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Machines
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Advances in Power Electronic Converters
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Advances in Power Electronic Converters

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Electrical Machines and Drives".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 4630

Special Issue Editor

Prof. Dr. Gerardo Vazquez-Guzman

E-Mail Website
Guest Editor
Electronic Engineering Department, Tecnológico Nacional de México/ITS de Irapuato, Irapuato 36821, Guanajuato, Mexico
Interests: analysis and design of power electronics converters; renewable energy systems and grid connected converters
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nowadays power electronic systems are widely spread all around the world with multiple applications such as, centralized generation, energy storage, distributed generation, electric vehicles, renewable power generation systems, illumination systems, hydrokinetic converters, traction converters, power supply systems, among others. Power converters are aimed to perform energy conversion with maximum efficiency, high power density, low cost, high power quality and high reliability in order to maximize the resource utilization. Therefore, power converters are continuously studied to improve their performance by means of the modification of the structure, control strategies modifications, changes of the pulse width modulation strategies, implementation using new technologies of power semiconductors, improvement on the reliability for power converters, among others.

Then, the present special issue intends to promote the generation of new knowledge devoted to the development of power electronic converters. Authors are encourage to submit original contributions related to advances on power electronic converters.

Prof. Dr. Gerardo Vazquez-Guzman
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. Machines 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 2400 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

  • pulse with modulation strategies
  • DC-DC power converter topologies
  • CD-AC converters topologies
  • control systems
  • energy storage systems
  • conversion systems for grid integration
  • reliability
  • renewable power systems
  • efficiency

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Published Papers (3 papers)

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Research

22 pages, 15935 KiB  
Article
Model Predictive Virtual Flux Control Method for Low Switching Loss Performance in Three-Phase AC/DC Pulse-width-Modulated Converters
by Minh Hoang Nguyen, Sangshin Kwak and Seungdeog Choi
Machines 2024, 12(1), 66; https://doi.org/10.3390/machines12010066 - 16 Jan 2024
Cited by 1 | Viewed by 1033
Abstract
Three-phase AC/DC pulse-width-modulated (PWM) converters have been widely employed in various renewable energy systems and industrial applications, which require a high-efficiency power converter operation. This article proposes a technique to reduce switching loss in AC/DC converters by integrating a voltage vector preselection strategy [...] Read more.
Three-phase AC/DC pulse-width-modulated (PWM) converters have been widely employed in various renewable energy systems and industrial applications, which require a high-efficiency power converter operation. This article proposes a technique to reduce switching loss in AC/DC converters by integrating a voltage vector preselection strategy to model predictive virtual flux control. The voltage vector preselection strategy preselects available voltage vectors corresponding to switching states that lead to minimum switching loss in the phase leg, which conducts the highest current. By using preselected voltage vectors, clamping intervals are generated at every fundamental period to maintain the present switching states of the power switches, resulting in the reduction in switching loss. Additionally, by using virtual flux control, the proposed approach can effectively be used under both ideal and distorted source voltage conditions. The proposed method is compared with the conventional model predictive current control and the conventional model predictive virtual flux control. Both a simulation and experiment are performed to validate the correctness and effectiveness of the proposed method, which has been found to decrease the switching loss of an AC/DC converter by up to 15% compared to conventional control schemes at a negligible increase in the input current total harmonic distortion and DC output voltage ripple. Full article
(This article belongs to the Special Issue Advances in Power Electronic Converters)
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18 pages, 11069 KiB  
Article
Optimization of the Voltage Total Harmonic Distortion in Multilevel Inverters by Using the Taguchi Method
by Adolfo R. Lopez, José M. Sosa, Cristian Sámano, Susana Estefany De León-Aldaco, Jesus Aguayo-Alquicira and Oswaldo López-Santos
Machines 2024, 12(1), 7; https://doi.org/10.3390/machines12010007 - 22 Dec 2023
Viewed by 1436
Abstract
A critical reduction in the total harmonic distortion in the output voltage of multilevel inverters can be obtained with an appropriate selection of the angles to switch the power semiconductors at low frequency. Among the methods used to obtain the required sequence of [...] Read more.
A critical reduction in the total harmonic distortion in the output voltage of multilevel inverters can be obtained with an appropriate selection of the angles to switch the power semiconductors at low frequency. Among the methods used to obtain the required sequence of angles, it is possible to recognize both standard and optimized methods, like the Newton–Raphson method or the genetic algorithm, to mention a few. However, implementing the genetic algorithm implies using several configuration parameters, so it is difficult to know if the best option was chosen. This paper implements the Taguchi design of experiments, the Taguchi method, to obtain the appropriate switching angles for an multilevel inverter producing an output voltage of five and seven levels. Experimental results obtained from a laboratory prototype using the computed angles in the MATLAB GA solver demonstrate the superiority of the proposed method. Full article
(This article belongs to the Special Issue Advances in Power Electronic Converters)
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20 pages, 2208 KiB  
Article
Analysis and Improved Behavior of a Single-Phase Transformerless PV Inverter
by Panfilo R. Martinez-Rodriguez, Gerardo Vazquez-Guzman, Gerardo O. Perez-Bustos, Jose M. Sosa-Zuñiga, Dalyndha Aztatzi-Pluma, Adolfo R. Lopez-Nuñez and Christopher J. Rodriguez-Cortes
Machines 2023, 11(12), 1091; https://doi.org/10.3390/machines11121091 - 16 Dec 2023
Viewed by 1500
Abstract
Transformerless inverters have an important role in the electrical energy market. The high-efficiency and reliable inverter concept is one of the most widely used inverters in single-phase photovoltaic systems because of its high efficiency, low cost, and reduced leakage ground current. However, the [...] Read more.
Transformerless inverters have an important role in the electrical energy market. The high-efficiency and reliable inverter concept is one of the most widely used inverters in single-phase photovoltaic systems because of its high efficiency, low cost, and reduced leakage ground current. However, the leakage ground current behavior depends on the power and weather conditions, which can increase the parasitic capacitance value, thus producing an increase in the leakage ground current magnitude. In this paper, it is proposed to add a passive inductive–capacitive output filter to the inverter structure in order to reduce the dependency of the leakage ground current on the system power and weather conditions. The inductive–capacitive output filter is designed in such a way that it can provide a low impedance path for the leakage ground current, different from the ground path. The proposed system was evaluated both through simulations and experimentally in a 1 kW laboratory prototype. Full article
(This article belongs to the Special Issue Advances in Power Electronic Converters)
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