In wind industry power performance measurements on site is an increasing challenge due to the larger and larger
rotors. An IEC standard on power performance verification with nacelle anemometry, IEC61400-12-2 , has
been developed and was published 2013. However, nacelle anemometry has a number of drawbacks that makes
use of the standard with respect to nacelle anemometry difficult to apply in the field  . An option in the
standard is to use spinner anemometry, a type of wind sensor that measures wind speed on the spinner in front of
The report is based on spinner anemometer measurements from two adjacent wind turbines and a met-mast.
Due to the site layout, it is possible with the met-mast to measure the power curve of both turbines.
The report also presents a method for evaluation of uncertainty related to the spinner anemometer.
|Publisher||DTU Wind Energy|
|Number of pages||66|
|Publication status||Published - 2015|
|Series||DTU Wind Energy I|
This is an internal report and therefore not available for download.
- DTU Wind Energy I-0440
- DTU Wind Energy I-440
- DTU Wind Energy Report I-0440