基于电压暂降监测点优化配置的同心松弛凹陷域分析

郎福龙; 田立军; 王滕藤

引用本文:	郎福龙,田立军,王滕藤.基于电压暂降监测点优化配置的同心松弛凹陷域分析[J].电力系统保护与控制,2017,45(18):96-101.
	LANG Fulong,TIAN Lijun,WANG Tengteng.An analysis to the concentric relaxation vulnerability area of voltage sag based on optimal allocation of voltage sag monitors[J].Power System Protection and Control,2017,45(18):96-101

【打印本页】【下载PDF全文】【查看/发表评论】【EndNote】【RefMan】【BibTex】

←前一篇|后一篇→

过刊浏览高级检索

本文已被：浏览 4625次下载 2148次	码上扫一扫！
分享到：微信更多字体:加大+\|默认\|缩小-
基于电压暂降监测点优化配置的同心松弛凹陷域分析
郎福龙¹,田立军²,王滕藤²
(1.国网冀北电力有限公司唐山供电公司，河北唐山 063000; 2.山东大学电气工程学院，山东济南 250061)

摘要:

提出了一种基于电压暂降监测点优化配置的同心松弛凹陷域分析方法。在传统MRA法的基础上，根据变压器的接线方式以及故障点的位置构建系统的零序节点阻抗矩阵，修正电压暂降幅值，克服了传统MRA法存在监测盲区的缺点，实现对实际配电网的电压暂降监测点优化配置以及故障定位。根据监测点布点方案以及故障点定位结果，提出以故障点为中心的同心松弛凹陷域，定义的提出及分析计算可以有效减少供电部门凹陷域计算的工作量，为解决由于电压暂降带来的责任归属问题提供理论依据。通过对含有多个电压等级的实际配电网进行仿真分析，验证了该方法的实用性与有效性。

关键词: 电压暂降多电压等级优化配置故障定位同心松弛凹陷域

DOI：10.7667/PSPC161475

分类号:

基金项目:山东省自然科学基金项目(ZR2012EEM026)

An analysis to the concentric relaxation vulnerability area of voltage sag based on optimal allocation of voltage sag monitors

LANG Fulong¹,TIAN Lijun²,WANG Tengteng²

(1. Tangshan Power Supply Company, State Grid Jibei Electric Power Supply Company, Tangshan 063000, China;2. School of Electrical Engineering, Shandong University, Jinan 250061, China)

Abstract:

A method to analyze the concentric relaxation vulnerability area of voltage sag based on optimal allocation of voltage sag monitors is proposed. On the basis of traditional MRA method, zero sequence impedance matrix is constructed according to the transformer connection mode and fault point location, on this basis, the amplitude of voltage sag is modified, which overcomes the shortcomings of monitoring blind spot existing in the traditional MRA method. Then the optimal allocation of the voltage sag monitoring points and fault location of the actual distribution network are realized. According to allocation of voltage sag monitors and result of fault location, the concentric relaxation vulnerability whose center is the fault point is proposed. The proposed definition can effectively reduce the workload involved in traditional voltage sag vulnerability areas and provide us a judgment reference of the attribution of liabilities between power supply department and power users. The practicability and effectiveness of the proposed method are verified by the simulation of the actual distribution network with multiple voltage levels. This work is supported by Natural Science Foundation of Shandong Province (No. ZR2012EEM026).

Key words: voltage sag multi-voltage level optimal allocation fault location concentric relaxation vulnerability area

X关闭