Measurement configuration with the ROMEG

The ROMEG system consists of two high-frequency lasers positioned upwind of the rotor at a distance approximately equal to the hub height. These two lasers scan the blades in two positions, as well as the position of the tower between each blade passage. The result is a graph showing the averaged profile of each of the 3 blades, as well as a graph showing the movements of the tower depending on the rotor rotational speed.

Illustration of blade profiles measured by the ROMEG

Profiles with 0.2° deviation

Profiles with 0.6° deviation

Profiles with 1.2° deviation

Illustration of tower oscillations measured by the ROMEG

Oscillations with 0.2° deviation

Oscillations with 0.6° deviation

Oscillations with 1.2° deviation

Different ROMEG control points

Relative pitch angles +/- 0.15°
Radial splitting +/- 0.2°
Tower clearance +/- 50mm
Twist angle +/- 1°
Axial tower oscillation +/- 10mm