Nonlinear Analysis on Transmission Line Parameters Estimation From Noisy Phasorial Measurements

被引：8

作者：

De Albuquerque, Felipe Proenca ^{[1
]}

Marques Da Costa, Eduardo Coelho ^{[1
]}

Ribeiro Pereira, Ronaldo Francisco ^{[1
,2
]}

Bartocci Liboni, Luisa Helena ^{[3
]}

De Oliveira, Mauricio Carvalho ^{[4
]}

机构：

[1] Univ Sao Paulo, Polytech Sch, BR-05508070 Sao Paulo, Brazil

[2] Fed Univ Acre UFAC, BR-69920900 Rio Branco, Brazil

[3] Fed Inst Educ Sci & Technol Sao Paulo IFSP, BR-01109010 Sao Paulo, Brazil

[4] Univ Calif San Diego UCSD, La Jolla, CA 92093 USA

来源：

IEEE ACCESS | 2022年 / 10卷

基金：

巴西圣保罗研究基金会;

关键词：

Transmission line measurements; Mathematical models; Estimation; Power transmission lines; Noise measurement; Current measurement; Phasor measurement units; Nonlinear least squares method; parameter estimation; phasor measurements; statistical analysis; overhead transmission lines; PMU; UNCERTAINTY;

D O I：

10.1109/ACCESS.2021.3139016

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

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.

引用

页码：1720 / 1730

页数：11