The experience of the last decade showed that incorrect adjusted blade angles are detected very often. Deviations of the rotor blade angles within one rotor blade set are very problematic for the structure of the wind turbine because vibrations in rotor frequency are induced. This leads to massive additional wear of the meachanical components.
A deviation of the blade angles of more than 0.4 ° can already lead to a significant aerodynamic rotor imbalance. This imbalance can be avoided by checking the synchronous adjustment of the rotor blades.
On base of our long-term experiences we are able to realize the blade angle measurement with an accuracy of ± 0.1°. So, we precisely detect whether the rotor blades are optimally adjusted or not.
Wrong adjusted blade angles potentially cause significant power loss of the turbine and reduction of the energy yield. With our measurement method the offset angles and the blade twist of rotor blades can be analysed. This is the base for optimal offset angle adjustment of the rotor blades.
Beside the described blade angle measurement also the following geometric parameters can be checked:
» Normative-actual value comparison of the profile parameters
» Normative-actual value comparison of the blade twist
» Normative-actual value comparison of the blade length
We are offering measures to solve your problems concerning energy yield losses and (remarkable) vibrations caused by the rotor blades of your wind turbine!