Investigation of Online Corona Losses as a Function of Operating Voltage Based on PMU Data

Diachenko, Anna; Sidorov, K. M.; Hussein, A Abbass; Kononov, Yuri

doi:10.1109/elma.2019.8771676

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Peek's formula has been used by several authors for the analysis of corona losses [30][31][32]. It has also been used as a basis for the development of new calculation methods [22,33,34].…”

Section: Introductionmentioning

confidence: 99%

A new method to calculate corona losses for active conductors considering real transmission line unbalance

Llamo‐Laborí

Fuentefria

2022

The Journal of Engineering

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This paper shows the characteristics of an algorithm that calculates the corona losses of transmission lines. The line can have up to four circuits, with any configuration, with single or bundled conductors, and taking into account the line unbalance. This is achieved by modelling the lines in phase quantities, for active conductor, and calculating the corona losses for each one. The results are given per active conductor and average per bundle. In lines with several conductors per phase the results are given per circuit and a total one. These characteristics allow choosing the most convenient configuration and spacing for the conductor bundles, which will reduce and balance corona losses. The results found with this method show that the value of the losses calculated with the formulas with transmission lines symmetrically transposed is conservative. The configuration and the number of conductors per phase have a noted influence in the value and the asymmetry of the corona losses. In double circuit lines, corona losses can be reduced by changing the arrangement of the phases of circuit two in reference to circuit one, with the advantage that, at the design stage, those changes are costless.

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“…Peek's formula has been used by several authors for the analysis of corona losses [30][31][32]. It has also been used as a basis for the development of new calculation methods [22,33,34].…”

Section: Introductionmentioning

confidence: 99%

A new method to calculate corona losses for active conductors considering real transmission line unbalance

Llamo‐Laborí

Fuentefria

2022

The Journal of Engineering

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Estimation of 500 kV power transmission line parameters with PMU

et al. 2021

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This work is devoted to the research of the real-time estimation of 500 kV power transmission lines parameters with PMU based on the solution of the optimization problem of minimizing the root-mean-square deviations of the specific line parameters or the sum of the modules of the correlation coefficients between the specific parameters and the sum of the squares of the voltages or currents measured at the ends of the line. Independent optimization variables are the correction factors of the measuring systems of currents and voltages. Based on an artificially simulated PMU dataset with specified Gaussian noise and systematic errors, it is shown that the use of correlation coefficients in the objective function is more effective than standard deviations. All 5 estimated coefficients turned out to be closer to the reference values. The results of calculations are obtained from the data of real PMUs for an operating 500 kV line with a length of 504.6 km. The deviation of the specific capacitive conductivity from the nominal value is 0.13%, compared with - 0.29% when using the sum of squares of deviations as an objective function.

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The Reactive Corona Effect Investigation Based on PMU Measurements in a Real 500 kV TL

Kononov

Diachenko

2022

2022 International Conference on Electrical, Computer and Energy Technologies (ICECET)

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Investigation of Online Corona Losses as a Function of Operating Voltage Based on PMU Data

Cited by 3 publications

References 4 publications

A new method to calculate corona losses for active conductors considering real transmission line unbalance

A new method to calculate corona losses for active conductors considering real transmission line unbalance

Estimation of 500 kV power transmission line parameters with PMU

The Reactive Corona Effect Investigation Based on PMU Measurements in a Real 500 kV TL

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