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Advances in Electrical Power Conversion for Energy, Transportation and Industry...
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Advances in Electrical Power Conversion for Energy, Transportation and Industry Applications

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

Deadline for manuscript submissions: closed (31 October 2020) | Viewed by 13230

Special Issue Editor

Dr. Aristides Kiprakis

E-Mail Website
Guest Editor
School of Engineering, University of Edinburgh, Faraday Building, Colin MacLaurin Road, Scotland EH9 3BW, UK
Interests: power systems modelling and control; distributed generation; smart grids; onshore (wind and solar) and ocean (wave and tidal) energy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The way that we convert, transmit, and use electrical power is evolving at unprecedented rates: firstly, we see a rapid transformation of electricity generation, distribution, and supply with ubiquitous renewable energy, expansion of smart grids, and introduction of modern electric loads; secondly, the electrification of all modes of transportation on land, sea, and in the air is progressing at an accelerating pace; finally, in the industrial sector, the Industry 4.0 model is becoming the new norm. A common factor among all these advances is the requirement of new, disruptive power conversion technologies and methods, allowing better control, higher efficiency, and improved reliability of the overall system. Energies is therefore announcing a Special Issue on “Advances in Electrical Power Conversion for Energy, Transportation, and Industry Applications”, aiming to capture the current state of the art in research and applications of modern electrical power conversion. We invite high-quality papers in areas including, but not limited to the following:

  • Novel power converters: components, topologies, and systems;
  • Modeling, simulation, and control of power electronic converters;
  • Power electronics for wind energy conversion systems;
  • Photovoltaic (PV) inverters and maximum power point tracking (MPPT);
  • Power converters for smart- and microgrids;
  • Utility scale converters (FACTS, HVDC, solid state transformers, etc.);
  • Energy storage technologies;
  • Transportation electrification and vehicle electronics;
  • Motor drives and inverters;
  • Power quality;
  • Reliability, condition monitoring, fault diagnosis, and prognosis;
  • Wireless power transfer;
  • Energy harvesting;
  • Machine learning applications for energy conversion.

We will consider papers covering the whole spectrum of technology readiness, from blue skies research to reports and case studies illustrating state-of-the-art real-world applications of power conversion in energy, transportation, and industry. We will also welcome comprehensive topical reviews in these areas. As the Guest Editor of this Energies Special Issue, I am delighted to extend this invitation to you and I look forward to receiving your contribution.

Dr. Aristides Kiprakis
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. 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

  • power conversion
  • power electronics
  • inverters
  • electric drives
  • electric vehicles
  • transportation
  • energy storage
  • smart grid
  • microgrid
  • renewable energy
  • photovoltaics
  • wind energy
  • electric motors
  • power quality
  • reliability
  • FACTS
  • HVDC
  • control
  • simulation

Published Papers (4 papers)

