Results 71 to 80 of about 4,073 (93)
2012 IEEE International Symposium on Circuits and Systems (ISCAS), 2012 This paper proposes a novel electrical power system architecture capable to efficiently transfer energy from a solar generator to high power electric thrusters of a spacecraft. The architecture is based on a maximum power point tracker that acts on a DC/DC converter connected between a subsection of the solar generator and the thrusters.
Federico Bizzarri +4 more
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The synergy of spacecraft electric propulsion and power
Space technology and applications international forum (STAIF - 97), 1997The combination of spacecraft electrical power and on-board propulsion can consume as much as three-fourths of the mass of a spacecraft depending upon the mission. With the current emphasis on reducing costs (including launch vehicle costs) and on reducing the mass of future spacecraft it is apparent that the use of advanced spacecraft electrical power
Gary L. Bennett +4 more
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Acta Astronautica, 2021
Abstract Outer solar system exploration by a small spacecraft using a solar power sail is investigated. A solar power sail is an extended form of a solar sail that has thin-film solar cells attached over its surface. This concept makes it possible to generate a large amount of power with less weight resources than conventional means.
Yuki Takao +3 more
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Abstract Outer solar system exploration by a small spacecraft using a solar power sail is investigated. A solar power sail is an extended form of a solar sail that has thin-film solar cells attached over its surface. This concept makes it possible to generate a large amount of power with less weight resources than conventional means.
Yuki Takao +3 more
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Configurable High Voltage Power Supply for Full Electric Propulsion Spacecraft
2019 European Space Power Conference (ESPC), 2019The present paper describes several technological topics featured in a new prototype of anode/beam supply for 5 kW Power Processing Unit (PPU), dedicated to be compatible with many thruster types and operating modes thanks to a configurable output stage and wide output voltage range.
Marc Bekemans +3 more
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Evaluation of cryogenic power conditioning subsystems for electric propulsion spacecraft
IECEC 96. Proceedings of the 31st Intersociety Energy Conversion Engineering Conference, 2002The power requirement of vehicles designed to transport cargo supporting a piloted expedition to Mars is in the range of megawatts. Therefore, it is imperative that the megawatt class power processing unit designed for high-power nuclear electric propulsion vehicles using turboalternators and advanced magnetoplasmadynamic (MPD) thrusters should be such
R.S.L. Das, S. Krauthamer, R.H. Frisbee
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Grounding Aspects of Power Processing Units for Electric Propulsion Onboard Spacecrafts
10th International Energy Conversion Engineering Conference, 2012The accommodation of Electric Propulsion and the associated Power Processing Units (PPU) within a Spacecraft must lead to an integrated system providing full function and performance. An important aspect is the grounding of the electric propulsion system.
Matthias Gollor, Benjamin Fallis
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Solar System Research, 2016
The problem of optimizing the interplanetary trajectories of a spacecraft (SC) with a solar electric propulsion system (SEPS) is examined. The problem of investigating the permissible power minimum of the solar electric propulsion power plant required for a successful flight is studied. Permissible ranges of thrust and exhaust velocity are analyzed for
A. V. Ivanyukhin, V. G. Petukhov
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The problem of optimizing the interplanetary trajectories of a spacecraft (SC) with a solar electric propulsion system (SEPS) is examined. The problem of investigating the permissible power minimum of the solar electric propulsion power plant required for a successful flight is studied. Permissible ranges of thrust and exhaust velocity are analyzed for
A. V. Ivanyukhin, V. G. Petukhov
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Three-Axis Attitude Control for Solar-Powered Electric Propulsion Spacecraft
SAE Technical Paper Series, 1974<div class="htmlview paragraph">Solar electric propulsion (SEP) provides a unique capability for interplanetary missions, although spacecraft designs based on solar power, developed by large flexible arrays, lead to formidable vehicle interactions with attitude control.
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2007 IEEE Power Electronics Specialists Conference, 2007
This paper describes a baseline solution of a Power Conditioning and Distribution Unit (PCDU) for Electrical Propulsion (EP) systems. The solution adopted uses two high efficiency, low-mass power regulators; a solar array regulator (SAR) based on the classical Sequential Switching Shunt Regulator with Maximum Power Point Tracking (MPPT) capability ...
A. Garrigos +7 more
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This paper describes a baseline solution of a Power Conditioning and Distribution Unit (PCDU) for Electrical Propulsion (EP) systems. The solution adopted uses two high efficiency, low-mass power regulators; a solar array regulator (SAR) based on the classical Sequential Switching Shunt Regulator with Maximum Power Point Tracking (MPPT) capability ...
A. Garrigos +7 more
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Accommodation Aspects of Electric Propulsion with Power Processing Units and the Spacecraft
9th Annual International Energy Conversion Engineering Conference, 2011The accommodation of Electric Propulsion and the associated Power Processing Units within a Spacecraft must lead to an integrated system providing full function and performance. This process starts with a proper specification of the electrical interface between thrusters and electronics, the handling of high voltages in a distributed harness, the ...
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