Control systems engineering education

The paper summarizes experiences of development and use of interactive software for computer aided design of control systems. Different principles for interaction with users having wide ranges of experiences and knowledge are discussed. A comprehensive set of packages for modeling, identification, analysis, simulation, and design are described. Problems associated with structuring, portability, maintainability and extensibility are discussed. Experiences from development and use of the packages in teaching and industrial environments are discussed. Some views on future development of CAD for control systems are also given.

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Computer aided modeling, analysis and design of control systems - A perspective

The control laboratory and curriculum at Lund Institute of Technology in Sweden are described. Their major goal is to give students a strong background in control theory and an engineering ability to make control systems that work. This is accomplished with a coordinated course structure that is applicable to undergraduates, graduates, and continuing education. The program's control laboratory utilizes a variety of software packages that cover simulation, identification, control design, and online computer control. >

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Lund control program combines theory with hands-on experience

Modelling and parameter estimation of a ship boiler

In this paper, a laboratory experiment, which was developed to teach undergraduate students at the University of Pretoria, Pretoria, South Africa, some of the main issues regarding closed-loop system identification, is discussed. In this experiment, a plant is identified both from open-loop and closed-loop data. The model obtained from the open-loop data is used as reference to evaluate a closed-loop system identification approach. A motivation for closed-loop system identification and a laboratory experiment in this field is given. The experiment is outlined, each step is discussed, and the experiment is evaluated. This experiment shows that closed-loop system identification can be taught in an uncomplicated manner.

A laboratory experiment to teach closed-loop system identification

The Need for Better Laboratory Experiments in Control Engineering Education

CYPROS is an interactive program system consisting of a number of special purpose packages for simulation, identification, parameter estimation and control system design. The programming language is standard Fortran IV, and the system is implemented on a medium size computer system (Nord-10). The system is interactive and program control is obtained by the use of numeric terminals. Output is rapidly examined by extensive use of video colour graphics. The subroutines included in the packages are designed and documented according to standardization rules given by the SCL (Scandinavian Control Library) organization. This simplifies the exchange of subroutines throughout the SCL system. Also, this makes the packages attractive for implementation by industrial users. In the simulation package, different integration methods are available, and it can be easily used for off-line, as well as real time simulation problems. The identification package consists of programs for single-input/single-output and multivariable problems. Both transfer function models and state space models can be handled. Optimal test signals can be designed. The control package consists of programs based on multivariable time domain and frequency domain methods for analysis and design. In addition, there is a package for matrix and timeseries manipulation. CYPROS has been applied successfully to industrial problems of various kinds, and parts of the system have already been implemented on different computers in industry. The paper will in some detail describe the use and the contents of the packages and some examples of applications will be discussed.

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A. Tysso

Papers

The Need for Better Laboratory Experiments in Control Engineering Education

Cypros: cybernetic program packages

CYPROS: Cybernetic Program Packages