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Advanced Application of Power Electronics in Power Systems
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Advanced Application of Power Electronics in Power Systems

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

Deadline for manuscript submissions: closed (23 January 2024) | Viewed by 7550

Special Issue Editors

Dr. Giovanni Migliazza

E-Mail Website
Guest Editor
Department of Science and Methods for Engineering, University of Modena and Reggio Emilia, 42121 Reggio Emilia, Italy
Interests: power converters and electric drives
Prof. Dr. Emilio Lorenzani

E-Mail Website
Guest Editor
Department of Science and Methods for Engineering, University of Modena and Reggio Emilia, 42121 Reggio Emilia, Italy
Interests: power converters for renewable energies sources; high performance electric drives
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Giampaolo Buticchi

E-Mail Website
Guest Editor
Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, Department of Electrical and Electronic Engineering, University of Nottingham, Ningbo 315104, China
Interests: DC distribution systems and power electronics for the more electric aircraft; high performance electric drives
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Power electronics systems have been increasingly adopted in all sectors. Due to the development of renewable energy systems, power supplies, telecommunication systems, electric vehicles, aircraft electrification, etc., power electronics have attracted interest from the industrial and scientific communities. Among the requirements, we find high-efficiency, low-cost, high-reliability, high-frequency operations, compact size, etc.     

The Special Issue bundles original analysis and solutions on the recent advances in the Power electronics in Transportation, Renewable Energy and Industrial equipment.

The topics of interest for publication include, but are not limited to:

  • Power Converters and their Control Strategies;
  • Electric Drives and their Control Strategies;
  • Ground leakage current mitigation in Motor drive applications and Renewable Energy systems;
  • Multiphase Drives and their Control Strategies;
  • Reconfigurable Electric Drives;
  • Wireless Power Transfer;
  • DC distribution systems for the More Electric Aircraft.

Dr. Giovanni Migliazza
Prof. Dr. Emilio Lorenzani
Prof. Dr. Giampaolo Buticchi
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
  • control scheme
  • motor drive
  • renewable energy
  • reconfigurable systems
  • multi-drive–multi-phase systems
  • wireless power transfer

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Published Papers (4 papers)

