Patent ID: 8480367

Claim:
The yawing system for a wind turbine comprising a tower construction and a nacelle, the yawing system comprising: a stationary part being connectable to or forming part of a tower construction of a wind turbine; a rotating part being connectable to a nacelle of a wind turbine, the rotating part being arranged adjacent to the stationary part in such a manner that the rotating part is allowed to rotate relative to the stationary part via a gear connection between the stationary part and the rotating part; wherein the rotating part comprises a plurality of modules, each comprising a basis part, the basis parts being at least substantially identical in size and shape, each module being configurable to perform various functions, the configuration of a module determining which function said module is able to perform, at least one of said modules being configured as a drive module adapted to drive a rotational movement of the rotational part relative to the stationary part, via the gear connection; wherein a configured module is replaceable with another configured module to perform a different function or is reconfigurable to perform a different function without altering the main design of the rotating part, and wherein a configured module belongs to a category of modules reflecting the function of the configured module, the categories of modules being selected from the group consisting of: drive modules, active braking modules, passive braking modules, damping modules, structural modules and covering modules.