分散式风电空气密度推导方法研究

Study on Derivation Method of Air Density of Distributed Wind Power

风力发电作为全球清洁能源之一,对绿色环保有着重要的意义,也是今后发展的重点能源。在风电场测风记录没有气温和气压数据,或者风电场的平均轮毂高度处海拔高度与气象站海拔高度相差较大时,则需要按照经验公式来估算,估算空气密度的准确程度将影响到风电场风能资源的评估结果。因此,研究国内外相关规定,研究在缺少数据的情况下合理的空气密度推导方法,优化现有规范内公式具有现实意义。

As one of the global clean energy, wind power generation is of great significance to green environmental protection and is also the key energy for future development. If there is no air temperature and pressure data in the wind measurement records of the wind farm, or the altitude at the average hub height of the wind farm is significantly different from the altitude of the meteorological station, it needs to be estimated according to the empirical formula, and the accuracy of the estimated air density will affect the evaluation results of the wind energy resources of the wind farm. Therefore, it is of practical significance to study the relevant regulations at home and abroad, study the reasonable air density derivation method in the absence of data, and optimize the formula in the existing specifications.