REQUIREMENTS FOR THE CERTIFICATION OF ROTOR BLADES

摘要

In Germany, Denmark and India a wind turbine has to have a valid certification to get a building permission. In The Netherlands and most of the other European countries, in USA, Canada, Australia etc. investment groups and banks require a certification of the turbines. And this includes the certification of the rotor blades. The blades are highly stressed and are to be designed to withstand extreme loads, mainly the 50-year gust and fatigue (service live 20 years). In the following an overview is given of the necessary analyses and documentation as well as a comparison of the relevant standards and regulations.