Robustness of constant-delay predictor feedback for in-domain stabilization of reaction–diffusion PDEs with time- and spatially-varying input delays
نویسندگان
چکیده
This paper discusses the in-domain feedback stabilization of reaction-diffusion PDEs with Robin boundary conditions in presence an uncertain time- and spatially-varying delay distributed actuation. The proposed control design strategy consists a constant-delay predictor designed based on known nominal value input is synthesized finite-dimensional truncated model capturing unstable modes original infinite-dimensional system. By using small-gain argument, we show that resulting closed-loop system exponentially stable provided variations around its are small enough. proof actually applies to any distributed-parameter associated unbounded operator 1) generates $C_0$-semigroup weighted space square integrable functions over compact interval; 2) self-adjoint resolvent.
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ژورنال
عنوان ژورنال: Automatica
سال: 2021
ISSN: ['1873-2836', '0005-1098']
DOI: https://doi.org/10.1016/j.automatica.2020.109347