电力负荷静态样条函数模型

Spline Function Model of Static Electric Load

为了对负荷的静特性进行更好的分析和描述,引入了基于样条函数的静态电力负荷建模思想,通过对传统模型的结构进行分析,指出了传统模型产生较大误差的原因.结合样条函数的相关理论,提出了基于三次样条函数的负荷静态模型,并且给出了基于样条插值的建模方法.通过典型负荷的仿真计算,表明本负荷模型能够适应复杂的负荷特性描述,为未知模型结构情况下负荷特性的辨识提供了一种新的有效方法.

To facilitate the work in load static characteristic analysis and description,a new idea of static electric load characteristic based on spline function is introduced in this paper.On the basis of the analysis of the structure for traditional model,the reason of a higher error is pointed out in this paper.According to the theory of spline function,a new load static model is put forward based on three_order spline function, and the modeling method is also provided.Test results on typical load reveal that the load model can describe the static characteristic of complex load,this research provides a new effective method to identify load characteristic of unknown structure.