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Weakest Bus Identification Based on Modal Analysis and Singular Value Decomposition Techniques

Authors: M. K. Jalboub --- H. S. Rajamani --- R.A. Abd-Alhameed --- A. M. Ihbal
Journal: Iraqi Journal for Electrical And Electronic Engineering المجلة العراقية للهندسة الكهربائية والالكترونية ISSN: 18145892 Year: 2011 Volume: 7 Issue: 2 Pages: 157-162
Publisher: Basrah University جامعة البصرة


Voltage instability problems in power system is animportant issue that should be taken into consideration duringthe planning and operation stages of modern power systemnetworks. The system operators always need to know when andwhere the voltage stability problem can occur in order to applysuitable action to avoid unexpected results. In this paper, a studyhas been conducted to identify the weakest bus in the powersystem based on multi-variable control, modal analysis, andSingular Value Decomposition (SVD) techniques for both staticand dynamic voltage stability analysis. A typical IEEE 3-machine, 9-bus test power system is used to validate thesetechniques, for which the test results are presented anddiscussed

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