Optimal selection and positioning of conductors in multi-circuit overhead transmission lines using evolutionary computing

Acosta, Jhair S.; Tavares, Maria Cristina

doi:10.1016/j.epsr.2019.106174

Cited by 18 publications

(12 citation statements)

References 12 publications

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“…Due to the constraints related to safety distances, audible noise levels and the electromagnetic environment, significant challenges are associated with economically developed and densely populated urban areas. The land cost associated with the development of new transmission lines can significantly affect the economic viability of these projects [11]- [13]. Another potential solution is the use of underground cables.…”

Section: Introductionmentioning

confidence: 99%

“…Doublecircuit and quadruple-circuit overhead transmission lines on same tower are already widely used in many countries. These multi-circuit overhead transmission lines can be of the same voltage levels, but also towers with multiple voltage levels can be encountered [11], [15], [16]. Specific challenges are related to high voltage substations at the entrances of which there are often several parallel overhead transmission lines.…”

Section: Introductionmentioning

confidence: 99%

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Novel Method for Magnetic Flux Density Estimation in the Vicinity of Multi-Circuit Overhead Transmission Lines

et al. 2022

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In this paper, a novel method for the magnetic flux density estimation in the vicinity of multi-circuit overhead transmission lines is proposed. The proposed method is based on a fully connected feed-forward artificial neural network model that is trained to estimate the magnetic flux density vector components for a range of single-circuit overhead transmission lines. The proposed algorithm is able to simplify estimation process in instances when there are two or more geometrically identical circuits present in the multi-circuit overhead transmission line. In such instances, artificial neural network model is employed to estimate the magnetic flux density distribution over a considered lateral profile for only one of such circuits. The magnetic flux density estimates of the other geometrically identical circuits are derived from these results. The proposed methodology defines the resultant magnetic flux density for the multi-circuit overhead transmission line in terms of the contributions made by individual circuits. The application of the proposed magnetic flux density estimation method is demonstrated on several multicircuit configurations of overhead transmission lines. The performance of the proposed method is compared with the Biot-Savart law based method calculation results as well as with field measurement results. INDEX TERMSArtificial Neural Network (ANN), Biot-Savart (BS) law based method, Current intensity, Magnetic flux density, Multi-Circuit Overhead Transmission Lines.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel Method for Magnetic Flux Density Estimation in the Vicinity of Multi-Circuit Overhead Transmission Lines

et al. 2022

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“…When designing new transmission lines, it is necessary to take into account numerous constraints, such as capacity limits, safety distances, maximum allowable electric and magnetic fields, noise levels, etc. [1]- [4]. Furthermore, it is important to verify that these aforementioned constraints are also satisfied by the overhead transmission lines that are already in operation.…”

Section: Introductionmentioning

confidence: 99%

Determination of Electric and Magnetic Field Calculation Uncertainty in the Vicinity of Overhead Transmission Lines

Alihodžić

Mujezinović

Turajlić

et al. 2022

J. Microw. Optoelectron. Electromagn. Appl.

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This paper presents a new approach for uncertainty determination of the electric field intensity and magnetic flux density calculation in the vicinity of overhead transmission lines. The proposed method is based on the law of propagation of uncertainty as defined in the Guide to the expression of Uncertainty in Measurement. A mathematical model is developed for determining the electric field intensity and magnetic flux density calculation uncertainty based on the Charge simulation method and method based on Biot -Savart law, respectively. The verification of the proposed method was performed by estimating the uncertainty of the electric field and magnetic flux density calculations for four single circuit and two double circuit high-voltage overhead transmission lines. The analysis of the obtained results demonstrates that the proposed method can be successfully used to determine the uncertainty of electric field intensity and magnetic flux density calculations in the vicinity of overhead transmission lines.

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“…These developments have gradually increased the overall demand for electricity in various industries [1]. Frequent blackouts in the peak period increase the transmission capacity of transmission lines [2,3]. Nowadays, multiple methods to improve the transmission capacity of overhead transmission lines have the characteristics of large investments and long construction periods.…”

Section: Introductionmentioning

confidence: 99%

CFD Analysis of Fluid-Dynamic and Heat Transfer Effects Generated by a Fixed Electricity Transmission Line Interacting with an External Wind

Jia¹,

Shang²,

Nan³

et al. 2022

Fluid Dynamics &Amp; Materials Processing

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The flow past a fixed single transmission conductor and the related heat transfer characteristics are investigated using computational fluid dynamics and a relevant turbulence model. After validating the method through comparison with relevant results in the literature, this thermofluid-dynamic problem is addressed considering different working conditions. It is shown that the resistance coefficient depends on the Reynolds number. As expected, the Nusselt number is also affected by Reynolds number. In particular, the Nusselt number under constant heat flux is always greater than that under a constant wall temperature.

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Optimal selection and positioning of conductors in multi-circuit overhead transmission lines using evolutionary computing

Cited by 18 publications

References 12 publications

Novel Method for Magnetic Flux Density Estimation in the Vicinity of Multi-Circuit Overhead Transmission Lines

Novel Method for Magnetic Flux Density Estimation in the Vicinity of Multi-Circuit Overhead Transmission Lines

Determination of Electric and Magnetic Field Calculation Uncertainty in the Vicinity of Overhead Transmission Lines

CFD Analysis of Fluid-Dynamic and Heat Transfer Effects Generated by a Fixed Electricity Transmission Line Interacting with an External Wind

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