Robust H infinity control design for the space station with structured parameter uncertaintyA robust H-infinity control design methodology and its application to a Space Station attitude and momentum control problem are presented. This new approach incorporates nonlinear multi-parameter variations in the state-space formulation of H-infinity control theory. An application of this robust H-infinity control synthesis technique to the Space Station control problem yields a remarkable result in stability robustness with respect to the moments-of-inertia variation of about 73% in one of the structured uncertainty directions. The performance and stability of this new robust H-infinity controller for the Space Station are compared to those of other controllers designed using a standard linear-quadratic-regulator synthesis technique.
Document ID
19950050853
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Byun, Kuk-Whan (NASA Johnson Space Center Houston, TX, US, United States)
Wie, Bong (NASA Johnson Space Center Houston, TX, US, United States)
Geller, David (NASA Johnson Space Center Houston, TX, US, United States)
Sunkel, John (Arizona State University Tempe, AZ, US, United States)