[1]文 雷.基于负序功率流的电压暂降源的定位[J].控制与信息技术,2015,(04):65-69.[doi:10.13889/j.issn.2095-3631.2015.04.013]
 WEN Lei.Location of the Voltage Sag Source Based on Negative Sequence Power Flow[J].High Power Converter Technology,2015,(04):65-69.[doi:10.13889/j.issn.2095-3631.2015.04.013]
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基于负序功率流的电压暂降源的定位()
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《控制与信息技术》[ISSN:2095-3631/CN:43-1486/U]

卷:
期数:
2015年04期
页码:
65-69
栏目:
“电能质量与高效优质用电”专刊
出版日期:
2015-08-05

文章信息/Info

Title:
Location of the Voltage Sag Source Based on Negative Sequence Power Flow
文章编号:
2095-3631(2015)04-0065-05
作者:
文 雷
中国矿业大学 信息与电气工程学院
Author(s):
WEN Lei
School of Information and Electrical Engineering, China University of Mining and Technology
关键词:
电能质量电压暂降源定位负序功率流
Keywords:
power quality voltage sag source location negative sequence power flow(NSPF)
分类号:
TM744+.3
DOI:
10.13889/j.issn.2095-3631.2015.04.013
文献标志码:
A
摘要:
电压暂降是一种严重的动态电能质量问题,电压暂降源的定位是检测电网薄弱环节以及解决供用电双方责任问题的重要依据。文章从电网故障的分析入手,根据线性电路叠加定理,提出基于负序功率流方向的定位依据;同时,利用等效替代的原则,将对称扰动转化为不对称扰动,使对称扰动源的定位方法适用于不对称扰动源定位。负序功率流为正,电压暂降源位于观测点上游;反之,电压暂降源位于观测点下游。仿真结果表明,该方法适用于各种电网结构,可以应用于相应的电能质量分析设备。
Abstract:
Voltage sag is a severe problem of dynamic power quality problem. Voltage sag source location is the important basis for detecting weak part and solving the responsibility’s problems between customers and suppliers. By analyzing the faults of power system, the location based on negative sequence power flow was proposed in accordance with the superposition theorem of linear circuits. Meanwhile, on the basis of equivalent replacement principle, the symmetric disturbance can be converted to asymmetric disturbance to make this method suitable for symmetric disturbance source location. If the negative sequence power flow is positive, voltage sag source location is in the upstream of observation point, otherwise, it is in the downstream. Simulation results show that the proposed algorithm is suitable for all kinds of network structures, and can be applied to the analysis equipments of power quality.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-05-16
作者简介:文雷(1988-),男,硕士研究生,主要研究方向为配电网和用电侧电能质量问题及解决方案。
更新日期/Last Update: 2016-01-04