WIND TURBINE MONITORING

摘要

A method of detecting the formation of ice on the blades of a wind turbine 1 . The wind turbine has at least one turbine blade 2 mounted to a rotor and provided wit h at least a first strain sensor 4 for measuring mechanical strain of the turbine blade. The method comprises detecting changes in an output signal of the strain sensor 4 due t o changes in the mass of the turbine blade 2 caused by the formation of ice on the turbin e blade.