Adaptive Architectures for Control of Uncertain Dynamical Systems with Actuator Dynamics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00325171" target="_blank" >RIV/68407700:21230/18:00325171 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.2514/4.104794" target="_blank" >http://dx.doi.org/10.2514/4.104794</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2514/4.104794" target="_blank" >10.2514/4.104794</a>
Alternative languages
Result language
angličtina
Original language name
Adaptive Architectures for Control of Uncertain Dynamical Systems with Actuator Dynamics
Original language description
Stability properties of adaptive controllers can be seriously affected by the presence of actuator dynamics. Specifically, if the bandwidth of the actuator dynamics is sufficiently high, then a common practice is to neglect these dynamics in the design of adaptive controllers. However, if this is not the case and/or safety- critical applications of adaptive controllers are considered, then stability verification steps must be taken to show the allowable bandwidth range for actuators such that adaptive controllers lead to stable closed-loop system trajectories. Motivated from this standpoint, the purpose of this chapter is to present safe adaptive architectures for control of uncertain dynamical systems with actuator dynamics. We first present a linear matrix inequalities-based hedging framework, which modifies the ideal reference model trajectories to allow for correct adaptation that is not affected by the presence of actuator dynamics. Stability of the closed-loop dynamical system utilizing this framework is discussed using Lyapunov-based analysis tools. Next, we establish convergence properties of the modified reference model trajectories to the ideal reference model trajectories and present a generalization of the proposed linear matrix inequalities-based hedging framework to adaptive control. An algorithm is also presented to allow for less conservative computations of the minimum allowable actuator bandwidths as well as solving for cases in which there are multiple actuators. Finally, we illustrate the reported findings through an example on a linearized hypersonic aircraft model."
Czech name
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Czech description
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Classification
Type
C - Chapter in a specialist book
CEP classification
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OECD FORD branch
20205 - Automation and control systems
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Book/collection name
Advances in Computational Intelligence and Autonomy for Aerospace Systems
ISBN
978-1-62410-478-7
Number of pages of the result
40
Pages from-to
369-408
Number of pages of the book
431
Publisher name
AIAA
Place of publication
Reston, VA
UT code for WoS chapter
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