基于电压故障分量的故障元件定位方法研究

Research on Fault Element Location Method Based on Voltage Fault Component

根据故障点处电压故障分量最大这一基本原理,提出了WAMS(广域测量系统)中故障元件定位的新方法,即利用广域测量信息,找到电压故障分量最大的母线,并对其故障关联域内各元件进行差动计算来定位故障元件。当存在数据缺失时,则根据IED(智能电子设备)关联拓扑树扩大信息交换范围,以较大范围定位并切除故障。

In accordance to the basic principle that the voltage fault component is the maximum at the fault point, the paper proposes a new method for fault element location in WAMS （wide area measurement system）. By use of wide area measurement system, the bus with maximum voltage fault component is confirmed, and the fault elements are located by differential calculation on elements in fault correlation area. In case there is loss of data, the information exchange area can be expanded on the basis of IED （intelligent electronic device）, and the fault can be located and cleared in larger area.