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[IEEE 2017 5th International Conference on Mechanical, Automotive and Materials Engineering (CMAME) - Guangzhou (2017.8.1-2017.8.3)] 2017 5th International Conference on Mechanical, Automotive and Materials Engineering (CMAME) - Modeling and Application of Output Current of the Solar Array for Satellite in Sun Synchronous Orbit
摘要： The output current of the solar array for satellite in sun synchronous orbit is a critical parameter for performance in-orbit analyzing. In order to analysis the rules of the solar array output current accurately, some influential factors, such as the incidence angle of the sun, the temperature of the solar array, the earth-sun distance factor and the fixed offset angle to the sun of solar wing, are comprehensively researched. Then a model of output current is established. Results in-orbit show that the model has high accuracy, which can provide a reference for optimization design of satellite solar array.
关键词： the solar array,modeling,output current,sun synchronous orbit,satellite
更新于2025-09-23 15:23:52
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[IEEE 2018 IEEE Energy Conversion Congress and Exposition (ECCE) - Portland, OR, USA (2018.9.23-2018.9.27)] 2018 IEEE Energy Conversion Congress and Exposition (ECCE) - Universal Control Strategy using Operating Point Projection Technique for Solar Array Hardware Emulation
摘要： Solar array simulator (SAS) is a special DC power supply that regulates the output voltage or current to emulate characteristics of photovoltaic (PV) panels. Especially, the control of SAS is a challenging task due to the nonlinearity in the output curve, which is dependent on irradiance as well as temperature and is determined by panel materials. Conventionally, both current-mode control and voltage-mode control should be alternated by partitioning the operating curve into multiple sections, which is not only for the measurement noise problem with the feedback sensing but also for the control stability issue near the maximum power point. However, the occurrence of transition among different controllers may deteriorate the overall performance. To eliminate the mode transitions, a novel single controller scheme has been introduced in this paper, where the operating point projection technique enables simple, smooth and numerically stable control. Theoretical consideration on the loop stability issue is discussed and the performance is verified experimentally for the emulation of a PV panel data in view of stability and response speed.
关键词： Photovoltaic systems,Solar array simulator,Feedback control,Solar power
更新于2025-09-23 15:22:29
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[IEEE 2018 10th International Conference on Modelling, Identification and Control (ICMIC) - Guiyang (2018.7.2-2018.7.4)] 2018 10th International Conference on Modelling, Identification and Control (ICMIC) - Study on the Influence of Solar Array Damage on Satellite Power System
摘要： The solar array output model under arbitrary damage condition is established and a semi-physical simulation platform is built, which are used to study the influence of solar array damage on satellite power system. The experimental results show that the solar array damage range, damage degree, and satellite working mode influence the remaining service life of satellite power system. When the solar array damage range and satellite working mode are determined, the rule between remaining service life of satellite power system and solar array damage degree can be summarized as 'three areas, two key points'.
关键词： solar array damage,satellite power system,semi-physical simulation,damage influence
更新于2025-09-23 15:22:29
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MAFSA: Mars Autonomous and Foldable Solar Array
摘要： As we look toward Mars for the next frontier of space exploration and colonization, there is a need to prepare supporting technologies that will allow humans to live on the Red Planet for an extended duration. This article explains the design for a low-mass, autonomously deployable solar array that generates the required power for scientific, habitat, and in situ resource utilization functions necessary for humans to exist on Mars. The Mars Autonomous and Foldable Solar Array (MAFSA) can fit within a 10 m3 stowed volume and deploy to a 1,000 m2 surface with a mass of <1,500 kg. The Triangular Rollable and Collapsible booms, developed by Roccor, are the foundation of the design. Their ability to wrap in a stowed configuration allows for a stowage performance that rivals inflatable architectures and still provides a similar structural performance to that of rigid booms when deployed. While MAFSA is currently intended for Mars use, it can be equally effective on the Moon where inflatable designs are unable to utilize an atmosphere.
关键词： deployable systems,Mars,solar array
更新于2025-09-19 17:15:36
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Selection of Commercial-Off-the-Shelf Antistatic Coating and Its Applicability for Space-Use Solar Arrays
摘要： In recent years, the power generation requirement of spacecrafts has increased in order to load them with many mission devices and to extend their lifetime, hence, high voltages are used. However, such high voltages can cause electrostatic discharges on solar arrays, resulting in damage to the solar arrays. Therefore, we use an antistatic coating, which mitigates the surface charging on solar cells, in order to prevent the discharge. It is considered that an antistatic coating can mitigate surface charging and can prevent discharges on solar cells. The purpose of this research is to develop a coating to mitigate the surface charging applicable to geostationary Earth orbit satellites. We selected a candidate coating with the required surface resistivity and vacuum resistance. Furthermore, we selected a commercial-off-the-shelf antistatic coating after considering the experimental results of charging mitigation performance when simulating the charging condition in space. The candidate agent was coated on a conventional solar array coupon panel, and the charging mitigation performance of the latter was evaluated. We have confirmed a dramatic improvement in charging mitigation performance with this coated conventional solar array coupon.
