风力发电机输出功率模型研究  

A Study on Power Output Models of Wind Turbine

作　　者：李冲[1,2] 郑源[3,4] 朱大胜[1] 刘友英[1] 李果[1] 

机构地区：[1]南京工程学院机械工程学院,江苏南京211167 [2]河海大学水利水电学院,江苏南京210098 [3]水资源高效利用与工程安全国家工程研究中心,江苏南京210098 [4]河海大学能源与电气学院,江苏南京210098

出　　处：《水力发电》2014年第8期123-125,128,共4页Water Power

摘　　要：风力发电机输出功率模型主要包括风力发电机基本功率方程模型和风力发电机功率曲线模型。风力发电机功率曲线模型包括假定的功率曲线模型和实际功率曲线模型,其中风力发电机的假定功率曲线模型包括线性模型、二次方模型、三次方模型、威布尔参数模型和指数模型等;实际功率曲线模型可以通过最小二乘法和三次样条插值技术等曲线拟合技术而得到,分别用这两种方法对WES 5 Tulipo风力发电机的输出功率进行了建模。结果表明假定的功率曲线模型是一些简化的模型,具有一定的可靠性,但是这些模型并没有准确的表示风力发电机的真实功率情况,而风力发电机的实际功率曲线模型可以真实可靠的反应其功率大小。The power output models of wind turbine include power equation model and power curve model. The models based on a presumed shape of power curve and actual power curve are included in the wind turbine power curve models respectively, in which, the linear model, quadratic model, cubic law model, Weibull＇s parameters model and exponential model are all used in the presumed shape of wind turbine power curve. The actual power curve model can be fitted by the least square method and the cubic spline interpolation technique, and the WES 5 Tulipo wind turbine output power is modeled by these two methods respectively. The models based on a presumed shape of power curve are some simplified models which has a certain reliability, but the accurate wind turbine power is not expressed in these models. The accurate wind turbine power can be achieved in the models based on actual power curves.

关 键 词：输出功率模型 最小二乘法 三次样条插值技术 风力发电机 

分 类 号：TM614[电气工程—电力系统及自动化]