Special Issue "Industrial Applications of Power Electronics"

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: 31 December 2019.

Special Issue Editors

Guest Editor
Prof. Dr. Eduardo M. G. Rodrigues

Management and Production Technologies of Northern Aveiro—ESAN, Estrada do Cercal, 449, Santiago de Riba-Ul, 3720-509 Oliveira de Azeméis, Portugal
Website 1 | Website 2 | E-Mail
Interests: advanced industrial power electronics applications; instrumentation and signal acquisition; digital signal processing; maintenance engineering; advanced control techniques and implementation
Guest Editor
Dr. Edris Pouresmaeil

Associate Professor, Department of Electrical Engineering and Automation, Aalto University, 02150 Espoo, Finland
Website | E-Mail
Interests: integration of renewable energy sources into the power grid; power converters and applications of power converters in power systems; dynamic modelling and analysis of power electronic converters and systems; stability analysis of power converters in power system; microgrids operation and control; Smart Grid systems and technologies
Guest Editor
Dr. Radu Godina

UNIDEMI - Department of Mechanical and Industrial Engineering, Faculty of Science and Technology (FCT), Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
Website 1 | Website 2 | E-Mail
Interests: energy efficiency; electric grids; electric vehicles; transformers; sustainability; model predictive control and quality management systems

Special Issue Information

Dear Colleagues

In recent years, power electronics have been intensely contributing to the development and evolution of new structures for the processing of energy. It is becoming very common to generate electrical energy in different ways and convert it into another form in order to be able to use it—for instance, renewable sources, battery banks, and the transmission of electric power in direct current (DC), which make available the voltage of the network in different levels in detriment to the supplied voltage from the grid. The main users of these signals are the electronic equipment that use voltages at levels different from that available from the grid; the drives of electrical machines, which modify the voltage of the electrical network (amplitude and frequency) to control the machines; and finally in electrical systems, DC power transmission and frequency conversion.

Two leading trends are currently noticeable in the power systems field of study. The first trend is the increasingly and prevalent employment of renewable energy resources. The second trend is decentralized energy generation. This scenario raises many challenges. Therefore, the design, development, and optimization of power electronics and controller devices are required in order to face such challenges. New microprocessor control units (MCUs) could be utilized for power production control and for remote control operation, while power electronic converters are and could be utilized to control the power flow.

Nevertheless, power electronics can be used for a wide range of applications, from power systems and electrical machines to electric vehicles and robot arm drives. In conjunction with the evolution of microprocessors and advanced control theories, power electronics is playing an increasingly essential role in our society.

Thus, in order cope with the obstacles lying ahead, original studies and modeling methods can be developed and proposed that could overcome the physical and technical boundary conditions and at the same time consider technical, economic, and environmental aspects. The objective of this Special Issue is to present studies in the field of electrical energy conditioning and control using circuits and electronic devices, with emphasis on power applications and industrial control. Therefore, researchers are invited to submit their manuscripts to this Special Issue and contribute their models, proposals, reviews, and studies.

Prof. Dr. Eduardo M. G. Rodrigues
Prof. Dr. Edris Pouresmaeil
Dr. Radu Godina
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 papers will be 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. Electronics 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 1400 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 converters
  • electrical machines
  • power grid stability analysis
  • power network analysis and control
  • power electronics switching devices
  • simulations of power electronic systems
  • renewable power generation technologies
  • industrial, commercial, and residential applications
  • solar inverters
  • power control of wind turbines
  • motor drives
  • power semiconductor devices
  • multilevel converters
  • fault diagnosis in electrical machines
  • power supplies
  • converters in microgrid applications
  • power electronics in smart grid
  • manufacturing of components and assemblies used in power electronics
  • manufacturing, quality, and testing of power electronics equipment
  • electric/hybrid vehicle converters
  • power quality, harmonics, and reactive power compensation
  • electromagnetic compatibility (EMC) and electromagnetic interference (EMI)

Published Papers (10 papers)

