The paper describes an alternative damping system whereby the stator is allowed limited rotational movement by connecting it to the wind turbine housing via a spring and a mechanical damper.
This arrangement allows greater damping of power-angle oscillations than is possible using conventional damper windings.
The response of the generator to step changes in driving torque is used to illustrate the effectiveness of such a design. The behaviour of the generator on both synchronisation and during operation in a varying wind is discussed to
demonstrate the feasibility of this new design