Modelling analysis in power system small signal stability considering uncertainty of wind generation

The probabilistic small signal stability analysis (PSSSA) considering uncertainty and randomness of wind generation is conducted in this paper. Firstly, the small signal model for wind farm with Doubly-fed Induction Generator (DFIG) type is presented. The stator flux-oriented vector control based method is utilized to implement stator active and reactive powers control in modelling rotor-side converter control strategy. Secondly, a probabilistic small signal stability analysis method based on Monte Carlo simulation is introduced to analyze the influence of uncertainties of wind generation. A case study is carried out on the IEEE New England test system to demonstrate the effectiveness and validity of the proposed model and method. Finally, some preliminary conclusions and comments were drawn based on the numerical results.