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Advanced Space Power Systems
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Advanced Space Power Systems

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

Deadline for manuscript submissions: closed (20 July 2021) | Viewed by 11559

Special Issue Editors

Dr. Pablo Fernandez Miaja

E-Mail Website
Guest Editor
Power Supply Systems Group, Department of Electrical, Electronic, Computers and Systems Engineering, University of Oviedo, Oviedo, Asturias, Spain
Interests: power electronics; wide bandgap devices; space power systems
Dr. Enrique Maset Sancho

E-Mail Website
Guest Editor
Department of Electrical Engineering, University of Valencia, Valencia, Spain
Interests: power electronics; power semiconductors characterization; rad-hard devices; wide bandgap devices

Special Issue Information

Dear Colleagues,

Space power systems are a challenge to designers due to the harsh environment and reliability requirements they need to comply to. Additionally, their power sources are very limited. For these reasons, power electronics designs have some characteristics not usually found in terrestrial applications. Furthermore, some terrestrial designs could be interesting for space applications with the necessary adaptations.

This Special Issue covers electrical power systems for space applications. The topics include but are not limited to the following:

Electrical power management systems design methodology and optimization;

Direct energy transfer and DC/DC converters architectures and design for solar array Regulators;

DC/DC converters and other systems for non-solar energy transformation applications (e.g., thermoelectric systems, etc.);

Energy storage systems (battery cells, supercapacitors, etc.) and electronics to monitor, protect, and interface them;

Electrical distribution and protection systems;

Radiation testing of devices and systems including wide bandgap devices for power electronics;

Electrical power supply system design for platform (solar array drive electronics, actuator) systems (thermal knives, pyrotechnic systems, non-explosive actuators, magnetorquers driving, reaction wheels electronics, RF equipment, on-board data handling, etc. );

Electrical power supply system design for payloads (imaging equipment, sensitive instruments, etc.);

Electrical power supply system design for electrical propulsion including, high-power RF sources;

High-voltage designs, including travelling wave tubes, cathode supplies in electrical propulsion, and specialized payloads.

We hope that you are interested in contributing to this Special Issue.

Kind regards,

Dr. Pablo Fernandez Miaja
Dr. Enrique Maset Sancho
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

  • Space power systems
  • DC/DC converters for space
  • Radiation testing

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Published Papers (4 papers)

