Flow Characteristics Of Wind Turbine Impeller And Its Correlation With Wind Condition

In recent years,the wind power industry has developed rapidly,especially in Hebei.At the same time,smog has gradually increased and developed into an important hidden danger to people’s health,especially in the capital Beijing area,which shows a high degree of consistency with the development of Hebei wind farm.Is it because the establishment of the wind farm affects the local climatic environment and thus weakens the atmospheric energy and leads to the spread of smog?When the wind from the northwest high wind blows through the wind farm,because the wind turbine absorbs wind energy and converts it into electric energy,it may cause the wind energy in the downwind direction to decrease and cause the wind speed to decrease.At the same time,because the wind blows on the haze,it is very important.The role of wind farms may lead to increased haze problems.Based on the data collection and summarizing the relevant researches on the regional impacts caused by wind farms at home and abroad,this paper analyzes the following aspects from Hebei in the upwind direction of Beijing.(1)Using the statistical method of Pearson correlation analysis to analyze the correlation between the increase of installed capacity of Hebei wind power and the increase of fog in Beijing;(2)According to the flow characteristics of the wind turbine impeller,the BEM theory based on the Wilson correction factor is used to calculate the percentage loss of wind energy before and after the wind farm is established under different wind conditions,and the downwind velocity is analyzed.influences;(3)The three-dimensional numerical simulation of the impeller in the wind farm is carried out by CFD.The influence of the wind turbine impeller on the downwind velocity at close range is analyzed,and the BEM theoretical model based on the Wilson correction factor is verified.This paper analyzes from the above aspects and draws the final conclusion:up to now,from the perspective of Pearson correlation analysis and impeller flow characteristics,the correlation between Hebei wind power development and Beijing haze problem is very weak.This conclusion provides preliminary ideas for the future development of the wind power industry and the analysis of wind power and atmospheric energy.