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In the paper several approaches to building the real-time basic principle simulators of nuclear reactor processes are presented and their characteristics are analyzed. The characteristics of developed simulators for MATLAB/Simulink including their limitations, and the idea of a cross-platform simulator independent of specific hardware or software are presented. Mathematical models of selected nuclear...
In an aluminium strip processing line, the main concern is to control independently velocity and tension. This paper deals with two control systems applied to a basic unwinder-rewinder system: the first one is based on classic PI controllers including specific compensations. The second is a LQG control. Simulations demonstrate the effectiveness of both solutions.
State observation of distributed parameter systems pose the problem of coping with the infinite state dimension of the process models. In addition to this difficulty, the dynamics of Simulated Moving Bed (SMB) processes is described by partial differential equations which are governed by switching initial conditions or switching boundary conditions, respectively. Furthermore, due to the setup of SMB...
Detailed first-principle models of grinding processes, while very satisfactory for simulation purposes, are not well suited for the development of control schemes due to their high level of complexity. In this study, a low-order model describing the time evolution of the particle distribution in a few size intervals is proposed. Using a maximum-likelihood approach, the model is identified and its...
The paper is to study new control strategies for improvement of dynamic responses of a supercritical power generation process through an improved control to the associated fuel preparation performed by the coal milling process. Any control actions taking for the milling process will take a long time to show their influences onto the boiler, turbine and generator responses as the whole process experiences...
The purpose of this paper is to develop a nonlinear and multivariable model, using the step response in a industry didactic plant, which is used in the course of industrial process control at IFES - SERRA (ES). From the physical equations are determine the stationary behavior of the plant in any operation point. By using the step response, the dynamic characteristics of the plant is approximated by...
By using the method of logical analysis and case study, this essay has discussed the application of mathematical modeling in coaching process control. The conclusion is that the whole implementation process of model training method is based on the index system of training modeling, and use evaluation index system as examination appliance. The development and change of the coaching process are under...
This paper presents a few examples of the possibility of effective use of open-source simulation tools within the project gsim to solve the problems of the electronics in educational and professional practice. The fundamental difference with regard to commercial products are open file and data formats, the possibility of creating own components and macro models. An essential advantage is the easy...
Before fabricating the ordered product, an automated production system needs to evaluate its capacity in order to make the products in time and guarantee a deadlock-free manufacturing process. It is important to pre-evaluate the flexibility and agility of the automated production system and also simulate the system operation for the customized variety products in quick response and completely prevent...
The artificial mathematical model of feed water treatment is investigated by the method of mechanism and modeling of distributed parameter system; it includes the basic processes of feed water treatment, i.e.coagulation, flocculation and sedimentation. This model can give the dynamic response of relationship between coagulant dosage and water turbidity after flocculation and sedimentation. The influence...
In this paper the stages pursuit to develop a full scope gas-turbine power plant simulator are explained and the general characteristics of the simulator are described. Presently the simulator is being used in the National Centre for Operators' Training of the Utility Mexican Company. The simulator response was validated against data from the real plant, the Combined Cycle Power Plant "El Sauz"...
The modelling and the control of the web handling systems have been studied for a long time; the correct modelling is necessary in order to design a better control system or to experimentally identify the plant parameters. On the web dynamics itself, lumped parametric expressions may be used to designate a web section between two adjacent drive rolls, and there is the necessity to incorporate the...
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