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Electronics
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High Voltage Power Supplies
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High Voltage Power Supplies

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

Deadline for manuscript submissions: closed (1 July 2022) | Viewed by 16798

Special Issue Editors

Prof. Dr. Pedro J. Villegas

E-Mail Website
Guest Editor
Department of Electrical, Electronic, Communications and Systems Engineering, University of Oviedo, 33204 Gijon, Spain
Interests: switching-mode power supplies; converter modeling; high-power-factor rectifiers; high-power–high-voltage power supplies
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Juan A. Martín-Ramos

E-Mail Website
Guest Editor
Department of Electrical, Electronic, Computers and Systems Engineering, University of Oviedo, Gijon, Spain
Interests: DC–DC power converters; converter modeling; resonant inverters; high voltage techniques; current control

Special Issue Information

Dear Colleagues,

High output voltage, teens of kV, is required to power many systems from a wide range of medical (X-ray, CT or MRI equipment), industrial (electrostatic precipitators, surface treatment, electron beam welding, HVDC transmission), environmental (wastewater cleaning, bio-decontamination, sterilization), measurement (EMC tests, element analysis via plasma generation) or emerging (3-D printing, applied physics) applications, to name a few.

In recent years, there have been great advances in the development of high voltage output power supplies with the emergence of new power devices (SiC and GaN), the use of more and more digital control circuits (DSPs and FPGAs), and the decrease in size and weight in high-voltage transformers: high frequency operation or new isolation materials.

This Special Issue seeks to publish a collection of articles that address the latest developments in high voltage power supplies.

Topics of interest include but are not limited to:

  • Medical applications;
  • Industrial applications;
  • Pollution control;
  • Resonant topology;
  • Multilevel topology;
  • New control strategies;
  • New power devices;
  • High-voltage devices;
  • High-voltage power transformers.
Prof. Dr. Pedro J. Villegas
Prof. Dr. Juan A. Martín-Ramos
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. Electronics 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 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

  • high voltage
  • multilevel
  • resonant converter
  • SiC
  • GaN
  • digital control
  • high-voltage transformers

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Published Papers (4 papers)

