Online Tracking of Power System Impedance Parameters and Field Experiences

被引：74

作者：

Arefifar, S. A. ^{[1
]}

Xu, Wilsun ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2N8, Canada

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2009年 / 24卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Equivalent circuit; impedance; measurement data; power system;

D O I：

10.1109/TPWRD.2009.2021046

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

The Thevenin impedance seen at a load bus is an important parameter for power system planning and operation. This paper presents a new algorithm to track the impedance parameters online. The algorithm uses the natural variations of loads connected to substations for impedance estimation. It neither depends on the load model nor requires synchronized measurements. The input data are several seconds of voltage and current waveform data. Such data are readily available from substation power monitors. Simulations, experiments and field test results show that the proposed algorithm can be used for online monitoring of power system impedance parameters.

引用

页码：1781 / 1788

页数：8

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