Yukhymchuk M. S. DECENTRALIZED COORDINATED CONTROL OF DISTRIBUTED CYBER-PHYSICAL SYSTEMS WITH MULTI-ZONE THERMAL OBJECTS. - Qualifying scientific work on manuscript rights.
Dissertation for obtaining the scientific degree of Doctor of Technical Sciences in the specialty 05.13.07 — Automation of control processes. – Vinnytsia National Technical University. Vinnytsia, 2023.
The aim of the work is to improve the efficiency of coordination control of cyber-physical systems with multi-zonal distributed thermal objects by developing and implementing new principles, models, methods and algorithms of decentralized coordination.
It was proposed for the first time: a method of decentralized coordination of control of distributed cyber-physical systems (DCPS) with multi-zone thermal objects, which is distinguished by the application of the principle of short-range action, optimization of control according to the local-global criterion and the procedure of the sequential coordination procedure, which provides the possibility of dynamic changes in the structure of the distributed cyber-physical system and can to be used when control other types of distributed decentralized systems; a model of a multi-zonal thermal object, which is distinguished by taking into account the distribution of governing influences from the point of their application in space and time, which allows to determine the set of elements of the DCPS in space and time, for which the governing influence is significant, taking into account the given criterion of significance; the DCPS model with a multi-zone thermal object and resource control of the state in the form of a two-flow graph, which is distinguished by taking into account the mutual influence of the controlled elements of the multi-zone thermal object and resource costs for production, which allows you to evaluate the stability, resource intensity and other characteristics of the system; an indicator of the level of coordination, which determines the state of coordination in the interval from chaos to a given deterministic state, which allows evaluating the effectiveness of the coordination system.
The criterion for coordination of the DCPS with multi-zone thermal objects has been improved, which is based on the model of the multi-zone thermal object and the distribution of states of the object's elements in space and time, which allows for optimal coordination; the method of forecasting the state of distributed cyber-physical systems with continuous objects, which is based on the DCPS model with a multi-zone thermal object and resource state control and the spatio-temporal spectrum of states and disturbances, which allows for optimization of control coordination on the impact correlation interval.
The principle of short-term action during the decentralized coordination of control of distributed cyber-physical systems with multi-zone thermal objects, which is based on the model of the distribution of control influences from the point of their application in space and time, has received further development, which allows limiting the set of controlled elements that are subject to coordination.
The developed theoretical provisions made it possible to create a method of combined active-passive identification of the parameters of a distributed technological object, a modified clustering algorithm based on the nearest neighbor method, a wave algorithm for the coordination of distributed cyber-physical systems with continuous objects, a system of simulation modeling of distributed cyber-physical systems with continuous objects, protected by patents for the invention, a decentralized system for controlling the indoor heating system "Movable Smart Heaters".
Key words: distributed control system, decentralized coordination, cyber-physical system, continuous production facility, sliding coordination, level of coordination, principle of short-term action.
