Publication Date:
2016-06-07
Description:
A mathematical model is described which predicts the service life of nickel-cadmium batteries designed for geosynchronous orbit satellites. Regression analysis technique is used to analyze orbital data on second generation trickle charged batteries. The model gives average cell voltage as a function of design parameters, operating parameters and time. The voltage model has the properties of providing a good fit to the data, good predictive capability, and agreement with known battery performance characteristics. Average cell voltage can be predicted to within 0.02 volts for up to 8 years. This modeling shows that these batteries will operate reliably for 10 years. Third-generation batteries are expected to operate even longer.
Keywords:
ELECTRONICS AND ELECTRICAL ENGINEERING
Type:
NASA. Goddard Space Flight Center The 1983 Goddard Space Flight Center Battery Workshop; p 263-273
Format:
application/pdf
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