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Research

13 pages, 6056 KiB  
Article
Sequential Switching Shunt Regulator Parallel Power Processing Control for High Capacitance Solar Arrays
by José M. Blanes, José A. Carrasco, Ausiàs Garrigós, David Marroquí and Cristian Torres
Energies 2021, 14(2), 429; https://doi.org/10.3390/en14020429 - 14 Jan 2021
Cited by 5 | Viewed by 2526
Abstract
This paper presents a new control strategy for reducing the switching losses produced by the use of high parasitic capacitance solar arrays in the sequential switching shunt regulator. Instead of dividing the solar array into equal sections, the proposed strategy is based on [...] Read more.
This paper presents a new control strategy for reducing the switching losses produced by the use of high parasitic capacitance solar arrays in the sequential switching shunt regulator. Instead of dividing the solar array into equal sections, the proposed strategy is based on two different sections types, low-capacitance and high-capacitance ones. In order to reduce the switching losses and to maintain the original closed-loop response, a novel parallel power processing control strategy is implemented. With this new technique the low-capacitance sections are the only ones that switch at high frequency to regulate the bus while the high-capacitance sections are only connected or disconnected under high load power changes. In addition, the control closed loop delay associated to the time needed to charge the parasitic capacitance has been modelled and a controller modification is proposed to reduce AC performance degradation. Full article
(This article belongs to the Special Issue Advanced Space Power Systems)
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30 pages, 1739 KiB  
Article
Irradiation Flux Modelling for Thermal–Electrical Simulation of CubeSats: Orbit, Attitude and Radiation Integration
by Edemar Morsch Filho, Laio Oriel Seman, Cezar Antônio Rigo, Vicente de Paulo Nicolau, Raúl García Ovejero and Valderi Reis Quietinho Leithardt
Energies 2020, 13(24), 6691; https://doi.org/10.3390/en13246691 - 18 Dec 2020
Cited by 15 | Viewed by 3473
Abstract
During satellite development, engineers need to simulate and understand the satellite’s behavior in orbit and minimize failures or inadequate satellite operation. In this sense, one crucial assessment is the irradiance field, which impacts, for example, the power generation through the photovoltaic cells, as [...] Read more.
During satellite development, engineers need to simulate and understand the satellite’s behavior in orbit and minimize failures or inadequate satellite operation. In this sense, one crucial assessment is the irradiance field, which impacts, for example, the power generation through the photovoltaic cells, as well as rules the satellite’s thermal conditions. This good practice is also valid for CubeSat projects. This paper presents a numerical tool to explore typical irradiation scenarios for CubeSat missions by combining state-of-the-art models. Such a tool can provide the input estimation for software and hardware in the loop analysis for a given initial condition and predict it along with the satellite’s lifespan. Three main models will be considered to estimate the irradiation flux over a CubeSat, namely an orbit, an attitude, and a radiation source model, including solar, albedo, and infrared emitted by the Earth. A case study illustrating the tool’s abilities is presented for a typical CubeSats’ two-line element set (TLE) and five attitudes. Finally, a possible application of the tool as an input to a CubeSat task-scheduling is introduced. The results show that the complete model’s use has considerable differences from the simplified models sometimes used in the literature. Full article
(This article belongs to the Special Issue Advanced Space Power Systems)
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20 pages, 6807 KiB  
Article
Optimized Design of 1 MHz Intermediate Bus Converter Using GaN HEMT for Aerospace Applications
by Enrique Maset, Juan Bta. Ejea, Agustín Ferreres, José Luis Lizán, Jose Manuel Blanes, Esteban Sanchis-Kilders and Ausias Garrigós
Energies 2020, 13(24), 6583; https://doi.org/10.3390/en13246583 - 14 Dec 2020
Cited by 3 | Viewed by 2075
Abstract
This paper presents the possibility of using Gallium Nitride (GaN) high-electron-mobility transistors (HEMTs) instead of the conventional silicon metal oxide semiconductor field effect transistor (MOSFET) to implement a high-frequency intermediate bus converter (IBC) as part of a typical distributed power architecture used in [...] Read more.
This paper presents the possibility of using Gallium Nitride (GaN) high-electron-mobility transistors (HEMTs) instead of the conventional silicon metal oxide semiconductor field effect transistor (MOSFET) to implement a high-frequency intermediate bus converter (IBC) as part of a typical distributed power architecture used in a space power application. The results show that processing the power at greater frequencies is possible with a reduction in mass and without impacting the system efficiency. The proposed solution was experimentally validated by the implementation of a 1 MHz zero-voltage and zero-current switching (ZVZCS) current-fed half-bridge converter with synchronous rectification compared with the same converter using silicon as the standard technology on power switches and working at 100 kHz. In conclusion, the replacement of silicon (Si) transistors by GaN HEMTs is feasible, and GaN HEMTs are promising next-generation devices in the power electronics field and can coexist with silicon semiconductors, mainly in some radiation-intensive environments, such as power space converters. The best physical properties of GaN HEMTs, such as inherent radiation hardness, low on resistance and parasitic capacitances, allow them to switch at higher frequencies with high efficiency achieving higher power density. We present an optimized design procedure to guaranty the zero-voltage switching condition that enables the power density to be increased without a penalization of the efficiency. Full article
(This article belongs to the Special Issue Advanced Space Power Systems)
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12 pages, 557 KiB  
Article
An Analog Magnetic Isolator for Space Power Applications
by Pablo F. Miaja, Abraham Lopez and Manuel Arias
Energies 2020, 13(17), 4504; https://doi.org/10.3390/en13174504 - 1 Sep 2020
Cited by 5 | Viewed by 2724
Abstract
In power electronic applications, often a galvanic isolation barrier has to be passed. An example of this is the feedback control of isolated DC/DC converters where the secondary voltage has to be passed to the primary side where the control circuitry lies. For [...] Read more.
In power electronic applications, often a galvanic isolation barrier has to be passed. An example of this is the feedback control of isolated DC/DC converters where the secondary voltage has to be passed to the primary side where the control circuitry lies. For these applications, the use of optocouplers is well known in terrestrial applications. However, optocouplers tend to suffer degradation from the radiation damage induced by the space environment. For this reason, some space grade DC/DC converters use some form of magnetic feedback. In this paper, a magnetic analog isolator is presented. It will allow for passing an analog voltage through an isolation barrier by means of a magnetic transformer based circuit. It will be based on an LLC DC/DC converter so the gain between both sides of the isolator can be tuned. Design methodology will be presented so the circuit can be tailored for any foreseen application. In this paper, a simulation of its application in a Latching Current Limiter is presented. All the components will be discrete components which have a rad-hard version. A design example having a bandwidth around 20 kHz and a gain of 4.6 dB is shown in the Experimental Results sections to support the analysis. Full article
(This article belongs to the Special Issue Advanced Space Power Systems)
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