| 配电网中电压暂降源定位方法比较 |
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| 引用本文： | 何维国,董瑞安,张孝银,陆如,高倩倩,徐永海. 配电网中电压暂降源定位方法比较[J]. 电测与仪表, 2011, 0(8): 53-58 |
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| 作者姓名： | 何维国 董瑞安 张孝银 陆如 高倩倩 徐永海 |
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| 作者单位： | 上海市电力公司;华北电力大学电气与电子工程学院 |
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| 摘 要： | 电压暂降已经成为最受关注的电能质量问题之一.电压暂降源位置的确定对暂降故障检测、诊断及制订缓和措施十分必要,同时有利于区分暂降责任,协调缓解纠纷.对现有的基于无功功率变化、基于系统参量斜率、基于实部电流分量和基于距离阻抗继电器四种电压暂降源的定位方法进行了原理分析和仿真比较,对其进行了分类并讨论了各自特点,证实了基于距...
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| 关 键 词： | 电能质量 电压暂降源 定位 |
Comparison of Methods for Voltage Sag Source Detection in Distribution System |
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| HE Wei-guo,DONG Rui-an,ZHANG Xiao-yin,LU Ru,GAO Qian-qian,XU Yong-hai. Comparison of Methods for Voltage Sag Source Detection in Distribution System[J]. Electrical Measurement & Instrumentation, 2011, 0(8): 53-58 |
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| Authors: | HE Wei-guo DONG Rui-an ZHANG Xiao-yin LU Ru GAO Qian-qian XU Yong-hai |
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| Affiliation: | 1.Shanghai Electric Power Company,Shanghai 200122,China. 2.School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206,China) |
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| Abstract: | Voltage sag has been one of the most concerned problems of power quality.Identifying the location of the source of voltage sag is critically necessary for power-quality trouble-shooting,diagnosis and mitigation,and it is helpful to distinguish responsibilities and solve disputes caused by voltage sag.This paper analyzes and compares four existing location methods based on reactive power variation,slope of the system trajectory,real current component and distance relay,then classifies them and discusses their characteristics.The distance relay approach shows that the best performance and further research is proposed. |
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| Keywords: | power quality voltage sag source location |
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