Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Space Station Freedom Electrical Performance Model
Author: Solar Array Electrical Performance Assessment for Space Station Freedom
Author: Bryan K. SmithSystem Performance Predictions for Space Station Freedom's Electric Power System
Author: Validation of International Space Station Electrical Performance Model Via On-Orbit Telemetry
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781721513642
Category :
Languages : en
Pages : 26
Book Description
The first U.S. power module on International Space Station (ISS) was activated in December 2000. Comprised of solar arrays, nickel-hydrogen (NiH2) batteries, and a direct current power management and distribution (PMAD) system, the electric power system (EPS) supplies power to housekeeping and user electrical loads. Modeling EPS performance is needed for several reasons, but primarily to assess near-term planned and off-nominal operations and because the EPS configuration changes over the life of the ISS. The System Power Analysis for Capability Evaluation (SPACE) computer code is used to assess the ISS EPS performance. This paper describes the process of validating the SPACE EPS model via ISS on-orbit telemetry. To accomplish this goal, telemetry was first used to correct assumptions and component models in SPACE. Then on-orbit data was directly input to SPACE to facilitate comparing model predictions to telemetry. It will be shown that SPACE accurately predicts on-orbit component and system performance. For example, battery state-of-charge was predicted to within 0.6 percentage points over a 0 to 100 percent scale and solar array current was predicted to within a root mean square (RMS) error of 5.1 Amps out of a typical maximum of 220 Amps. First, SPACE model predictions are compared to telemetry for the ISS EPS components: solar arrays, NiH2 batteries, and the PMAD system. Second, SPACE predictions for the overall performance of the ISS EPS are compared to telemetry and again demonstrate model accuracy. Jannette, Anthony G. and Hojnicki, Jeffrey S. and McKissock, David B. and Fincannon, James and Kerslake, Thomas W. and Rodriguez, Carlos D. Glenn Research Center NASA/TM-2002-211803, E-13498, NAS 1.15:211803, IECEC-2002-20007
Electrical Performance of the International Space Station U.S. Photovoltaic Array During Bifacial Illumination
Author: Large Space Structures & Systems in the Space Station Era
Author: Publisher:
ISBN:
Category : Large space structures (Astronautics)
Languages : en
Pages : 700
Book Description
Large Space Structures & Systems in the Space Station Era
Author: Publisher:
ISBN:
Category : Large space structures (Astronautics)
Languages : en
Pages : 368
Book Description
Scientific and Technical Aerospace Reports
Author: Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 842
Book Description
Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 840
Book Description