Solar array switching power managementSolar array power switching concepts are explored for a 250 kWe manned LEO platform, a 50-250 kWe load for an orbit transfer vehicle (OTV), and an unmanned platform with a 50 kWe load in GEO. A solar array switching power management (SASPM) system is under study to satisfy the switching demands. Direct connections to arrays would be implemented for voltage regulations, power distribution, and the capability of reconfiguring the arrays to meet requirements. Mission characteristics that would require the power sources were explored. The LEO platform was projected to use a concentrator, have no reconfigurability, use 250 NiH2 batteries, supply 80-0 Vdc to an ion drive, and have a 20-30 yr life. Both GEO and OTV arrays were planar, would feature reconfigurability, and supply 800 Vdc to an ion drive. NiH2 batteries would be on the OTV, while the GEO spacecraft would use AgH2 cells. A block diagram of the basic switching configuration is presented.
Document ID
19830045914
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Cassinelli, J. E. (TRW Defense and Space Systems Group Redondo Beach, CA, United States)
Smith, L. D. (TRW Defense and Space Systems Group Redondo Beach, CA, United States)
Valgora, M. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Spacecraft Propulsion And Power
Meeting Information
Meeting: IECEC ''82; Seventeenth Intersociety Energy Conversion Engineering Conference