基于调和平均合成的风能质量指数构建方法  

A Construction Method of Wind Energy Quality Index Based on Harmonic Mean Synthesis

作　　者：莫丰源 肖钊[1] 邓杰文 赵前程[1] 向德 MO Fengyuan;XIAO Zhao;DENG Jiewen;ZHAO Qiancheng;XIANG De(School of Mechanical Engineering,Hunan University of Science and Technology,Xiangtan 411201,Hunan,China;Hunan Institute of Metrology and Test,Changsha 410014,China)

机构地区：[1]湖南科技大学机电工程学院,湖南湘潭411201 [2]湖南省计量检测研究院,长沙410014

出　　处：《新能源进展》2025年第1期89-96,共8页Advances in New and Renewable Energy

基　　金：国家重点研发计划项目(2022YFF0608702);湖南省自然科学基金项目(2022JJ90012,2024JJ2031)。

摘　　要：风况变化过程的复杂性和多变性给风能质量评估带来了巨大的挑战。为解决这一问题,构建了风能指标评估和评分体系,提出了一种能全面反映风能质量的综合指数合成方法。首先,基于湍流强度、风切变、风转向和风功率密度四项指标,建立相应的评分体系。其次,通过线性插值为各指标分配分数,得到分数矩阵。再次,采用调和平均合成方法计算风能质量指数。该方法的计算结果能够全面反映风能质量,避免了现有分析的限制。最后,将风能质量指数与发电性能指数相结合进行验证。结果表明,对于同一风力发电机,风能质量指数和发电性能指数的变化趋势线的皮尔逊相关系数为0.606。对于不同风力发电机,风能质量指数的平均值和发电性能指数的平均值排序结果一致,即发电性能指数随着风能质量指数的变化而变化。因此,该方法能够有效评估风能质量。The intricacies and variability in the changing nature of wind conditions pose immense challenges in evaluating the quality of wind energy.A framework for assessing and scoring wind energy indicators was devised to tackle this issue,along with a comprehensive method for synthesizing an index that fully captures wind energy quality.Initially,scoring systems for four key indicators—turbulence intensity,wind shear,wind veer,and wind power density—were established.Subsequently,scores were assigned to each indicator using linear interpolation,resulting in a score matrix.Next,a harmonic mean synthesis method was utilized to compute the wind energy quality index.This method's calculations comprehensively reflect wind energy quality and mitigate constraints seen in current analyses.Finally,the wind energy quality index was cross-validated with the power generation performance index.The results show that for the same wind turbine,the Pearson correlation coefficient of the trend line of the wind energy quality index and the power generation performance index is 0.606.For different wind turbines,the results of the ranking of the average value of the wind energy quality index and the average value of the power generation performance index are consistent.In essence,the power generation performance index varies in accordance with changes in the wind energy quality index,highlighting the efficacy of this method in evaluating wind energy quality.

关 键 词：风能质量指数 发电性能指数 风力发电机 

分 类 号：TK8[动力工程及工程热物理—流体机械及工程]