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Research

15 pages, 16817 KiB  
Article
An Interleaved Phase-Shift Full-Bridge Converter with Dynamic Dead Time Control for Server Power Applications
by Jia-You Lee, Jheng-Hung Chen and Kuo-Yuan Lo
Energies 2021, 14(4), 853; https://doi.org/10.3390/en14040853 - 06 Feb 2021
Cited by 6 | Viewed by 5322
Abstract
A compact and high-efficiency power converter is the main business of today’s power industry for server power applications. To achieve high efficiency with a low-output ripple, an interleaved phase-shift full-bridge (PSFB) converter is designed, built, and tested for server power applications in this [...] Read more.
A compact and high-efficiency power converter is the main business of today’s power industry for server power applications. To achieve high efficiency with a low-output ripple, an interleaved phase-shift full-bridge (PSFB) converter is designed, built, and tested for server power applications in this study. In this paper, dynamic dead time control is proposed to reduce the switching loss in the light load condition. The proposed technique reduces the turn-off switching loss and allows a wide range of zero-voltage switching. Moreover, the current ripple of the output inductor can be reduced with the interleaved operation. To verify the theoretical analysis, the proposed PSFB converter is simulated, and a 3 kW prototype is constructed. The experimental results confirm that the conversion efficiency is as high as 97.2% at the rated power of 3 kW and 92.95% at the light load of 300 W. The experimental transient waveforms demonstrated that the voltage spike or drop is less than 2 V in the fast-fluctuating load conditions from 0% load to 60% load and 40% load to 100% load. Full article
(This article belongs to the Special Issue Advances in Electrical Power Conversion for Energy, Transportation and Industry Applications)
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15 pages, 45294 KiB  
Article
Cooperative Control for Multi-Module Charging Systems of Ultracapacitors
by Xiaoyong Zhang, Jiaxuan Lei, Heng Li, Hongtao Liao and Jun Peng
Energies 2020, 13(19), 5218; https://doi.org/10.3390/en13195218 - 07 Oct 2020
Cited by 1 | Viewed by 1552
Abstract
Ultracapacitors have recently received great attention for energy storage due to their small pollution, high power density, and long lifetime. In many applications, ultracapacitors need to be charged with a high current, where a multi-module charging system is typically adopted. Although the classical [...] Read more.
Ultracapacitors have recently received great attention for energy storage due to their small pollution, high power density, and long lifetime. In many applications, ultracapacitors need to be charged with a high current, where a multi-module charging system is typically adopted. Although the classical decentralized control method can control the charging process of ultracapacitors, there exists a problem that the charging current may be imbalanced among charging modules. In this paper, a cooperative cascade charging method is proposed for the multi-module charging system to reduce the current imbalance among charging modules. First, the state-space averaging method and graph theory are used to model the multiple-module charging system. Second, an effective cooperative cascade control is proposed, where the outer voltage loop stabilizes the output voltage to the desired voltage and the inner current loop guarantees the current of each charger to follow the target current. The block diagram is used to establish the closed-loop model of the charging system. In order to evaluate the proposed charging method, a laboratory prototype was established. Compared with the classical decentralized method, this method can effectively suppress the current imbalance, which is proved by simulation and experimental results. Full article
(This article belongs to the Special Issue Advances in Electrical Power Conversion for Energy, Transportation and Industry Applications)
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14 pages, 4174 KiB  
Article
Power Capability Boundaries for an Inverter Providing Multiple Grid Support Services
by Markel Zubiaga, Alain Sanchez-Ruiz, Eneko Olea, Eneko Unamuno, Aitor Bilbao and Joseba Arza
Energies 2020, 13(17), 4314; https://doi.org/10.3390/en13174314 - 20 Aug 2020
Cited by 12 | Viewed by 2612
Abstract
It is getting more common every day to install inverters that offer several grid support services in parallel. As these services are provided, a simultaneous need arises to know the combined limit of the inverter for those services. In the present paper, operational [...] Read more.
It is getting more common every day to install inverters that offer several grid support services in parallel. As these services are provided, a simultaneous need arises to know the combined limit of the inverter for those services. In the present paper, operational limits are addressed based on a utility scale for a real inverter scenario with an energy storage system (ESS) (1.5 MW). The paper begins by explaining how active and reactive power limits are calculated, illustrating the PQ maps depending on the converter rated current and voltage. Then, the effect of the negative sequence injection, the phase shift of compensated harmonics and the transformer de-rating are introduced step-by-step. Finally, inverter limits for active filter applications are summarized, to finally estimate active and reactive power limits along with the harmonic current injection for some example cases. The results show that while the phase shift of the injected negative sequence has a significant effect in the available inverter current, this is not the case for the phase shift of injected harmonics. However, the amplitude of the injected negative sequence and harmonics will directly impact the power capabilities of the inverter and therefore, depending on the grid-side voltage, it might be interesting to design an output transformer with a different de-rating factor to increase the power capabilities. Full article
(This article belongs to the Special Issue Advances in Electrical Power Conversion for Energy, Transportation and Industry Applications)
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17 pages, 5456 KiB  
Article
Efficiency Optimization for All-Silicon Carbide (SiC) PWM Rectifier Considering the Impact of Gate-Source Voltage Interference
by Zhijun Li, Zuoxing Wang, Trillion Zheng, Hong Li, Bo Huang and Tiancong Shao
Energies 2020, 13(6), 1421; https://doi.org/10.3390/en13061421 - 18 Mar 2020
Viewed by 2890
Abstract
Compared with conventional silicon (Si)-based Pulse Width Modulation (PWM) rectifiers, PWM rectifiers based on silicon carbide (SiC) Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs) have significant technical advantages and broad application prospects in terms of efficiency and power density, inherited from the high-speed switching feature. However, [...] Read more.
Compared with conventional silicon (Si)-based Pulse Width Modulation (PWM) rectifiers, PWM rectifiers based on silicon carbide (SiC) Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs) have significant technical advantages and broad application prospects in terms of efficiency and power density, inherited from the high-speed switching feature. However, high-speed switching also induces gate-source voltage interference, which impacts the overall character of the conversion system. This paper considered the impact of gate-source voltage interference on loss, revealing an efficiency optimization for all-SiC PWM rectifiers. Firstly, this paper theoretically investigated the mechanism of improving the conversion system efficiency by using the 4-pin Kelvin packaged SiC MOSFETs. Then, based on the industrial product case study, loss distribution, using different package styles, was quantitatively analyzed. Finally, experiment test results verified the efficiency improvement of the PWM rectifier with the 4-pin Kelvin package SiC MOSFETs. Full article
(This article belongs to the Special Issue Advances in Electrical Power Conversion for Energy, Transportation and Industry Applications)
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