DocumentCode :
1128182
Title :
Modeling zero impedance branches in power system state estimation
Author :
Monticelli, A. ; Garcia, A.
Author_Institution :
Univ. Estodual do Campinas, Brazil
Volume :
6
Issue :
4
fYear :
1991
fDate :
11/1/1991 12:00:00 AM
Firstpage :
1561
Lastpage :
1570
Abstract :
The authors discuss the modeling of branches with zero impedances in power system state estimation. A new modeling approach is introduced by means of which zero impedance branches can be modeled exactly. An overview of the state estimation problem is presented using two formulations: the standard normal equations and the extended form of the normal equations in which zero injections are represented as equality constraints. Next, the modeling of the zero impedance series branches is introduced. Thus the new modeling procedure is illustrated by two examples. Finally test results based on real life systems are discussed
Keywords :
power systems; state estimation; modeling; power system state estimation; zero impedance branches; zero injections; Circuits; Impedance; Merging; Nonlinear equations; Power system measurements; Power system modeling; Power system reliability; Robustness; State estimation; Substations;
fLanguage :
English
Journal_Title :
Power Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8950
Type :
jour
DOI :
10.1109/59.117003
Filename :
117003
Link To Document :
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