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Modern Anti-windup SynthesisControl Augmentation for Actuator Saturation$
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Luca Zaccarian and Andrew R. Teel

Print publication date: 2011

Print ISBN-13: 9780691147321

Published to Princeton Scholarship Online: October 2017

DOI: 10.23943/princeton/9780691147321.001.0001

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Nonlinear MRAW Synthesis

Nonlinear MRAW Synthesis

(p.200) Chapter Eight Nonlinear MRAW Synthesis
Modern Anti-windup Synthesis

Luca Zaccarian

Andrew R. Teel

Princeton University Press

This chapter deals with nonlinear model recovery anti-windup (MRAW) synthesis. In considering nonlinear synthesis techniques for the feedback signal, the user can expect a tradeoff between anti-windup performance, which has the potential to improve since less structure is imposed on the anti-windup augmentation, and design and implementation complexity. The tradeoff can be extreme in the case of global anti-windup for plants that are marginally unstable. For exponentially unstable plants, the chapter describes a design that requires extra state measurements from the plant and then yields improved performance compared to that achieved using linear designs. After discussing anti-windup augmentation, the chapter examines the switching and scheduling of linear controllers, along with model predictive control for anti-windup design. It also evaluates global designs for non-exponentially unstable plants as well as designs for exponentially unstable plants that maximize the basin of attraction.

Keywords:   model recovery anti-windup, anti-windup augmentation, exponentially unstable plant, switching, scheduling, linear controller, model predictive control, anti-windup design, non-exponentially unstable plant, nonlinear synthesis technique

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