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Dynamic Rating of Power System Components

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

Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 4434

Special Issue Editors


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Guest Editor
Department of Engineering, University of Napoli Parthenope, 80133 Naples, Italy
Interests: electrical power systems; electric vehicles; optimization models; data analysis; forecasting techniques
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Engineering, University of Napoli Parthenope, 80133 Naples, Italy
Interests: electrical power systems; electric vehicles; optimization models; data analysis; forecasting techniques
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Centre for Processes, Renewable Energies and Energy Systems (PERSEE), MINES ParisTech, PSL University, Sophia Antipolis, France
Interests: renewables integration; forecasting; thermal aspects in power systems; smart grids
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear colleagues,

The optimized exploitation of existing electrical equipment is mandatory to delay the expansion and/or upgrade of existing transmission and distribution networks, avoiding the challenges introduced by allocation limits, space restrictions, and costs but still maintaining the capability to meet the increasing electrical demand. The smart grid paradigm allows for integrating information and power system technologies, thus managing the equipment by its dynamic ratings rather than its static ones, which are often too restrictive.

Dynamic rating modeling of electrical equipment is, however, not exempt from issues, since it is significantly affected by environmental conditions and by the intrinsic uncertainty in thermal modeling. Depending on the considered component, insulation aging, loss of minimum air gaps, dielectric failures, and electrodynamical stresses may occur as consequences of the loading beyond nameplate rating. These effects directly depend on the operating temperatures and on the ability of dissipating the heat losses; thus, any error in evaluating these aspects determines undesired physical consequences on the component itself.

This Special Issue will gather contributions on the dynamic rating of power system components, addressing the thermal modeling aspect and the evaluation of the influence of environmental and weather conditions and the application of dynamic-rating-based procedures for the planning and management of electrical networks and for unlocking the capacity of networks.

The proposals may also concern the economic and risk analysis related to the operation of equipment by the dynamic rating, or contributions for forecasting the variables involved in dynamic rating prediction. Review papers will also be taken into consideration for publication.

Particular attention will be dedicated to research addressing the reproducibility of the results of new proposals and consolidated techniques for dynamic rating. Eventually, papers on research projects involving cooperation among researchers from academia, system operators, and industry are encouraged to foster interactions among stakeholders.

Prof. Dr. Antonio Bracale
Dr. Pasquale De Falco
Dr. Andrea Michiorri
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 2600 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.

Keywords

  • dynamic line rating
  • dynamic transformer rating
  • ampacity modelling
  • overhead and underground conductors
  • thermal models of transformers
  • thermal models of overhead conductors
  • thermal models of underground conductors
  • forecasting for dynamic rating
  • smart grids
  • stochastic modeling
  • weather impact on dynamic rating
  • network planning and operation
  • augmentation of network capacity
  • transmission networks
  • distribution networks
  • risk analysis and economic analysis

Published Papers (2 papers)

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Research

21 pages, 2134 KiB  
Article
Dynamic Rating Management of Overhead Transmission Lines Operating under Multiple Weather Conditions
by Raquel Martinez, Mario Manana, Alberto Arroyo, Sergio Bustamante, Alberto Laso, Pablo Castro and Rafael Minguez
Energies 2021, 14(4), 1136; https://0-doi-org.brum.beds.ac.uk/10.3390/en14041136 - 21 Feb 2021
Cited by 3 | Viewed by 1738
Abstract
Integration of a large number of renewable systems produces line congestions, resulting in a problem for distribution companies, since the lines are not capable of transporting all the energy that is generated. Both environmental and economic constraints do not allow the building new [...] Read more.
Integration of a large number of renewable systems produces line congestions, resulting in a problem for distribution companies, since the lines are not capable of transporting all the energy that is generated. Both environmental and economic constraints do not allow the building new lines to manage the energy from renewable sources, so the efforts have to focus on the existing facilities. Dynamic Rating Management (DRM) of power lines is one of the best options to achieve an increase in the capacity of the lines. The practical application of DRM, based on standards IEEE (Std.738, 2012) and CIGRE TB601 (Technical Brochure 601, 2014) , allows to find several deficiencies related to errors in estimations. These errors encourage the design of a procedure to obtain high accuracy ampacity values. In the case of this paper, two methodologies have been tested to reduce estimation errors. Both methodologies use the variation of the weather inputs. It is demonstrated that a reduction of the conductor temperature calculation error has been achieved and, consequently, a reduction of ampacity error. Full article
(This article belongs to the Special Issue Dynamic Rating of Power System Components)
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21 pages, 2899 KiB  
Article
Extreme Quantiles Dynamic Line Rating Forecasts and Application on Network Operation
by Romain Dupin, Laura Cavalcante, Ricardo J. Bessa, Georges Kariniotakis and Andrea Michiorri
Energies 2020, 13(12), 3090; https://0-doi-org.brum.beds.ac.uk/10.3390/en13123090 - 15 Jun 2020
Cited by 3 | Viewed by 1959
Abstract
This paper presents a study on dynamic line rating (DLR) forecasting procedure aimed at developing a new methodology able to forecast future ampacity values for rare and extreme events. This is motivated by the belief that to apply DLR network operators must be [...] Read more.
This paper presents a study on dynamic line rating (DLR) forecasting procedure aimed at developing a new methodology able to forecast future ampacity values for rare and extreme events. This is motivated by the belief that to apply DLR network operators must be able to forecast their values and this must be based on conservative approaches able to guarantee the safe operation of the network. The proposed methodology can be summarised as follows: firstly, probabilistic forecasts of conductors’ ampacity are calculated with a non-parametric model, secondly, the lower part of the distribution is replaced with a new distribution calculated with a parametric model. The paper presents also an evaluation of the proposed methodology in network operation, suggesting an application method and highlighting the advantages. The proposed forecasting methodology delivers a high improvement of the lowest quantiles’ reliability, allowing perfect reliability for the 1% quantile and a reduction of roughly 75% in overconfidence for the 0.1% quantile. Full article
(This article belongs to the Special Issue Dynamic Rating of Power System Components)
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