风电场风机叶片覆冰气象条件及覆冰模型研究进展

随着我国风电行业的快速发展,覆冰已经成为严重威胁风电场安全稳定运行的因素之一,针对这一问题,国内外学者陆续开展了相关研究。综合现有研究成果,从覆冰概况、研究方法分类、影响覆冰的因素、风机叶片覆冰期特点等方面做了总结。大量的研究成果显示：影响风机叶片覆冰的气象因素主要为环境温度、相对湿度、风速、液态水含量（Liquid Water Content,LWC）和体积中径（Median Volume Diameter,MVD）等。此外,冰风洞试验和数值仿真模拟方面已有很多成果,而覆冰模型法的研究还较少,后续研究的重点是开展对高分辨率数值预报产品的订正研究,构建适用于本地的风机叶片覆冰模型,为风电场提前预警覆冰期以采取融冰措施、合理安排生产等提供科学参考。

Research Progress on meteorological conditions and icing models of wind turbine blades in wind farm

With the rapid development of China"s wind power industry, icing has become one of the factors seriously threatening the safe and stable operation of wind farms. Aiming at this problem, scholars at home and abroad have carried out relevant research one after another. Based on the existing research results, this paper summarizes the general situation of icing, classification of research methods, factors affecting icing, characteristics of fan blade icing period and so on. A large number of research results show that the meteorological factors affecting fan blade icing are mainly ambient temperature, relative humidity, wind speed, LWC and MVD. In addition, many achievements have been made in the ice wind tunnel test and numerical simulation, but the research on the icing model method is still less, and further exploration is needed. The focus of the follow-up research is to carry out the revision research on the high-resolution numerical prediction products, build the local fan blade icing model, and give early warning of the starting time of icing for the wind farm to take ice melting measures Reasonably arrange production and provide scientific reference.