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Tuesday, July 9 • 17:10 - 17:30
INTEGRAL COMPENSATION FOR DISTURBANCE REJECTION IN LONGITUDINAL FLIGHT CONTROL OF A FIXED-WING UNMANNED AERIAL SYSTEM UAS-S4

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Longitudinal flight control plays a high role for conventional and unmanned aircraft due to its importance in take-off, climbing, cruise, descent, and landing phases of the flight cycle where the elevator deflection works as the main control input. For that reason, an automatic controller is necessary for providing flight stability to these Unmanned Aerial Systems (UAS) against wind external disturbances. In the literature, several disturbance-estimation mechanisms have been proposed in the control of diverse linear and nonlinear systems. In this work, an Integral Compensation Based-Control approach is introduced for pitch control of the fixed-wing UAS-S4 Ehecatl. The proposed robust scheme allows both suitable rejection of matched external disturbances and reference tracking tasks. In order to deal with the effect of high-gain of the controller, an anti-windup saturation is adequately implemented for the control input. It is worth to note that the main advantage of the introduced control approach is the fact that the implementation of an observer is not needed for disturbance estimation. The good performance of the proposed robust controller is assessed in several numerical simulations. The results show that the controller is capable to properly carry out trajectory tracking tasks even in presence of disturbances.

Moderators
EP

Elsa Piollet

Dr, Polytechnique Montréal
avatar for Mohammad Rafiee

Mohammad Rafiee

Postdoctoral Fellow, Polytechnique Montréal
Mohammad Rafiee received his Ph.D. degree in Mechanical Engineering from the University of Ottawa in 2018. Currently, he is a Postdoctoral Fellow at Polytechnique Montreal in Canada. His research interests are primarily focused on the development of advanced composite materials, smart... Read More →
AR

Annie Ross

Professor, Polytechnique Montreal

Authors

Tuesday July 9, 2019 17:10 - 17:30 EDT
St-Laurent 8
  T07 Struct. dyn. & nonlin. vib., RS02 Vibr & cntrl of nonlin mech syst

Attendees (4)