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Energies
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Modeling, Control, and Optimization of Power Electronic Converters
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Modeling, Control, and Optimization of Power Electronic Converters

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

Deadline for manuscript submissions: closed (22 November 2023) | Viewed by 9379

Special Issue Editors

Dr. Jonathan C. Mayo-Maldonado

E-Mail Website
Guest Editor
Department of Electronic and Electrical Engineering, The University of Sheffield, Sheffield S102TN, UK
Interests: behavioral system theory and dissipativity (higher-order modeling and control); nonlinear control design; modeling and control of power converters; power converter topology design; smart grid technologies; micro-synchrophasors (micro PMU); energy storage (battery modeling, balancing, state estimation and grid support applications)
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Julio Cesar Rosas Caro

E-Mail Website
Guest Editor
Faculty of Engineering, Universidad Panamericana Sede Guadalajara, Zapopan CP 45010, Mexico
Interests: power electronics; DC-DC converters; optimization of power electronics systems; modelling and control of power converters
Special Issues, Collections and Topics in MDPI journals
Dr. Jesús Elias Valdez Resendiz

E-Mail Website
Guest Editor
School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64700, Mexico
Interests: energy conversion systems; power converter topologies; electric and hybrid vehicles; energy management strategies

Special Issue Information

Dear Colleagues,

Power electronics converters are more important than ever due to their roles in renewable energy conversion systems, hybrid and electric vehicles and aircraft, and their continuous advancements in the electronics industry and appliances. This is an active research field; new methods of increasing power density and efficiency, reducing cost, and including new and advanced functions are being studied. The continuous development of power converters means that devices with reduced costs, sizes, and weights are being produced. To produce these types of devices, the modeling, control, and optimization of power electronic converters are essential topics.

This Special Issue aims to present and disseminate recent advancements in the modeling, control, and optimization of power converters and related technologies.

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

  • The modeling of power converters;
  • The control of power converters;
  • New theories of power converters control;
  • The optimization of the operation and design of power converters;
  • The heuristic and metaheuristic optimization of power converters;
  • New topologies and technologies of power electronics;
  • Hybrid topologies of power converters with diode-capacitor multipliers;
  • DC-DC converters;
  • DC-AC inverters.

Dr. Jonathan C. Mayo-Maldonado
Prof. Dr. Julio Cesar Rosas Caro
Dr. Jesús Elias Valdez Resendiz
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

  • PWM converters
  • power electronics
  • DC-DC converters
  • DC-AC converters
  • control or power converters
  • optimization
  • metaheuristic optimization
  • numerical optimization

Published Papers (6 papers)

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Research

31 pages, 7922 KiB  
Article
A Unified Analysis of DC–DC Converters’ Current Stress
by Michael Njoroge Gitau, Lebogang Masike and Grain P. Adams
Energies 2023, 16(8), 3370; https://doi.org/10.3390/en16083370 - 11 Apr 2023
Cited by 2 | Viewed by 1346
Abstract
There is always a need to analyze current signals generated by various DC–DC converters. For example, to determine the current stress experienced by semiconductor devices and to evaluate active and reactive power consumption in converters. The study demonstrates that the shape of a [...] Read more.
There is always a need to analyze current signals generated by various DC–DC converters. For example, to determine the current stress experienced by semiconductor devices and to evaluate active and reactive power consumption in converters. The study demonstrates that the shape of a current signal dictates the analytical expressions required to determine the average and RMS values of a signal as well as the RMS value of the ripple of that signal. The study also shows that current signals can be treated as composite waveforms comprising various combinations of trapezoidal, rectangular, and triangular pulses. The current literature lacks a unified approach to analyze current stresses in DC–DC converters. This study will propose a unified and generalized analytical technique that is applicable to any type of DC waveform that can be treated as a composite waveform made up of a combination of triangular, rectangular, or trapezoidal sections or sub-intervals. Furthermore, the rectangular and triangular pulses are shown to be a special kind of trapezoidal pulse. This provides the basis for a very broad generalization of current signals’ analysis based on the analysis of a trapezoidal pulse. Additionally, a method for the direct evaluation of signals’ ripple RMS content is developed. This is unlike in the current literature where it is necessary to evaluate the signal’s average and RMS values before ripple content can be evaluated. The technique developed is applicable to continuous and discontinuous conduction modes of operation. Full article
(This article belongs to the Special Issue Modeling, Control, and Optimization of Power Electronic Converters)
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17 pages, 3664 KiB  
Article
Double Dual High Step-Up Power Converter with Reduced Stored Energy
by Hector R. Robles-Campos, Antonio Valderrabano-Gonzalez, Julio C. Rosas-Caro, Hossam A. Gabbar and Bhanu Babaiahgari
Energies 2023, 16(7), 3194; https://doi.org/10.3390/en16073194 - 1 Apr 2023
Cited by 3 | Viewed by 1449
Abstract
This paper introduces a dual-switchhigh step-up DC-DC power converter. The proposed converter features a high step-up voltage gain, relatively low cumulative stored energy over its inductors, low voltage stress on the active switches, and high efficiency, even at a relatively high duty ratio. [...] Read more.
This paper introduces a dual-switchhigh step-up DC-DC power converter. The proposed converter features a high step-up voltage gain, relatively low cumulative stored energy over its inductors, low voltage stress on the active switches, and high efficiency, even at a relatively high duty ratio. An assessment of the proposed converter against conventional boost and a high step-up power converter is presented in terms of steady-state time, voltage gain, stored energy over its inductors, and efficiency. The assessment shows a reduction of 81.25% and 62.5% of stored energy in inductors to comply with the same operational conditions. Simulation and experimental results are provided to validate the benefits of the proposed dual-switch high step-up power converter. Full article
(This article belongs to the Special Issue Modeling, Control, and Optimization of Power Electronic Converters)
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24 pages, 10324 KiB  
Article
Validation of the Quasi-Two-Level Operation for a Flying Capacitor Converter in Medium-Voltage Applications
by Stefan Christoph Mersche, Rüdiger Schwendemann and Marc Hiller
Energies 2023, 16(6), 2797; https://doi.org/10.3390/en16062797 - 17 Mar 2023
Cited by 2 | Viewed by 1054
Abstract
Standard medium-voltage converters are operated at low switching frequencies using bulky passive components. One concept to change this involves the quasi-two-level operation (Q2O) of multilevel converters that use fast-switching semiconductors to minimize the need for passive components. The flying capacitor converter (FCC) uses [...] Read more.
Standard medium-voltage converters are operated at low switching frequencies using bulky passive components. One concept to change this involves the quasi-two-level operation (Q2O) of multilevel converters that use fast-switching semiconductors to minimize the need for passive components. The flying capacitor converter (FCC) uses SiC semiconductors and operates with Q2O to minimize passive components. In this paper, two different quasi-two-level algorithms are analyzed. A medium-voltage prototype was built and low-voltage and medium-voltage measurements were used to validate the concept. A particular focus is on the overvoltage, the dv/dt behavior of the converter, as well as the dynamic behavior. Full article
(This article belongs to the Special Issue Modeling, Control, and Optimization of Power Electronic Converters)
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17 pages, 5307 KiB  
Article
Optimal Selection of Capacitors for a Low Energy Storage Quadratic Boost Converter (LES-QBC)
by Jose Solis-Rodriguez, Julio C. Rosas-Caro, Avelina Alejo-Reyes and Jesus E. Valdez-Resendiz
Energies 2023, 16(6), 2510; https://doi.org/10.3390/en16062510 - 7 Mar 2023
Cited by 6 | Viewed by 1498
Abstract
This article studies a recently proposed dc-dc converter and its optimization in terms of capacitors selection through the Particle Swarm Optimization (PSO) algorithm. The converter under study is the so-called Low Energy Storage Quadratic Boost Converter (LES-QBC), a quadratic type of converter that [...] Read more.
This article studies a recently proposed dc-dc converter and its optimization in terms of capacitors selection through the Particle Swarm Optimization (PSO) algorithm. The converter under study is the so-called Low Energy Storage Quadratic Boost Converter (LES-QBC), a quadratic type of converter that offers a smaller Output Voltage Ripple (OVR) compared to the traditional quadratic boost topology with capacitors of the same characteristics. This study presents a way to select the capacitors for minimizing the OVR while achieving a constraint of a maximum stored energy in capacitors. The capacitor’s stored energy is given as a design specification. The results are compared against the traditional quadratic boost converter and the LES-QBC without optimization (equal capacitance in capacitors). The optimization algorithm used was the so-called Particle Swarm Optimization (PSO). The experimental results demonstrate the effectiveness of the proposition. For the design exercise used for the results, the capacitor’s stored energy was kept almost the same, and a reduction in the OVR was achieved versus the non-optimized LES-QBC. Full article
(This article belongs to the Special Issue Modeling, Control, and Optimization of Power Electronic Converters)
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16 pages, 3270 KiB  
Article
Design of Uninterruptible Power Supply Inverters for Different Modulation Techniques Using Pareto Front for Cost and Efficiency Optimization
by Edemar O. Prado, Pedro C. Bolsi, Hamiltom C. Sartori and José R. Pinheiro
Energies 2023, 16(3), 1314; https://doi.org/10.3390/en16031314 - 26 Jan 2023
Cited by 8 | Viewed by 1297
Abstract
This work presents a design for uninterruptible power supply inverters using Pareto front optimization for improved cost and efficiency. Three PWM modulation techniques applied to the full-bridge inverter are analyzed. As a result, the best MOSFET design solution in terms of the cost [...] Read more.
This work presents a design for uninterruptible power supply inverters using Pareto front optimization for improved cost and efficiency. Three PWM modulation techniques applied to the full-bridge inverter are analyzed. As a result, the best MOSFET design solution in terms of the cost and efficiency of the inverter is evaluated based on a database with 47 power MOSFETs. Using the Pareto front, the optimal and sub-optimal solutions are compared, considering the three modulation techniques and the characteristics of MOSFETs manufactured for different voltage levels. Thermal and electrical measurements are used to validate the models. Full article
(This article belongs to the Special Issue Modeling, Control, and Optimization of Power Electronic Converters)
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18 pages, 4033 KiB  
Article
Multilevel Dual Active Bridge Leakage Inductance Selection for Various DC-Link Voltage Spans
by Babak Khanzadeh, Torbjörn Thiringer and Mohammad Kharezy
Energies 2023, 16(2), 859; https://doi.org/10.3390/en16020859 - 11 Jan 2023
Cited by 1 | Viewed by 1608
Abstract
The leakage inductance of the transformer in a dual active bridge (DAB) dc–dc converter directly impacts the ac current waveforms and the power factor; thus, it can be considered a design requirement for the transformer. In the existing literature, a choice is made [...] Read more.
The leakage inductance of the transformer in a dual active bridge (DAB) dc–dc converter directly impacts the ac current waveforms and the power factor; thus, it can be considered a design requirement for the transformer. In the existing literature, a choice is made to either ensure soft switching in nominal power or to minimize the RMS current of the transformer. The inductance is typically obtained using optimization procedures. Implementing these optimizations is time-consuming, which can be avoided if a closed-form equation is derived for the optimum leakage inductance. In this paper, analytical formulas are derived to estimate the desired leakage inductance such that the highest RMS value of the current in the operation region of a DAB is kept to its minimum value. The accuracy and sensitivity of the analytical solutions are evaluated. It is shown that in a large design domain, the solution for the YY-connected MFT has a less than 3% error compared to the results obtained from an optimization engine. As an example of the importance of selecting the leakage inductance correctly, it is shown that for 11% deviations in the dc link voltages, a 10% deviation from the desired leakage inductance value can cause 2% higher RMS currents in the converter. Full article
(This article belongs to the Special Issue Modeling, Control, and Optimization of Power Electronic Converters)
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