An introduction on wind power grid code and dynamic simulation

The grid codes being introduced by the TSOs in USA, Denmark, Germany, Scotland and Ireland are analyzed with a special view to the requirement on the dynamic modeling of wind turbine generators. The basic aspects of four typical of wind turbines types are discussed. As an example, the simulation results on a fixed-speed induction generator wind turbine and a variable-speed doubly-fed induction generator wind turbine are presented respectively. The studies indicate that wind turbine generator has a lot of unique characteristics different from that of synchronous generators or motors. Their impact on the power system planning and operation should be studied carefully with appropriate models. Therefore, the grid coded updating and the wind turbine dynamic modeling are important topics in the power system nowadays.