Actas de congresos
Identification of transmission line parameters from temporal measurements of currents and voltages in their terminals: Influence oh the length line
IEEE Power and Energy Society General Meeting.
Universidade Estadual Paulista (UNESP)
Universidade Estadual de Campinas (UNICAMP)
The objective of this paper is to show a methodology to estimate transmission line parameters. The method is applied in a single-phase transmission line using the method of least squares. In this method the longitudinal and transversal parameters of the line are obtained as a function of a set of measurements of currents and voltages (as well as their derivatives with respect to time) at the terminals of the line during the occurrence of a short-circuit phase-ground near the load. The method is based on the assumption that a transmission line can be represented by a single circuit π. The results show that the precision of the method depends on the length of the line, where it has a better performance for short lines and medium length. © 2012 IEEE.
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Universidade Estadual Paulista (UNESP); Universidade Estadual de Campinas (UNICAMP) (2012-12-11)A transmission line digital model is developed direct in the phase and time domains. The successive modal transformations considered in the three-phase representation are simplified and then the proposed model can be easily ...