Paper published in a book (Scientific congresses and symposiums)
The Continuation Power Flow: A Tool for Parametric Voltage Stability and Security Analysis
Glavic, Mevludin
1997In Proceedings of 59th American Power Conference
Peer reviewed
 

Files


Full Text
APC_1997_Glavic.PDF
Publisher postprint (2.77 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
continuation power flow; voltage stability; parametric analysis
Abstract :
[en] This paper considers a toll for assessing voltage related instability problems due to slow load variations, based on power flow formulation. Most conventional power flow tools break down when used to analyze voltage stability problems. This paper deals with a class of methods for solving nonlinear equations known as path-following (or continuation) methods, i.e. with a continuation power flow as a robust power flow method capable of dealing with sometimes difficult mathematical problems encountered during the analysis of voltage problems in power systems. In particular, the paper presents a simplified continuation power flow with the next four basic elements: first order polynomial predictor (secant predictor), physical parameterization (bus, area or total system load as a continuation parameter), an ordinary Newton-Raphson solver based on the constant imp€dance load model and well-conditioned Jacobian matrix in that case throughout solution process, and appropriate step length control. It is well known that constant power load mod€l is the most conservative in voltage stability analyses, add four slightly different algorithms which are combination of the constant power and constant impedance load models during a continuation process, are investigated and presented in the paper. In addition, the application of the proposed continuation power flow to compute the saddle node bifurcation points and security margins in the load parameter space of an electric power system, with appropriate eigenvalue and eigenvector calculations, is also presented in the paper. All examples, included in the report are based on the CIGRE 31-bus Test System which originates from the CIGRE Task Force that investigated voltage collapse indices, and real-life Bosniatr Electric Power System (configuration in 1996.).
Disciplines :
Electrical & electronics engineering
Author, co-author :
Glavic, Mevludin ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Smart grids
Language :
English
Title :
The Continuation Power Flow: A Tool for Parametric Voltage Stability and Security Analysis
Publication date :
April 1997
Event name :
American Power Conference
Event place :
Chicago, United States
Event date :
from 01-04-1997 to 04-04-1997
Audience :
International
Main work title :
Proceedings of 59th American Power Conference
Peer reviewed :
Peer reviewed
Available on ORBi :
since 04 December 2018

Statistics


Number of views
37 (2 by ULiège)
Number of downloads
60 (1 by ULiège)

Scopus citations®
 
5
Scopus citations®
without self-citations
3

Bibliography


Similar publications



Contact ORBi