Real-time estimation of transmission line impedance based on modal analysis theory

Author

Asti, G.A. ; Kurokawa, S. ; Costa, E.C.M. ; Pissolato, J.

Author_Institution

Unesp - Univ. Estadual Paulista, Ilha Solteira, Brazil

fYear

2011

Firstpage

1

Lastpage

7

Abstract

The objective of this paper is to show a methodology to estimate the longitudinal parameters of transmission lines. The method is based on the modal analysis theory and developed from the currents and voltages measured at the sending and receiving ends of the line. Another proposal is to estimate the line impedance in function of the real-time load apparent power and power factor. The procedure is applied for a non-transposed 440 kV three-phase line.

Keywords

modal analysis; parameter estimation; power factor; power overhead lines; transmission line theory; longitudinal parameter estimation; modal analysis theory; nontransposed three-phase line; overhead transmission line; power factor; real-time load apparent power; transmission line impedance real-time estimation; voltage 440 kV; Current measurement; Impedance; Power transmission lines; Soil; Transmission line matrix methods; Transmission line measurements; Voltage measurement; Parameters estimation; Transmission line modeling; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting, 2011 IEEE

Conference_Location

San Diego, CA

ISSN

1944-9925

Print_ISBN

978-1-4577-1000-1

Electronic_ISBN

1944-9925

Type

conf

DOI

10.1109/PES.2011.6038983

Filename

6038983