Power system state estimator with inclusion of time-synchronized phasor measurements

Author

Presada, V.I.

Author_Institution

Power Eng. Dept., Univ. Politeh. of Bucharest, Bucharest, Romania

fYear

2012

fDate

24-26 May 2012

Firstpage

89

Lastpage

94

Abstract

State estimation provides the platform for advanced security monitoring applications in control centers. It determines a best estimate of the current actual power system based on available SCADA measurements and power system model data. Traditional power system state estimation has been undergoing an essential change because of the extensive application of Phasor Measurement Unit (PMU). PMU data provides the direct measurement of state which can significantly simplify the traditional state estimator and does not require any major changes of the existing state estimator. It is anticipated a gradual migration towards full PMU implementation for utility power systems. The logical direction is towards full observability with PMUs. Due to cost considerations, it is expected that utilities will execute a phased installation of PMUs, that is, batches of PMUs being installed through time. A MATLAB application was developed and simulations were done on IEEE 14 bus system and on IEEE 30 bus system.

Keywords

SCADA systems; phasor measurement; power system security; power system state estimation; synchronisation; IEEE bus system; Matlab; PMU data; SCADA measurements; advanced security monitoring; control centers; logical direction; power system model data; power system state estimator; time-synchronized phasor measurements; utility power systems; Current measurement; Phasor measurement units; Power measurement; Power systems; State estimation; Transmission line measurements; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Optimization of Electrical and Electronic Equipment (OPTIM), 2012 13th International Conference on

Conference_Location

Brasov

ISSN

1842-0133

Print_ISBN

978-1-4673-1650-7

Electronic_ISBN

1842-0133

Type

conf

DOI

10.1109/OPTIM.2012.6231785

Filename

6231785