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Research

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19 pages, 6781 KiB  
Article
Stability Enhancement Method of Standalone Modular Multilevel Converters Based on Impedance Reshaping
by Youzhuo Zheng, Long Hua, Yekui Yang, Chun Li, Chaoyi Luo, Zihong Song, Xingwu Yang and Haibo Feng
Energies 2024, 17(4), 895; https://doi.org/10.3390/en17040895 - 14 Feb 2024
Viewed by 855
Abstract
Modular multilevel converters (MMCs) are susceptible to subsynchronous oscillations (SSOs) caused by impedance interactions in the power line. Current research into the stability of MMCs focuses mainly on voltage feed-forward control, while the effect of current feed-forward control is neglected. This paper proposes [...] Read more.
Modular multilevel converters (MMCs) are susceptible to subsynchronous oscillations (SSOs) caused by impedance interactions in the power line. Current research into the stability of MMCs focuses mainly on voltage feed-forward control, while the effect of current feed-forward control is neglected. This paper proposes a current feed-forward compensation method based on impedance reshaping for standalone MMCs. Initially, an impedance model was developed to identify the stability risks caused by the interaction between the MMC and power line impedance. The proposed method feeds the current compensation signal into the modulation circuit, thereby improving the control signal and suppressing the impedance interaction between the MMC and the power line. The analysis of the harmonic state space (HSS) method verifies that the proposed approach effectively reduces the negative damping region in the frequency band where the SSO is located. Additionally, the impedance frequency scanning method confirms the accuracy of impedance modeling. Using the MATLAB/Simulink platform and StarSim HIL hardware-in-the-loop experimental platform, the SSO phenomenon of the MMC is simulated, and the results show that the proposed method can effectively suppress harmonic currents during SSO, which verifies the accuracy of the stability analysis and the feasibility of the proposed method. Full article
(This article belongs to the Special Issue Advanced Application of Power Electronics in Power Systems)
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14 pages, 3069 KiB  
Article
On the Problems of Current Limitations in Networks Based on Power Semiconductor Devices
by Evgeniy Safonov, Vladimir Frolov, Ruslan Zhiligotov and Yuri Petrenya
Energies 2023, 16(16), 5905; https://doi.org/10.3390/en16165905 - 10 Aug 2023
Cited by 1 | Viewed by 1045
Abstract
The presence of high short-circuit currents (200–300 kA) in autonomous and generator power systems of low and medium voltage classes, causing a decrease in the switching resource of switching facilities, necessitates the search for ways of limiting the current. The paper proposes a [...] Read more.
The presence of high short-circuit currents (200–300 kA) in autonomous and generator power systems of low and medium voltage classes, causing a decrease in the switching resource of switching facilities, necessitates the search for ways of limiting the current. The paper proposes a solution to this problem: a semiconductor current-limiting device based on a DC chopper, a DC-to-DC converter. This devices’ features are its low dimensions and losses during typical operation. Semiconductor elements can be arranged quite compactly due to the lack of radiators for cooling, since the cooling process—taking into account the short duration of the current limitation process—is not efficient. The choice of semiconductor devices takes into account the short duration of the current load, as a result of which the temperature of the semiconductor structure does not exceed its permissible value. This paper presents a method for calculating the parameters of semiconductor devices, taking into account the current load as well as adjusting the magnitude of current limitation to a value that can be disconnected by switching devices. The short-term mode of operation of the power semiconductor device with current regulated by the frequency and duty cycle of its operation makes it possible to facilitate the required current limitation in the circuit for the subsequent fault clearance with a typical electrical device. The problem of overcurrent of one of the elements of the limiter is noted, which requires special attention to ensure that the semiconductor device is not overheated. This paper also presents the principle of current limitation, summarizes the results of experimental studies, and analyzes the presented capabilities of a semiconductor current limiter. Full article
(This article belongs to the Special Issue Advanced Application of Power Electronics in Power Systems)
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23 pages, 8600 KiB  
Article
Analysis and Design of a New High Voltage Gain Interleaved DC–DC Converter with Three-Winding Coupled Inductors for Renewable Energy Systems
by Shin-Ju Chen, Sung-Pei Yang, Chao-Ming Huang and Ping-Sheng Huang
Energies 2023, 16(9), 3958; https://doi.org/10.3390/en16093958 - 8 May 2023
Cited by 8 | Viewed by 2016
Abstract
In this article, a new non-isolated interleaved DC–DC converter is proposed to provide a high voltage conversion ratio in renewable energy systems. The converter configuration is composed of a two-phase interleaved boost converter integrating a voltage-lift capacitor and three-winding coupled inductor-based voltage multiplier [...] Read more.
In this article, a new non-isolated interleaved DC–DC converter is proposed to provide a high voltage conversion ratio in renewable energy systems. The converter configuration is composed of a two-phase interleaved boost converter integrating a voltage-lift capacitor and three-winding coupled inductor-based voltage multiplier modules to achieve high step-up voltage conversion and reduce voltage stresses on the semiconductors (switches and diodes). The converter can achieve a high voltage conversion ratio when working at a proper duty ratio. The voltage stresses on the switches are significantly lower than the output voltage, which enables engineers to adopt low-voltage-rating MOSFETs with low on-state resistance. The switches can turn on under zero-current switching (ZCS) conditions because of the leakage inductor series reducing switching losses. Some diodes can naturally turn off under ZCS conditions to alleviate the reverse–recovery issue and to reduce reverse–recovery losses. The input current has small ripples due to the interleaved operation. The leakage inductor energy is recycled and voltage spikes on the switches are avoided. The proposed converter is suitable for applications in which high voltage gain, high efficiency and high power are required. The principle of operation, steady-state analysis and design considerations of the proposed converter are described in detail. In addition, a closed-loop controller is designed to reduce the effect of input voltage fluctuation and load change on the output voltage. Finally, a 1000 W laboratory prototype is built and tested. The theoretical analysis and the performance of the proposed converter were validated by the experimental results. Full article
(This article belongs to the Special Issue Advanced Application of Power Electronics in Power Systems)
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Review

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12 pages, 665 KiB  
Review
Common Architectures and Devices for Current Source Inverter in Motor-Drive Applications: A Comprehensive Review
by Giovanni Luca Fidone, Giovanni Migliazza, Emilio Carfagna, Dario Benatti, Fabio Immovilli, Giampaolo Buticchi and Emilio Lorenzani
Energies 2023, 16(15), 5645; https://doi.org/10.3390/en16155645 - 27 Jul 2023
Cited by 5 | Viewed by 3022
Abstract
When compared to the much more common voltage-source inverter (VSI), the current-source inverter (CSI) is rarely used for variable speed drive applications, due to its disadvantages: the need of a constant DC-link current, typically realized with a front-end converter, and the need for [...] Read more.
When compared to the much more common voltage-source inverter (VSI), the current-source inverter (CSI) is rarely used for variable speed drive applications, due to its disadvantages: the need of a constant DC-link current, typically realized with a front-end converter, and the need for reverse-voltage blocking (RVB) devices, typically implemented with in-series diodes. This limits the overall efficiency of the architecture. This paper investigates latest progress of the CSI research, with the aim of demonstrating why CSI could come back in the near future. Different architectures based on modern wide-bandgap (WBG) switches are analyzed, with an emphasis on why CSI can be advantageous compared to VSI. Full article
(This article belongs to the Special Issue Advanced Application of Power Electronics in Power Systems)
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