Contributions to Modeling and Control of Power Electronic Converters

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (30 May 2022) | Viewed by 6634

Special Issue Editors

Departament d’Enginyeria Electrònica Elèctrica i Automàtica (ETSE), Universitat Rovira i Virgili, 43007 Tar-ragona, Spain
Interests: control of power converters; power electronics; photovoltaic solar energy; microgrids and engineering education
Special Issues, Collections and Topics in MDPI journals
Department of Decision and Optimization (DO), Laboratoire d’Analyse et d’Architecture des Systèmes (LAAS), University of Toulouse, Av. Colonel Roche, F-31400 Toulouse, France
Interests: power converters; electrical and electronics engineering; control theory; feedback control; control systems; controller design; nonlinear control; power systems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The relevance of power converters in energy processing applications has grownin the last years with the proliferation of renewable energies, microgrids and electric vehicles, among others. This breakthrough has gone hand in hand with development of new modeling approaches and advanced control techniques. Altougth classic lineal methods have demonstrated to be well established in power electronics industry and academy for many years, recent contributions in control design techniques have helped to achieve improved performances and to widen the fields of application. In the context of modeling, significant works have been made to consider models preserving the nonlinear and switching features associated, in general, to power energy conversion devices. These models are better suited for describing the behavior of such systems and then more adapted to deal with advanced control design techniques. This is the case, in particular, for hybrid systems, variable structure system approaches mainly related with sliding mode control, and for the model predictive-based techniques, among others.

One of the main challenges in this field is to provide control laws ensuring a safe and performant operation of the converters in wide ranges of input voltage and output power trying to guarantee a high quality behavior despite of external disturbances and uncertainities in the parameters of the system model. Another important challenge is to develop control strategies allowing a single device to operate in different modes facilitating its integration in different power systems. This is the case of stand-alone converters feeding DC or AC loads, converters allowing exchange of energy between DC and AC power distribution buses and converters integrated to industrial devices such as motor drives, uninterruptible power supplies and others.

The aim of this second Special Issue about this topic is to strengthen the interaction between power electronics and control systems communities, attracting contributions in the modeling and control of power electronic converters from the theory to the real implementation.

Prof. Dr. Oswaldo Lopez Santos
Prof. Dr. Germain García
Guest Editors

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Keywords

  • power electronic converters
  • DC-DC converters
  • DC-AC converters
  • AC-DC converters
  • nonlinear control
  • microgrids
  • intelligent control
  • hybrid control
  • robust control
  • modeling
  • photovoltaic systems
  • MPPT

Published Papers (4 papers)

