Simulation and analysis of wind farm reactive power and voltage problems based on detailed model

With the scale of wind power connected to the main grid continuing to expand, reactive power and voltage problems of the wind farm are attracting more and more attention. In this paper, two electrical microscopic models are separately built which are based on two typical grid-connected wind farms combined the actual condition of Jiangsu grid in summer 2009, and the paper also carries on the simulations with the PSASP tool. The reactive power variation of wind farms is studied according to the simulation results. Meanwhile, the simulation results is compared with the statistical data of the power quality monitoring system, the two results are almost the same, which prove the models are reasonable.