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NASCAP modelling of high-voltage power system interactions with space charged-particle environmentsThe NASA Charging Analyzer Program (NASCAP), an engineering tool capable of analyzing the impact of the charged particle environment on spacecraft surfaces and systems, is described. NASCAP is a quasi-static computational program which analyzes the charging of a 3-dimensional complex body as a function of time and system-generated voltages for given space environmental conditions. The material properties of the surfaces are taken into account; the surface potentials, low energy sheath, potential distribution in space and particle trajectories are calculated. An application of NASCAP to a simple space solar power station consisting of two 6 m by 18 m solar array wings surrounding a central body is presented. Each solar array wing is considered to be divided into three regions operating at 2000 volts. Results of NASCAP analysis of the system for a normal environment and a moderate geomagnetic substorm environment are discussed.
Document ID
19790055793
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Stevens, N. J.
(NASA Lewis Research Center Cleveland, OH, United States)
Roche, J. C.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Mandell, M. J.
(System, Science and Software, La Jolla Calif., United States)
Date Acquired
August 9, 2013
Publication Date
February 1, 1979
Subject Category
Spacecraft Design, Testing And Performance
Meeting Information
Meeting: Institute of Electrical and Electronics Engineers, High Voltage Workshop
Location: Anaheim, CA
Start Date: February 26, 1979
End Date: February 27, 1979
Sponsors: Institute of Electrical and Electronics Engineers
Accession Number
79A39806
Distribution Limits
Public
Copyright
Other

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