Nonlinear Analysis on Transmission Line Parameters Estimation From Noisy Phasorial Measurements

This paper proposes a complete and novel approach for estimation of impedance and admittance parameters of transmission lines from phasorial voltage and current measurements. The work uses the rigorous modeling of the noise on the phasorial measurements, and the solution is obtained based on a nonli...

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Bibliographic Details
Published in:IEEE access 2022, Vol.10, p.1720-1730
Main Authors: De Albuquerque, Felipe Proenca, Da Costa, Eduardo Coelho Marques, Pereira, Ronaldo Francisco Ribeiro, Liboni, Luisa Helena Bartocci, De Oliveira, Mauricio Carvalho
Format: Article
Language:English
Subjects:
Current measurement
Electrical impedance
Estimation
Mathematical models
Noise
Noise levels
Noise measurement
Nonlinear analysis
Nonlinear least squares method
overhead transmission lines
Parameter estimation
Phasor measurement units
phasor measurements
Power transmission lines
statistical analysis
Statistical methods
Transmission line measurements
Transmission lines
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Summary:This paper proposes a complete and novel approach for estimation of impedance and admittance parameters of transmission lines from phasorial voltage and current measurements. The work uses the rigorous modeling of the noise on the phasorial measurements, and the solution is obtained based on a nonlinear approach of the estimation problem. The distortion introduced into the classical nonlinear model from the noisy data is analyzed by using statistical techniques. Finally, the performance of the estimation method is studied considering various load conditions, time-varying loads, number of samples, and noise on the phasorial measurements. The proposed method shows high accuracy in the line parameters estimation, even with distortions due to high noise levels. In addition, a good performance is also observed with a small quantity of samples, which is not observed in the linear solutions.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2021.3139016