关键词： Commercial-Off-the-Shelf,Antistatic Coating,Electrostatic Charging and Discharging,Solar Array
更新于2025-09-19 17:15:36
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Concept for a Gossamer solar power array using thin-film photovoltaics
摘要： In recent years, the German Aerospace Center (DLR) developed Gossamer deployment systems in different projects. As power requirements of spacecraft are getting more and more demanding, DLR recently focused on the development of new deployable photovoltaic (PV) technologies that are suitable for generating 10’s of kW per array. Possible space applications that may also require high power supply are missions using electric propulsion such as interplanetary missions, placing of geostationary (GEO) satellites in their orbit or even more future oriented as space tugs or lightweight power generation on extra-terrestrial infrastructures. The paper gives an overview about a feasibility study for flexible solar arrays based on new thin-film photovoltaics. It is expected that the combination of new thin-film PV technologies, e.g., copper indium gallium selenide (CIGS) cells or gallium–arsenide (GaAs) cells, together with Gossamer deployment technologies, could significantly increase the power availability for spacecraft. Based on a requirement, analysis system concepts were evaluated. A focus is on the potential of CIGS PV combined with a two-dimensional deployment of the array and DLR’s coilable carbon fibre-reinforced plastic (CFRP) booms. Therefore, a concept based on crossed booms with a foldable PV membrane is considered as baseline for further developments. The array consists of rectangular PV generators that are interconnected by flexible printed circuit board (PCB) harness. By a double-folding technique, these generators are laid on top of each other in such that the membrane can be extracted from its stowing box during the deployment in a controlled manner. Considering constantly increasing efficiencies of the CIGS PV combined with Gossamer structures, there is clear potential of reaching a very high specific power value exceeding that of conventional PV systems. Furthermore, the CIGS PV appears to be more radiation resistant and has already reached more than 21% efficiency in laboratories. Such efficiencies are expected to be achieved in the near future in a standard manufacturing process. However, flexible, thin-film GaAs cells are also subject of consideration within GoSolAr. With this prospect, DLR’s research has the goal to develop a Gossamer Solar Array (GoSolAr) to exploit the described potential.
关键词： Deployable structure,Membrane structure,Solar array,Thin-film photovoltaic,Deployment system
更新于2025-09-19 17:13:59
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[IEEE 2019 European Space Power Conference (ESPC) - Juan-les-Pins, France (2019.9.30-2019.10.4)] 2019 European Space Power Conference (ESPC) - The JUICE Photovoltaic Assembly - from prequalification coupons to full-scale qualification model
摘要： In the frame of the JUICE (JUpiter ICy moon Explorer) mission, Leonardo Spa has been selected as PVA supplier of the Solar Array module. Due to the demanding environmental and general requirements, it was necessary to develop specific technological solutions to fulfill the low temperature, low sun intensity and very high radiation levels linked to the Jovian specific environment. The paper illustrates this development process, verified with engineering coupons and then applied to full-scale qualification model, which test campaign is currently ongoing.
关键词： Solar cell,Solar panel,qualification,Solar Array,JUICE
更新于2025-09-16 10:30:52
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[IEEE 2018 Fourth International Conference on Advances in Electrical, Electronics, Information, Communication and Bio-Informatics (AEEICB) - Chennai (2018.2.27-2018.2.28)] 2018 Fourth International Conference on Advances in Electrical, Electronics, Information, Communication and Bio-Informatics (AEEICB) - PV Modules Based Grid Connected System Using Matlab Simulation
摘要： The Photovoltaic (PV) system can supply electric energy to the load by direct conversion of solar energy through photovoltaic (PV) effect. The process in which solar energy is converted into electrical energy is known as photovoltaic effect. It is depend on the different circumstance by different equations of current and voltage based on mathematical modeling. It gives current and voltage of PV module by different no. of cells and variation in irradiation and temperature. The PV cell output voltage boosts-up by the boost converter and the AC grid by DC/AC converter (inverter) control the power. This module can be further connected to the utility grid connected system for commercial and industrial application. It is provides precise modeling of P-V characteristics of solar system.
关键词： Solar Cell,Power Inverter,Photovoltaic systems,photovoltaic system,Solar Array,Solar Energy,modeling
更新于2025-09-10 09:29:36
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Discharges of plasma induced by hypervelocity impact on the solar array with different substrate structures1
摘要： The purpose of the paper is to investigate the discharge of the plasma generated by a projectile hypervelocity impact on solar array with three kinds of different substrates at the 60? incidence angle and the external applied voltage of 100 voltage. Four sets of experiments were performed to impact solar arrays with CFRP Aluminum honeycomb sandwich substrate, Aluminum honeycomb sandwich substrate and the aluminum substrate by using two-stage light gas gun loading system and discharge measurement system established. Experimental results showed that discharge voltage and discharge current of the solar array with CFRP Aluminum honeycomb sandwich substrate are the most strongest among the solar array with CFRP Aluminum honeycomb sandwich substrate, Aluminum honeycomb sandwich substrate and the aluminum substrate. This work will be helpful to improve the material and substrate’ structure of the solar arrays in spacecrafts.
关键词： Hypervelocity impact,solar array with different substrate,discharge voltage,plasma,discharge current
更新于2025-09-04 15:30:14