Theoretical analysis of the impact of IBRs on impedance trajectories during power swings

IF 4.2 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Electric Power Systems Research Pub Date : 2025-09-17 DOI:10.1016/j.epsr.2025.112218

Sachintha Kariyawasam, Athula Rajapakse

引用次数: 0

Abstract

Despite their numerous advantages, abundant presence of IBRs in power systems causes a multitude of issues to conventional power system protection and operation. The work presented in this paper studies the effects on IBRs on power swing impedance trajectories by generic theoretical examination using phasor domain equations. A well-established model used for analyzing power swing phenomena was modified appropriately to incorporate IBRs. Phasor domain equations for the new power swing model with an IBR were derived and validated through EMT simulations. Using the derived model, power swing trajectory under various conditions were analyzed and the potential impacts of IBR on power swing protection were discussed. The work demonstrates that simplified, generic theoretical examination can provide useful information about impedance trajectories during power swings.

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功率波动时ibr对阻抗轨迹影响的理论分析

尽管ibr具有许多优点，但它在电力系统中的大量存在给常规电力系统的保护和运行带来了许多问题。本文采用相域方程的一般理论检验方法研究了ibr对功率摆动阻抗轨迹的影响。对一个已建立的用于分析权力摇摆现象的模型进行了适当的修改，以纳入ibr。推导了带IBR的新型功率摆动模型的相域方程，并通过EMT仿真进行了验证。利用推导的模型，分析了不同工况下的功率摆动轨迹，讨论了IBR对功率摆动保护的潜在影响。这项工作表明，简化的、通用的理论检验可以提供有关功率波动期间阻抗轨迹的有用信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electric Power Systems Research 工程技术-工程：电子与电气

CiteScore

7.50

自引率

17.90%

发文量

963

审稿时长

3.8 months

期刊介绍： Electric Power Systems Research is an international medium for the publication of original papers concerned with the generation, transmission, distribution and utilization of electrical energy. The journal aims at presenting important results of work in this field, whether in the form of applied research, development of new procedures or components, orginal application of existing knowledge or new designapproaches. The scope of Electric Power Systems Research is broad, encompassing all aspects of electric power systems. The following list of topics is not intended to be exhaustive, but rather to indicate topics that fall within the journal purview. • Generation techniques ranging from advances in conventional electromechanical methods, through nuclear power generation, to renewable energy generation. • Transmission, spanning the broad area from UHV (ac and dc) to network operation and protection, line routing and design. • Substation work: equipment design, protection and control systems. • Distribution techniques, equipment development, and smart grids. • The utilization area from energy efficiency to distributed load levelling techniques. • Systems studies including control techniques, planning, optimization methods, stability, security assessment and insulation coordination.