Journal ArticleDOI
Optimal design of pid regulators
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The aim of this paper is to establish a link between PID regulators and optimal feedback design for linear systems by showing how the optimal control theory can be tailored to the design of optimal regulators.Abstract:
Tuning of three-term controllers, a widely popular device for process control, has always been accomplished by semi-empirical rules. The aim of this paper is to establish a link between PID regulators and optimal feedback design for linear systems. After showing how the optimal control theory can be tailored to the design of optimal regulators, the results are extended to the discrete-time case and the feasibility of a microprocessor implementation is assessed with the aid of benchmark testsread more
Citations
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Journal ArticleDOI
A Novel Infinite-Time Optimal Tracking Control Scheme for a Class of Discrete-Time Nonlinear Systems via the Greedy HDP Iteration Algorithm
TL;DR: This paper aims to solve the infinite-time optimal tracking control problem for a class of discrete-time nonlinear systems using the greedy heuristic dynamic programming (HDP) iteration algorithm, and defines a new type of performance index.
Journal ArticleDOI
Shock load modelling in the anaerobic digestion process
TL;DR: In this article, a simplified mathematical model for the behavior of anaerobic digesters under shock loading conditions is derived with a special emphasis on bicarbonate alkalinity.
Book ChapterDOI
Modelling, identification and control of the activated sludge process
TL;DR: In this article, the authors focus on the dynamic aspects of the activated sludge treatment process and assesses the operational improvements brought about by automatic control, and introduce a simplified model for the pollutant/biomass interaction.
Journal ArticleDOI
Design, implementation, and testing of an adaptable optimal controller for an electric wheelchair
TL;DR: In this article, the design, implementation, and testing of an adaptable optimal controller for an electric wheelchair is presented, which is adaptable in the sense that multiple sets of control coefficients are used with each set being optimized for a specific range of wheelchair load parameters.
References
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Book
Linear Optimal Control Systems
Huibert Kwakernaak,Raphael Sivan +1 more
TL;DR: In this article, the authors provide an excellent introduction to feedback control system design, including a theoretical approach that captures the essential issues and can be applied to a wide range of practical problems.
Journal ArticleDOI
On "A method for simplifying linear dynamic systems"
M. Chidambara,Edward J. Davison +1 more
TL;DR: A method is proposed for reducing large matrices by constructing a matrix of lower order which has the same dominant eigenvalues and eigenvectors as the original system.
Journal ArticleDOI
Routh approximations for reducing order of linear, time-invariant systems
TL;DR: The Routh table of the original transfer function has been used in this article to approximate the transfer function of a high-order linear system by one of lower-order lower order.
Journal ArticleDOI
Correspondence item: On the design of P-I-D controllers using optimal linear regulator theory
TL;DR: In this article, the proper formulation of a class of tracking problems, so that the solution by means of optimal linear regulator theory leads to a proportional-integral-derivative (P-I-D) type of controller is given.