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Micromachines
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Power Electronics Systems
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Power Electronics Systems

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "E：Engineering and Technology".

Deadline for manuscript submissions: closed (15 April 2023) | Viewed by 5969

Special Issue Editor

Prof. Dr. Panfilo R. Martinez-Rodriguez

E-Mail Website
Guest Editor
School of Sciences, Universidad Autonoma de San Luis Potosi (UASLP), San Luis Potosi 78295, SLP, Mexico
Interests: power quality; renewable energy systems; modeling, analysis, and control design of power electronic systems

Special Issue Information

Dear Colleagues,

As power electronics systems become a solid solution for power conversion and energy conditioning in the transition to the intelligent, sustainable, and environmentally friendly use of energy, the challenges to be faced grow as well. In several application fields such as renewable electric power generation, energy harvesting, energy storage systems, electric vehicles, smart grids, and electromagnetic compatibility, among others, there are challenges that need to be tackled. To meet the challenges in these areas, power electronics systems have emerged as an efficient, viable, reliable, and powerful solution for the conversion and efficient conditioning of electrical energy. These applications require power converters to interface between the main generator and the load or to interconnect power sources to transfer power between them, as occurs in renewable power generation systems, energy storage systems, or smarts grids. Therefore, the design of power converters, the control design of power electronics systems, and the novel applications of power converter applications have emerged to meet these new challenges.

Therefore, this Special Issue aims to promote the high-quality development of knowledge in power electronics. Hence, we kindly invite you to submit original works on the topics related to this area. This Special Issue includes but is not limited to the development of the following topics of interest:

  • AC-DC power conversion: control, design, and analysis
  • DC-DC power conversion: control, design, and analysis
  • AC-AC power conversion: control, design, and analysis
  • DC-AC power conversion: control, design, and analysis

in applications related to:

  • Solid-state transformers
  • Smart grids
  • Grid-connected converters
  • Virtual inertia systems through power electronics
  • Control design for power electronics systems
  • Power converters for renewable energy systems in smart grids
  • Advanced control techniques applied on smart grids and renewable energy systems
  • Integration of renewable energies sources
  • Energy storage systems
  • Power converters for solar energy
  • Power converters for small wind turbines
  • Grid integration of wind farms
  • PWM techniques for power converters
  • Space vector modulation techniques for power converters
  • Efficient grid-connected converters
  • Efficient power converters suitable for MPPT
  • Battery management systems
  • Fault diagnostics in power converters for renewable energy systems
  • Power converters for electric vehicles
  • Motor drives. 

Prof. Dr. Panfilo R. Martinez-Rodriguez
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. Micromachines 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 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
  • smart grid
  • microgrid
  • solid-state transformers
  • power quality
  • electric vehicles
  • power electronics control systems
  • energy storage systems
  • motor drives

Published Papers (4 papers)

