Hubble Space Telescope six-battery nickel-cadmium mission simulation test
Hubble Space Telescope six-battery nickel-cadmium mission simulation test
- New search for: Jackson, L.G.
- New search for: Bush, J.R. jun.
- New search for: Lanier, J.R. jun.
- New search for: Jackson, L.G.
- New search for: Bush, J.R. jun.
- New search for: Lanier, J.R. jun.
A simulation test of the six-battery nickel-cadmium mission to determine battery life and electrical power system (EPS) performance characteristics for the Hubble Space Telescope (HST) program, is described. The basic HST power system requirements are to provide power generation, energy storage, and EPS control and distribution for 2.5 years with the nickel-cadmium (NiCd) batteries at an end of life solar array of two years. Mission simulation life testing began in April of 1986, and the batteries have completed their 2.5 year mission requirement. Conditions as close as practical to the actual predicted mission profiles were used. These included solar array degradation, load variations, beta angle changes, temperature changes (with excursions to 10 degrees C), battery reconditioning, safemode simulations, and off-normal roll activities. Discounting system cycling interruptions caused by hardware, software, human error, and periodic updates and revisions, the HST EPS breadboard hardware operated continuously for 30 months and demonstrated the power system's ability to meet the HST requirement.
Document information
Hubble Space Telescope six-battery nickel-cadmium mission simulation test
Simulationstest mit Weltraumbetriebsbedingungen für die Ni-Cd-Batterien des Hubble-Weltraumteleskops
1989
5 Seiten, 3 Quellen
Conference paper
English
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