Design of dissipative low-authority controllers using an eigensystem assignment techniqueA novel method for the design of dissipative, low-authority controllers has been developed. The method uses a sequential approach along with eigensystem assignment to compute rate and position gain matrices that assign a number of closed-loop poles of the system to desired locations. Because the feedback gain matrices are symmetric and nonnegative definite, the closed-loop stability is always guaranteed regardless of the model order or parameter inaccuracies. The resulting (nominal) closed-loop system can have specified damping ratios for m modes, which makes the plant amenable to high-authority controller design, using methods such as LQG/LTR or H-infinity. A numerical example is worked out for a flexible structure in order to demonstrate the proposed technique.
Document ID
19930038963
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Maghami, P. G. (NASA Langley Research Center Hampton, VA, United States)
Gupta, S. (NASA Langley Research Center Hampton, VA, United States)
Joshi, S. M. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: 1992 American Control Conference, 11th, Chicago, IL, June 24-26, 1992, Proceedings. Vol. 4 (A93-22776 07-63)
Publisher: Institute of Electrical and Electronics Engineers