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Gain-Scheduled Output Feedback Flight Controller Design via Non-Conservative Condition for Overbounding Parameter Discrepancies
December 21, 2018 @ 2:00 pm - 3:00 pm
This talk tackles the design problem of gain-scheduled output feedback controllers using inexactly provided scheduling parameters, and proposes a design method in which the overbounding condition for the discrepancies between actual and provided scheduling parameters is derived in a non-conservative way. In the last decade, this problem has been addressed intensively; however, the methods in literature are merely sufficient with respect to the overbounding of the discrepancies between actual scheduling parameters and provided ones. For this issue, we use a well-known “Elimination lemma” to overcome the bottleneck and provide a design method in which conservatism for overbounding the discrepancies disappears. The derived condition is still a bilinear matrix inequality; however, it’s tractable compared to the original condition. We design a gain-scheduled flight controller for the lateral-directional motions of our research aircraft using our method, which well illustrates the effectiveness of our method compared to the methods in literature.
Speaker(s): Dr. Masayuki Sato,
6250 Applied Science Lane
Vancouver, British Columbia