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Research

18 pages, 72993 KiB  
Article
A Parallel Resonant Converter Polynomial Model Implemented in a Digital Signal Controller
by Evode Rwamurangwa, Juan Díaz González, Pedro José Villegas Saiz, Juan Antonio Martín-Ramos and Alberto Martin Pernía
Electronics 2022, 11(7), 1085; https://doi.org/10.3390/electronics11071085 - 30 Mar 2022
Cited by 3 | Viewed by 1933
Abstract
Due to their exceptional performance in coping with large variations in output voltage and current, parallel resonant converters (PRC) are commonly used in high-voltage applications. The incorporation of step-up transformer parasitic components as part of a power topology, on the right duty and [...] Read more.
Due to their exceptional performance in coping with large variations in output voltage and current, parallel resonant converters (PRC) are commonly used in high-voltage applications. The incorporation of step-up transformer parasitic components as part of a power topology, on the right duty and a suitable switching frequency, determines the high efficiency and wide variety of applications with PRC. Switching losses are reduced in the same topology by tracking and running on the optimum mode for each power and voltage by a set frequency and duty. The PRC’s static model behaviors, under optimum operating circumstances, are illustrated. The equivalent polynomial model is used to quickly compute the switching frequency and duty cycle required to achieve the converter’s desired output voltage and power. The polynomial model is simple and easy to implement in any form of a digital signal controller (DSC). Normalized parameters are used to widen the operational range and generalize the model. This also offers the essential protection against current and voltage spikes. The work in progress depicts the specific procedures involved in developing a polynomial model. The normalized equations provide a graphical description of the static model, from which the graphical representation of the polynomial are derived. Hence, polynomial equations are obtained. This paper describes the PRC static model, how to convert it to a polynomial model, how to validate it with MATLAB-Simulink, how to program F28335 using Simulink, and how to use it in practice. Full article
(This article belongs to the Special Issue High Voltage Power Supplies)
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18 pages, 7764 KiB  
Article
High-Voltage LC-Parallel Resonant Converter with Current Control to Detect Metal Pollutants in Water through Glow-Discharge Plasma
by Pedro J. Villegas, Daniel González Castro, Juan A. Martínez-Esteban, David Blanco Fernández, Germán Marcos-Robredo and Juan A. Martín-Ramos
Electronics 2022, 11(4), 644; https://doi.org/10.3390/electronics11040644 - 18 Feb 2022
Viewed by 2326
Abstract
This paper presents a high-voltage power source to produce glow-discharge plasma in the frame of a specific application. The load has two well-differentiated types of behavior. To start the system, it is necessary to apply a high voltage, up to 15 kV, to [...] Read more.
This paper presents a high-voltage power source to produce glow-discharge plasma in the frame of a specific application. The load has two well-differentiated types of behavior. To start the system, it is necessary to apply a high voltage, up to 15 kV, to produce air-dielectric breakdown. Before that, the output current is zero. Contrarily, under steady state, the output voltage is smaller (a few hundred volts) while the load requires current-source behavior to maintain a constant glow in the plasma. The amount of current must be selectable by the operator in the range 50–180 mA. Therefore, very different voltage gains are required, and they cannot be easily attained by a single power stage. This work describes why the LC-parallel resonant topology is a good single stage alternative to solve the problem, and shows how to make the design. The step-up transformer is the key component of the converter. It provides galvanic isolation and adapts the voltage gain to the most favorable region of the LC topology, but it also introduces non-avoidable reactive components for the resonant net, determining their shape and, to some extent, their magnitude. In the paper, the transformer’s constructive details receive special attention, with discussion of its model. The experimental dynamic tests, carried out to design the control, show load behavior that resembles negative resistance. This fact makes any control loop prone to instability. To compensate this effect, a resistive ballast is proposed, eliminating its impact on efficiency with a novel filter design, based on an inductor, connected in series with the load beyond the voltage-clamping capacitor. The analysis includes a mathematical model of the filtering capacitor discharge through the inductor during the breakdown transient. The model provides insight into the dimensions of the inductor, to limit the discharge current peak and to analyze the overall performance on steady state. Another detail addressed is the balance among total weight, efficiency and autonomy, which appears if the filter inductor is substituted for a larger battery in autonomous operation. Finally, a comprehensive set of experimental results on the real load illustrate the performance of the power source, showing waveforms at breakdown and at steady state (for different output currents). Additionally, the detector’s constructive principles are described and its experimental performance is explored, showing results with two different types of metallic pollutants in water. Full article
(This article belongs to the Special Issue High Voltage Power Supplies)
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16 pages, 12540 KiB  
Article
A Complete Control System for a High Voltage Converter in an Electrostatic Precipitator
by Fernando Jesús García Díaz, Juan Díaz, Jorge García, Alberto M. Pernía and Pedro J. Villegas
Electronics 2021, 10(13), 1554; https://doi.org/10.3390/electronics10131554 - 27 Jun 2021
Cited by 4 | Viewed by 7464
Abstract
Nowadays, the emission of pollutant particles is a global problem in terms of limiting pollution in industries, as well as greenhouse gases emissions. There are different ways to filter undesired particles, such as carbon air filters, chemical washing, and so on. One of [...] Read more.
Nowadays, the emission of pollutant particles is a global problem in terms of limiting pollution in industries, as well as greenhouse gases emissions. There are different ways to filter undesired particles, such as carbon air filters, chemical washing, and so on. One of the most popular techniques is the use of electrostatic precipitators: The operation mode is based in attracting particles using electrostatic forces. In order to do that, it is necessary to use a high-voltage converter, with a relative complex control. This article deals with the design of a complete platform to control not only these kind of converters, but also those converters based on the full-bridge power topology. Full article
(This article belongs to the Special Issue High Voltage Power Supplies)
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14 pages, 9284 KiB  
Article
Portable DC Supply Based on SiC Power Devices for High-Voltage Marx Generator
by Jacek Rąbkowski, Andrzej Łasica, Mariusz Zdanowski, Grzegorz Wrona and Jacek Starzyński
Electronics 2021, 10(3), 313; https://doi.org/10.3390/electronics10030313 - 28 Jan 2021
Cited by 13 | Viewed by 3674
Abstract
The paper describes major issues related to the design of a portable SiC-based DC supply developed for evaluation of a high-voltage Marx generator. This generator is developed to be a part of an electromagnetic cannon providing very high voltage and current pulses aiming [...] Read more.
The paper describes major issues related to the design of a portable SiC-based DC supply developed for evaluation of a high-voltage Marx generator. This generator is developed to be a part of an electromagnetic cannon providing very high voltage and current pulses aiming at the destruction of electronics equipment in a specific area. The portable DC supply offers a very high voltage gain: input voltage is 24 V, while the generator requires supply voltages up to 50 kV. Thus, the system contains two stages designed on the basis of SiC power devices operating with frequencies up to 100 kHz. At first, the input voltage is boosted up to 400 V by a non-isolated double-boost converter, and then a resonant DC-DC converter with a special transformer elevates the voltage to the required level. In the paper, the main components of the laboratory setup are presented, and experimental results of the DC supply and whole system are also shown. Full article
(This article belongs to the Special Issue High Voltage Power Supplies)
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