Aircraft control with anti-windup compensation

Abstract

We consider an anti-windup compensation method ensuring the convergence of the closed-loop system for a class of reference signals. An application of the method to an aircraft flight control problem is shown.

A survey on evolutionary algorithms dynamics and its complexity – Mutual relations, past, present and future

“…Despite the fact that initial research has been done in this way, it is clear that there is a lot of unanswered questions like (for example) what is impact of specific dynamic regimes in SEA dynamics, visualized via CNS and CML, on SEA performance?, can control of SEA dynamics significantly improve its performance?, can chaotification of SEA dynamics have impact on population/swarm diversibility?, what impact on SEA performance has hidden attractor? [121][122][123][124][125][126], and more . Those and other que...…”

“…A very special and interesting case of chaos existence (precisely: hidden attractors) inside dynamics in a given system, that can be identified in SEA too, is also discussed in [121][122][123][124][125][126]. The importance of the discovery of hidden attractors is that its existence and activation in physical devices can cause dramatical changes in system behavior.…”

“…Gripen jet fighter crash can serve as an example 3 or F-22 raptor crash landing 4 caused by computer malfunction that lead into oscillations (called also wind-up in control theory). Hidden attractors, as a part of deterministic chaos, can be studied in [122][123][124][125][126] and deterministic chaos itself for example in [68,67].…”

Nonlinear problems in control of manufacturing systems

“…capturing the accident with YF-22. To prevent such performance degradation, various "anti-windup" (AW) techniques were proposed; for excellent survey, we refer the reader to (Tarbouriech and Turner, 2009;Zaccarian and Teel, 2011), see also (Leonov et al, 2012;Andrievsky et al, 2012b).…”

Hidden oscillations in stabilization system of flexible launcher with saturating actuators

“…It is well known, that due to control input saturation the closed-loop system performance may be significantly worsen, up to the stability loss (Åström and Rundqwist, 1989;Hippe, 2006;Tarbouriech et al, 2011). Particularly, oscillating behavior of the system, which is well damped at the nominal (non-saturated mode) may appear (see, e.g., (Tarbouriech et al, 2011;Leonov et al, 2012a;Andrievsky et al, 2012)).…”