Observer-based LPV control with anti-windup compensation: a flight control example

A low-complexity anti-windup compensation scheme for linear parameter-varying (LPV) controllers is proposed in this paper. Anti-windup compensation usually increases complexity of LPV controllers significantly. A synthesis algorithm is used in this paper that, unlike conventional algorithms, splits the problem into an observer synthesis and a subsequent state feedback synthesis. The resulting controller structure is exploited for a novel differential implementation that allows straightforward incorporation of conventional anti-windup logics. The method is used to design a pitch-axis flight control law for an unmanned aerobatic aircraft, where anti-windup compensation is an important practical requirement. Applicability is demonstrated in nonlinear simulation using a flight-test-validated high-fidelity model.

Subjects

Control system synthesis

Coprime factorization

Flight control

Linear parameter-varying control

Mixed sensitivity problem

Observers

Robust control

DDC Class

600: Technik

620: Ingenieurwissenschaften

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publishedVersion

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https://creativecommons.org/licenses/by-nc-nd/4.0/

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1-s2.0-S2405896320313483-main.pdf

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734.87 KB

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Observer-based LPV control with anti-windup compensation: a flight control example