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Advance Research on Power Electronics for Sustainable Energy Conversion Systems
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Advance Research on Power Electronics for Sustainable Energy Conversion Systems

A special issue of Resources (ISSN 2079-9276).

Deadline for manuscript submissions: closed (30 September 2019) | Viewed by 21418

Special Issue Editors

Dr. Nick Papanikolaou

E-Mail Website
Guest Editor
Department of Electrical and Computer Engineering, Democritus University of Thrace, 67132 Xanthi, Greece
Interests: power electronics; renewable energy sources; sustainable energy; (smart) microgrids; electrical transportation; energy saving; power quality
Special Issues, Collections and Topics in MDPI journals
Dr. Anastasios Kyritsis

E-Mail Website
Guest Editor
Environmental Physics, Energy and Environmental Biology Laboratory, Department of Environment, Ionian University, 29100 Panagoula-Zakynthos, Greece
Interests: power electronics applications for RES exploitation; electrification of land transportation; energy saving and power quality improvement; microgrids and smart grids; nZEB and ZEB smart buildings, all-electric and hybrid shipboards
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Modern energy conversion systems have a key role in the transition towards a greener, smarter, and sustainable development. In the context of this scope, recent advances in power electronics contribute to the optimization of energy conversion in terms of energy efficiency and management, electric supply reliability, environmental impact, and smart public services (smart manufacturing, transportations, biomedicine,  e-health, etc.) involving the Internet of things and sensors (IoT and IoS). The aim of the present Special Issue is to attract original high-quality papers and review articles proposing advances in power electronics for sustainable energy conversion systems. Major topics include, but are not limited to:

  • Renewable energy conversion systems; design, modelling, control and integration to modern power systems
  • Energy conversion systems for energy storage; batteries, fuel cells, supercapacitors, flywheels, new trends and concepts
  • (Smart) Microgrids; grid-tied/standalone solutions, energy management
  • Efficient public transportation systems; all-electric vehicles, aircrafts, trains, and ships, electric vehicle charging strategies and techniques, vehicle-to-grid (V2G)
  • Energy harvesting for smart applications, wireless power transfer for Distributed Energy Sources
  • Power electronic concepts for thermoelectric applications; heat recovery systems
  • Power electronic systems for smart buildings and NZEBs

Dr. Nick Papanikolaou
Dr. Anastasios Kyritsis
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. Resources is an international peer-reviewed open access monthly 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 1600 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

  • Power Electronics
  • Renewable Energy Sources
  • Sustainable Energy
  • (Smart) Microgrids
  • Grid Support
  • Ancillary Services
  • Virtual Inertia
  • Solid State Transformers
  • Electrical Transportation
  • Energy Saving
  • Power Quality
  • Energy Harvesting
  • Energy Storage
  • Heat Recovery
  • Thermoelectric Applications

Published Papers (4 papers)

