Principles and stages of creation of automatic control systems with a model of complex technological processes

Authors

DOI:

https://doi.org/10.15587/1729-4061.2022.270519

Keywords:

control system, control with model, information-logical scheme, combined mathematical model, algorithm, optimization

Abstract

The object of this study is an effective approach to designing automatic control systems with a model of complex technological processes, which include interrelated and complementary stages from the formulation of the task to the implementation of the control system at the facility. It includes a set of measures, starting with the analysis of the process in its hardware design with the construction of an information and logical scheme to the development of all types of security and commissioning.

The main problem in the implementation of a control system with a technological process model is the limited ranges of adequacy of mathematical models. Therefore, when changing the load on the unit, changing external and internal perturbations, it is necessary to constantly ensure the necessary level of adequacy of the models. It is proposed to use a combined model as a mathematical model of the control object, combining the advantages of analytical and experimental-statistical models. This makes it possible to significantly expand the information base of the resulting model. A simple and effective iterative algorithm for calculating this model is also proposed. It includes sequential steps to determine the parameters of the model by basic dependences (the deterministic part of the model), followed by clarifying them according to the current data from the object (experimental statistical part of the model). The effectiveness of the approach is confirmed by the example of ASC TP of the ammonia synthesis column. By improving the accuracy of determining the control parameters and narrowing the range of their change around the optimal value, the volume of ammonia release increases by 5–8 %.

The application of the described approach on the example of the development of an automatic control system for the technological process of ammonia synthesis confirmed the economic feasibility of implementing the proposed solutions

Author Biographies

Maryna Loriia, Volodymyr Dahl East Ukrainian National University

Doctor of Technical Sciences, Professor

Department of Computer-Integrated Control Systems

Oleksii Tselishchev, Volodymyr Dahl East Ukrainian National University

Doctor of Technical Sciences, Professor

Department of Chemical Engineering and Ecology

Peter Eliseyev, Volodymyr Dahl East Ukrainian National University

PhD, Associate Professor

Department of Computer-Integrated Control Systems

Olga Porkuian, Volodymyr Dahl East Ukrainian National University

Doctor of Technical Sciences, Professor

Department of Computer-integrated Control Systems

Oleksandr Hurin, Volodymyr Dahl East Ukrainian National University

Postgraduate Student

Department of Computer-Integrated Control Systems

Alla Abramova, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”

PhD

Department of Automation Hardware and Software

Sergii Boichenko, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”; Educational and Scientific Institute of Energy Saving and Energy Management

Doctor of Technical Sciences, Professor, Head of Department

Department of Automation of Electrical and Mechatronic Complexes

Scientific and Technical Union of Chemmotologists

References

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Principles and stages of creation of automatic control systems with a model of complex technological processes

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Published

2022-12-31

How to Cite

Loriia, M., Tselishchev, O., Eliseyev, P., Porkuian, O., Hurin, O., Abramova, A., & Boichenko, S. (2022). Principles and stages of creation of automatic control systems with a model of complex technological processes. Eastern-European Journal of Enterprise Technologies, 6(6 (120), 20–29. https://doi.org/10.15587/1729-4061.2022.270519

Issue

Vol. 6 No. 6 (120) (2022): Technology organic and inorganic substances

Section

Technology organic and inorganic substances

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Copyright (c) 2022 Maryna Loriia, Oleksii Tselishchev, Peter Eliseyev, Olga Porkuian, Oleksandr Hurin, Alla Abramova, Sergii Boichenko

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