Probabilistic evaluation of wind turbine effects on power system transient behavior

As wind penetration in modern power grids increases, concerns have been expressed over its effect on power system dynamic behavior. Typically this has been evaluated through the solution of specific worst case scenarios. However this approach does not give a complete picture and its results may be misleading. This paper presents a Monte-Carlo based method for evaluating increasing wind penetration effects, through the development of voltage and frequency profiles for the power system buses. Wind turbine models and system operation considerations affecting the results are discussed. Simulations are carried out in software developed in Matlab/Simulink.