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Research

Open AccessFeature PaperArticle
A Multi-Inductor H Bridge Fault Current Limiter
Electronics 2019, 8(7), 795; https://doi.org/10.3390/electronics8070795
Received: 18 May 2019 / Revised: 28 June 2019 / Accepted: 12 July 2019 / Published: 16 July 2019
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Abstract
Current power systems will suffer from increasing pressure as a result of an upsurge in demand and will experience an ever-growing penetration of distributed power generation, which are factors that will contribute to a higher of incidence fault current levels. Fault current limiters [...] Read more.
Current power systems will suffer from increasing pressure as a result of an upsurge in demand and will experience an ever-growing penetration of distributed power generation, which are factors that will contribute to a higher of incidence fault current levels. Fault current limiters (FCLs) are key power electronic devices. They are able to limit the prospective fault current without completely disconnecting in cases in which a fault occurs, for instance, in a power transmission grid. This paper proposes a new type of FCL capable of fault current limiting in two steps. In this way, the FCLs’ power electronic switches experience significantly less stress and their overall performance will significantly increase. The proposed device is essentially a controllable H bridge type fault current limiter (HBFCL) that is comprised of two variable inductances, which operate to reduce current of main switch in the first stage of current limiting. In the next step, the main switch can limit the fault current while it becomes open. Simulation studies are carried out using MATLAB and its prototype setup is built and tested. The comparison of experimental and simulation results indicates that the proposed HBFCL is a promising solution to address protection issues. Full article
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
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Open AccessArticle
An Improved Model Predictive Torque Control for a Two-Level Inverter Fed Interior Permanent Magnet Synchronous Motor
Electronics 2019, 8(7), 769; https://doi.org/10.3390/electronics8070769
Received: 21 June 2019 / Revised: 5 July 2019 / Accepted: 8 July 2019 / Published: 10 July 2019
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Abstract
In conventional model predictive control, the dimensions of the control variables are different from each other, which makes adjusting the weighted factors in the cost function complicated. This issue can be solved by adopting the model predictive flux control. However, the performance of [...] Read more.
In conventional model predictive control, the dimensions of the control variables are different from each other, which makes adjusting the weighted factors in the cost function complicated. This issue can be solved by adopting the model predictive flux control. However, the performance of the electromagnetic torque is affected by the change of the cost function. A novel model predictive torque control of the interior permanent magnet synchronous motor is presented in this paper, and the cost function involving the excitation torque and reluctance torque is established. Combined with the model predictive flux control and discrete space vector modulation, the current ripple and torque ripple are reduced. The performance of torque under an overload condition is superior to model predictive flux control. The effectiveness of the proposed algorithm is verified by the simulation and experimental results. Full article
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
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Open AccessArticle
A Wide-Frequency Constant-Amplitude Transmitting Circuit for Frequency Domain Electromagnetic Detection Transmitter
Electronics 2019, 8(6), 640; https://doi.org/10.3390/electronics8060640
Received: 7 May 2019 / Revised: 30 May 2019 / Accepted: 5 June 2019 / Published: 6 June 2019
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Abstract
In this paper, a novel AC magnetic transmitter current source circuit is proposed for application of frequency domain electromagnetic method (FEM) prospecting. The proposed current source circuit is capable of generating high frequency and high constant amplitude currents, which are key technical problems [...] Read more.
In this paper, a novel AC magnetic transmitter current source circuit is proposed for application of frequency domain electromagnetic method (FEM) prospecting. The proposed current source circuit is capable of generating high frequency and high constant amplitude currents, which are key technical problems for FEM. It is suitable for very wide frequencies. The main circuit of the proposed current source consists of a rising-edge enhancing unit, a constant current control unit, and a high voltage clamping unit. Large constant clamping voltage is applied during the rising edge and the falling edge of the alternating square current to obtain a high frequency and high linearity current source. On the current flat stage, the constant current unit provides the energy to the load to ensure the constant amplitude of the output current. Detailed operations of the proposed magnetic current source are given. Simulation and experimental results demonstrate that the proposed circuit achieves short reversal time, the linearity of the rising/falling edge, constant amplitude and low power loss. These are the desired characteristics of the ac square current source probing transmitter for the magnetic FEM applications. Full article
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
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Open AccessFeature PaperArticle
A Compound Current Limiter and Circuit Breaker
Electronics 2019, 8(5), 551; https://doi.org/10.3390/electronics8050551
Received: 18 April 2019 / Revised: 6 May 2019 / Accepted: 7 May 2019 / Published: 16 May 2019
Cited by 2 | PDF Full-text (3471 KB) | HTML Full-text | XML Full-text
Abstract
The protection of sensitive loads against voltage drop is a concern for the power system. A fast fault current limiter and circuit breaker can be a solution for rapid voltage recovery of sensitive loads. This paper proposes a compound type of current limiter [...] Read more.
