Title :
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
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;
Conference_Titel :
Power and Energy Society General Meeting, 2011 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-1000-1
Electronic_ISBN :
1944-9925
DOI :
10.1109/PES.2011.6038983
