基于暂态分量的变电设备电源故障预警方法研究  

Research on Power Failure Early Warning Method of Substation Equipment Based on Transient Component

作　　者：朱方涛 ZHU Fangtao(State Grid Suzhou Power Supply Company,Suzhou 215000,China)

机构地区：[1]国网苏州供电公司,江苏苏州215000

出　　处：《通信电源技术》2023年第23期110-112,共3页Telecom Power Technology

摘　　要：针对传统故障预警方法无法满足变电设备的运行要求,提出一种基于暂态分量的变电设备电源故障预警方法。通过搜索变电设备的运行参数,构建电源故障数据矩阵,根据变电设备电源故障暂态分量处理点处的电压解析图,提取变电设备电源故障的暂态分量。在Fisher准则下,计算出变电设备电源故障数据的类内聚合度和类间聚合度,结合电源故障数据在每个维度的区分度得分,实现变电设备电源故障的预警。结果表明,该方法可以将变电设备电源故障的预警效率提高到80%以上。In view of the fact that the traditional fault early warning method can not meet the operation requirements of substation equipment,a power supply fault early warning method of substation equipment based on transient component is proposed.By searching the operation parameters of substation equipment,the power failure data matrix is constructed,and the transient components of substation equipment power failure are extracted according to the voltage analysis diagram at the processing point of transient components of substation equipment power failure.Under Fisher criterion,the intra-class aggregation degree and inter-class aggregation degree of power failure data of substation equipment are calculated,and the early warning of power failure of substation equipment is realized by combining the discrimination score of power failure data in each dimension.The results show that the method in this paper can improve the early warning efficiency of power failure of substation equipment to more than 80%.

关 键 词：暂态分量 故障预警 电源故障 变电设备 

分 类 号：TM63[电气工程—电力系统及自动化]