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Planning, Operation and Control of Power Systems with Large Amounts...
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Planning, Operation and Control of Power Systems with Large Amounts of Variable Renewable Generation

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: closed (15 December 2024) | Viewed by 12836

Special Issue Editor

Dr. Emilio Gomez-Lazaro

E-Mail Website
Guest Editor
Renewable Energy Research Institute, Universidad de Castilla-La Mancha (UCLM), 02071 Albacete, Spain
Interests: power system operation with large amounts of variable generation; design and modelling; maintenance of renewable energy power installations; microgrids
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In today's world, the feeling of scarcity is increasingly prevalent across all sectors of our society. However, this sensation becomes particularly acute when we focus on the electrical sector. The relentless growth in electricity demand, coupled with the significant constraints of traditional energy generation methods reliant on large power plants, has created a challenging situation. Additionally, the imperative to reduce greenhouse gas emissions has intensified the need for a comprehensive response, one that necessitates the collective efforts of the scientific community to establish an efficient, sustainable, and environmentally friendly electrical system.

In this Special Issue, we will explore these challenges in depth and provide technical solutions that can contribute to the establishment of a resilient and eco-friendly electrical infrastructure. Given recent years' political instability, which has resulted in significant economic challenges, the solutions presented in this Special Issue will prioritize the efficient utilization of existing resources. Consequently, the aim is to create an electrical system that is both reliable and cost-effective.

Technical Committee Member
Name: Javier Jimenez-Ruiz
Affiliation:  Renewable Energy Research Institute and DIEEAC-ETSII-AB, Universidad de Castilla-La Mancha, 02006 Albacete, Spain
Email: Javier.JimenezRuiz@uclm.es
Homepage: https://www.javierruizjimenez.com/
Research Interests: power system operation with large amounts of variable renewable generation; design and modelling of wind farms and wind turbines

You may choose our Joint Special Issue in Electricity.

Dr. Emilio Gomez-Lazaro
Guest Editor

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. Electronics 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 2400 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

  • grid integration
  • power system reliability
  • power system management
  • renewable energy
  • power electronics applied to power systems

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Published Papers (4 papers)

