基于10kV配电网的电压暂降源的定位与识别

杨浩; 李永刚; 李建文; 李忠良

杨浩,李永刚,李建文,李忠良.基于10kV配电网的电压暂降源的定位与识别[J].电测与仪表,2014,51(24):.
YANG Hao,LI Yong-gang,LI Jian-wen,Li Zhongliang.Location and Recognition of Voltage Sag Source Based on 10kV Distribution System[J].Electrical Measurement & Instrumentation,2014,51(24):.

基于10kV配电网的电压暂降源的定位与识别

Location and Recognition of Voltage Sag Source Based on 10kV Distribution System

DOI：

中文关键词: 配电网电压暂降源定位识别

英文关键词:distribution system, voltage sag source, location, recognition

基金项目:

作者中文名	作者英文名	单位
杨浩	YANG Hao	华北电力大学
李永刚	LI Yong-gang	华北电力大学
李建文	LI Jian-wen	华北电力大学
李忠良	Li Zhongliang	河南省焦作供电公司

摘要点击次数: 1668

中文摘要:

提出了一种基于10kV配电网的电压暂降源定位与识别的方法。利用有限的监测点采集的数据,根据电压暂降发生时系统中能量的流动变化,判定电压暂降源相对于监测点的位置；从三相电压是否平衡、暂降深度、有功功率变化和电压总谐波畸变率等方面研究了几种常见电压暂降源的特征；根据各类电压暂降源的特性以及仿真试验提取相应的特征量并设立判据,从而实现了对线路故障、感应电机启动和变压器投运引起的电压暂降的识别。

英文摘要:

Based on a 10kV distribution system, a new voltage sag source location and recognition method is brought forward. With limited data, determine the voltage sag location according to the flow of the energy in the system. Make an analysis on characteristics of several common voltage sag source from the balanced of three-phase voltage, sag depth, changes of active power and Total Harmonic Distortion of voltage. According to the characteristics of the source and simulation, the criterion has been established. Then achieve the location and recognition of the voltage sag source caused by power system short-circuit faults, start up of induction motors and energization of power transformers.

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