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Review of Advanced Power Electronics Solutions
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Review of Advanced Power Electronics Solutions

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F3: Power Electronics".

Deadline for manuscript submissions: closed (10 May 2023) | Viewed by 14160

Special Issue Editors

Dr. Oleksandr Husev

E-Mail Website
Guest Editor
Department of Mechatronics and Electrical Engineering, Tallinn University of Technology, EE-19086 Tallinn, Estonia
Interests: power electronics; renewable energy technologies; electrical power engineering; distributed generation; power quality; power systems analysis; power converters; inverters; energy conversion
Special Issues, Collections and Topics in MDPI journals
Dr. Carlos Roncero-Clemente

E-Mail Website
Guest Editor
Department of Electrical, Electronic and Control Engineering, University of Extremadura, 06006 Badajoz, Spain
Interests: DC-AC conversion; modulation techniques; renewables energies; storage energy systems; multilevel inverters; microgrids; power electronic control

Special Issue Information

Dear Colleagues,

One of the greatest problems that the world is facing today is environmental pollution and the depletion of natural resources. It forces the development of different new green technologies. Renewable energy integration in AC residential grids, along with storage systems, is a hot topic of power electronics today. At the same time, the new tendency consists of the limitation of the injection of power from renewable sources to the AC grid. New challenges crop up. The DC grid and wireless power transform are new trends in power electronics that have to solve existing problems.

This Special Issue is devoted to the state of art review of novel or recently proposed power electronics solutions devoted to the arising power electronics trends. The main focus will be on the review of emerging solutions, their feasibility study through the acquisition of new knowledge in areas related to power circuit design, the control and implementation of advanced materials and active and passive components, and comparative analysis.

Dr. Oleksandr Husev
Dr. Carlos Roncero-Clemente
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

  • Power electronics
  • DC systems
  • AC systems
  • Wireless power transfer

Published Papers (7 papers)