The protection of sensitive loads against voltage drop is a concern for the power system. A fast fault current limiter and circuit breaker can be a solution for rapid voltage recovery of sensitive loads. This paper proposes a compound type of current limiter and circuit breaker (CLCB) which can limit fault current and fast break to adjust voltage sags at the protected buses. In addition, it can act as a circuit breaker to open the faulty line. The proposed CLCB is based on a series L-C resonance, which contains a resonant transformer and a series capacitor bank. Moreover, the CLCB includes two anti-parallel power electronic switches (a diode and an IGBT) connected in series with bus couplers. In order to perform an analysis of CLCB performance, the proposed structure was simulated using MATLAB. In addition, an experimental prototype was built, tested, and the experimental results were reported. Comparisons show that experimental results were in fair agreement with the simulation results and confirm CLCB’s ability to act as a fault current limiter and a circuit breaker. Full article
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
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Open AccessFeature PaperArticle
A Data-Driven Based Voltage Control Strategy for DC-DC Converters: Application to DC Microgrid
Electronics 2019, 8(5), 493; https://doi.org/10.3390/electronics8050493
Received: 27 March 2019 / Revised: 18 April 2019 / Accepted: 22 April 2019 / Published: 30 April 2019
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Abstract
This paper develops a data-driven strategy for identification and voltage control for DC-DC power converters. The proposed strategy does not require a pre-defined standard model of the power converters and only relies on power converter measurement data, including sampled output voltage and the [...] Read more.
This paper develops a data-driven strategy for identification and voltage control for DC-DC power converters. The proposed strategy does not require a pre-defined standard model of the power converters and only relies on power converter measurement data, including sampled output voltage and the duty ratio to identify a valid dynamic model for them over their operating regime. To derive the power converter model from the measurements, a local model network (LMN) is used, which is able to describe converter dynamics through some locally active linear sub-models, individually responsible for representing a particular operating regime of the power converters. Later, a local linear controller is established considering the identified LMN to generate the control signal (i.e., duty ratio) for the power converters. Simulation results for a stand-alone boost converter as well as a bidirectional converter in a test DC microgrid demonstrate merit and satisfactory performance of the proposed data-driven identification and control strategy. Moreover, comparisons to a conventional proportional-integral (PI) controllers demonstrate the merits of the proposed approach. Full article
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
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Open AccessFeature PaperArticle
Comprehensive Comparative Analysis of Impedance-Source Networks for DC and AC Application
Electronics 2019, 8(4), 405; https://doi.org/10.3390/electronics8040405
Received: 19 March 2019 / Revised: 30 March 2019 / Accepted: 2 April 2019 / Published: 5 April 2019
Cited by 1 | PDF Full-text (8531 KB) | HTML Full-text | XML Full-text
Abstract
This paper presents a comprehensive analytical comparison of the impedance-source-based dc-dc and dc-ac converters in terms of the passive component count and size, semiconductor stress, and range of input voltage variation. The conventional solution with a boost converter was considered as a reference [...] Read more.
This paper presents a comprehensive analytical comparison of the impedance-source-based dc-dc and dc-ac converters in terms of the passive component count and size, semiconductor stress, and range of input voltage variation. The conventional solution with a boost converter was considered as a reference value. The main criterion of the comprehensive comparison was the energy stored in the passive elements, which was considered both under a constant and predefined high frequency current ripple in the inductors and the voltage ripple across the capacitors. Main impedance-source converters with or without a transformer and with or without inductor coupling were analyzed. Dc-dc and dc-ac applications were considered. Selective simulation results along with experimental verification are shown. The conclusions provide a selection guide of impedance-source networks for different applications taking into account its advantages and disadvantages. Full article
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
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Open AccessArticle
Nonlinear Effects of Three-Level Neutral-Point Clamped Inverter on Speed Sensorless Control of Induction Motor
Electronics 2019, 8(4), 402; https://doi.org/10.3390/electronics8040402
Received: 12 March 2019 / Revised: 29 March 2019 / Accepted: 30 March 2019 / Published: 4 April 2019
Cited by 1 | PDF Full-text (6127 KB) | HTML Full-text | XML Full-text
Abstract
In the model reference adaptive speed observer, the induction motor supply voltage is used as the input of the reference model. However, measuring the supply voltage complicates the system and increases the cost, so the command voltage calculated by the controller is generally [...] Read more.
In the model reference adaptive speed observer, the induction motor supply voltage is used as the input of the reference model. However, measuring the supply voltage complicates the system and increases the cost, so the command voltage calculated by the controller is generally used instead of the actual supply voltage in the drive system. However, due to the nonlinear effects of the inverter, the voltage calculated by the controller is different from the actual supply voltage, resulting in a speed observation deviation. This paper analyzes the multiple effects that cause the three-level neutral-point clamped (TL-NPC) inverter output voltage and command voltage deviation. A voltage deviation compensation measure based on the volt-second balance principle is proposed. In this context, the expression of the rotational speed deviation caused by the voltage deviation is derived rigorously and in detail. Finally, the effectiveness of the voltage compensation measure is verified by experiments. The experimental results are basically consistent with the theoretical derivation expressions. The method and analysis in this paper is applicable to induction motor speed sensorless control systems driven by two-level and other multilevel inverters. Full article
