Dynamic laser measurements on wind turbines

 

 

We offer mobile measurements on wind turbines.  With the laser system developed by us, aerodynamic and mass-excited imbalances can be detected.

 

The measurements are carried out on the running turbine.

 

Advantages of the method:

 

  • No energy losses due to downtimes
  • Measurements under real operating conditions

 

The measurement results are available on site and can be used immediately for corrective measures.

 

 

 

For the measurements, a clear view of the turbine in wind direction at a distance of approx. 100m is required.

 

The following measured variables are determined and analyzed for the evaluation of the turbine behavior:

 

  • Profile contours of the blades at 2 sections
  • Speed changes
  • Movements of the tower at two heights
  • Tower clearance in the tip area

 

Example measurement results before and after correction of the imbalances:

 

Initial measurement with aerodynamic imbalane

Pitch angles out of tolerance

 

Tower movement with aerodynamic inbalance

 

Tower movement with mass imbalance - FFT analysis

Follow-up measurement with correction of blade angles

Pitch angles within tolerance

 

Tower movement without aerodynamic imnbalance

 

Tower movement without mass imbalance - FFT analysis


Sample report for download:

 

Download
Musterbericht ROMEG aero and mass DE I.p
Adobe Acrobat Dokument 239.3 KB