直接优化方法及其在负荷模型参数辨识中的应用

A DIRECT OPTIMIZATION METHOD AND APPLICATION TO IDENTIFICATION OF LOAD MODEL PARAMETERS

根据负荷模型参数辨识问题的提法，提出利用简单、直观、不需要计算有关导数值、不需要一维搜索的步长加速直接优化方法进行负荷模型参数寻优，并且详述了参数寻优的过程。该方法不局限于模型的具体形式，具有广泛的适用性，特别适用于目标函数关于待辨识参数无显式表达式的模型参数辨识问题。对一实际工业用户负荷模型参数辨识表明，步长加速法优于常用的标准格式线性最小二乘法。

This paper presents a direct optimization method for identification of load modelparameters. The advantages and the optimum procedures for this method are introduced,and the capability of this method used for the parameters identification of load models withdifferent forms is demonstrated. Based on the field measurement data, the least squaresmethod and the direct optimization method are compared for a realistic system load modeling.