Wind energy resource assessment and derivation of characteristic wind speed in wind field of Inner Mongolia

In this paper, the wind resources of twenty four regions of Inner Mongolia were assessed. The wind atlas was presented using the WAsP software based on the wind datas of twenty four regions in Inner Mongolia during 1998-2008, which were provided by the China meteorological date sharing service system. Using the Weibull probability density function of wind speed and Weibull distribution function of output power of wind turbine, the extreme value of the two functions were obtained Furthermore, two formulas of the cut-in wind speed and rated wind speed were derived. Finally the cut-in wind speed and rated wind speed for six regions in Inner Mongolia under different wind resource condition were also calculated.