Dynamic Behaviour and Modelling of Variable-Speed Wind Turbines

This paper investigates the stochastic and dynamic changes of wind turbine output power over time at different operating points. In particular, the probability distribution for a theoretical Maximum Power Point Tracking (MPPT) and a state-of-the-art MPPT are compared. These studies can help to evaluate the stability of future grids with a high proportion of wind energy. Furthermore, a reduced model is presented, allowing a time-efficient investigation of the observed phenomena.