Intermediate design and analysis of the PANSAT electrical power subsystem. Master's thesis

Technical Report · Tue Mar 01 04:00:00 EST 1994

OSTI ID:7193185

Hand, G F

This thesis examined three primary components of the electrical power subsystem (EPS) for the Petite Amateur Navy Satellite (PANSAT): (1) the solar array; (2) the power conditioning and control subsystem (PCCS); and (3) the batteries. The emphasis of this thesis was to analyze the output performance of the solar array. Additionally, the derivation of the hybrid PCCS proposed for the EPS was examined and the use of Nickel-Cadmium batteries as a candidate for the secondary power source was discussed. The investigation of the solar array's output performance led to PANSAM (PANSAT Solar Array Model), a computer model which simulates the power output of the solar array. The user can specify the sun's declination, the orbit's inclination, and the satellite's orientation and rate of rotation about each of its three axes. Once a simulation is complete, PANSAM provides the effective surface area illuminated by the sun, and the output current and power. The average effective area determined by PANSAM was 17.6% less than the 1259/sq cm originally proposed by the PANSAT staff. This contributed to a substantial reduction in predicted power. A preliminary transient thermal analysis of PANSAT was also conducted to provide temperature data for PANSAM.

• Research Organization: Naval Postgraduate School, Monterey, CA (United States)
• OSTI ID: 7193185
• Report Number(s): AD-A-283610/4/XAB
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140600* -- Solar Energy-- Photovoltaic Power Systems
COMPUTER CODES
COMPUTERIZED SIMULATION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRONIC EQUIPMENT
EQUIPMENT
METAL-METAL OXIDE BATTERIES
NICKEL-CADMIUM BATTERIES
P CODES
PERFORMANCE
POWER SUPPLIES
SATELLITES
SIMULATION
SOLAR CELL ARRAYS
SOLAR EQUIPMENT
SPACECRAFT POWER SUPPLIES
THERMAL ANALYSIS