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Research

22 pages, 8704 KiB  
Article
Switching Regulator Based on a Non-Inverting Step-Down/Up DC–DC Converter for Lithium-Ion Battery Applications
by Juan Antonio Villanueva-Loredo, Ma Guadalupe Ortiz-Lopez, Jesus Leyva-Ramos and Luis Humberto Diaz-Saldierna
Micromachines 2023, 14(6), 1144; https://doi.org/10.3390/mi14061144 - 29 May 2023
Cited by 1 | Viewed by 1309
Abstract
A regulator based on a converter with step-down/up characteristics is discussed in this paper, which is suitable for processing energy from a lithium-ion battery pack, where the voltage fluctuates from above or below the nominal value. However, this regulator can also be used [...] Read more.
A regulator based on a converter with step-down/up characteristics is discussed in this paper, which is suitable for processing energy from a lithium-ion battery pack, where the voltage fluctuates from above or below the nominal value. However, this regulator can also be used for applications such as unregulated line rectifiers and renewable energy sources, among others. The converter consists of a non-cascaded interconnection of boost and buck–boost converters such that part of the input energy is transferred directly to the output without reprocessing. Furthermore, it has a non-pulsating input current and a non-inverting output voltage, making it easier to feed the power to other devices. For control purposes, non-linear and linear converter models are derived. The transfer functions of the linear model are used to implement the regulator using a current-mode control scheme. Finally, experimental results for a nominal output voltage of 48 V at 500 W are obtained for the converter in open-loop and closed-loop tests. Full article
(This article belongs to the Special Issue Power Electronics Systems)
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20 pages, 3383 KiB  
Article
Passivity-Based Control for Output Voltage Regulation in a Fuel Cell/Boost Converter System
by Carlo A. Beltrán, Luis H. Diaz-Saldierna, Diego Langarica-Cordoba and Panfilo R. Martinez-Rodriguez
Micromachines 2023, 14(1), 187; https://doi.org/10.3390/mi14010187 - 11 Jan 2023
Cited by 5 | Viewed by 1419
Abstract
In this paper, a passivity-based control (PBC) scheme for output voltage regulation in a fuel-cell/boost converter system is designed and validated through real-time numerical results. The proposed control scheme is designed as a current-mode control (CMC) scheme with an outer loop (voltage) for [...] Read more.
In this paper, a passivity-based control (PBC) scheme for output voltage regulation in a fuel-cell/boost converter system is designed and validated through real-time numerical results. The proposed control scheme is designed as a current-mode control (CMC) scheme with an outer loop (voltage) for voltage regulation and an inner loop (current) for current reference tracking. The inner loop’s design considers the Euler–Lagrange (E-L) formulation to implement a standard PBC and the outer loop is implemented through a standard PI controller. Furthermore, an adaptive law based on immersion and invariance (I&I) theory is designed to enhance the closed-loop system behavior through asymptotic approximation of uncertain parameters such as load and inductor parasitic resistance. The closed-loop system is tested under two scenarios using real-time simulations, where precision and robustness are shown with respect to variations in the fuel cell voltage, load, and output voltage reference. Full article
(This article belongs to the Special Issue Power Electronics Systems)
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14 pages, 2881 KiB  
Article
Comparative Analysis of Modulation Techniques on the Losses and Thermal Limits of Uninterruptible Power Supply Systems
by Edemar O. Prado, Pedro C. Bolsi, Hamiltom C. Sartori and José R. Pinheiro
Micromachines 2022, 13(10), 1708; https://doi.org/10.3390/mi13101708 - 11 Oct 2022
Cited by 7 | Viewed by 1462
Abstract
This paper presents a comparative analysis of electrical losses and subsequent thermal limits of the inverter of UPSs for small office and home office (SOHO) applications. For this, three PWM modulation techniques applied to the full-bridge converter are considered, with power levels of [...] Read more.
This paper presents a comparative analysis of electrical losses and subsequent thermal limits of the inverter of UPSs for small office and home office (SOHO) applications. For this, three PWM modulation techniques applied to the full-bridge converter are considered, with power levels of 100–1000 W and switching frequencies of 30–120 kHz. To validate the electrical and thermal models, a dSapce MicroLabBox equipment was used to implement modulation techniques on a commercial 1000 W UPS, and a Keysight DAQ970A data logger was used for temperature measurements. As a result, the MOSFET temperatures and losses are obtained for the three modulation techniques evaluated, indicating the best scenario for use and its influence on the UPS autonomy time. Full article
(This article belongs to the Special Issue Power Electronics Systems)
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13 pages, 4056 KiB  
Article
Investigation of an Output Voltage Harmonic Suppression Strategy of a Power Quality Control Device for the High-End Manufacturing Industry
by Chengkuan Wan, Kai Li, Lin Xu, Chao Xiong, Lingang Wang and Hao Tang
Micromachines 2022, 13(10), 1646; https://doi.org/10.3390/mi13101646 - 30 Sep 2022
Cited by 1 | Viewed by 1055
Abstract
Due to the influence of nonlinear loads, power quality control devices under the traditional double closed-loop control strategy suffer from a large output voltage harmonic distortion rate and a slow harmonic suppression response and cannot meet the high-quality power supply requirements of high-end [...] Read more.
Due to the influence of nonlinear loads, power quality control devices under the traditional double closed-loop control strategy suffer from a large output voltage harmonic distortion rate and a slow harmonic suppression response and cannot meet the high-quality power supply requirements of high-end manufacturing. A compound control strategy based on voltage feedback and current feed-forward is proposed to solve the voltage quality problem under a nonlinear load. Firstly, based on the mathematical model of power quality control device, the working principle and voltage current coupling relationship are analyzed. Then, an output voltage compound control strategy based on feed-forward and feedback is proposed, and the harmonic suppression mechanisms are deduced and analyzed. Finally, simulation and experimental results are presented to show that, compared with the traditional double closed-loop control strategy, the harmonic suppression effect of the composite control strategy proposed in this paper can be increased by 2.2%, and the response time is decreased to 100 ms. Full article
(This article belongs to the Special Issue Power Electronics Systems)
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