Suboptimal Control of Unknown Second-Order Nonlinear Systems With Guaranteed Global Convergence
نویسندگان
چکیده
A suboptimal active disturbance rejection controller (S-ADRC) is proposed for second-order systems with unknown time-varying nonlinear dynamics. The output-feedback guarantees a global convergence to the vicinity of an optimal solution by means dynamic control gains, based on estimated main and extended state variables obtained through high-gain observer. Three numerical examples compare performance scheme applied linear that fixed-gain conventional ADRC as well several model-based controllers.
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ژورنال
عنوان ژورنال: IEEE Control Systems Letters
سال: 2022
ISSN: ['2475-1456']
DOI: https://doi.org/10.1109/lcsys.2022.3184647