A STUDY ON DYNAMIC MODEL OF WIND TURBINE GENERATOR SETS

The shaft system of variable speed wind turbine generator set based on doubly-fed induction generator is fully studied in this paper and is modeled with equivalent lump mass method and dynamic equations. Therefore, combined with the generator model, an 8-order model described by differential equations set is developed. Mechanical dynamic is taken into consider in this model as well as electrical dynamic, which makes up for the over simplifications of models in literatures. Simulation results are compared with those of simplified model. The presented model can be used to design the control system more effectively, and to analyze the dynamic of wind power generation systems.