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Special Issue "MV and HV Transmission Lines"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F: Electrical Engineering".

Deadline for manuscript submissions: closed (20 May 2021) | Viewed by 2573

Special Issue Editors

Department of Astronautical, Electrical and Energetic Engineering University of Rome La Sapienza Via Eudossiana 18, 00184 Rome, Italy
Interests: electromagnetic compatibility; energy harvesting; graphene electrodynamics; numerical and analytical techniques for modeling high-speed printed circuit boards; shielding; transmission lines; periodic structures; devices based on graphene
Special Issues, Collections and Topics in MDPI journals
DIAEE—Electrical Engineering Division, University of Rome “La Sapienza”, Via Eudossiana 18, 00184 Rome, Italy
Interests: EMC; shielding; grounding; electrical systems modelling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The new scenarios represented by the widespread of distributed sources and the foreseen increase in the number of electric vehicles call for an accurate analysis of MV and HV distribution networks. In this context, cables and overhead lines represent crucial components as to their accurate modelling and analysis. DC and AC lines are of interest and, because of power line carrier technology (e.g., in smart grids) or the possibility to recharge vehicles’ batteries with sinusoidal waveforms of up to several tens of kilohertz, the modelling of these components is requested up to potentially hundreds of kilohertz. Furthermore, when the insulation characteristics have to be investigated, the interest in the case of fast transients may range from DC up to several MHz.

This Special Issue will deal with novel models and/or methods for power and telecommunications transmission lines. Topics of interest include, but are not limited to:

  • Cable modeling (impedance and ampacity);
  • Overhead line modeling;
  • Faults and insulation analysis;
  • Losses;
  • Harmonics propagation;
  • Power line carrier characteristics and performance;
  • Cables earthing and grounding

Prof. Dr. Rodolfo Araneo
Prof. Dr. Salvatore Celozzi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (1 paper)

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Optimization of Thermal Backfill Configurations for Desired High-Voltage Power Cables Ampacity
Energies 2021, 14(5), 1452; https://doi.org/10.3390/en14051452 - 07 Mar 2021
Cited by 6 | Viewed by 1795
The ampacity of high-voltage power cables depends, among others, on their core cross-sectional area as well as thermal resistivity of the thermal backfill surrounding the cables. The cross-sectional area of the power cables’ core is selected according to the expected power to be [...] Read more.
The ampacity of high-voltage power cables depends, among others, on their core cross-sectional area as well as thermal resistivity of the thermal backfill surrounding the cables. The cross-sectional area of the power cables’ core is selected according to the expected power to be transferred via the cable system. Usually, the higher the power transfer required, the higher the cross-sectional area of the core. However, the cost of high-voltage power cables is relatively high and strictly depends on the dimensions of the core. Therefore, from the economic point of view, it is interesting to focus on the improvement of the thermal condition around the cables, by changing the dimension of the thermal backfill, instead of increasing the power cables’ core cross-sectional area. In practice, it is important to find the optimal dimensions of both cable core and thermal backfill to achieve the economically attractive solution of the power cable transfer system. This paper presents a mathematical approach to the power-cable system design, which enables selecting the cost-optimal cross-section of a power cable core depending on the dimensions of the thermal backfill. The proposal herein allows us to indicate the condition in which it is advantageous to increase the core cross-sectional area or to expand the dimension of the backfill. In this approach, the optimal backfill geometry can also be evaluated. The investment costs of the 110 kV power cable system with the core cross-sectional areas consecutively equal to 630, 800 and 1000 mm2 have been compared. Full article
(This article belongs to the Special Issue MV and HV Transmission Lines)
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