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Research

27 pages, 10008 KiB  
Article
Integrated Fuzzy-Logic and Triple-Loop PI-Based Management Strategy for a Lead-Acid/Lithium-Ion Hybrid Battery Energy Storage System
by Mpho J. Lencwe, Andre T. Puati Zau, S. P. Daniel Chowdhury and Thomas O. Olwal
Appl. Sci. 2022, 12(14), 6910; https://0-doi-org.brum.beds.ac.uk/10.3390/app12146910 - 08 Jul 2022
Cited by 2 | Viewed by 1352
Abstract
The huge success of electric vehicles across the world is challenged by a lack of infrastructure and a major increase in battery material prices. This challenge positions internal combustion engine vehicles (ICEVs) to remain a vehicle of choice. The majority of these vehicles [...] Read more.
The huge success of electric vehicles across the world is challenged by a lack of infrastructure and a major increase in battery material prices. This challenge positions internal combustion engine vehicles (ICEVs) to remain a vehicle of choice. The majority of these vehicles use a lead-acid battery (LAB) for starting, lighting, and ignition (SLI) functions. However, these LABs are faced with challenges of short lifespan and low storage capacity because of improved electronic systems in modern ICEVs. In this manuscript, we propose an extension application of a hybrid LAB and lithium-ion energy storage system (ESS) for a vehicle using a single source of 70 Ah and 90 Ah capacity. Whereas previously, a hybrid energy storage system (HESS) for use in a vehicle using a source of 50 Ah battery capacity was proposed. Hence, the unique contribution of the study is using an integrated fuzzy-logic and triple-loop-proportional-integral-based battery management strategy (BMS) to improve LAB performance in a wide range of vehicles with different battery capacities sizes. The results show that the proposed BMS can help increase LAB lifespan and improve the storage capacity of the system, thus ensuring reliability. Additionally, compared to a single use of LAB, the combined energy storage system shows superior performance. Full article
(This article belongs to the Special Issue Contributions to Modeling and Control of Power Electronic Converters)
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19 pages, 5681 KiB  
Article
Dual-Boost Inverter for PV Microinverter Application—An Assessment of Control Strategies
by Diana Lopez-Caiza, Hugues Renaudineau, Nicolas Muller, Freddy Flores-Bahamonde, Samir Kouro and Jose Rodriguez
Appl. Sci. 2022, 12(12), 5952; https://0-doi-org.brum.beds.ac.uk/10.3390/app12125952 - 11 Jun 2022
Cited by 5 | Viewed by 1763
Abstract
Photovoltaic (PV) microinverters have grown rapidly in the small-scale PV market, where typical two-stage converters are used to connect one PV module to the single-phase AC grid. This configuration achieves better performance in terms of energy yield compared with other PV configurations. However, [...] Read more.
Photovoltaic (PV) microinverters have grown rapidly in the small-scale PV market, where typical two-stage converters are used to connect one PV module to the single-phase AC grid. This configuration achieves better performance in terms of energy yield compared with other PV configurations. However, the conversion efficiency of a two-stage system is the main drawback, especially when a high-voltage gain effort is required. In this context, single-stage microinverter topologies have been recently proposed since only one power conversion stage is required to extract the maximum power of the PV module and inject the AC power to the grid. This single-stage configuration allows considerable improvement of the overall efficiency of microinverters by reducing the number of elements in the system. However, the main challenge of these topologies is their control, since all variables of the converter are composed by the AC waveform with DC-bias. In this paper, four control strategies are analyzed for the mainstream single-stage topology, which is the dual-boost inverter (DBI). Classical linear control and three non-linear strategies, namely finite control set–model predictive control, flatness-based control, and sliding mode control, are detailed. The main contribution of this work is a complete comparison of the control strategies, to give insights into the most suitable control strategy for the DBI in PV microinverter application. Full article
(This article belongs to the Special Issue Contributions to Modeling and Control of Power Electronic Converters)
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21 pages, 4972 KiB  
Article
Analysis of Non-Minimum Phase System for AC/DC Battery Charger Power Factor Correction Converter
by Mahmoud Nassary, Enric Vidal-Idiarte and Javier Calvente
Appl. Sci. 2022, 12(2), 868; https://0-doi-org.brum.beds.ac.uk/10.3390/app12020868 - 15 Jan 2022
Cited by 4 | Viewed by 1557
Abstract
Electric mobility is nowadays one of the more important trends regarding pollution reduction and global warming due to fuel consumption. Big efforts are done in order to develop efficient and reliable power electronic systems for electric vehicles. In two stage on board-battery chargers, [...] Read more.
Electric mobility is nowadays one of the more important trends regarding pollution reduction and global warming due to fuel consumption. Big efforts are done in order to develop efficient and reliable power electronic systems for electric vehicles. In two stage on board-battery chargers, one way of improving efficiency is by means of ensuring the DC-DC isolated converter always operates in the nominal input/output voltage ratio, that could be achieved with a variable DC-link operation. In this paper, a four-switch buck-boost based AC/DC converter is deeply analyzed in order to improve its dynamic performance, the power factor and the total harmonic distortion. The converter suffers from a non-minimum phase characteristic in different input–output transfer functions, which reduces the closed-loop bandwidth of the system. Therefore, after a deep converter analysis has been done, different solutions have been evaluated and tested. Finally, a control to different output transfer functions of the converter become minimum phase, which allows us to increase the system bandwidth and, consequently, high power factor, low harmonics distortion, single control structure and fast dynamics for wide output voltage range are achieved. Full article
(This article belongs to the Special Issue Contributions to Modeling and Control of Power Electronic Converters)
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30 pages, 1048 KiB  
Article
A Unified Approach for the Control of Power Electronics Converters. Part II: Tracking
by Germain Garcia, Oswaldo Lopez-Santos and Luis Martinez-Salamero
Appl. Sci. 2021, 11(16), 7618; https://0-doi-org.brum.beds.ac.uk/10.3390/app11167618 - 19 Aug 2021
Cited by 3 | Viewed by 1259
Abstract
This paper extends the results recently proposed in Part I of this research work focused on the stabilization of power electronic converters. This second part is devoted to cases in which the underlying control problems can be translated into tracking control problems. This [...] Read more.
This paper extends the results recently proposed in Part I of this research work focused on the stabilization of power electronic converters. This second part is devoted to cases in which the underlying control problems can be translated into tracking control problems. This is the case for DC-AC converters whose output must track a sinusoidal reference signal. The idea is to tackle the problem in a unified manner in order to avoid as much as possible the use of approximations and to exploit all the mathematical properties of the corresponding switched models. The case in which measurable or non-measurable perturbations are present is considered. The proposed techniques are illustrated for two particular DC-AC converters simulated using the PSIM software. Full article
(This article belongs to the Special Issue Contributions to Modeling and Control of Power Electronic Converters)
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