电网故障信息可视化故障告警分析及诊断  

Visual Alarm Analysis and Diagnosis of Power Grid Fault Information

作　　者：吴俊杰 李一荻 刘亮 WU Junjie;LI Yidi;LIU Liang(Guizhou Power Grid Co.,Ltd.,Guiyang Power Supply Company,Guiyang 550000,China)

机构地区：[1]贵州电网有限责任公司贵阳供电局,贵州贵阳550000

出　　处：《电工技术》2023年第14期224-227,231,共5页Electric Engineering

摘　　要：为了提高电网故障的快速诊断能力,减轻故障对电网造成的损害,建立电网故障告警分析诊断系统,应用可视化服务引擎和动态模型,将系统采集的电网故障信息进行可视化显示。设计的柔性多端口直流断路器,由多个双极性晶体管和快速机械开关组成,利用电容的充电效应缓解故障电流带来的冲击。基于贝叶斯网络构建故障诊断模型,根据发生故障后电力设备动作信息的时序关系,计算可疑故障元件的故障概率。搭建仿真实验环境进行测试,实验结果显示该系统计算出的概率最高可达到99.8%,并且能够有效显示故障线路的电流电压。In order to improve the rapid diagnosis ability of power grid faults and reduce the damage caused by faults to the power grid,a power grid fault alarm analysis and diagnosis system is established.The visual service engine and dynamic model are applied to visualize the power grid fault information collected by the system.The designed flexible multiport DC circuit breaker consisting of multiple bipolar transistors and fast mechanical switches that use the charging effect of a capacitor to mitigate the impact of fault currents.Based on Bayesian network,a fault diagnosis model is constructed,which classifies the time series relationship of power equipment action information after failure and calculates the failure probability of suspected fault components.The experimental results show that the calculated probability of the system can reach up to 99.8%,and can effectively display the current and voltage of the faulty line.

关 键 词：电网故障告警 可视化服务引擎 直流断路器 双极性晶体管 贝叶斯网络 故障诊断 

分 类 号：TP37[自动化与计算机技术—计算机系统结构]