Results 11 to 20 of about 23,175 (239)

Learning Disturbance Models for Offset-Free Reference Tracking

open access: yesIEEE Transactions on Automatic Control
This work presents a nonlinear control framework that guarantees asymptotic offset-free tracking of generic reference trajectories by learning a nonlinear disturbance model, which compensates for input disturbances and model-plant mismatch. Our approach generalizes the well-established method of using an observer to estimate a constant disturbance to ...
Pablo Krupa   +2 more
exaly   +3 more sources

Offset-free tracking movement control based on model predictive control with disturbance suppression using disturbance observer

open access: yesNihon Kikai Gakkai ronbunshu, 2017
This study proposes a movement control system based on model predictive control (MPC) with state expressed identity disturbance observer (DOB). The proposed controller removes tracking errors of control variables due to disturbance influences.
Takashi OHHIRA, Akira SHIMADA
doaj   +3 more sources

Model Predictive Control of DC–DC Boost Converter Based on Generalized Proportional Integral Observer

open access: yesEnergies, 2023
Due to the nonminimum phase characteristics and nonlinearity of boost converters, the control design is always a challenging issue. A novel model predictive control strategy is proposed for the boost converter in this work.
Rongchao Niu, Hongyu Zhang, Jian Song
doaj   +1 more source

Sliding Mode Control for Hypersonic Vehicle Based on Extreme Learning Machine Neural Network Disturbance Observer

open access: yesIEEE Access, 2022
The novel extreme learning machine (ELM) neural network disturbance observer (NNDO) -based sliding mode control (SMC) strategy is proposed for the precise tracking control of a hypersonic vehicle (HV) under various disturbance situations.
Haiyan Gao, Weiqiang Tang, Rong Fu
doaj   +1 more source

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

Linear Offset-Free Model Predictive Control in the Dynamic PLS Framework

open access: yesInformation, 2018
This work addresses the model predictive control (MPC) of the offset-free tracking problem in the dynamic partial least square (DyPLS) framework. Firstly, state space MPC based on the DyPLS is proposed.
Ligang Hou, Ze Wu, Xin Jin, Yue Wang
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

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

Phase Offset Tracking for Free Space Digital Coherent Optical Communication System

open access: yesApplied Sciences, 2019
The coherent receiving method can improve the sensitivity of an optical signal receiver for free space optical communication system effectively. To implement coherent receiving, the phase offset between the local laser in the receiver and the received ...
Hongwei Li   +5 more
doaj   +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

Home - About - Disclaimer - Privacy