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Energies
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Advanced Research on the Control of Power Converters
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Advanced Research on the Control of Power Converters

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F1: Electrical Power System".

Deadline for manuscript submissions: closed (17 March 2023) | Viewed by 7289

Special Issue Editor

Prof. Dr. Saad Mekhilef

E-Mail Website
Guest Editor
1. School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
2. Power Electronics and Renewable Energy Research Laboratory, Department of Electrical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
Interests: power conversion techniques; control of power converters; maximum power point tracking (MPPT); renewable energy; energy efficiency; smart grid; microwave and wireless technologies
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Due to the substantial advancement in semiconductor devices, power electronics converters are getting distinct attention in a wide variety of applications as renewable energy conversion, drive systems, power quality applications, grid integration, HVDC transmission, energy storage system, electric vehicle (EV), transportation and Flexible AC Transmission Systems (FACTS). To meet the requirements and standards of the relevant applications, control of power converters plays an important role. As an example, for ensuring adequate renewable energy penetration into the smart grid with good power quality, the vital factor is the control of power converters. Further, in applications like energy storage systems and EVs, where energy and power management are essential, control of power converters is the backbone for those applications. Moreover, the high dynamic performance and robustness are typical demands for machine drives applications. Therefore, advanced and sophisticated control techniques for power converters are essential to meet different applications requirements.

The main purpose of this special issue is to publish high-quality original research papers as well as review articles addressing recent advances on the control for power converters. Any research topic contributing to the advancement of power electronics technologies will be considered in this special issue. Topics of interest include, but are not limited to, the following:

  • Innovative power converter topologies;
  • Power converters design and modeling;
  • Advanced control techniques for DC-DC, DC-AC, and AC-DC converters;
  • Analog and digital control of power converters;
  • Power converters control for renewable energy applications;
  • Power converters control for drive systems applications;
  • Power converters for microgrid and smart grid applications;
  • Grid-connected power converters control;
  • Bi-directional power converters;
  • Modular multilevel converters (MMC);
  • Advanced PWM techniques for power converters control;
  • Multilevel power converters.

Prof. Dr. Saad Mekhilef
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. 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

  • innovative power converter topologies
  • power converters design and modeling
  • advanced control techniques for DC-DC, DC-AC, and AC-DC converters
  • analog and digital control of power converters
  • power converters control for renewable energy applications
  • power converters control for drive systems applications
  • power converters for microgrid and smart grid applications
  • grid-connected power converters control
  • bi-directional power converters
  • modular multilevel converters (MMC)
  • advanced PWM techniques for power converters control
  • multilevel power converters

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Published Papers (4 papers)

