A real-time analytical steady-state calculation in power system restoration: Managing uncertainty

The comprehensive strategy for steady-state overvoltages caused by the energization of lightly loaded transmission lines is an essential part of power system restoration plans. In this context, dispatchers must address three key questions: (1) the required load along the restoration path, (2) the su...

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Main Authors: Noureyeh Zahiroddin, Mahtab Khalilifar, S. Mohammad Shahrtash, Shahram Jadid
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Results in Engineering
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Online Access:http://www.sciencedirect.com/science/article/pii/S2590123025007984
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author Noureyeh Zahiroddin
Mahtab Khalilifar
S. Mohammad Shahrtash
Shahram Jadid
author_facet Noureyeh Zahiroddin
Mahtab Khalilifar
S. Mohammad Shahrtash
Shahram Jadid
author_sort Noureyeh Zahiroddin
collection DOAJ
description The comprehensive strategy for steady-state overvoltages caused by the energization of lightly loaded transmission lines is an essential part of power system restoration plans. In this context, dispatchers must address three key questions: (1) the required load along the restoration path, (2) the suggested reaction in the event of uncertainty or a lack of the required load, and (3) the potential impact of this loading on the voltages along the restored network. The primary purpose of this paper is to propose an analytical tool that equips dispatchers with a non-iterative, robust, and rapid solution to these questions. The main idea involves substituting restored transmission lines with an equivalent no-load line. Subsequently, the necessary optimized load amount is computed by putting together the equivalent no-load model of the restored network along with the actual length of any new line that will be energized. In this method, considerations for reactor/load uncertainty are included as well. Finally, the overall voltage assessment is conducted by applying the proposed formulation to the energized paths. The efficacy of the proposed model is substantiated by load flow results from DIgSILENT, demonstrating the method's capability to provide comprehensive loading solutions with high accuracy. This paper introduces a robust procedure as a novel advancement in the journey toward smarter transmission networks.
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institution DOAJ
issn 2590-1230
language English
publishDate 2025-06-01
publisher Elsevier
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series Results in Engineering
spelling doaj-art-089022557c78417894a6895bf2d45f0f2025-08-20T03:04:47ZengElsevierResults in Engineering2590-12302025-06-012610472110.1016/j.rineng.2025.104721A real-time analytical steady-state calculation in power system restoration: Managing uncertaintyNoureyeh Zahiroddin0Mahtab Khalilifar1S. Mohammad Shahrtash2Shahram Jadid3Iran University of Science and Technology (IUST), Tehran, IranCorresponding author.; Iran University of Science and Technology (IUST), Tehran, IranIran University of Science and Technology (IUST), Tehran, IranIran University of Science and Technology (IUST), Tehran, IranThe comprehensive strategy for steady-state overvoltages caused by the energization of lightly loaded transmission lines is an essential part of power system restoration plans. In this context, dispatchers must address three key questions: (1) the required load along the restoration path, (2) the suggested reaction in the event of uncertainty or a lack of the required load, and (3) the potential impact of this loading on the voltages along the restored network. The primary purpose of this paper is to propose an analytical tool that equips dispatchers with a non-iterative, robust, and rapid solution to these questions. The main idea involves substituting restored transmission lines with an equivalent no-load line. Subsequently, the necessary optimized load amount is computed by putting together the equivalent no-load model of the restored network along with the actual length of any new line that will be energized. In this method, considerations for reactor/load uncertainty are included as well. Finally, the overall voltage assessment is conducted by applying the proposed formulation to the energized paths. The efficacy of the proposed model is substantiated by load flow results from DIgSILENT, demonstrating the method's capability to provide comprehensive loading solutions with high accuracy. This paper introduces a robust procedure as a novel advancement in the journey toward smarter transmission networks.http://www.sciencedirect.com/science/article/pii/S2590123025007984Optimized load restorationLoad/Reactor uncertaintyReal-time solutionSmart power system restorationAnalytical calculation
spellingShingle Noureyeh Zahiroddin
Mahtab Khalilifar
S. Mohammad Shahrtash
Shahram Jadid
A real-time analytical steady-state calculation in power system restoration: Managing uncertainty
Results in Engineering
Optimized load restoration
Load/Reactor uncertainty
Real-time solution
Smart power system restoration
Analytical calculation
title A real-time analytical steady-state calculation in power system restoration: Managing uncertainty
title_full A real-time analytical steady-state calculation in power system restoration: Managing uncertainty
title_fullStr A real-time analytical steady-state calculation in power system restoration: Managing uncertainty
title_full_unstemmed A real-time analytical steady-state calculation in power system restoration: Managing uncertainty
title_short A real-time analytical steady-state calculation in power system restoration: Managing uncertainty
title_sort real time analytical steady state calculation in power system restoration managing uncertainty
topic Optimized load restoration
Load/Reactor uncertainty
Real-time solution
Smart power system restoration
Analytical calculation
url http://www.sciencedirect.com/science/article/pii/S2590123025007984
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