ROBUST CONTROL OF AN UNMANNED AERIAL VEHICLE AT UNDETERMINED SPEEDS

Будиба Уиссам

Abstract


This paper presents the method for implementing robust control using a nominal model of an unmanned aerial vehicle (UAV). The operation of a classical controller in a nonlinear control system in the event of disturbing influences does not satisfy the specified quality criteria. This changes the aerodynamic parameters, and the system becomes unstable. To eliminate unwanted deviations in the control system of the aircraft introduced robust control. The introduction of such a correction control signal allows you to fend off all sorts of failures and disturbances that lead to uncontrolled control. Changes in the aerodynamic lift coefficients, coefficient of resistance, and moments affect the model of the object. The nominal model is calculated by calculating the coefficients with the ANSYS-CFX software and the calculation is confirmed experimentally. Errors are also modeled by this software, and the ranges of variation of each coefficient are a set of failures.


Keywords


UAV; robust control; aerodynamic coefficients; failure; indefinite model; nominal model; k-infinity

References


Francois bateman, hassan noura, mustapha ouladsine diagnostic et tol´erances aux d´efauts : application a un drone. – С. 6-7 .

Jin Tao, Wei Liang, Qing-Lin Sun, Pan-Long Tan, Shu-Zhen Luo, Zeng-Qiang Chen, Ying-Ping He, Modeling And Control Of A Powered Parafoil In Wind And Rain Environments, IEEE2017–С. 1-11.

Будиба, Уиссам Модели малогабаритного летательного аппарата как объекта исследования функционально устойчивого управления // Открытые информационные и компьютерные интегрированные технологии. – 2017. №78. С.136-143

Randal w. Beard timothy w. Mclain, Small Unmanned Aircraft-Theory and Practice // Princeton University Press, Oxfordshire. – С.39-87.

Gu Petkov and Konstantinov, Robust Control Design with Matlab. – С.13-50.

Civil Aircraft Autopilot Design Using Robust Control-Searchable. – С. 29-63.

Aérodynamique Et Mécanique Du Vol.2, du B.I.A au C.A.E.A, Académie de Toulouse, france. – С. 6-23.

Oblak Blagoje, Theorie Classique De La Portance, vesion du printemps 2011. - С. 1-10.

Fernandez Cyril, Roman Vincent, Phenomene D'electromouillage, Universite De Nice Sophia-Antipolis, Уравнение Дюпре-Юнга. – С. 3-10.

Фирсов, С.Н. Обеспечение функциональной устойчивости системы стабилизации и ориентации малогабаритного автономного летающеого изделия [Текст]/ С.Н.Фирсов // Мехатроника, автоматизация, управление. – 2014. – №5. – С. 54–60.




DOI: https://doi.org/10.32620/oikit.2018.81.01

Refbacks

  • There are currently no refbacks.