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Linear Control Systems (linear + control_system)

Distribution by Scientific Domains

Engineering	80%

Selected Abstracts

OPEN-LOOP AND CLOSED-LOOP OPTIMIZATION OF LINEAR CONTROL SYSTEMS

ASIAN JOURNAL OF CONTROL, Issue 3 2000
R. Gabasov
ABSTRACT A canonical optimal control problem for linear systems with time-varying coefficients is considered in the class of discrete controls. On the basis of linear programming methods, two primal and two dual methods of constructing optimal open-loop controls are proposed. A method of synthesis of optimal feedback control is described. Results are illustrated by a fourth-order problem; estimates of efficiency of proposed methods are given. [source]

A web-based tool for control engineering teaching

COMPUTER APPLICATIONS IN ENGINEERING EDUCATION, Issue 3 2006
J. Albino Méndez
Abstract In this article a new tool for control engineering teaching is presented. The tool was implemented using Java applets and is freely accessible through Web. It allows the analysis and simulation of linear control systems and was created to complement the theoretical lectures in basic control engineering courses. The article is not only centered in the description of the tool but also in the methodology to use it and its evaluation in an electrical engineering degree. Two practical problems are included in the manuscript to illustrate the use of the main functions implemented. The developed web-based tool can be accessed through the link http://www.controlweb.cyc.ull.es. © 2006 Wiley Periodicals, Inc. Comput Appl Eng Educ 14: 178,187, 2006; Published online in Wiley InterScience (www.interscience.wiley.com); DOI 10.1002/cae.20080 [source]

Issues in the design of switched linear control systems: A benchmark study

INTERNATIONAL JOURNAL OF ADAPTIVE CONTROL AND SIGNAL PROCESSING, Issue 2 2003
D.J. Leith
In this paper we present a tutorial overview of some of the issues that arise in the design of switched linear control systems. A benchmark regulation problem is then presented. Copyright © 2003 John Wiley & Sons, Ltd. [source]

Dynamic Simulation and Control of an MTBE Catalytic Distillation Column

ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING, Issue 3-4 2000
H. Lin
A dynamic model of an MTBE (methyl tert butyl ether) catalytic distillation column was developed using the SpeedUp simulation package. Experimental kinetic rate data, rigorous thermodynamics, vapour-liquid nonidealities and tray hydraulics were incorporated in the simulation. The steady state results from the dynamic model were compared with the steady state results from a steady state model developed using the AspenPlus simulation package. The steady state results from the two simulations were in perfect agreement with each other. Open hop step tests were performed on the dynamic model of this process and the process model indicated a non-linear, self-regulating behaviour and did not exhibit any multiplicities. Multiloop linear control systems were designed and PI, PID and Dynamic Matrix Control (DMC) controllers were tested on the simulation for load disturbances and setpoint changes. All controllers performed adequately; the DMC controller consistently resulted in better dynamic control performance than the other two controllers. [source]