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A Simple Computation and Visualization of Voltage Stability Power Margins in Real-Time
Glavic, Mevludin; Lelic, Muhidin; Novosel, Damir et al.
2012In Proceedings of the IEEE PES Transmission and Distribution Conference and Exposition
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Keywords :
Voltage stability monitoring and detection; Phasor measurements; Visualization
Abstract :
[en] This paper introduces a simple method to monitor power system voltage stability conditions in real-time. The method is based on the concept of Voltage Instability Predictor (VIP). The essence of the method is a simple computation of a voltage stability boundary based on VIP derived quantities. The stability boundary is assumed as a parabolic equation in the P-Q plane identified using measurements collected at a specific substation, transmission path, or load center. The computed stability boundary is further visualized in a P-Q plane, together with a point representing the current operating conditions, and generally re-computed as soon as the new set of measurements is collected (preferably at high rates using phasor measurement units). Simplicity and easy interpretation of the results brings this method as a useful tool to increase system operator situational awareness. Supporting results are provided using relatively big test system (52 bus Nordic test system) and a real-life system (a portion of the North-West USA system).
Disciplines :
Electrical & electronics engineering
Author, co-author :
Glavic, Mevludin ;  Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation : Optimisation discrète
Lelic, Muhidin
Novosel, Damir
Heredia, Eric
Kosterev, Dmitry
Language :
English
Title :
A Simple Computation and Visualization of Voltage Stability Power Margins in Real-Time
Publication date :
May 2012
Event name :
Transmission and Distribution Conference and Exposition
Event organizer :
IEEE PES
Event date :
from 07-05-2012 to 10-05-2012
Audience :
International
Main work title :
Proceedings of the IEEE PES Transmission and Distribution Conference and Exposition
Pages :
1-7
Peer reviewed :
Peer reviewed
Available on ORBi :
since 21 April 2017

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