基于故障距离分布函数的配电网故障定位方法研究

摘要

为了解决配电网故障定位困难的问题,使配电网工作人员能正确定位故障点,从而快速修复配电网故障,文中提出了基于故障距离分布函数的配电网故障定位方法,其通过监测点监测到的故障点暂降电压,并与节点电压暂降数据库进行比对得出故障区段,然后通过故障距离分布函数计算出故障距离,完成故障的定位.测试结果显示,本方法能够正确定位故障,且误差小,同时对负荷变动具有一定的鲁棒性.%In order to solve the problem of distribution network fault location, so that the power distribution network staff can correctly locate the fault point,this paper presents a fault location method for distribution network based on fault distance distribution function.It through the monitoring points to monitor the fault point temporarily drop voltage, and with the node voltage temporarily drop database to compare the fault section, and then by the fault distance distribution function to calculate the fault distance, which locate the fault.The test results show that this method can correctly locate the fault, and the error is small, and it is robust to the load variation.