摘要
针对智能变电站软压板多、巡视困难的特点,充分利用一体化监控系统采集信息流的优势,提出了一、二次系统状态对应关系监测的智能巡检技术。通过分析单一类间隔、多类间隔的状态和其对继电保护及安全自动装置内部压板的投退状态要求,提出基于"组合间隔"思维的一、二次系统状态对应关系多维映射矩阵;基于压板类型数据字典和分词语义识别技术,自动识别系统内部相关软压板信息点;构建一、二次系统状态对应关系多维映射矩阵,对一、二次系统状态进行实时侦测、比对和可视化输出。应用结果表明,该技术具有实用性强、安全性好的特点,为变电站运维人员提供了日常运维、异常处理、检修安措的新技术手段和辅助决策。
In an intelligent substation there are numerous soft straps and inspecting is no easy work.The intelligent inspection technology of primary and secondary system state correspondence is proposed by taking full advantage of the integrated monitoring system to collect complete information flow to provide effective assistance for on-site operation and maintenance.By analyzing the states of a single type of interval and multiple types of intervals and the requirements for the switching of the secondary protection and the internal soft straps of the protective relaying and safety automation devices,the paper proposes a multi-dimensional mapping matrix of the correspondence between the primary and secondary systems based on the“combined interval”.Moreover,based on the straps type data dictionary and word segmentation meaning recognition technology,the system can automatically identify the information points related to the soft straps.Finally,the multi-dimensional mapping matrix of the correspondence relationship between the primary and secondary system states is constructed to detect,compare and visualize the system states of the primary and secondary equipment in real time.The application results show that the proposed technology,featuring its strong practicability and safety,provides a new technical means and decision-making support for routine maintenance,anomaly handling,and maintenance safety measures for substation operation personnel.
作者
钱建国
张超
马伟
徐小俊
骆兆军
纪陵
QIAN Jianguo;ZHANG Chao;MA Wei;XU Xiaojun;LUO Zhaojun;JI Ling(State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310007,China;State Grid Hangzhou Power Supply Company,Hangzhou 310009,China;Nanjing SAC Automation Co.,Ltd.,Nanjing 211100,China)
出处
《浙江电力》
2022年第1期118-124,共7页
Zhejiang Electric Power
基金
国网浙江省电力有限公司科技项目(5211HZ19014Q)。
关键词
智能变电站
组合间隔
监控系统
智能巡视
分词技术
intelligent substation
combined interval
monitoring system
intelligent inspection
word segmentation technology
