Combined use of SCADA and PMU measurements for power system state estimator performance enhancement

Author

Castro Vide, Paula S. ; Maciel Barbosa, F.P. ; Ferreira, I.M.

Author_Institution

Escola Super. de Tecnol. e Gestao, Polytech. Inst. of Leiria, Alto Vieiro, Portugal

fYear

2011

fDate

7-9 July 2011

Firstpage

1

Lastpage

6

Abstract

State estimator is vital for on-line power system monitoring, analysis and control. With the increasing use of synchronized phasor measurement units (PMU) in power grids, how to utilize phasor measurements to improve the precision of state estimator becomes imperative. In this paper, a state estimator including voltage phasors, injected current phasors and traditional measurements is proposed. 14 IEEE bus system and 30 IEEE bus system are used as test systems and the simulation results demonstrate that the presented state estimation algorithm combining traditional SCADA measurements with PMU (Phasor Measurement Unit) measurements for power system state estimation improves the precision greatly.

Keywords

energy management systems; power grids; power system control; power system measurement; power system state estimation; EMS; IEEE bus system; PMU measurements; SCADA measurements; current phasors; energy management system; online power system; power grids; power system analysis; power system control; power system state estimator performance enhancement; synchronized phasor measurement units; voltage phasors; Accuracy; Current measurement; Phase measurement; Phasor measurement units; Power measurement; State estimation; Voltage measurement; EMS; PMU measurements; state estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Energetics (IYCE), Proceedings of the 2011 3rd International Youth Conference on

Conference_Location

Leiria

Print_ISBN

978-1-4577-1494-8

Type

conf

Filename

6028355