gauge measurements on a full scale tidal turbine blade

RENEWABLE ENERGY

卷:170

Article

Lake, Thomas¹  Hughes, Jack¹  Togneri, Michael¹  Williams, Alison J.¹  Jeffcoate, Penny²  Starzmann, Ralf³  Kaufmann, Nicholas³  Masters, Ian¹ 

[1] Swansea Univ, Coll Engn, Bay Campus,Fabian Way, Swansea SA1 8EN, W Glam, Wales

[2] La Belle Esperance, Sustainable Marine Energy, Edinburgh, Midlothian, Scotland

[3] SCHOTTEL HYDRO, Mainzer Str 99, D-56322 Spay Rhine, Germany

关键词: Tidal energy;    Instrumentation;    Strain gauges;    Floating platforms;    Marine renewable energy;   

DOI  :  10.1016/j.renene.2021.01.137

来源: Elsevier

【 摘 要 】

The development of tidal energy converters, and particularly floating tidal energy converters, is an area of increased development in recent years. Testing of a floating tidal energy device over winter 2017/18 led to an opportunity to record and examine strain of a full scale composite turbine blade under operational conditions, with comparison of generating and parked behaviours. Comparison of the recorded data shows that blade strain correlates well with both torque and thrust over the averaging periods specified in IEC62600-20 0, although examination of frequency spectra generated from the strain data show that higher frequency fluctuations in strain are not necessarily detectable in the larger scale thrust and torque recordings with this particular measurement arrangement. The need for well synchronised clocks on recording systems is also highlighted, along with a cross-correlation method used to recover the alignment of data from different systems to allow comparison between them over periods of a similar order of magnitude to the clock skew between the systems. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

【 授权许可】

Free