基于数字孪生技术的变电站自动化二次设备运行状态模糊评价方法  

Fuzzy Evaluation Method for the Operation Status of Secondary Equipment in Substation Automation Based on Digital Twin Technology

作　　者：李文明 王国庆 雷晓萍 翟娟荟 LI Wenming;WANG Guoqing;LEI Xiaoping;ZHAI Juanhui(State Grid Qinghai Electric Power Company,Xining 810007,China;School of Computer and Information Science,Qinghai Institute of Technology,Xining 810000,China)

机构地区：[1]国网青海省电力公司,西宁810007 [2]青海理工学院计算机与信息科学学院,西宁810000

出　　处：《自动化与仪表》2024年第12期96-99,104,共5页Automation & Instrumentation

摘　　要：变电站自动化二次设备运行状态的评价往往基于准确的设备数据进行,但数据的质量往往受到变电站环境的影响,从而导致设备运行状态评价结构的准确度不高。为了缓解这一问题,提出了基于数字孪生技术的变电站自动化二次设备运行状态模糊评价方法。利用解析法分析变电站自动化二次设备运行环境的漏磁感应强度,通过基线校正优化数据质量。通过建立判断矩阵确定二次设备运行状态参量权重,以此为基础,构建二级模糊评价体系。经过算例测试可知,该方法在实践应用中的评价结果有着较高的准确度,满足变电站自动化二次设备状态的分析运维需求。The evaluation of the operation status of secondary equipment in substation automation is often based on accurate equipment data,but the quality of the data is often affected by the substation environment,resulting in low accuracy of the equipment operation status evaluation structure.To alleviate this problem,a fuzzy evaluation method for the operation status of secondary equipment in substation automation based on digital twin technology is proposed.Using analytical methods to analyze the leakage magnetic induction intensity of the operating environment of secondary equipment in substation automation,optimizing data quality through baseline correction,and based on this,mapping the physical state of equipment using digital twin technology.By establishing a judgment matrix to determine the weight of the operating status parameters of secondary equipment,a two-level fuzzy evaluation system is constructed based on this.Through numerical tests,it can be seen that the evaluation results have high accuracy,meeting the analysis and operation requirements of secondary equipment status in substation automation.

关 键 词：运行状态评价 自动化二次设备 设备运行状态 模糊评价 数字孪生技术 变电站设备 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]