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Research

Jump to: Review

18 pages, 8454 KiB  
Article
Wireless Battery Chargers Operating at Multiple Switching Frequencies with Improved Performance
by Deniss Stepins, Aleksandrs Sokolovs, Janis Zakis and Ouseph Charles
Energies 2023, 16(9), 3734; https://doi.org/10.3390/en16093734 - 27 Apr 2023
Viewed by 1074
Abstract
The operation of wireless battery chargers at multiple switching frequencies may lead to a noticeable suppression of conducted and radiated electromagnetic interference (EMI) at the cost of decreased efficiency (mainly at lower load resistances) and increased peak and root mean square values of [...] Read more.
The operation of wireless battery chargers at multiple switching frequencies may lead to a noticeable suppression of conducted and radiated electromagnetic interference (EMI) at the cost of decreased efficiency (mainly at lower load resistances) and increased peak and root mean square values of currents of power components of the wireless battery charger. Moreover, the reduction in conducted EMI is only moderate (<8.3 dB). Therefore, a novel approach based on modified resonant circuits and a modified control technique to obtain better reduction in the conducted and radiated EMI without significantly compromising other performance characteristics of the wireless battery charger is proposed and validated by using simulations and experiments. It is shown in this paper that the wireless charger operating at multiple switching frequencies with the proposed approach for the performance improvement has a more effective implementation of the four-switching frequency spread-spectrum technique with better conducted and radiated EMI reduction at all load resistances, lower values of peak and RMS currents at all load resistances, and higher efficiency in constant current mode and in the beginning of constant voltage mode (at lower values of the load resistances) than that of the conventional wireless charger operating at multiple switching frequencies. Full article
(This article belongs to the Special Issue Review of Advanced Power Electronics Solutions)
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14 pages, 5568 KiB  
Article
Design and Analysis of a DC Solid-State Circuit Breaker for Residential Energy Router Application
by Saeed Rahimpour, Oleksandr Husev and Dmitri Vinnikov
Energies 2022, 15(24), 9434; https://doi.org/10.3390/en15249434 - 13 Dec 2022
Cited by 6 | Viewed by 1704
Abstract
Energy routers act as an interface between the distribution network and electrical facilities, which meet the requirements of clean energy substitution and achieve the energy sharing and information transmission in the energy network. However, the protection of the dc load side of residential [...] Read more.
Energy routers act as an interface between the distribution network and electrical facilities, which meet the requirements of clean energy substitution and achieve the energy sharing and information transmission in the energy network. However, the protection of the dc load side of residential energy routers including interruption and isolation of short-circuit fault currents is vital for discussion. Since the traditional mechanical and hybrid circuit breakers for dc fault protection have the drawback of slow operation, a solid-state circuit breaker (SSCB) is an optimal solution for fast dc fault interruption. In this paper, a dc SSCB is proposed that uses an RCD + MOV snubber circuit, which is considered the best and most complete circuit used in common SSCBs. There are two main contributions in this paper: First, a dc SSCB is designed, which isolates both positive and negative terminals of a circuit and its working principle and operating modes along with the formulas for calculation of crucial time intervals, voltages, and currents along with the design procedure are provided. Second, a soft turn-on auxiliary is designed to prevent a high current surge caused by the capacitance difference between the source and the load. The experimental results demonstrate the proper performance of the topology and the validity of the findings. Full article
(This article belongs to the Special Issue Review of Advanced Power Electronics Solutions)
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14 pages, 4606 KiB  
Article
Grid-Forming Operation of Energy-Router Based on Model Predictive Control with Improved Dynamic Performance
by Mahdieh Najafzadeh, Natalia Strzelecka, Oleksandr Husev, Indrek Roasto, Kawsar Nassereddine, Dmitri Vinnikov and Ryszard Strzelecki
Energies 2022, 15(11), 4010; https://doi.org/10.3390/en15114010 - 30 May 2022
Cited by 6 | Viewed by 1886
Abstract
The focus of this study is on the grid-forming operation of the Energy Router (ER) based on Model Predictive Control (MPC). ER is regarded as a key component of microgrids. It is a converter that interfaces the microgrid (s) with the utility grid. [...] Read more.
The focus of this study is on the grid-forming operation of the Energy Router (ER) based on Model Predictive Control (MPC). ER is regarded as a key component of microgrids. It is a converter that interfaces the microgrid (s) with the utility grid. The ER has a multiport structure and bidirectional energy flow control. The ER concept can be implemented in Nearly Zero-Energy Buildings (NZEB) to provide flexible energy control. A concept is proposed where the ER works as a single grid-forming converter. The challenge is to keep the predefined reference voltage and frequency inside the NZEB in all possible modes, including the idle operation mode, current sources, and nonlinear load control. To gain stability and output voltage quality, the MPC is proposed. The design of the modified MPC algorithm with improved dynamics performance is explained. PLECS software is utilized to verify the proposed algorithm. The results demonstrate the suitable performance of the proposed control method in terms of total harmonic distortion of the output voltage. The influence of weighting coefficiencies is evaluated, showing the higher impact of the capacitor filter voltage on lowering the total harmonics distortion of the output voltage. Finally, the capability of the control system toward step change in the reference value is evaluated. Full article
(This article belongs to the Special Issue Review of Advanced Power Electronics Solutions)
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13 pages, 5215 KiB  
Article
The Single-Phase Voltage and Power Control Algorithm of a 4-Leg Type CVCF Inverter for an Off-Grid Micro-Grid System
by Byeong-Gill Han, Ji-Myung Kim, Kyung-Hwa Kim, Jian Shen and Dae-Seok Rho
Energies 2022, 15(9), 3353; https://doi.org/10.3390/en15093353 - 5 May 2022
Cited by 1 | Viewed by 1416
Abstract
In general, severe load imbalances in small AC micro-grid systems can degrade their operational performance and their maintenance. This is because the unbalanced load in the micro-grid affects the energy flow and the voltage regulation functions of each phase. In order to solve [...] Read more.
In general, severe load imbalances in small AC micro-grid systems can degrade their operational performance and their maintenance. This is because the unbalanced load in the micro-grid affects the energy flow and the voltage regulation functions of each phase. In order to solve the voltage imbalance problem, several algorithms for the 3-phase 4-leg CVCF inverter have been proposed, but the control algorithms are not enough to operate the 4-leg CVCF inverter in a stable manner. Therefore, this paper proposes a single-phase voltage and power control algorithm for the 3-phase 4-leg CVCF inverter based on a dq control in order to improve the voltage imbalance problem caused by a severely unbalanced load, where the single phase voltage control algorithm is composed of an αβ-dq and a dq-αβ transformer, a voltage and a current controller, and an off-set controller and a PWM, and the single-phase power control algorithm is also composed of an αβ-dq and a dq-αβ transformer, an active/reactive power and a current controller, and an off-set controller and a PWM. Additionally, this paper performs modeling of the single-phase voltage and the power controller for a 4-leg CVCF inverter using the Matlab/Simulink S/W. From the simulation results, it is confirmed that the transient stability of the proposed single voltage control algorithm can be improved compared to the conventional control algorithm, and voltage control can also be maintained in a stable manner under extremely unbalanced conditions. Further, it is confirmed that 3-phase currents of the proposed single-phase power control algorithm are controlled in a stable manner under extremely unbalanced conditions. Full article
(This article belongs to the Special Issue Review of Advanced Power Electronics Solutions)
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15 pages, 4133 KiB  
Article
Optimal Rotating Receiver Angles Estimation for Multicoil Dynamic Wireless Power Transfer
by Bohdan Pakhaliuk, Viktor Shevchenko, Jan Mućko, Oleksandr Husev, Mykola Lukianov, Piotr Kołodziejek, Natalia Strzelecka and Ryszard Strzelecki
Energies 2021, 14(19), 6144; https://doi.org/10.3390/en14196144 - 27 Sep 2021
Cited by 3 | Viewed by 1541
Abstract
This study proposed an approach to dynamic wireless charging that uses a rotating receiver coil. Our simulation study focused on the verification of a novel way of increasing the coupling coefficient and power transfer stability by following the flux of the transmitting coils. [...] Read more.
This study proposed an approach to dynamic wireless charging that uses a rotating receiver coil. Our simulation study focused on the verification of a novel way of increasing the coupling coefficient and power transfer stability by following the flux of the transmitting coils. To obtain the highest possible coupling by means of the FEM analysis, we studied the optimization of the trajectory of the angular velocity of the rotating receiver. The coupling coefficient trajectories that were obtained were simulated by means of the state space model with three transmitters. Our comprehensive analysis showed that the proposed approach of wireless power transmission enabled a 40% increase in the usage of track space. Full article
(This article belongs to the Special Issue Review of Advanced Power Electronics Solutions)
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21 pages, 6675 KiB  
Article
Closed-Loop Control System Design for Wireless Charging of Low-Voltage EV Batteries with Time-Delay Constraints
by Viktor Shevchenko, Bohdan Pakhaliuk, Janis Zakis, Oleksandr Veligorskyi, Jaroslaw Luszcz, Oleksandr Husev, Oleksandr Lytvyn and Oleksandr Matiushkin
Energies 2021, 14(13), 3934; https://doi.org/10.3390/en14133934 - 30 Jun 2021
Cited by 4 | Viewed by 2712
Abstract
This paper presents an inductive power transfer system on the basis of a double single-phase three-level T-type inverter and two split transmitting coils for constant current and constant voltage wireless charging of low-voltage light electric vehicle batteries with closed-loop control, considering time-delay communication [...] Read more.
This paper presents an inductive power transfer system on the basis of a double single-phase three-level T-type inverter and two split transmitting coils for constant current and constant voltage wireless charging of low-voltage light electric vehicle batteries with closed-loop control, considering time-delay communication constraints. An optimal control structure and a modified control strategy were chosen and implemented to the wireless power transfer system as a result of a review and analysis of existing solutions. The control system analysis and adjustment of the coefficients of the regulator using Laplace transform were performed. Our study addressed the behavior of the control system with different time delays as well as the dynamic response of the system. The detecting algorithm of a secondary coil was proposed, which ensured efficient system operation and increased the functionality, safety and usability of the device. The efficiency of energy transfer of 90% was reached at the transmitted power of 110 W, which is at the level of existing solutions considered in the article and opens the way to the commercialization of the proposed solution. Therefore, the feasibility of using a nonclassical multilevel inverter, together with split transmitting coils for wireless charging was confirmed. Full article
(This article belongs to the Special Issue Review of Advanced Power Electronics Solutions)
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Review

