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Energies
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Research and Technology Development in Electric Power Systems
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Research and Technology Development in Electric Power Systems

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

Deadline for manuscript submissions: 28 May 2024 | Viewed by 4130

Special Issue Editors

Dr. Luigi Rubino

E-Mail Website
Guest Editor
Department of Engineering, University of Campania “Luigi Vanvitelli” , Via Roma 29, 81031 Aversa, CE, Italy
Interests: power electronic converters; electrical machines and drives
Special Issues, Collections and Topics in MDPI journals
Dr. Quanxue Guan

E-Mail Website
Guest Editor
School of Intelligent Systems Engineering, Sun Yat-sen University, Guangzhou, China
Interests: power electronic converters; hybrid AC/DC microgrid; extreme fast charging for electric vehicles; wind energy conversion system; wide band-gap devices
Dr. Guido Rubino

E-Mail Website
Guest Editor
Department of Astronautical, Electrical and Energy Engineering, Sapienza University of Rome, Via Delle Sette Sale 12/B, 00184 Rome, Italy
Interests: energy conversion; power systems; power electronic converters; electrical machines and drives
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The market clearly indicates that the future of the mobility will be electric. This trend grows the electric energy market volume and opens new challenges for the research community. Production, transmission, and distribution systems are critical as well as utilization systems. The research cover also new components, design, testing and fault detection methods.

This Special Issue aims to present and disseminate the most recent advantages related to the theory, design, modelling, application, control, testing of Electric Power Systems and generally all related aspects.

Topics of interest for publication include, but are not limited to:

  • Generation methods, including renewable and classical power sources
  • Transmission (including HV AC/DC) system design with related protection methods and circuits
  • Power flow analysis and smart grid management
  • Failure diagnosis and detection
  • Active power and frequency control
  • Electromagnetic transients
  • Coordination of isolation
  • Protections in transmission systems
  • Interaction between electromagnetic transients and electromechanical transients
  • Power converters (modelling, design, control)

Dr. Luigi Rubino
Dr. Guan Quanxue
Dr. Guido Rubino
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

  • transmission and distribution system
  • methods and protection circuits for transmission systems
  • coordination of insulation
  • diagnosis and fault detection
  • power system management
  • power system stability
  • power quality

Published Papers (2 papers)

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Research

18 pages, 4782 KiB  
Article
Improvement of Distance Protection with SVM on PV-Fed Transmission Lines in Infeed Conditions
by Yasar Beyazit Yoldas and Recep Yumurtacı
Energies 2023, 16(6), 2587; https://doi.org/10.3390/en16062587 - 09 Mar 2023
Cited by 1 | Viewed by 1749
Abstract
Photovoltaic (PV) power plants have comparatively weak infeed characteristics, unlike conventional synchronous generators. The controllability of grid-connected inverters and the limited overcurrent capability of power electronic devices means that the characteristics of faults on transmission lines fed by PV power stations are substantially [...] Read more.
Photovoltaic (PV) power plants have comparatively weak infeed characteristics, unlike conventional synchronous generators. The controllability of grid-connected inverters and the limited overcurrent capability of power electronic devices means that the characteristics of faults on transmission lines fed by PV power stations are substantially different than those on transmission lines fed by conventional sources. Operating performances of distance relays on PV-fed transmission line are unveiled. This paper analyses the impact of PV-fed transmission lines in infeed conditions on distance protection. Fault signals on the transmission line were generated by Digsilent PowerFactory software. Then, fault signals were analyzed by discrete Fourier transformation (DFT) with MATLAB software. The measured current and voltage signals were preprocessed first with DFT, and then machine learning via a support vector machine (SVM) was used for regression. This research proposes an improvement on distance protection with SVM for preventing maloperation in infeed conditions on PV fed transmission lines. The average accuracy was up to 95.6% in this study. The simulation was performed at different locations along the transmission line with different types of fault on a given power system model with the PV power plant. Full article
(This article belongs to the Special Issue Research and Technology Development in Electric Power Systems)
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17 pages, 1160 KiB  
Article
Linear Programming-Based Power Management for a Multi-Feeder Ultra-Fast DC Charging Station
by Luigi Rubino, Guido Rubino and Raffaele Esempio
Energies 2023, 16(3), 1213; https://doi.org/10.3390/en16031213 - 22 Jan 2023
Cited by 4 | Viewed by 1682
Abstract
The growing number of electric vehicles (EVs) affects the national electricity system in terms of power demand and load variation. Turning our attention to Italy, the number of vehicles on the road is 39 million; this represents a major challenge, as they will [...] Read more.
The growing number of electric vehicles (EVs) affects the national electricity system in terms of power demand and load variation. Turning our attention to Italy, the number of vehicles on the road is 39 million; this represents a major challenge, as they will need to be recharged constantly when the transition to electric technology is complete. If we consider that the average power is 55 GW and the installed system can produce 120 GW of peak power, we can calculate that with only 5% of vehicles in recharging mode, the power demand increases to 126 GW, which is approximately 140% of installed power. The integration of renewable energy sources will help the grid, but this solution is less useful for handling large load variations that negatively affect the grid. In addition, some vehicles committed to public utility must have a reduced stop time and can be considered to have higher priority. The introduction of priorities implies that the power absorption limit cannot be easily introduced by limiting the number of charging vehicles, but rather by computing the power flow that respects constraints and integrates renewable and local storage power contributions. The problem formulated in this manner does not have a unique solution; in this study, the linear programming method is used to optimise renewable resources, local storage, and EVs to mitigate their effects on the grid. Simulations are performed to verify the proposed method. Full article
(This article belongs to the Special Issue Research and Technology Development in Electric Power Systems)
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