Results 11 to 20 of about 23,359 (238)

Offset-free setpoint tracking using neural network controllers

open access: yesCoRR, 2020
In this paper, we present a method to analyze local and global stability in offset-free setpoint tracking using neural network controllers and we provide ellipsoidal inner approximations of the corresponding region of attraction. We consider a feedback interconnection of a linear plant in connection with a neural network controller and an integrator ...
Patricia Pauli   +4 more
openaire   +3 more sources

Fuzzy Model Predictive Control With Enhanced Robustness for Nonlinear System via a Discrete Disturbance Observer

open access: yesIEEE Access, 2020
This paper addresses the tracking accuracy and robustness enhancement problems of fuzzy model based predictive control (MPC) for a class of nonlinear systems subjecting to lumped disturbances composed of bounded unknown disturbances and a model-plant ...
Jianzhong Zhu, Sing Kiong Nguang
doaj   +1 more source

Single-shot isotropic differential interference contrast microscopy

open access: yesNature Communications, 2023
Differential interference contrast (DIC) microscopy allows high-contrast, low-phototoxicity, and label-free imaging of transparent biological objects, and has been applied in the field of cellular morphology, cell segmentation, particle tracking, optical
Xinwei Wang   +18 more
doaj   +1 more source

Model predictive control for compliant feed drives with offset-free tracking behavior

open access: yesProduction Engineering, 2023
AbstractIndustrial machine tool feed drives are predominantly controlled by cascade control due to their low tuning complexity and inherent robustness. However, the cascaded structure requires the inner cascades to have higher dynamics than the outer cascades, which limits the achievable dynamic accuracy. Direct control approaches, which substitute the
Valentin Leipe   +3 more
openaire   +1 more source

Identification and Optimal Control for Surge and Swab Pressure Reduction While Performing Offshore Drilling Operations [PDF]

open access: yesModeling, Identification and Control, 2020
In this paper, an unscented Kalman filter coupled with a nonlinear model-predictive controller for a hydraulic wellbore model with multi-variable control and tracking is presented. In a wellbore, high drill string velocities in operational sequences such
Njål Tengesdal, Christian Holden
doaj   +1 more source

Robust MPC for tracking changing setpoints in discrete‐time non‐linear systems with non‐additive unknown disturbance

open access: yesIET Control Theory & Applications, 2022
This paper develops a novel observer‐based robust tracking predictive controller for discrete‐time nonlinear affine systems capable of dealing with changing setpoints and non‐additive non‐slowly varying unknown disturbance with bounded variations.
Abbas Zamani, Hossein Bolandi
doaj   +1 more source

Robust Explicit Moving Horizon Control and Estimation: A Batch Polymerization Case Study [PDF]

open access: yesModeling, Identification and Control, 2009
This paper focuses on the design and evaluation of a robust explicit moving horizon controller and a robust explicit moving horizon estimator for a batch polymerization process.
Dan Sui, Le Feng, Morten Hovd
doaj   +1 more source

Deep Learning-based Approximate Nonlinear Model Predictive Control with Offset-free Tracking for Embedded Applications

open access: yes2021 American Control Conference (ACC), 2021
The implementation of nonlinear model predictive control (NMPC) in applications with fast dynamics remains an open challenge due to the need to solve a potentially non-convex optimization problem in real-time. The offline approximation of NMPC laws using deep learning has emerged as a powerful framework for overcoming these challenges in terms of speed
Kimberly J. Chan   +2 more
openaire   +3 more sources

Practical Model Predictive Control for a Class of Nonlinear Systems Using Linear Parameter-Varying Representations

open access: yesIEEE Access, 2021
In this paper, a practical model predictive control (MPC) for tracking desired reference trajectories is demonstrated for controlling a class of nonlinear systems subject to constraints, which comprises diverse mechanical applications.
Hossam S. Abbas   +4 more
doaj   +1 more source

Linear Mismatched Model Based Offset-Free MPC for Nonlinear Constrained Systems With Both Stochastic and Deterministic Disturbances and Its Application to CSTR

open access: yesIEEE Access, 2018
This paper presents a linear mismatched model-based offset-free model-predictive control approach for nonlinear systems (also suits for mismatched linear systems) with both bounded stochastic and deterministic disturbances.
Lantao Xie, Hongye Su, Shan Lu, Lei Xie
doaj   +1 more source

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