Evaluation of Ice Detection Systems for Wind Turbines, Part I: Status Quo, User Experience, Recommendations

Projektnummer 392

Atmospheric icing has a significant impact on the development and the operation of wind parks. Ice disturbs the aerodynamics of the rotor blades and thus causes production losses and increased noise emissions. Moreover, the additional ice loads may lead to extreme loads and increased fatigue. Iced wind measurement sensors at the wind turbine’s nacelle may lead to erroneous behaviour and security stops. During project development, wind measurements are disturbed by icing resulting in a higher uncertainty of the calculations of annual energy production and a higher cost of investment. Finally, ice throw and ice fall from the iced wind turbine rotor blades represent a significant safety risk for passersby and service personnel.

An optimized and efficient operation of wind parks under icing conditions has become a very important issue for the operators. Today, many promising approaches exist to tackle these issues, but there is still a considerable lack of reliability of the technical equipment as well as practical experience.

Development and operation of wind parks under icing conditions still has a pioneering character as standards and guidelines as well as technical solutions for planning and operation of wind parks under icing conditions are under development.

The project is structured into the following steps and tasks:

The project realisation will be supervised by the VGB Technical Committee Wind Energy.