A CAD-package serving for the design of discrete-time multivariable control systems is presented. Various design methods for different feedback controller types (DB, PID, SC) are described based on discrete-time param...
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ISBN:
(纸本)0080325572
A CAD-package serving for the design of discrete-time multivariable control systems is presented. Various design methods for different feedback controller types (DB, PID, SC) are described based on discrete-time parametric process models which are obtained by on-line identification methods. The concept of the software package contains an interpreter and a database offering high flexibility in the design and coordinating the design modules. A design example starting with the identification and ending with a DDC-implementation is shown.
An interactive graphical tool to define real time applications for process control is presented. Interactivity and graphical representation make the work of the user of the tool easy and the real time system software ...
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ISBN:
(纸本)0080325572
An interactive graphical tool to define real time applications for process control is presented. Interactivity and graphical representation make the work of the user of the tool easy and the real time system software transparent to him. The task of the programmer is simplified, reduced to the writing of the controllers, all real time and communication aspects being solved.
The paper outlines the capabilities of the Sussex University Nonlinear software. The programs based on two theoretical techniques, the describing function and Tsypkin's method, evaluate limit cycle solutions in bo...
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ISBN:
(纸本)0080325572
The paper outlines the capabilities of the Sussex University Nonlinear software. The programs based on two theoretical techniques, the describing function and Tsypkin's method, evaluate limit cycle solutions in both continuous and discrete feedback systems. The software allows the display of solution waveforms at the input to each nonlinearity and an exact orbital stability criterion, for continuous systems, is used for the limit cycles predicted by the Tsypkin method. Most of the software is for fixed structure canonical feedback systems although one of the DF based programs allows analysis of systems of a free structure. The software may also be used for frequency domain design where gain and phase margins of compensation schemes may be calculated by finding the minimum amount of additional gain or time delay required for a system to limit cycle.
The paper describes an application of a robust controller design method for calculating the parameters of a controller for a multivariable hard-coal preparation process. The parameters are optimized via a sequential d...
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ISBN:
(纸本)0080325572
The paper describes an application of a robust controller design method for calculating the parameters of a controller for a multivariable hard-coal preparation process. The parameters are optimized via a sequential design method in the frequency domain, based on a combination of the Horowitz/Sidi design (1972), Mayne's (1973) sequential design and Steinhauser/Kreisselmeier's (1979) vector performance criterion method. The design was carried out using a sophisticated CAD-program. The paper shows how the parameters are calculated with this CAD-method and discusses the simulated control results. The simulation is compared with the measured results at the plant after implementation of the designed controller on a process computer AEG 80/30 with a real time software control package ARSI.
Different CAD-packages for control systems, designed and used in the Soviet Union are treated. Control algorithm design and control system design, being the essential parts of CAD-package development are described. Re...
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ISBN:
(纸本)0080325572
Different CAD-packages for control systems, designed and used in the Soviet Union are treated. Control algorithm design and control system design, being the essential parts of CAD-package development are described. References are made to the contributions which discuss a number of particular packages as well as their application areas.
A general purpose graphics based man-machine computer interface is described with particular reference to its use in the design of control systems and the simulation of dynamical systems. The software requirements for...
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ISBN:
(纸本)0080325572
A general purpose graphics based man-machine computer interface is described with particular reference to its use in the design of control systems and the simulation of dynamical systems. The software requirements for such an interface are outlined and the structure of a real time graphics operating system (ARGOS) which meets these requirements is discussed. The operating system allows complex interconnected linear and nonlinear systems to be described in simple diagrammatic form for direct interpretation by existing algorithms for analysis in both the time and frequency domain. The graphics input procedures are applicable to a number of existing computer aided design packages.
An interactive system called SYSLAB for analysis and design of linear multivariable control systems inthe state space is described. It is developed on the basis of MATLAB - a powerful interactive language for matrix c...
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ISBN:
(纸本)0080325572
An interactive system called SYSLAB for analysis and design of linear multivariable control systems inthe state space is described. It is developed on the basis of MATLAB - a powerful interactive language for matrix computations which implements high quality software for solving matrix problems. SYSLAB makes possible to solve the basic problems of the analysis and design of linear multivariable control systems: stability analysis, investigation of the controllability/observability and reduction into canonical forms, pole assignment and synthesis of optical linear systems. Only algorithms that are proved numerically stably are implemented. SYSLAB is written in Fortran and is fully portable.
The paper deals with the improvement of system identification procedures by interactions between the user and the computer. The basic identification algorithms are discussed with respect to the necessity of dialog at ...
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ISBN:
(纸本)0080325572
The paper deals with the improvement of system identification procedures by interactions between the user and the computer. The basic identification algorithms are discussed with respect to the necessity of dialog at some places of the procedure and the efficiency of that approach for model and parameter estimation. All referred problems are implemented in the interactive software system named INSOF-I. The conception and considerations for its hierarchical structure are given. All ideas of the man-machine interaction supported by the protocol and graphical output of INSOF-I are demonstrated by the generalized least squares estimation method.
This paper introduces a self-tuning control system CAD package CADST which includes 4 kinds of self-tuning algorithm. Engineers can use the CADST by simple man-machine interactive dialogs to implement the project desi...
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ISBN:
(纸本)0080325572
This paper introduces a self-tuning control system CAD package CADST which includes 4 kinds of self-tuning algorithm. Engineers can use the CADST by simple man-machine interactive dialogs to implement the project design. A project of self-tuning thickness control system for reversing cold mill has been implemented by the using of CADST.
In recent years, computers have assumed an important role in the logic design of industrial digital control systems. The implementation of large-scale digital systems is an example of one design problem which can be i...
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ISBN:
(纸本)0080325572
In recent years, computers have assumed an important role in the logic design of industrial digital control systems. The implementation of large-scale digital systems is an example of one design problem which can be impractical to solve by hand. Based on technological demands, an engineer should form a desired control specification which represents the input format to an available computer. A computer should produce desired logic equations as a basis for the immediate realization. software for complete design of digital control networks is presented. It is applicable for treating deterministic as well as stochastic systems, both combinational and sequential. The concept of using interactive computer graphics and other available computer aids in the synthesis process is given.
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