基于知识图谱的智能变电站一次设备信息检索研究  

Research on Smart Substation Primary Equipment Information Retrieval Based on Knowledge Map

作　　者：张子建[1] 刘俊宇[1] 梁煜[1] 黄晓欧 ZHANG Zijian;LIU Junyu;LIANG Yu;HUANG Xiaoou(State Grid Beijing Electric Power Company,Beijing 100031,China)

机构地区：[1]国网北京市电力公司,北京100031

出　　处：《电气传动》2022年第5期70-75,80,共7页Electric Drive

基　　金：国家自然科学基金(51777105)。

摘　　要：智能变电站作为智能电网战略的重要支点,随着智能变电站一次设备的不断增多,设备信息数据量呈指数级增长,传统的数据检索方法已经无法适应海量数据的处理要求,如何准确高效的检索变电站设备信息成为研究的焦点问题。因此提出了一种基于知识图谱的智能变电站设备一次信息检索方法,首先对智能变电站的一次设备信息进行分类,获取相关设备信息语料。然后,定义非结构化设备信息抽取框架,实现设备信息语料的高效抽取。再利用隐马尔科夫模型对设备信息进行分词,构建变电站一次设备信息知识图谱,实现设备信息的可视化展示,突破二维语义表格的局限。最后,结合知识图谱技术设计了智能变电站一次设备信息管理系统。实验表明基于知识图谱的智能变电站一次设备信息记录检索系统能提供准确的设备信息,实现智能变电站设备信息的高效检索。Intelligent substation is an important fulcrum of the smart grid strategy,with the increasing of primary equipment in smart substation,the amount of equipment information and data increases exponentially,traditional data retrieval methods have been unable to adapt to requirement of the massive data processing,how accurate and efficient retrieval substation equipment information become the focus of the research problem.Therefore,a method for the primary information retrieval of smart substation equipment based on knowledge graphs was proposed.First,the primary equipment information of the smart substation was classified to obtain relevant equipment information corpus.then an unstructured equipment information extraction framework was defined to achieve efficient equipment information corpus Extraction.then,hidden Markov model was used to segment equipment information so as to construct a knowledge map of substation primary equipment information,realize the visual display of equipment information,and break through the limitations of two-dimensional semantic tables.Finally,the knowledge map technology was utilized to design the information management system of the smart substation primary equipment.Experiments show that the smart substation primary equipment information record retrieval system based on the knowledge graph can provide accurate equipment information and realize the efficient retrieval of smart substation equipment information.

关 键 词：智能变电站 知识图谱 隐马尔科夫模型 一次设备 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]