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Real-time estimation of transmission line impedance based on modal analysis theory
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 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. © 2011 IEEE.
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Silva, R. C.; Kurokawa, S.; Costa, E. C M; Pissolato, J.
Comparison Between Traditional Single-phase Auto Reclosing And Adaptive Technique Based On Harmonic Content Measurement Dias; Ozenir; Tavares; Maria Cristina
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 ...