Adaptive control applied to Space Station attitude control systemThis paper presents an adaptive control approach to enhance the performance of current attitude control system used by the Space Station Freedom. The proposed control law was developed based on the direct adaptive control or model reference adaptive control scheme. Performance comparisons, subject to inertia variation, of the adaptive controller and the fixed-gain linear quadratic regulator currently implemented for the Space Station are conducted. Both the fixed-gain and the adaptive gain controllers are able to maintain the Station stability for inertia variations of up to 35 percent. However, when a 50 percent inertia variation is applied to the Station, only the adaptive controller is able to maintain the Station attitude.
Document ID
19920072617
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lam, Quang M. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Chipman, Richard (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Hu, Tsay-Hsin G. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Holmes, Eric B. (Grumman Corp. Space Station Integration Div., Reston, VA, United States)
Sunkel, John (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 92-4483
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference