STC/DBS Power subsystem control loop stability analysis

Conference · Wed Aug 01 04:00:00 EDT 1984 · Proc., Intersoc. Energy Convers. Eng. Conf.; (United States)

OSTI ID:6042271

Peck, S R; Devaux, R N

Many types of solar array regulation schemes are utilized throughout the spacecraft design community. Ensuring adequate control loop stability margins while achieving acceptable transient response performance is a complex and difficult task due to the extremely large number of variables and nonlinearities inherent in these systems. In recent years significant improvements in computer software have made this task more manageable and enabled a better understanding of the effects of system parameters. This paper describes the analytical approach utilized to evaluate and optimize the control loops for two partial shunt systems used on Satellite Television Corporation's Direct Broadcast Satellite presently in development at RCA Astro-Electronics. The 100V payload bus regulator is a linear sequential partial shunt system, and the 35.3V housekeeping bus utilizes a linear parallel partial shunt approach. For each case, detailed models of the solar arrays, control electronics, and spacecraft loads were developed and then combined to simulate the complete system. The analytical results have been and/or are being verified by test. The results will be verified with illuminated solar arrays during full-up spacecraft systems testing.

• Research Organization: Satellite Television Corp., Princeton Junction, New Jersey
• OSTI ID: 6042271
• Report Number(s): CONF-840804-
• Conference Information: Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Journal Volume: 1
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140600* -- Solar Energy-- Photovoltaic Power Systems
COMPUTERIZED CONTROL SYSTEMS
COMPUTERIZED SIMULATION
CONTROL SYSTEMS
ELECTRONIC EQUIPMENT
EQUIPMENT
PERFORMANCE
PERFORMANCE TESTING
PHOTOVOLTAIC POWER SUPPLIES
POWER SUPPLIES
SATELLITES
SIMULATION
SOLAR CELL ARRAYS
SOLAR EQUIPMENT
SPACECRAFT POWER SUPPLIES
STABILITY
TESTING
TRANSIENTS