基于最佳聚类准则的多级模糊态势评估方法

针对态势评估中评估因素的不确定性、模糊性和模糊集划分、隶属函数需事先给定以及忽略了数据分布特点对评估结果影响的问题,提出了基于最佳聚类准则的多级模糊综合评判态势评估方法。根据最佳聚类准则得到最佳聚类数和聚类中心后完成数据属性的模糊集划分及隶属函数的确定,建立了基于单因素的主因素和加权平均的一级模糊评估模型,利用层次分析法得到所有因素对评估结果的影响权值,并建立所有因素的主因素和加权平均的二级模糊评估模型,将其应用到民航灾难态势评估过程,得到了较好的态势评估结果。通过对两种模型的评价,得出加权平均模型的态势评估结果更准确。

Double objective area optimization of distributed generation

For planning the capacity and position of distributed generation (DG) rationally, this paper proposed a method, double objective area optimization of distributed generation. First it established a double objective optimization mode, then defined area optimization matrix and capacity constraints matrix in order to comply with the actual requirements of distribution network. And it adopted QPSO to optimize the capacity and location of DGs. It carried out plenty of simulations on the IEEE 33 bus test system. The results show the proposed distributed power area optimization method can optimize the capacity and location of DG accurately.