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University of Tennessee at Chattanooga

Voltage collapse modes in power networks

Abstract

dc:description.abstract

Voltage Collapse is instability of a heavily loaded electric power system, which leads to declining voltages and blackout, and it is typically associated with reactive power limitations of the power system. Therefore, knowledge of the critical loading point is vital to ensure a secure mode of operation for the power system. Over the years, different methods were proposed in the literature to identify proximity to voltage collapse. However, these techniques were derived utilizing only the voltage limitation of the load buses. Voltage collapse is often interlinked with static transfer stability limit. In this work, different voltage collapse modes are addressed and a new algorithm that takes into account both load bus voltage and generator bus angle behavior is proposed to estimate the collapse point. The proposed method was examined on several IEEE test systems. Also, superiority of the proposed method in comparison with the other techniques was proven.

Degree

thesis:*
Grantor dc:publisher
University of Tennessee at Chattanooga
Year dc:date.available
2021

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Ahmed, Areeg Abubakr Ibrahim
Contributors dc:contributor
  • Karrar, Abdelrahman A.
  • Disfani, Vahid R.; Kobet, Gary L.
  • College of Engineering and Computer Science

Subjects

dc:subject × 3

Rights

dc:rights
Language dc:language
English, eng

Identifiers

dc:identifier.*
Repository record dc:identifier
https://scholar.utc.edu/theses/614
OAI identifier oai:identifier
oai:scholar.utc.edu:theses-1774

Chain of custody

source
Harvested from
University of Tennessee - Chattanooga
Base URL
scholar.utc.edu/do/oai/
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Ahmed, Areeg Abubakr Ibrahim. Voltage collapse modes in power networks. University of Tennessee at Chattanooga, 2021. https://scholar.utc.edu/theses/614