一二次融合柱上开关组合加权模糊状态评价

Composite Weighing Fuzzy State Assessment on the Primary and Secondary Fusion Pole-mounted Switch

信息物理融合技术增强了配电网一二次设备间相互耦合和影响,为全面反映柱上开关一、二次部分整体的运行状态,在当前的柱上开关运行状态在线监测指标体系基础上,针对柱上开关一二次融合的特性提出了二次部分与非运行状态评价指标,采用组合加权法确定指标权重并结合模糊综合评价法对一二次融合柱上开关状态进行评估。在权重设置上,采用熵权法分析柱上开关设备在一个巡检周期内的状态量变化趋势,以突出其在具体阶段各指标的数据劣化变值权重。进而综合数据劣化变值权重与指标重要度定值权重对指标赋权。最后,采用柱上开关的实际运行监测数据进行综合评估分析,算例结果验证了该方法相比于定权法更能准确评估柱上开关运行状态。

Cyber-physical fusion enhances the coupling and influence of primary and secondary equipment in distribution network. To fully reflect the operating state of primary and secondary components of pole-mounted switch, this paper, in view of the characteristics of the primary and secondary fusion, proposes the evaluation index for the paper adopts the entropy weight method to analyze the state quantity change trend of the polemounted switch in an inspection cycle, which can highlight the weight of deterioration index of specific equipment in specific stages. Moreover, this paper combines the data deterioration weights and the index importance weights to weigh the index synthetically. Finally, the actual operation monitoring data of the polemounted switch is used for comprehensive evaluation and analysis. The results of the example verify that the method in this paper can more accurately evaluate the pole-mounted switch operation status than the fixed weight method.