Self-triggered and event-driven control for linear systems with stochastic delays

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Delays are often present in embedded and networked control loops and represent one of the main sources of performance limitations. In this paper, we propose two aperiodic control strategies to optimize closed-loop performance in the presence of stochastic delays: (i) a self-triggered strategy, in which the deadline to drop data is decided on-line based on the current state; (ii) an event-driven strategy, whereby the control input is updated immediately after the delayed data becomes available, leading in general to faster but time-varying control loops. These schemes are designed and analyzed using a standard LQG framework, which allows for assessing and comparing closed-loop performance. We establish that our self-triggered strategy always achieves a better closed-loop performance than periodic control with an optimal sampling period. Moreover, we provide examples where the event-driven strategy outperforms the self-triggered strategy and examples where the opposite is observed.

Originele taal-2Engels
Titel2017 American Control Conference, ACC 2017
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Aantal pagina's6
ISBN van elektronische versie9781509059928
StatusGepubliceerd - 29 jun 2017
Evenement2017 American Control Conference (ACC 2017) - Sheraton Seattle Hotel, Seattle, Verenigde Staten van Amerika
Duur: 24 mei 201726 mei 2017


Congres2017 American Control Conference (ACC 2017)
Verkorte titelACC 2017
LandVerenigde Staten van Amerika
Internet adres

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