The UpWind project is a European research project that focuses on the necessary up-scaling of
wind energy in 2020. Among the problems that hinder the development of wind energy are
measurement problems. For example: to experimentally confirm a theoretical improvement in
energy production of a few percent of a new design by field experiments is very hard to almost
impossible. As long as convincing field tests have not confirmed the actual improvement, the
industry will not invest much to change the turbine design. This is an example that clarifies why
the development of wind energy is hindered by metrology problems (measurement problems).
Other examples are in the fields of:
• Warranty performance measurements
• Improvement of aerodynamic codes
• Assessment of wind resources
In general terms the uncertainties of the testing techniques and methods are typically much
higher than the requirements. Since this problem covers many areas of wind energy, the work
package is defined as a crosscutting activity.
The objectives of the metrology work package are to develop metrology tools in wind energy to
significantly enhance the quality of measurement and testing techniques. The first deliverable
was to perform a state of the art assessment to identify all relevant measurands. The required
accuracies and required sampling frequencies have been identified from the perspective of the
users of the data (the other work packages in UpWind). This work led to the definition of the
Metrology Database, which is a valuable tool for the further assessment and interest has been
shown from other work packages, such as Training.
This report describes the activities that have been carried out in the Work Package 1A2 Metrology
of the UpWind project. Activities from Risø are described in a separate report: T.F. Pedersen
and R. Wagner, ‘Advancements in Wind Energy Metrology UPWIND 1A2.3’, Risø-R-1752.
- Remote sensing and measurement technique