Studies on security capacity of wind farms containing VRB energy storage system

This paper proposes into determining the security capacity of wind farms containing VRB energy storage system. To achieve these we firstly build the model of the doubly fed induction generator and VRB model. After studying their characteristic, a study case of local grid integrated with a wind farm is simulated in Matlab/PSAT. Finally security capacity of the wind farm under several situations is studied. It concluded that the energy storage devices have significant influence on the security capacity of the wind farm.