Lidar Turbulence Measurements for Wind Energy

Jakob Mann, Ameya Sathe, Julia Gottschall, Michael Courtney

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Modeling of the systematic errors in the second-order moments of wind speeds measured by continuous-wave (ZephIR) and pulsed (WindCube) lidars is presented. These lidars use the velocity azimuth display technique to measure the velocity vector. The model is developed for the line-of-sight averaging and the full extent of conical scanning. The predictions are compared with the measurements from the ZephIR, WindCube and sonic anemometers at a flat terrain test site, under different atmospheric stability conditions. It is observed that the systematic errors are up to 90% for the vertical velocity variance, whereas they are up to 70% for the horizontal velocity variances. The systematic errors also vary with atmospheric stability, being lowest for the very unstable conditions. It is concluded that with the current measurement configuration, these lidars cannot be used to measure turbulence precisely.
Original languageEnglish
Title of host publicationProgress in Turbulence and Wind Energy IV : Proceedings of the iTi Conference in Turbulence 2010
Editors Martin Oberlack, Joachim Peinke, Alessandro Talamelli, Luciano Castillo, Michael Hölling
PublisherSpringer Science+Business Media
Publication date2012
Pages263-270
ISBN (Print)978-3-642-28967-5
ISBN (Electronic)978-3-642-28968-2
Publication statusPublished - 2012
EventiTi Conference in Turbulence 2010 - University Center of Bertinoro, Bertinoro, Italy
Duration: 19 Sep 201022 Sep 2010

Conference

ConferenceiTi Conference in Turbulence 2010
LocationUniversity Center of Bertinoro
CountryItaly
CityBertinoro
Period19/09/201022/09/2010
SeriesSpringer Proceedings in Physics
Number141
ISSN0930-8989

Cite this

Mann, J., Sathe, A., Gottschall, J., & Courtney, M. (2012). Lidar Turbulence Measurements for Wind Energy. In M. Oberlack, J. Peinke, A. Talamelli, L. Castillo, & M. Hölling (Eds.), Progress in Turbulence and Wind Energy IV: Proceedings of the iTi Conference in Turbulence 2010 (pp. 263-270). Springer Science+Business Media. Springer Proceedings in Physics, No. 141