ALGORITHM IMPLEMENTATION OF INTEGRATED MACROMODEL EXPLICIT FORM

Abstract

It is shown that the class of adequate mathematical models of dynamic objects of varying
complexity is integrated model, built on the principle "input - output". It is important that this class of
models, presented as a macro model of the object based on its input and output, suitable for linear and
nonlinear modeling tasks productions. The most convenient form of descriptions of integrated macro models
should be considered Volterra equations, numerical solution which is most often performed by a quadrature.
It is noted that the main disadvantage of the use of quadrature formulas in the procedures of the
approximate (numerical) integration is a significant error on large intervals of integration. Obvious known
ways of minimizing errors of quadrature formulas on the selected class of functions should be considered a
rational choice of the coefficients for quadrature formulas, as well as components and integration steps.
Moreover, the accumulation of errors to increase the number of steps is determined not so much by the size
of the step, as by replacing the original integral by a finite sum. The latter circumstance is important for original integral into two and apply for each of the last of its quadrature rules (for example, a combination
of open and closed types of formulas of Newton-Cotes) can be offered. The increase in computing speed in
the implementation of the integrated macro models based on Volterra models is achieved by using the
method of degenerate cores, a feature of which is the same amount calculation step. Proposed fast
algorithms for computing the design implementation of integrated macro models, providing calculations in
real-time.
modeling of objects in the real-time integration interval may be large or even unknown. To improve the
accuracy of quadrature formulas procedure consisting in the expansion of the numerical integration of the 

Author Biographies

Андрей Анатольевич Верлань, Norwegian University of Science and Technology

Candidate of Technical Sciences, Senior Researcher
Norwegian University of Science and Technology

Ю. Стертен, Norwegian University of Science and Technology

Associate Professor, Faculty of Technology, Economics and
management
Norwegian University of Science and Technology

Сергей Анатольевич Положаенко, Odessa National Polytechnic University

Doctor of Technical Sciences, Professor,
head of the computerized department
control systems
Odessa National Polytechnic
the university

Published
2017-03-28
How to Cite
Верлань, А., Стертен, Ю., & Положаенко, С. (2017). ALGORITHM IMPLEMENTATION OF INTEGRATED MACROMODEL EXPLICIT FORM. Electrotechnic and Computer Systems, (24(100), 143-150. https://doi.org/10.15276/eltecs.24.100.2017.18
Section
Dynamic Systems' Modelling