Buscar
Mostrando ítems 1-10 de 156
Use of state estimation for inferential nonlinear MPC: a case study
(Elsevier Science Sa, 2005-01-28)
Model predictive control (MPC) has become very popular in process industry and academia because it is an optimizing control technique which can handle hard constraints as well as time delays and mild nonlinearities. Linear ...
State estimation in batch processes using a nonlinear observer
(Pergamon-Elsevier Science Ltd, 2006-12)
This paper deals with the problem of nonlinear states estimation in batch chemical processes. It presents a reduced-order nonlinear observer approach to perform the estimation. The proposed method allows adjustment of the ...
Robust stability of moving horizon estimation for non-linear systems with bounded disturbances using adaptive arrival cost
(Institution of Engineering and Technology, 2020-12)
The robust stability and convergence to the true state of a moving horizon estimator based on an adaptive arrival cost are established for non-linear detectable systems in this study. Robust global asymptotic stability is ...
Simultaneous state estimation and control for nonlinear systems subject to bounded disturbances
(Cornell University, 2019-06)
In this work, we address the problem to solve simultaneously state estimation and control of nonlinear systems under bounded disturbances using a moving horizon approach. Besides, necessary and sufficient conditions to ...
Sensor location for nonlinear state estimation
(Elsevier, 2021-04)
The structure of the sensor network installed in the plant strongly influences the performance of state estimation techniques. One of them, the Unscented Kalman Filter (UKF), provides significant improvement over other ...
Robust stability of moving horizon estimation for nonlinear systems with bounded disturbances using adaptive arrival cost
(Cornell University, 2019-06)
In this paper, the robust stability and convergence to the true state of moving horizon estimator based on an adaptive arrival cost are established for nonlinear detectable systems. Robust global asymptotic stability is ...
A high gain nonlinear observer: Application to the control of an unstable nonlinear process
(Pergamon-Elsevier Science Ltd, 2004-08)
State estimation has become an important area of research in the field of process engineering. This is because there are many applications that demand the knowledge of many of the state variables, if not all of them. Among ...
Application of state estimation based NMPC to an unstable nonlinear process
(Pergamon-Elsevier Science Ltd, 2004-11)
Model predictive control (MPC) has become very popular both in process industry and academia due to its effectiveness in dealing with nonlinear, multivariable and/or hard-constrained plants. Although linear MPC can be ...
State Estimation and Nonlinear Tracking Control Simulation Approach: Application to a Bioethanol Production System
(Springer, 2021-08)
Tracking control of specifc variables is key to achieve a proper fermentation. This paper analyzes a fed-batch bioethanol production process. For this system, a controller design based on linear algebra is proposed. Moreover, ...
Nonlinear control of a permanent magnet synchronous motor with disturbance torque estimation
(Institute of Electrical and Electronics Engineers, 2000-06)
This paper introduces a sensorless nonlinear control scheme for controlling the speed of a permanent magnet synchronous motor (PMSM) driving an unknown load torque. The states of the motor and disturbance torque are estimated ...