Based on the Jensen model and Lissaman model and combined the frequency distribution model of wind speed and steady-state model of wind turbine generator

an integrated model for large wind farm is proposed which is connected directly to the distribution grid. Considering the energy loss caused by wake effect and impact of topographical factor on wind speed of wind turbine in different location

the output of whole wind farm can be evaluated via the model. Then

the model is applied in the IEEE 14-bus test feeder to analyze the impact of wind farm on nodal voltage of power system and give reference for reducing voltage fluctuation. Moreover

the variable transformation is adopted to estimate the parameters of three-parameter Weibull distribution function.