Power System State Estimation: A New Method Based on Current Equations

This paper proposes a new state estimation method modeled as a nonlinear programming problem with equality constraints. The majority of the estimated state estimation methods work with a set of measurements composed of active and reactive power flows on branches, active and reactive injection power...

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Bibliographic Details
Published in2007 Large Engineering Systems Conference on Electric Power Engineering pp. 166 - 170
Main Authors Lavorato, M., Rider, M.J., Garcia, A.V.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2007
Subjects
current equations model
Current measurement
Nonlinear equations
nonlinear programming problem
Power measurement
Power system measurements
Power system modeling
Power systems
Reactive power
State estimation
System testing
Voltage
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ISBN9781424415823
1424415829
DOI10.1109/LESCPE.2007.4437372

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Summary:This paper proposes a new state estimation method modeled as a nonlinear programming problem with equality constraints. The majority of the estimated state estimation methods work with a set of measurements composed of active and reactive power flows on branches, active and reactive injection power on nodes, and nodal voltage magnitudes. In this method, the current magnitude branch measurements are considered in a simpler and direct manner, increasing the global redundancy of the system. Tests were carried out with several systems widely known in the literature and the results obtained confirmed the efficiency of the method. The method can be applied both to transmission and distribution systems and permit the inclusion of the inequality constraints and the bad data processing.
ISBN:9781424415823
1424415829
DOI:10.1109/LESCPE.2007.4437372