Transmission line impedance estimation based on PMU measurements

Author

Matica, Renata ; Kirincic, Vedran ; Skok, Srdjan ; Marusic, Ante

Author_Institution

HEP Transm. Syst. Operator, Zagreb, Croatia

fYear

2013

fDate

1-4 July 2013

Firstpage

1438

Lastpage

1444

Abstract

State estimation is one of the most important network management functions, responsible for determining the actual state of the power network based on the network model, available telemetry (analog measurements and digital device statuses) and pseudo measurements. Phasor measurement units (PMUs) provide valuable instantaneous information regarding power system stability and security, and thus have the potential to improve the reliability of the state estimator. Also, measured synchrophasors can be used for transmission line impedance estimation, which results in more accurate power system state estimation, in comparison with the traditional approach that uses catalogue values of the transmission line impedance.

Keywords

electric impedance; phasor measurement; power system security; power system stability; power transmission lines; PMU measurement; phasor measurement unit; power network management function; power system security; power system stability; power system state estimation; pseudo measurement; synchrophasor; transmission line impedance estimation; Current measurement; Phasor measurement units; Power transmission lines; State estimation; Transmission line measurements; Vectors; Voltage measurement; impedance estimation; phasor measurement unit; power system; state estimation; synchrophasors;

fLanguage

English

Publisher

ieee

Conference_Titel

EUROCON, 2013 IEEE

Conference_Location

Zagreb

Print_ISBN

978-1-4673-2230-0

Type

conf

DOI

10.1109/EUROCON.2013.6625167

Filename

6625167