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Comparison of Different Techniques for Voltage Stability Analysis of Power Systems

conference contribution
posted on 2020-11-29, 00:00 authored by L Aththanayake, Nasser HosseinzadehNasser Hosseinzadeh, Apel MahmudApel Mahmud, Ameen GargoomAmeen Gargoom, E M Farahani
It is always crucial for power systems to be Voltage stable to ensure reliable and secure power to its customers. However, voltage stability of modern power systems is being challenged more and more as the structure of power systems is being changed. Voltage stability analysis techniques were introduced to understand about voltage stability problem and to take necessary precautions to prevent voltage collapse. There have been different techniques proposed in the literature and this paper compares some of these techniques. Finally, IEEE 9 bus systems is used to evaluate results for voltage stability using 6 different techniques described in this paper. A ranking of buses in IEEE 9 bus system is given using evaluation from each technique. The impact of action of under load tap changing transformer (ULTC) for voltage stability is also observed for the test system.




Publication classification

E1 Full written paper - refereed

Copyright notice

2020, IEEE

Title of proceedings

2020 Australasian Universities Power Engineering Conference, AUPEC 2020 - Proceedings