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A different look at output tracking: control of a vtol aircraft

✍ Scribed by Philippe Martin; Santosh Devasia; Brad Paden

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
634 KB
Volume
32
Category
Article
ISSN
0005-1098

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✦ Synopsis

In this paper we propose a scheme for output tracking of nonminimum phase flat systems. The technique, which is applicable even in the minimum phase case, uses an inverse trajectory for feedforward which is stabilized by a state tracker built using the flat output. In contrast to approximatelinearization based control [Hauser, J., S. Sastry and G. Meyer (1992). Nonlinear control design for slightly nonminimum phase systems: application to vlstol aircraft. Automatica, 28, 665-6791, which yields good performance in slightly nonminimum phase systems, our approach applies equally well to slightly and strongly nonminimum phase systems. The proposed control scheme and the approximate-linearization based controller are applied to a Vertical Take Off and Landing (VTOL) aircraft example and the performances are compared.

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