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Compensation of input delay that depends on delayed input

Diagne Mamadou, Bekiaris-Liberis Nikolaos, Krstić, Miroslav

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URI: http://purl.tuc.gr/dl/dias/7F98CCC3-B8EE-43EB-A0D4-53BED98D383C
Έτος 2017
Τύπος Δημοσίευση σε Περιοδικό με Κριτές
Άδεια Χρήσης
Λεπτομέρειες
Βιβλιογραφική Αναφορά M. Diagne, N. Bekiaris-Liberis and M. Krstic, "Compensation of input delay that depends on delayed input," Automatica, vol. 85, pp. 362-373, Nov., 2017. doi:10.1016/j.automatica.2017.07.069 https://doi.org/10.1016/j.automatica.2017.07.069
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Περίληψη

For nonlinear systems, we develop a PDE-based predictor-feedback control design, which compensates actuator dynamics, governed by a transport PDE with outlet boundary-value-dependent propagation velocity. Global asymptotic stability under the predictor-feedback control law is established assuming spatially uniform strictly positive transport velocity. The stability proof is based on a Lyapunov-like argument and employs an infinite-dimensional backstepping transformation that is introduced. An equivalent representation of the transport PDE/nonlinear ODE cascade via a nonlinear system with an input delay that is defined implicitly through an integral of the past input is also provided and the equivalent predictor-feedback control design for the delay system is presented. The validity of the proposed controller is illustrated applying a predictor-feedback “bang–bang” boundary control law to a PDE model of a production system with a queue. Consistent simulation results are provided that support the theoretical developments.

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