基于半经验公式的风力机尾流模型研究  

Research on the Wake Model of Wind Turbine Based on Semi-empirical Formula

作　　者：张镇[1] 张晓东[1] 

机构地区：[1]华北电力大学能源动力与机械工程学院,北京102206

出　　处：《现代电力》2012年第2期64-67,共4页Modern Electric Power

基　　金：国家国际科技合作计划资助(2010DFA64600)

摘　　要：以瑞典航空研究院(FFA)、东京大学及荷兰能源研究中心(ECN)的风洞实验为参照,以探究半经验公式类型的风力机尾流模型为目的,验证了Jensen模型和改进Jens-en模型。采用上述两个半经验模型,编写计算程序,然后按照上述每个风洞实验的参数,设定计算条件,计算风力机下游的无量纲风速,再分别与相应的实验值进行比较。结果表明,在各自的适用条件下,上述两个模型都能比较精确地模拟风力机尾流特性。这证明上述两模型可以用于进一步研究风力机尾流效应,以进行风电场微观选址与布局优化。On the basis of wind tunnel experiments of Aviation Institute in Sweden（FFA）,the University of Tokyo and Energy Research Centre of Netherlands,with the purpose of exploring the wind turbine wake model of semi-empirical formula,the Jensen model and the improved Jensen model are verified.Adopting the two semi-empirical models,the calculating method is programmed.Then the calculated condition is set according to parameters of each wind tunnel experiments.The non-dimensional wind speed of downstream hub height is calculated and compared with relevant experiments respectively.The result shows that the two semi-empirical models could accurately simulate the characteristics of wind turbine wake under each of the applicable conditions.It＇s proved that the two models above can be further used to study wind turbine wake effect to make micro-sitting and layout optimization of wind farm.

关 键 词：风力机 尾流效应 尾流模型 半经验公式 JENSEN模型 改进Jensen模型 

分 类 号：TM614[电气工程—电力系统及自动化]