RADIOELECTRONIC AND COMPUTER SYSTEMS

The subject of study in the article are methods for integrating mathematical models of chemical-technological processes implemented in universal modeling programs into modern SCADA systems for developing and improving methods for controlling these processes. The goal is to develop a control system for the synthesis of acetylene in a kinetic reactor, based on a computer model created in universal modeling programs and integrated into SCADA using open platform communications (OPC) technology. Tasks: to create a mathematical model of the process of synthesis of acetylene based on the selected universal modeling program; to develop a way to integrate the resulting model into modern SCADA using OPC technology; to develop in SCADA a control system for the process of synthesis of acetylene according to a mathematical model as part of a functional human-machine interface and control subsystem algorithms; get transient graphs and prove the efficiency of the control system. Conduct a process study using a mathematical model. The methods used are computer simulation of technological processes; OPC technology; SCADA based management. The following results are obtained. A control system for the acetylene synthesis process based on SCADA Trace-Mode and a mathematical model implemented in the ChemCAD package has been developed, while the model - control system information exchange is implemented based on OPC technology. Checked and proved the efficiency of the resulting control system. A mathematical study of the process was carried out, an experimental dependence of the yield of the final product, acetylene, on the temperature, and consumption of raw materials at the inlet of the reactor was established. Conclusions. The novelty of the results is as follows. A new method is proposed for integrating mathematical models implemented in the ChemCAD modeling package into modern SCADA, based on OPC technology. A study of the process of acetylene synthesis by a mathematical model was carried out, experimental dependences of the acetylene yield on temperature and ethylene consumption at the inlet of the synthesis reactor were obtained. An analysis of the obtained experimental dependences showed the need to use cascade control algorithms to increase the efficiency of controlling the process of acetylene synthesis in a kinetic reactor.

universal modeling programs; OPC interface; SCADA-based control

Yefimov, I. P. SCADA - systema Trace Mode [SCADA - Trace Mode system]. Ul'yanovs'k, Ul'yanovs'kyy derzh. tekhn. un-t. Publ., 2010. 158 p.

Levchuk, I. L., Bilobrova, E. V., Korsun, V. I. Pryntsypy intehratsiyi spetsial'noho prohramnoho zabezpechennya informatsiyno keruyuchykh system v suchasni SCADA systemy [Principles of integration of special information management software into modern SCADA systems]. Systemy obrobky informatsiyi, 2015, no. 5, pp. 141-144.

Sheikus, A. R., Kovalenko, V. L., Kotok, V. A., Bilobrova, O. V., Fesenko, K. O., Verbitskiy, V. V. Study of the features of monitoring the rectification process during automatic control using mobile influences. Journal of Engineering and Applied Sciences, 2020, vol. 15, iss. 1, pp. 122-128.

Pakhomov, A. N. and etc. Osnovy modelyuvannya khimiko-tekhnolohichnykh system [Fundamentals of Modeling of Chemical Technology Systems]. Tambov, Tambo. derzh. tekhn. un-tu Publ., 2008. 80 p.

Yelizarov, I. A. and etc. Intehrovani systemy proektuvannya i upravlinnya: SCADA-systemy [Integrated design and control systems: SCADA systems]. Tambov, FHBOU VPO «TDTU» Publ., 2015. 160 p.

Slavinskaya N., Mirzayeva A., Whitside, R., Starke, J., Abbasi, M., Auyelkhankyzy, M., Chernov, V. A modelling study of acetylene oxidation and pyrolysis. Combustion and Flame, 2019, vol. 210, pp. 25-42.

Hoffmann, M., Büscher, C., Meisen, T., Jeschke, S. Continuous integration of field level production data into top-level information systems using the OPC interface standard, Procedia CIRP, 2016, no. 41, pp. 496-501.

Latif, H., Shao, G., Starly, B. Integrating A Dynamic Simulator and Advanced Process Control using the OPC-UA Standard. Procedia Manufacturing, 2019, vol. 34, pp. 813-819.

Kudryashov, V. S., Ivanov, A. V., Aleksyeyev, M. V. Osnovy prohramuvannya mikroprotsesornykh kontroleriv v tsyfrovykh syste-makh upravlinnya tekhnolohichnymy protsesamy [Fundamentals of microprocessor control roller programming in digital process control systems]. Voronezh, Voronez'kyy derzhavnyy universytet inzhenernykh tekhnolohiy Publ., 2014. 144 p.

SCADA systema Trace Mode 6 [Trace Mode 6 SCADA system]. Kazan', Kazan. derzh. tekhnol. un-tu Publ., 2011. 128 p.

Lipatnikov, H. A., Guzeev, M. S. Avtomatychne rehulyuvannya ob"yektiv teploenerhetyky [Automatic control of thermal power objects]. Vladyvostok, Dalekoskhidnyy derzhavnyy tekh-nyy un-t (DVPY im. Kuybysheva) Publ., 2007. 136 p.