Special Issue "Power Electronics for Energy Saving"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Electrical Power and Energy System".

Deadline for manuscript submissions: 29 February 2020.

Special Issue Editors

Dr. Nick Papanikolaou
E-Mail Website
Guest Editor
Electrical and Computer Engineering Department, Democritus University of Thrace, Greece
Tel. +30-2541079921
Interests: power electronics; renewable energy sources; sustainable energy; (smart) microgrids; electrical transportation; energy saving; power quality
Dr. Dionisios Voglitsis
E-Mail
Guest Editor
Electrical and Computer Engineering Department, Democritus University of Thrace, Greece
Interests: power electronics, renewable energy sources, sustainable energy, (smart) microgrids, electrical transportation, energy saving, power quality

Special Issue Information

Dear Colleagues,

Modern energy conversion systems play a key role in the transition in greener, smarter, and more sustainable development. In the contex of this scope recent advances in power electronics have contributed to the optimization of energy saving in all main industrial and social sectors (smart manufacturing, transportations, biomedicine & e-health etc.). The aim of the present Special Issue is to attract original, high-quality papers and review articles proposing advances in power electronics for energy saving, including materials, methods, tools and applications in industrial processes, agricultural processes, transportations, residential systems, smart city concept etc. Major topics include, but are not limited to, the following:

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

Dr. Nick Papanikolaou
Dr. Dionisios Voglitsis
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 papers will be 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 1800 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
  • energy Saving
  • renewable energy sources
  • sustainable energy
  • DC microgrids
  • electrical transportation
  • virtual inertia, solid state transformers
  • power quality
  • energy harvesting
  • energy storage
  • heat recovery
  • thermoelectric applications

Published Papers (3 papers)

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Research

Open AccessArticle
Optimal Allocation of Spinning Reserves in Interconnected Energy Systems with Demand Response Using a Bivariate Wind Prediction Model
Energies 2019, 12(20), 3816; https://doi.org/10.3390/en12203816 - 09 Oct 2019
Abstract
The proposed study presents a novel probabilistic method for optimal allocation of spinning reserves taking into consideration load, wind and solar forecast errors, inter-zonal spinning reserve trading, and demand response provided by consumers as a single framework. The model considers the system contingencies [...] Read more.
The proposed study presents a novel probabilistic method for optimal allocation of spinning reserves taking into consideration load, wind and solar forecast errors, inter-zonal spinning reserve trading, and demand response provided by consumers as a single framework. The model considers the system contingencies due to random generator outages as well as the uncertainties caused by load and renewable energy forecast errors. The study utilizes a novel approach to model wind speed and its direction using the bivariate parametric model. The proposed model is applied to the IEEE two-area reliability test system (RTS) to analyze the influence of inter-zonal power generation and demand response (DR) on the adequacy and economic efficiency of energy systems. In addition, the study analyzed the effect of the bivariate wind prediction model on obtained results. The results demonstrate that the presence of inter-zonal capacity in ancillary service markets reduce the total expected energy not supplied (EENS) by 81.66%, while inclusion of a DR program results in an additional 1.76% reduction of EENS. Finally, the proposed bivariate wind prediction model showed a 0.27% reduction in spinning reserve requirements, compared to the univariate model. Full article
(This article belongs to the Special Issue Power Electronics for Energy Saving)
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Open AccessArticle
On the Conflict between LVRT and Line Protection in LV Distribution Systems with PVs: A Current-Limitation-Based Solution
Energies 2019, 12(15), 2909; https://doi.org/10.3390/en12152909 - 29 Jul 2019
Abstract
The upcoming adoption of low-voltage-ride-through requirements in low-voltage distribution systems is expected to raise significant challenges in the operation of grid-tied inverters. Typically, these inverters interconnect photovoltaic units, which are the predominant distributed energy resource in low-voltage distribution networks, under an umbrella of [...] Read more.
The upcoming adoption of low-voltage-ride-through requirements in low-voltage distribution systems is expected to raise significant challenges in the operation of grid-tied inverters. Typically, these inverters interconnect photovoltaic units, which are the predominant distributed energy resource in low-voltage distribution networks, under an umbrella of standards and protection schemes. As such, a challenging issue that should be considered in low-voltage distribution network applications, regards the coordination between the line protection scheme (typically consisting of a non-settable fuse) and the low-voltage-ride-through operation of photovoltaic generators. During a fault, the fuse protecting a low-voltage feeder may melt, letting the generator to continue its ride-through operation. Considering that the efficacy/speed of the anti-islanding detection is affected by ride-through requirements, this situation can lead to protracted energization of the isolated feeder after fuse melting (unintentional islanding). To address this issue, this paper proposes a fault-current-limitation based solution, which does not require any modification in the existing protection scheme. The operation principles, design, and implementation of this solution are presented, while, its effectiveness is supported by extensive simulations in a test-case low-voltage distribution system. A discussion on the presented results concludes the paper. Full article
(This article belongs to the Special Issue Power Electronics for Energy Saving)
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Open AccessArticle
Design Considerations for Parallel Differential Power Processing Converters in a Photovoltaic-Powered Wearable Application
Energies 2018, 11(12), 3329; https://doi.org/10.3390/en11123329 - 29 Nov 2018
Abstract
Solar photovoltaic (PV) power is a widely used to supply power to the electric grid but can also be used in lower-power emerging applications, like in wearables or the internet of things. One fundamental challenge of using PV power in flexible wearable applications [...] Read more.
Solar photovoltaic (PV) power is a widely used to supply power to the electric grid but can also be used in lower-power emerging applications, like in wearables or the internet of things. One fundamental challenge of using PV power in flexible wearable applications is that individual PV modules point at various angles, thus receiving different light intensities. Using a series configuration for the PV modules greatly decreases power utilization under uneven irradiance conditions. Parallel differential power processing (DPP) converters are employed to address this power reduction problem, while maintaining individual PV control and maximizing output power. Two parallel DPP configurations, with and without a front-end converter, are analyzed and compared for a target battery-charging application. The DPP system without a front-end converter shows consistently high performance and operates properly over a wider range of lighting conditions. Maximum power point tracking (MPPT) algorithms are also examined for parallel DPP systems. When the MPPT parameters are properly calibrated, simulation results indicate that voltage-offset resistive control is the most effective at maximizing PV power under unbalanced lighting conditions. Full article
(This article belongs to the Special Issue Power Electronics for Energy Saving)
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