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22 pages, 8861 KiB  
Article
Decentralized Control for the Cell Power Balancing of a Cascaded Full-Bridge Multilevel Converter
by Miguel Vivert, Rafael Diez, Marc Cousineau, Diego Bernal Cobaleda and Diego Patino
Energies 2023, 16(11), 4352; https://doi.org/10.3390/en16114352 - 26 May 2023
Cited by 2 | Viewed by 1359
Abstract
This article presents a decentralized control technique applied to a Cascaded Full-Bridge Multilevel Converter (CFBMC) to balance the amount of power provided by its independent cells connected in series. It is based on the use of elementary modular controllers, associated with each converter [...] Read more.
This article presents a decentralized control technique applied to a Cascaded Full-Bridge Multilevel Converter (CFBMC) to balance the amount of power provided by its independent cells connected in series. It is based on the use of elementary modular controllers, associated with each converter cell, communicating with their close neighbors to obtain the appropriate power balancing. A complete theoretical study of the system is provided in terms of modal responses, feedback loop bandwidth and stability criteria and the design method of the correctors is explained as well. Each modular controller can be dynamically removed or added to allow reconfiguration of the number of converter cells during operation for functional safety purposes. This method is illustrated with a five-cell CFBMC, studied both with simulations and experimental tests. The response of the system to load transients and cell voltage disturbances demonstrates the robustness of the proposed control method. Thanks to its modularity, the number of voltage levels of the converter can be easily increased by inserting new cells in series without adding complexity to the control part. Full article
(This article belongs to the Special Issue Advanced Research on the Control of Power Converters)
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14 pages, 7822 KiB  
Article
An Experimental EMC Investigation of On-Board Interleaved Buck Converters
by Lajos Nagy and Tamás Kőnig
Energies 2023, 16(9), 3732; https://doi.org/10.3390/en16093732 - 27 Apr 2023
Cited by 1 | Viewed by 1187
Abstract
On board a satellite, there are different devices that operate from a common energy source called a power bus. Since there are many devices connected to the same power bus and they are in the close vicinity of each other, it is important [...] Read more.
On board a satellite, there are different devices that operate from a common energy source called a power bus. Since there are many devices connected to the same power bus and they are in the close vicinity of each other, it is important that they are able to function adequately in the electromagnetic environment of the satellite without introducing intolerable electromagnetic interference to other devices. On-board devices often require voltage levels different from the bus voltage to function, and this is often produced by switching-mode power supplies (SMPS). Their switching-mode operation guarantees that there is less power loss during conversion; however, they also emit conducted and radiated noises into the direction of the power bus and the payloads. In the case of multiple SMPS powered by the same power bus, we can interleave their switching periods. Thus, their noises will cancel each other out on their common input. In this study, we are going to demonstrate the noise reduction of the interleaving method with a setup consisting of two DC-DC converters connected to a simulated power bus. Full article
(This article belongs to the Special Issue Advanced Research on the Control of Power Converters)
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21 pages, 8550 KiB  
Article
A Current Sensorless Control of Buck-Boost Converter for Maximum Power Point Tracking in Photovoltaic Applications
by Nabil Obeidi, Mostefa Kermadi, Bachir Belmadani, Abdelkarim Allag, Lazhar Achour and Saad Mekhilef
Energies 2022, 15(20), 7811; https://doi.org/10.3390/en15207811 - 21 Oct 2022
Cited by 8 | Viewed by 2321
Abstract
In the present paper, a current sensorless (CSL) method for buck-boost converter control is proposed for maximum power point tracking (MPPT) photovoltaic applications. The proposed control scheme uses the mathematical model of the buck-boost converter to derive a predefined objective function for the [...] Read more.
In the present paper, a current sensorless (CSL) method for buck-boost converter control is proposed for maximum power point tracking (MPPT) photovoltaic applications. The proposed control scheme uses the mathematical model of the buck-boost converter to derive a predefined objective function for the MPPT control. The proposed scheme does not require any current sensor and relies only on the input voltage signal, which decreases the implementation cost. The proposed method is successfully implemented using a Matlab/Simulink/Stateflow environment, and its effectiveness is compared over the perturb and observe (P&O) method. An experimental rig, that includes a buck-boost converter, a PV simulator, and a resistive load, is used for the experimental validation. A rapid Arduino prototyping platform is used for the digital implementation, where the SAM3X8E microcontroller of the Arduino DUE board, which integrates an ARM Cortex-M3 MCU, is used as a target hardware for the proposed model-based controller developed under the Stateflow environment. Furthermore, the integrated pulse width modulation (PWM) macrocell is used to generate accurate PWM gate-drive signals for the buck-boost converter. Compared to the P&O, the presented simulation and experimental results show that the proposed method has reduced the computation burden and the sensor cost of implementation by 24.3%, and 27.95%, respectively. Full article
(This article belongs to the Special Issue Advanced Research on the Control of Power Converters)
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19 pages, 6026 KiB  
Article
Adaptive Second-Order Sliding Mode Control of Buck Converters with Multi-Disturbances
by Yanmin Wang, Weiqi Zhang, Yalong Yang, Chen Xue, Shibo Yuan and Hanqing Zhang
Energies 2022, 15(14), 5139; https://doi.org/10.3390/en15145139 - 15 Jul 2022
Cited by 4 | Viewed by 1624
Abstract
In this paper, a novel adaptive second-order sliding mode (2-SM) control approach, based on online zero-crossing detection, was proposed to solve the problems of the chattering and fixed control gain for buck converters with multi-disturbances. In modeling, the possible parameter perturbations and external [...] Read more.
In this paper, a novel adaptive second-order sliding mode (2-SM) control approach, based on online zero-crossing detection, was proposed to solve the problems of the chattering and fixed control gain for buck converters with multi-disturbances. In modeling, the possible parameter perturbations and external disturbances of the converter system were contained. Instead of the traditional first-order sliding mode (1-SM), the twisting algorithm with 2-SM was adopted for the controller design, which could overcome the chattering problem and realize control continuity. Meanwhile, a novel adaptive mechanism was introduced to replace the conventional fixed control gain by time-varying control gain, the idea of which is to calculate the number of the zero-crossing points of the sliding surface online. As a result, the control magnitude of the improved controller could be reduced to a minimal admissible level, and the steady error of the output voltage could converge to the expected value. Furthermore, the robust stability of the converter system with multi-disturbances wads investigated. Comparative simulations and experiments validated the advantages of this paper as offering better robustness and control performance. Full article
(This article belongs to the Special Issue Advanced Research on the Control of Power Converters)
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