A study of stability effects in forested terrain

The Science of Making Torque from Wind 2012

Desmond, Cian J.^1 ; Watson, Simon^1

CREST, School of Electronic and Electrical Engineering, Loughborough University, Holywell Park, Loughborough, Leicestershire

LE11 3TU, United Kingdom^1

关键词: Complex sites;    Fast response;    Obukhov length;    Reliable results;    Sonic anemometer;    Stability effects;    Stability metrics;    Wind energy generation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/555/1/012027/pdf
DOI  :  10.1088/1742-6596/555/1/012027

来源: IOP

【 摘 要 】

Data from four well instrumented met masts located in heavily forested European sites in different locations and terrain types are examined. Seven stability metrics are applied to the data sets and a novel method is used to identify the metric which most consistently identifies stability events of importance for wind energy generation. It was found that the Obukhov length, as calculated by fast response sonic anemometer, provides the most reliable results in these highly complex sites. It was also found that non-neutral stabilities can be expected a significant portion of the time for wind speeds of less than 10 m/s at the considered sites.