摘要
变电站在运行过程中,经常会发生一些断路器的偷跳、保护装置不明原因的误动或拒动,在许多事故案例的处理过程中发现其事故原因往往与直流电源系统有关,但对事发时直流电源系统的运行状况无法拿出实时的检测数据,且给事故分析增添了许多不确定性。文中对变电站直流电源系统的故障及异常情况进行了全面的分析研究,提出了一种对变电站直流电源系统发生异常状况时快速启动录波的思路,为变电站和发电厂直流电源系统故障分析提供了有力的支撑。
In substation, switchgear accidents and unwanted refuse operations of the protection devices for unknown reasons often occur. It can be found that the accident causes are often associated with DC power source. However, the real-time detection data of DC power source operation can＇t be provided. This brings a lot of uncertainties to accident analysis. In this paper, a comprehensive study on the fault and abnormal condition of the DC power supply system in substation is carried out,and a new method for rapidly starting wave-recording when failure occurs in substation DC power system is proposed, which provides a powerful support to fault analysis of DC power source system in substations and power stations
出处
《江苏电机工程》
2016年第2期26-30,38,共6页
Jiangsu Electrical Engineering
关键词
直流电源系统
故障信息采集
背景数据
突变量
自适应
DC power system
fault information collection
background data
fault component
self-adaption
