基于日负荷曲线的负荷分类和综合建模  

Load Clustering and Synthetic Modeling Based on Daily Load Curves

作　　者：鞠平[1] 陈谦[1] 熊传平[2] 黄丽[3] 方朝雄[3] 陈峰[3] 赵红嘎[3] 戴琦[1] 鄢安河[2] 付红军[2] 

机构地区：[1]河海大学电气工程学院,江苏省南京市210098 [2]河南省电力调度通信中心,河南省郑州市450052 [3]福建省电力调度通信中心,福建省福州市350003

出　　处：《电力系统自动化》2006年第16期6-9,共4页Automation of Electric Power Systems

基　　金：国家自然科学基金重大项目(50595412)。~~

摘　　要：针对广域电力系统中负荷节点面广量大的困难,提出了基于日负荷曲线的、将统计综合法与总体测辨法相结合的电力负荷综合建模思路。首先通过对全网所有220kV(或110kV)负荷节点典型日负荷曲线进行构成分析,得出各负荷节点中行业用电构成的负荷比例；然后采用谱系数平均距离聚类分析法对全网负荷节点进行分类；再根据分类结果和少量负荷节点的实测参数,推广获得所有节点的负荷模型参数。该方法已成功应用于河南电网和福建电网,结果表明新方法简单实用、效果良好,为广域电力系统的负荷建模提供了新途径。In view of the difficulties in load modeling of the wide area power grid and by referring to the daily load curve of the power grid, a synthetic load modeling methodology is proposed by integrating the component-based statistical synthesis approach and measurement-based identification approach. Following an analysis of the typical daily load curve of all the 220 kV （or 110 kV） load substations, the load composition in each substation is obtained. Then according to the load composition, all substations are classified with the hierarchical cluster analysis. With the clustering results, the load model parameters measured at several typical substations can be extended to other substations in the same class. The method has been successfully applied to Henan Power Grid and Fujian Power Grid. The results show the simplicity and effectiveness of the new method.

关 键 词：负荷建模 负荷构成 日负荷曲线 聚类分析法 

分 类 号：TM714[电气工程—电力系统及自动化]