负荷动特性综合方法研究

针对如何建立同类负荷动特性的综合模型问题,提出了基于实测响应空间的负荷动特性直接综合方法.该方法首先应用重心法确定同一类负荷特性的聚类中心,再通过对聚类中心等效样本进行参数辨识,以得到的模型参数作为该类负荷特性的综合模型参数.通过对某一变电站现场采集的负荷特性数据进行综合建模,结果表明该方法正确有效,而且其实现比综合辨识建模以及参数加权平均综合建模更为简便.

Study on the Synthesis Methods for Dynamic Load Characteristics

A new direct synthesis method for dynamic load characteristics based on measured response space was presented to solve the problem of how to establish the synthetic model of dynamic load characteristics in the same classification. This method used the center of gravity method to obtain the clustering center of one dynamic load characteristics classification,and by identifying the clustering center equivalent sample,the synthetic load model of this classification was obtained.By synthesizing the dynamic load characteristics data collected from a substation,the correctness and effectiveness of the new method has been proved.And this method is more convenient than "collectivity identification modeling" and "parameters weighting-mean synthesis modeling".