Non-smooth H Optimization with selective pole constraints of static output-feedback controllers and its application to flexible aircraft control

I. Yaesh, U. Shaked

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A non-smooth optimization approach for designing constant output-feedback controllers for linear time-invariant systems with lightly damped poles is considered. The design requirements combine H performance requirements with regional pole constraints excluding high frequency lightly damped poles. In contrast to the usual (full) pole-placement (FPP) problem, the problem dealt here is one of Selective Pole Placement (SPP). The latter design problem is frequently encountered in the control of aircraft with non-negligible aeroelastic modes which are too fast to be handled by the control surface actuators. As in the FPP case, the pole constraints are embedded in the design criterion using a transformation on the system model which modifies the H -norm. of the closed-loop system via a barrier function that is related to the closed-loop poles damping. In The SPP case, however, numerical calculations of the gradient of the cost function are needed rather than a closed form solution derived for the FPP. The method is applied to a flight control example of a flexible aircraft.

Original languageEnglish
Title of host publication53rd Israel Annual Conference on Aerospace Sciences 2013
Pages545-564
Number of pages20
StatePublished - 2013
Event53rd Israel Annual Conference on Aerospace Sciences 2013 - Tel-Aviv and Haifa, Israel
Duration: 6 Mar 20137 Mar 2013

Publication series

Name53rd Israel Annual Conference on Aerospace Sciences 2013
Volume1

Conference

Conference53rd Israel Annual Conference on Aerospace Sciences 2013
Country/TerritoryIsrael
CityTel-Aviv and Haifa
Period6/03/137/03/13

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