一种基于三次样条插值的风电场出力预测评估方法  

A Method for Predicting and Evaluating Wind Farm Output Based on Cubic Spline Interpolation

作　　者：邱军[1] 孙力勇 樊庆东 QIU Jun;SUN Li-yong;FAN Qing-dong(China Quality Certification Centre,Beijing 100000,China)

机构地区：[1]中国质量认证中心,北京100000

出　　处：《电气开关》2023年第3期16-18,23,共4页Electric Switchgear

摘　　要：本文提出了基于三次样条插值曲线拟合的风电场功率评估方法,采用样条法来构造曲线。样条法是用一平滑曲线来对各主干点进行拟合的方法。它是通过构造多项式(一个或一组不同阶多项式)来形成一条把所有主干点连接起来的平滑曲线。本文通过三次曲线去拟合风电场出力曲线,进而构造出风电场出力预测的评估方法,其拟合效果比线性插值估计更接近于工程实际。This article proposes a wind farm power evaluation method based on cubic spline interpolation curve fitting,which uses the spline method to construct the curve.The spline method is a method of fitting each main point using a smooth curve.It is a smooth curve that connects all the main points by constructing a polynomial(one or a set of polynomials of different orders).In this paper,the cubic curve is used to fit the wind farm output curve,and then the evaluation method of wind farm output prediction is constructed.The fitting effect is closer to the engineering practice than the linear interpolation estimation.

关 键 词：风电场功率 拟合方法 三次样条插值 

分 类 号：TM61[电气工程—电力系统及自动化]