基于电气相连状态的一、二次系统故障自动区分方法研究  

Research on Automatic Distinguish Method of Primary and Secondary System Fault Based on Electrical Connection

作　　者：赖天德 王世祥 LAI Tiande;WANG Shixiang(Shenzhen Power Supply Co.,Ltd.,Shenzhen 518000,China)

机构地区：[1]深圳供电局有限公司,广东深圳518000

出　　处：《电工技术》2021年第19期106-108,共3页Electric Engineering

摘　　要：基于无人变电站的普及和电网故障后快速复电的要求,用于电网故障的故障录波分析对快速恢复电网正常运行方式有重要的意义。基于故障录波数据,引入了电气设备的相连状态的概念,设计了一种用于自动区分一、二次系统故障的方法。该方法首先通过分析一、二次系统的故障特征和故障录波启动条件,在故障录波装置引入间隔位置状态的判断条件,然后结合间隔位置的运行状态,得出间隔的相连关系。在相连关系的逻辑前提下,对集合间隔启动录波条件“与”“或”逻辑计算,最终得出区分一、二次系统故障的判断结果。Based on the popularization of unmanned substations and the requirements for rapid restoration of power after grid failures,the fault recording analysis for grid failures is of great significance to quickly restore the normal operation of the grid.Based on the fault record data,the concept of the connected state of electrical equipment is introduced,and a method for automatically distinguishing primary and secondary system faults is designed.Firstly,by analyzing the fault characteristics of primary and secondary systems and the starting conditions of fault recording,the judgment conditions of interval position state are introduced into the fault recording device.Then,combined with the running state of the interval position,the connection relationship of the interval is obtained.Under the logical premise of the connection relationship,the"and""or"logic calculation of the set interval start recording conditions is carried out,and finally the judgment result of distinguishing the primary and secondary system faults is obtained.

关 键 词：故障区分 故障录波 相连系统 

分 类 号：TM769[电气工程—电力系统及自动化]