Analysis of Factors Affecting Wind Farm Output Power

As the output of the wind generation system depend on factors such as wind speed, air density and so on, and it is intermittent and hard to control, large-scale wind power connected to the grid have substantial impacts on the stability of power systems. The development of wind power forecasting technology reduce the negative impact of wind power. In order to improve the accuracy of the forecasting system, it is necessary to have a deep understanding of the output characteristics of the wind power generation system. This paper firstly analyzes the influence of the large scale wind power system connected onto the grid and then introduces the principle and the factors which affect the wind power output. Based on the history data of a 50MW wind farm and the statistical method, the paper qualitatively and quantitatively analyzes the wind power output performance, and describes the fluctuation range and fluctuation probability distribution of wind farm output power at different scales. Finally, the conclusions of this study will provide the output characteristics of wind farms under different meteorological factors and the fluctuation characteristics of wind farms at different time scales.