but leads to a generator design where conventional damper windings are ineffective as there is too little space.
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