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Research

16 pages, 8629 KiB  
Article
Improved Active and Reactive Control of a Small Wind Turbine System Connected to the Grid
by Theofilos Papadopoulos, Emmanuel Tatakis and Efthymios Koukoulis
Resources 2019, 8(1), 54; https://doi.org/10.3390/resources8010054 - 19 Mar 2019
Cited by 2 | Viewed by 4741
Abstract
This paper deals with the interconnection of a small wind turbine with the low voltage distribution grid and the implementation of an improved control scheme, which also serves educational purposes. Initially the subsystems—wind turbine, rectifying bridge, interleaved boost converter, three-phase inverter, interconnection inductors, [...] Read more.
This paper deals with the interconnection of a small wind turbine with the low voltage distribution grid and the implementation of an improved control scheme, which also serves educational purposes. Initially the subsystems—wind turbine, rectifying bridge, interleaved boost converter, three-phase inverter, interconnection inductors, lifting transformer, filtering capacitors—are investigated, in order to explain their selection, based on the LEMEC (Laboratory of Electromechanical Energy Conversion, Department of Electrical Engineering, UoP) educational policy. Afterwards, the three-phase inverter control scheme, which is responsible for controlling its input voltage (voltage of the DC Bus) and consequently the active power, as well as the reactive power injected into the grid (VQ control) is analyzed. This is accomplished through DQ transformation and PI controllers which are responsible for generating the appropriate reference signals, to generate the required Space Vector Pulse Width Modulation (SVPWM) pulses to drive the semiconductor switches of the inverter. In addition, it is explained how this particular control method can compensate reactive power in the grid, even in apnea, by automatically charging the DC Bus. Finally, simulation and experimental results are given to prove the proposed control method effectiveness. Full article
(This article belongs to the Special Issue Advance Research on Power Electronics for Sustainable Energy Conversion Systems)
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28 pages, 3994 KiB  
Article
The Analysis of Technical Trend in Islanding Operation, Harmonic Distortion, Stabilizing Frequency, and Voltage of Islanded Entities
by Thanh Son Tran, Duc Tuyen Nguyen and Goro Fujita
Resources 2019, 8(1), 14; https://doi.org/10.3390/resources8010014 - 08 Jan 2019
Cited by 14 | Viewed by 4910
Abstract
This paper focuses on autonomous multi-islanded entities and the seamless reconnection to the main grid as the self-healing ability of the future power system. The minimization of power quality issues (mainly that of voltage, frequency, and harmonics) in such entities based on controllers, [...] Read more.
This paper focuses on autonomous multi-islanded entities and the seamless reconnection to the main grid as the self-healing ability of the future power system. The minimization of power quality issues (mainly that of voltage, frequency, and harmonics) in such entities based on controllers, with or without intercommunication, is also an important part of this paper. The future power system, with the significant penetration of distributed generations (DGs), can rapidly respond to any problem occurring within it by separating into autonomous islanded entities to prevent the disconnection of DGs. As a result, high-quality and continuous power is supplied to consumers. Finally, future research that is necessary for the realization of the future power system is discussed. Full article
(This article belongs to the Special Issue Advance Research on Power Electronics for Sustainable Energy Conversion Systems)
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19 pages, 2817 KiB  
Article
Hemp Cables, a Sustainable Alternative to Harmonic Steel for Cable Nets
by Alberto Viskovic
Resources 2018, 7(4), 70; https://doi.org/10.3390/resources7040070 - 05 Nov 2018
Cited by 4 | Viewed by 5112
Abstract
Recent developments in the field of materials engineering have allowed for the use of natural materials for common structural elements, instead of traditional materials, such as steel or concrete. In this context, hemp is a very interesting material for structural building design. This [...] Read more.
Recent developments in the field of materials engineering have allowed for the use of natural materials for common structural elements, instead of traditional materials, such as steel or concrete. In this context, hemp is a very interesting material for structural building design. This paper proposes the use of hemp cables for roofs with hyperbolic paraboloid cable nets, which sees the use of a sustainable material for structure, thus having a very low environmental impact, in terms of structural thickness and amount of material. The paper discusses five different plan sizes and two different hyperbolic paraboloid surface radius of curvatures. The cable traction, which gives the cable net stiffness, was varied in order to give a parametric database of structural response. Three dimensional geometrically nonlinear analyses were carried out on different geometries (i.e., 10), cable net stiffnesses (i.e., 8), and materials (i.e., 2). Traditional harmonic steel and hemp cables are compared, in terms of vertical displacements and natural periods under dead and permanent loads. Full article
(This article belongs to the Special Issue Advance Research on Power Electronics for Sustainable Energy Conversion Systems)
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18 pages, 7609 KiB  
Article
Energy Saving Estimation of Athens Trolleybuses Considering Regenerative Braking and Improved Control Scheme
by Nena Apostolidou and Nick Papanikolaou
Resources 2018, 7(3), 43; https://doi.org/10.3390/resources7030043 - 22 Jul 2018
Cited by 7 | Viewed by 5859
Abstract
In this work, the electromechanical system of the 8000-series of Athens trolleybuses, based on data provided by OSY S.A., is analyzed. Those data were used to develop a valid model in order to estimate the total energy consumption of the vehicle under any [...] Read more.
In this work, the electromechanical system of the 8000-series of Athens trolleybuses, based on data provided by OSY S.A., is analyzed. Those data were used to develop a valid model in order to estimate the total energy consumption of the vehicle under any possible operating conditions. In addition, an effort is made to estimate the energy saving potential if the wasted energy—in the form of heat—during braking or downhill courses is recovered (regenerative braking) and retrofitted during normal operation. This process requires the installation of appropriate electrical apparatus to recover and temporarily store this energy amount. Moreover, due to the fact that the main engine of the system is an asynchronous electric machine, its driving scheme is also of interest. This study assumes the current driving scheme, that is the direct vector control (DVC), and proposes an alternative control method, the direct torque control (DTC). Energy consumption/saving calculations highlight the effectiveness of incorporating regenerative braking infrastructure in trolleybuses transportation systems. Finally, a sustainable hybrid energy storage unit that supports regenerative braking is proposed. Full article
(This article belongs to the Special Issue Advance Research on Power Electronics for Sustainable Energy Conversion Systems)
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