ROMO Wind has frequently experienced that the basic pitch setting of individual rotor blades on many wind turbines are not adjusted correctly. Blade pitch angles often also vary among identical turbine types in the same wind farm. Stall regulated turbines have a fixed blade pitch angle, but also here it is critical that the blade angles are correct and identical. Blade pitch errors of only 0,2 degrees can reduce the power output from a wind turbine and increase the wind loads. It is therefore of considerable economical interest to the wind turbine owner that the blade pitch angle is absolutely correct.
ROMO Wind has developed a proprietary measurement method using advanced video equipment and image analysis to quickly record the actual individual blade pitch settings. This equipment is also used for identification of potential damages on the individual rotor blades. ROMO Wind offers both static (when the rotor is stationary) and dynamic (when the rotor is rotating) pitch analysis, and ROMO Wind has demonstrated surprising power losses and damaging changes of the rotor blade pitches, when the turbine is in operation. ROMO Wind believes that dynamic pitch analysis should be mandatory analysis prior to the commissioning of all new wind turbines.