基于距离权重向量优化模型的虚端子自动连接方法

Automatic Connection Method of Virtual Terminators Based on Optimization Model of Distance Weight Vectors

为了区分传统的变电站电缆连接,虚端子的概念被提出来。虚端子连接是智能变电站二次设计的主要内容。当前虚端子连接以人工方式为主,工作量很大且容易出错,对智能变电站的安全运行造成隐患。提出了一种基于距离权重向量优化模型的虚端子自动连接方法,实现虚端子的自动连接。该方法基于编辑距离定义了虚端子连接的相似度,并通过虚连接的样本数据建立优化模型,同时采用粒子优化算法计算距离权重向量,使编辑距离相似度能够适应各个厂家生产的设备。最后,基于相似度对2个待处理的IED（智能电子设备）中的虚端子进行匹配,同时给出了匹配的可信度。算例结果表明,该方法可准确实现虚端子的自动连接,有效减轻变电站建设的工作量,提高虚端子的设计质量。

Concept of virtual terminators was proposed to distinguish them from traditional substation cable connectors. Connection between virtual terminators is the main content of smart substation secondary design. Current virtual terminator connection is based on manual mode. It is a vast workload and error-prone, possibly leading to hidden dangers for safe operation of smart substations. This paper puts forward a method based on optimization model of distance weight vectors in relation to automatic connection of virtual terminators. This method defines similarity of virtual terminator connections based on edit distance. The distance weight vector is calculated with the optimization model, built with virtual terminator connection sample data and computed with particle optimization algorithm, so that the edit distance similarity can adapt to the equipment produced by various manufacturers. Finally, virtual terminators in two pending intelligent electronic devices are matched on basis of their similarity, and connection credibility is given at the same time. The method can accurately realize automatic connection of virtual terminators, effectively reduce workload of substation construction, and improve design quality of virtual terminators.