The Electromagnetic Compatibility (Emc) Design Challenge for Scientific Spacecraft Powered by a Stirling Power Converter

The Electromagnetic Compatibility (Emc) Design Challenge for Scientific Spacecraft Powered by a Stirling Power Converter PDF

Author: National Aeronautics and Space Administration (NASA)

Publisher: Createspace Independent Publishing Platform

Published: 2018-06-19

Total Pages: 24

ISBN-13: 9781721284344

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A 55 We free-piston Stirling Technology Demonstration Convertor (TDC) has been tested as part of an evaluation to determine its feasibility as a means for significantly reducing the amount of radioactive material required compared to Radioisotope Thermoelectric Generators (RTGs) to support long-term space science missions. Measurements were made to quantify the low frequency magnetic and electric fields radiated from the Stirling's 80 Hertz (Hz) linear alternator and control electronics in order to determine the magnitude of reduction that will be required to protect sensitive field sensors aboard some science missions. One identified "Solar Probe" mission requires a 100 dB reduction in the low frequency magnetic field over typical military standard design limits, to protect its plasma wave sensor. This paper discusses the electromagnetic interference (EMI) control options relative to the physical design impacts for this power system, composed of 3 basic electrical elements. They are (1) the Stirling Power Convertor with its linear alternator, (2) the power switching and control electronics to convert the 90 V, 80 Hz alternator output to DC for the use of the spacecraft, and (3) the interconnecting wiring including any instrumentation to monitor and control items 1 and 2. Sargent, Noel B. Glenn Research Center NASA/CR-2001-210945, E-12799, IECEC2001-CT-37, NAS 1.26:210945

Electromagnetic Compatibility for Space Systems Design

Electromagnetic Compatibility for Space Systems Design PDF

Author: Christos D. Nikolopoulos

Publisher:

Published: 2017-12-08

Total Pages: 320

ISBN-13: 9781522554158

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"This book provides theoretical and practical background in order to model and design space systems with regard to immunity of spacecraft components and the elimination of electromagnetic interference. It provides insights and support executives concerned with the management of expertise, knowledge, information and organizational development in different types of work communities and environments"--

Spacecraft Power Systems

Spacecraft Power Systems PDF

Author: Mukund R. Patel

Publisher: CRC Press

Published: 2004-11-29

Total Pages: 734

ISBN-13: 1420038214

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The power systems of space vehicles have undergone significant development during the previous decade, and will continue to do so in the immediate future. Until now, except for the scattered results of conferences and a few publications with sketchy coverage, no single volume has covered the entire spectrum of the subject. Spacecraft Power

Space Power Systems

Space Power Systems PDF

Author: Nathan Snyder

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 651

ISBN-13: 0323143962

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Space Power Systems covers systems based on the three primary sources of energy of practical value, namely, solar, nuclear, and chemical sources. This book is organized into four parts encompassing 32 chapters that also explore the requirements for space power. Part A presents the general aspects of solar cell power systems based on the work performed for US space vehicles that are to be placed in orbit. This part specifically considers a graph showing the variation of characteristic parameters of the solar cell battery storage system as a function of flight altitude. Considerable chapters in this part are devoted to the solar cell power plant for the space vehicles ADVENT, RANGER, TIROS, and TRANSIT. The remaining chapters provide a detailed analysis of the physics and engineering of solar panel and solar mirror design. Part B contains a series of papers involving the various aspects of the Atomic Energy Commission SNAP (Systems for Nuclear Auxiliary Power) program. Many details are presented for the 3 kw, liquid metal, turbo-machinery SNAP II power systems covering subjects from the basic concept through vehicle integration and safety aspects. Significant chapters in this part discuss the compact and apparently highly reliable radioisotope thermoelectric generator. Part C highlights the methods of storing and expelling high energy cryogenic fuels, which can provide from two to five times more energy per unit weight than the silver-zinc primary battery. Part D provides an interesting and useful estimation of the many requirements that are likely to become firm for space vehicles. Space vehicle engineers, designers, and researchers will find this book invaluable.

Technology for Small Spacecraft

Technology for Small Spacecraft PDF

Author: National Research Council

Publisher: National Academies Press

Published: 1994-01-01

Total Pages: 154

ISBN-13: 030908363X

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This book reviews the U.S. National Aeronautics and Space Administration's (NASA) small spacecraft technology development. Included are assessments of NASA's technology priorities for relevance to small spacecraft and identification of technology gaps and overlaps. The volume also examines the small spacecraft technology programs of other government agencies and assesses technology efforts in industry.