Li H.,Lanzhou University |
Li H.,Beijing Jipeng Investment Information and Consultant LTD. |
Zhu R.,China Meteorological Administration |
Wang R.,Beijing Jipeng Investment Information and Consultant LTD. |
And 2 more authors.
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | Year: 2014
Through wind turbulence intensity of daily and yearly variations of the actual situation in different kinds of regions and terrain, summed up their characteristics, and the influencing factors in different regions and different terrains. From the analysis result, the turbulence intensity of the daily and yearly had more obvious changes in the flat terrains, the variation in the complex terrain was similar with the flat terrains, but complex terrain normally has higher turbulence in the high layer than the lower level. The peak value of turbulence intensity diurnal variation was mainly related to the time of sunrise on the land the sooner sunrised, the sooner reached a peak value; The turbulence intensity of the daily and yearly changes are less pronounced in lake and coastal areas, the turbulence intensity of the daily and yearly variation was not obvious in the lake and the coastal areas, There is a big differences between turbulence intensity from low-rise and high-rise in the lake and the coastal areas. These law was mainly related to the different types of terrain roughness and the evolution of the atmospheric boundary layer. This article summarized the turbulence intensity and variation, then put forward the corresponding measures of wind turbine and wind farm design.