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
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Open AccessArticle
A Topology-Based Approach to Improve Vehicle-Level Electromagnetic Radiation
Electronics 2019, 8(3), 364; https://doi.org/10.3390/electronics8030364
Received: 27 January 2019 / Revised: 11 March 2019 / Accepted: 20 March 2019 / Published: 25 March 2019
Cited by 1 | PDF Full-text (5612 KB) | HTML Full-text | XML Full-text
Abstract
The popularity of the electric vehicle (EV) brings us many challenges of electromagnetic compatibility (EMC). Automotive manufacturers are obliged to keep their products in compliance with EMC regulations. However, the EV is a complex system composed of various electromagnetic interferences (EMI), sensitive equipment [...] Read more.
The popularity of the electric vehicle (EV) brings us many challenges of electromagnetic compatibility (EMC). Automotive manufacturers are obliged to keep their products in compliance with EMC regulations. However, the EV is a complex system composed of various electromagnetic interferences (EMI), sensitive equipment and complicated coupling paths, which pose great challenges to the efficient troubleshooting of EMC problems. This paper presents an electromagnetic topology (EMT) based model and analysis method for vehicle-level EMI prediction, which decomposes an EV into multi-subsystems and transforms electromagnetic coupling paths into network parameters. This way, each part could be modelled separately with different technologies and vehicle-level EMI was able to be predicted by algebra calculations. The effectiveness of the proposed method was validated by comparing predicted vehicle-radiated emissions at low frequency with experimental results, and application to the troubleshooting of emission problems. Full article
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
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Open AccessArticle
An Alternative Carrier-Based Implementation of Space Vector Modulation to Eliminate Common Mode Voltage in a Multilevel Matrix Converter
Electronics 2019, 8(2), 190; https://doi.org/10.3390/electronics8020190
Received: 13 December 2018 / Revised: 25 January 2019 / Accepted: 30 January 2019 / Published: 6 February 2019
Cited by 2 | PDF Full-text (6904 KB) | HTML Full-text | XML Full-text
Abstract
The main aim of the paper is to find a control method for a multilevel matrix converter (MMC) that enables the elimination of common mode voltage (CMV). The method discussed in the paper is based on a selection of converter configurations and the [...] Read more.
The main aim of the paper is to find a control method for a multilevel matrix converter (MMC) that enables the elimination of common mode voltage (CMV). The method discussed in the paper is based on a selection of converter configurations and the instantaneous output voltages of MMC represented by rotating space vectors. The choice of appropriate configurations is realized by the use of space vector modulation (SVM), with the application of Venturini modulation functions. A multilevel matrix converter, which utilizes a multilevel structure in a traditional matrix converter (MC), can achieve an improved output voltage waveform quality, compared with the output voltage of MC. The carrier-based implementation of SVM is presented in this paper. The carrier-based implementation of SVM avoids any trigonometric and division operations, which could be required in a general space vector approach to the SVM method. With use of the proposed control method, a part of the high-frequency output voltage distortion components is eliminated. The application of the presented modulation method eliminates the CMV in MMC what is presented in the paper. Additionally, the possibility to control the phase shift between the appropriate input and output phase voltages is obtained by the presented control strategy. The results of the simulation and experiment confirm the utility of the proposed modulation method. Full article
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
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Open AccessArticle
An Experimental Study of the Failure Mode of ZnO Varistors Under Multiple Lightning Strokes
Electronics 2019, 8(2), 172; https://doi.org/10.3390/electronics8020172
Received: 15 January 2019 / Revised: 26 January 2019 / Accepted: 31 January 2019 / Published: 2 February 2019
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Abstract
In this study, in order to explore the failure mode of ZnO varistors under multiple lightning strokes, a five-pulse 8/20 μs nominal lightning current with pulse intervals of 50 ms was applied to ZnO varistors. Scanning electron microscopy (SEM) and X-ray diffractometry (XRD) [...] Read more.
In this study, in order to explore the failure mode of ZnO varistors under multiple lightning strokes, a five-pulse 8/20 μs nominal lightning current with pulse intervals of 50 ms was applied to ZnO varistors. Scanning electron microscopy (SEM) and X-ray diffractometry (XRD) were used to analyze the microstructure of the material. The failure processes of ZnO varistors caused by multiple lightning impulse currents were described. The performance changes of ZnO varistors after multiple lightning impulses were analyzed from both macro and micro perspectives. According to the results of this study’s experiments, the macroscopic failure mode of ZnO varistors after multiple lightning impulses involved the rapid deterioration of the electrical parameters with the increase of the number of impulse groups, until destruction occurred by side-corner cracking. The microstructural examination indicated that, after the multiple lightning strokes, the proportion of Bi in the crystal phases was altered, the grain size of the ZnO varistors became smaller, and the white intergranular phase (Bi-rich grain boundary layer) increased significantly. The failure mechanism was thermal damage and grain boundary structure damage caused by temperature gradient thermal stress, generated by multiple lightning currents. Full article
(This article belongs to the Special Issue Industrial Applications of Power Electronics)
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