Jump to: Research

16 pages, 6751 KiB  
Review
A Review of Hybrid Converter Topologies
by Hossein Afshari, Oleksandr Husev, Oleksandr Matiushkin and Dmitri Vinnikov
Energies 2022, 15(24), 9341; https://doi.org/10.3390/en15249341 - 9 Dec 2022
Cited by 5 | Viewed by 2867
Abstract
There is a growing interest in solar energy systems with storage battery assistance. There is a corresponding growing interest in hybrid converters. This paper provides a comprehensive review of hybrid converter topologies. The concept of a hybrid inverter is introduced and then classified [...] Read more.
There is a growing interest in solar energy systems with storage battery assistance. There is a corresponding growing interest in hybrid converters. This paper provides a comprehensive review of hybrid converter topologies. The concept of a hybrid inverter is introduced and then classified into isolated and non-isolated structures based on using a galvanic transformer. The classification and description of each type are presented based on the features and applications. Furthermore, the most popular commercial solutions are investigated in terms of their simplicity, flexibility, efficiency, and battery technology. The summarizing features are presented through tables, and future trends for researchers to follow to develop efficient hybrid converters are discussed. This review paper is intended as a convenient reference for hybrid converter users. Full article
(This article belongs to the Special Issue Review of Advanced Power Electronics Solutions)
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