Ústav teorie informace a automatizace

Jste zde

Bibliografie

Journal Article

On the internal stability of non-linear dynamic inversion: application to flight control

Alam M., Čelikovský Sergej

: IET Control Theory and Applications vol.11, 12 (2017), p. 1849-1861

: GA17-04682S, GA ČR

: flight control, non-linear dynamic inversion, stability

: 10.1049/iet-cta.2016.1067

: http://library.utia.cas.cz/separaty/2017/TR/celikovsky-0476150.pdf

(eng): Aircraft are highly non-linear systems, but flight control laws are traditionally designed from a set of linearised models. Due to the application of linear control laws on a non-linear system, the real performance ability of the aircraft is not fully utilised. In addition, in adverse situations like near stall, the aircraft develops significant non-linearities, and linear control laws do not perform well. This study therefore considers the design of a longitudinal flight controller for a fixed-wing aircraft using non-linear dynamic inversion technique or, in terms of control theory, partial exact feedback linearisation. A novel contribution of this study is the proposed combination of three different automatic flight controllers that provide complete 3-DOF longitudinal control. A detailed analysis of the internal dynamics for each controller is also presented. It has been shown that for each controller the internal dynamics are stable. This makes the controller suitable for various flight conditions. The aims of these flight controllers are threefold.

: BC

: 20205

07.01.2019 - 08:39