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Research

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35 pages, 7555 KiB  
Article
Performance Analysis of a Wireless Power Transfer System Employing the Joint MHN-IRS Technology
by Romans Kusnins, Kristaps Gailis, Janis Eidaks, Deniss Kolosovs, Ruslans Babajans, Darja Cirjulina and Dmitrijs Pikulins
Electronics 2025, 14(3), 636; https://doi.org/10.3390/electronics14030636 - 6 Feb 2025
Viewed by 695
Abstract
The present study is concerned with the power transfer efficiency enhancement using a combination of the multi-hop node (MHN) and the Intelligent Reflecting Surface (IRS)-based passive beamforming technologies. The primary objective is to ensure a high RF-DC converter power conversion efficiency (PCE) used [...] Read more.
The present study is concerned with the power transfer efficiency enhancement using a combination of the multi-hop node (MHN) and the Intelligent Reflecting Surface (IRS)-based passive beamforming technologies. The primary objective is to ensure a high RF-DC converter power conversion efficiency (PCE) used at the receiving end, which is difficult to achieve due to path loss and multi-path propagation. An electronically tunable reconfigurable reflectarray (RRA) designed to operate at the sub-GHz ISM band (865.5 MHz) is utilized to implement the IRS concept. Both the MHN and RRA were developed and studied in our earlier research. The RRA redirects the reflected power-carrying wave amplified by the MHN toward the intended receiver. It comprises two layers: the RF layer containing tunable phase shifters and the ground plane. Each phase shifter comprises two identical eight-shaped metal patches coupled by a pair of varactor diodes used to achieve the reflection phase tuning. The phase gradient method is used to synthesize the RRA phase profiles, ensuring different desired reflection angles. The RRA prototype, composed of 36 phase shifters, is employed in conjunction with the MHN equipped with two antennas and an amplifier. The RRA parameter optimization is accomplished by randomly varying the varactor diode voltages and measuring the corresponding received power levels until the power reflected in the desired direction is maximized. Two measurement scenarios are examined: power transmission without and with the MHN. In the first scenario, the received power is calculated and measured at several distinct beam steering angles for different distances between the Tx antenna and RRA. The same procedure is applied to different distances between the RRA and MHN in the second scenario. The effect of slight deviations in the operating frequency from the designed one (865.5 MHz) on the RRA performance is also examined. Additionally, the received power levels for both scenarios are estimated via full-wave analysis performed using the full-wave simulation software Ansys HFSS 2023 R1. A Huygens’ surface equivalence principle-based model decomposition method was developed and employed to reduce the CPU time. The calculated results are consistent with the measured ones. However, some discrepancies attributed to the adverse effect of RRA diode biasing lines, manufacturing tolerances, and imperfection of the indoor environment model are observed. Full article
(This article belongs to the Special Issue Planning, Operation and Control of Power Systems with Large Amounts of Variable Renewable Generation)
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20 pages, 1681 KiB  
Article
Combined Use of Python and DIgSILENT PowerFactory to Analyse Power Systems with Large Amounts of Variable Renewable Generation
by Javier Jiménez-Ruiz, Andrés Honrubia-Escribano and Emilio Gómez-Lázaro
Electronics 2024, 13(11), 2134; https://doi.org/10.3390/electronics13112134 - 30 May 2024
Cited by 3 | Viewed by 3668
Abstract
Over the last decade considerable efforts have been made to reduce greenhouse gas emissions, leading to the significant development and implementation of renewable energy plants across all power systems in the world. Wind energy has consolidated its position as one of the two [...] Read more.
Over the last decade considerable efforts have been made to reduce greenhouse gas emissions, leading to the significant development and implementation of renewable energy plants across all power systems in the world. Wind energy has consolidated its position as one of the two key energy sources (in conjunction with solar photovoltaics) to achieve completely green power systems. Integrating wind energy into power systems is a more complicated task compared to traditional generation systems, as wind energy relies on a variable energy source characterised by high variability. Several tools currently exist to simulate the effect of wind energy generation in power systems, but they often lack the versatility demanded by researchers. This paper analyses how both Python 3.11 and DIgSILENT PowerFactory 2024 can be used synergistically to assess the implementation of wind power plants, highlighting how the use of these two tools combined can be of great interest for both researchers and grid operators. Full article
(This article belongs to the Special Issue Planning, Operation and Control of Power Systems with Large Amounts of Variable Renewable Generation)
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35 pages, 1070 KiB  
Article
Modeling of Induction Motors and Variable Speed Drives for Multi-Domain System Simulations Using Modelica and the OpenIPSL Library
by Fernando Fachini, Marcelo de Castro, Tetiana Bogodorova and Luigi Vanfretti
Electronics 2024, 13(9), 1614; https://doi.org/10.3390/electronics13091614 - 23 Apr 2024
Cited by 2 | Viewed by 2764
Abstract
This paper introduces an innovative method for characterizing, implementing, and validating both three-phase and single-phase induction motor models, accompanied by a variable speed drive model. The primary goal is to investigate interactions between the electrical power grid and other dynamic domains (e.g., thermofluidic) [...] Read more.
This paper introduces an innovative method for characterizing, implementing, and validating both three-phase and single-phase induction motor models, accompanied by a variable speed drive model. The primary goal is to investigate interactions between the electrical power grid and other dynamic domains (e.g., thermofluidic) that impact motor/load drive behavior. Our approach involves establishing a mechanical interface based on a physically meaningful equation linking motor torque/speed to the electrical model in the phasor domain. This allows seamless integration of diverse domain subsystems into a unified multi-domain model using Modelica v4.0.0 and the OpenIPSL library v3.0.1, overcoming co-simulation limitations. The proposed model, which requires only one Modelica-compliant tool for simulation, introduces additional dynamics through the mechanical interface, enabling explicit simulation of load disturbances based on constitutive physics. This deepens our understanding of dynamic interactions between the electrical power domain and other subsystems connected through the motor. We detail the modeled components using mathematical equations and textual descriptions, emphasizing the Modelica modeling approach. Simulation examples validate the implementation, demonstrating the multi-domain modeling capabilities of the newly developed components. Full article
(This article belongs to the Special Issue Planning, Operation and Control of Power Systems with Large Amounts of Variable Renewable Generation)
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Review

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27 pages, 3614 KiB  
Review
Critical Review on the Sustainability of Electric Vehicles: Addressing Challenges without Interfering in Market Trends
by Sergi Obrador Rey, Lluc Canals Casals, Levon Gevorkov, Lázaro Cremades Oliver and Lluís Trilla
Electronics 2024, 13(5), 860; https://doi.org/10.3390/electronics13050860 - 23 Feb 2024
Cited by 6 | Viewed by 4904
Abstract
The primary focus in electrifying the transportation sector should be sustainability. This can be effectively attained through the application of the seven eco-efficiency principles, which constitute the global standard for assessing the sustainability of products. Consequently, this framework should guide the development of [...] Read more.
The primary focus in electrifying the transportation sector should be sustainability. This can be effectively attained through the application of the seven eco-efficiency principles, which constitute the global standard for assessing the sustainability of products. Consequently, this framework should guide the development of current electric vehicle designs. The first section of the present article assesses the alignment of the automotive industry with these sustainability requirements. Results show that even though the electric vehicle promotes the use of cleaner energy resources, it falls short of adhering to the remaining principles. The implementation of advanced models in battery management systems holds great potential to enhance lithium-ion battery systems’ overall performance, increasing the durability of the batteries and their intensity of use. While many studies focus on improving current electric equivalent models, this research delves into the potential applicability of Reduced-Order Model techniques for physics-based models within a battery management systems context to determine the different health, charge, or other estimations. This study sets the baseline for further investigations aimed at enhancing the reduced-order physics-based modeling field. A research line should be aimed at developing advanced and improved cell-state indicators, with enhanced physical insight, for various lithium-ion battery applications. Full article
(This article belongs to the Special Issue Planning, Operation and Control of Power Systems with Large Amounts of Variable Renewable Generation)
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