Suboptimal control for nonlinear systems: a successive approximation approach

GY Tang - Systems & Control Letters, 2005 - Elsevier
This paper presents a successive approximation approach (SAA) designing optimal
controllers for a class of nonlinear systems with a quadratic performance index. By using the …

Successive approximation approach of optimal control for nonlinear discrete-time systems

GY Tang*, HH Wang - International Journal of Systems Science, 2005 - Taylor & Francis
A successive approximation approach designing optimal controller is developed for affine
nonlinear discrete-time systems with a quadratic performance index. By using this approach …

Optimal control of a class of discrete–continuous non-linear systems—decomposition and hierarchical structure

PD Roberts, VM Becerra - Automatica, 2001 - Elsevier
A technique is derived for solving a non-linear optimal control problem by iterating on a
sequence of simplified problems in linear quadratic form. The technique is designed to …

Novel developments in process optimisation using predictive control

VM Becerra, PD Roberts, GW Griffiths - Journal of Process Control, 1998 - Elsevier
In industrial practice, constrained steady state optimisation and predictive control are
separate, albeit closely related functions within the control hierarchy. This paper presents a …

Enhancing model predictive control using dynamic data reconciliation

ZH Abu‐el‐Zeet, PD Roberts, VM Becerra - AIChE journal, 2002 - Wiley Online Library
The use of data reconciliation techniques can considerably reduce the inaccuracy of
process data due to measurement errors. This in turn results in improved control system …

An integrated optimal control algorithm for discrete-time nonlinear stochastic system

SL Kek, KL Teo, AA Mohd Ismail - International Journal of Control, 2010 - Taylor & Francis
Consider a discrete-time nonlinear system with random disturbances appearing in the real
plant and the output channel where the randomly perturbed output is measurable. An …

Performance analysis of perturbation‐based methods for real‐time optimization

Y Zhang, JF Forbes - The Canadian Journal of Chemical …, 2006 - Wiley Online Library
This paper provides a comprehensive performance analysis approach for Real‐Time
Optimization (RTO) technologies, which incorporates systematic approaches to estimating …

Filtering solution of nonlinear stochastic optimal control problem in discrete-time with model-reality differences

SL Kek, KL Teo, MI Abd Aziz - Numerical Algebra, Control and …, 2012 - aimsciences.org
In this paper, we propose an efficient algorithm for solving a nonlinear stochastic optimal
control problem in discrete-time, where the true filtered solution of the original optimal …

Application of a novel optimal control algorithm to a benchmark fed-batch fermentation process

VM Becerra, PD Roberts - Transactions of the Institute of …, 1998 - journals.sagepub.com
A novel algorithm for solving nonlinear discrete time optimal control problems with model-
reality differences is presented. The technique uses Dynamic Integrated System …

Distributed optimal consensus control for nonlinear multiagent systems based on DISOPE algorithm

J Sun, J Li - Optimal Control Applications and Methods, 2019 - Wiley Online Library
In this note, a distributed dynamic integrated system optimization and parameter estimation
(DISOPE) algorithm for nonlinear multiagent system with general local finite time horizon …