Development of the functional model to control the levels of electricity consumption by underground iron­ore enterprises

Authors

DOI:

https://doi.org/10.15587/1729-4061.2018.148606

Keywords:

control algorithm, optimization of electricity consumption by iron ore enterprises, functional-technological structure, zonal tariffs

Abstract

This paper reports results of the study into assessing the features and devising a tactic for the development of structures for the systems that control levels of electricity consumption by receivers at iron-mining enterprises employing the underground technique for extracting iron ore raw materials (IOR). It is shown that the advantages of the proposed structure, compared with existing variants, is the implementation within its functional of control solutions that are predefined by the specificity in the operational technology of electric energy (EE) receivers at these types of enterprises. The solution became possible based on the unification of the electrical energy complex of these enterprises into a single structure: electricity supply systems ‒ EE receivers. A list of consumers has been compiled, which form a shape of daily timetables of electrical loads at an iron ore enterprise ‒ the so-called stationary installations that consume more than 80 % of the total consumption of EE. It is these consumers that were included in the category of EE receivers‒regulators. Individual optimization of operational modes of the work of these receivers over a day's underlies the logic of control over the levels of EE consumption. Such a structure of optimization appears appropriate based on the fact that a price for the EE consumed by an enterprise over 24 hours is formed by the energy-generating organization differentiated in a function of zonal tariffs: peak, half-peak, night. Upon determining a dependence of energy consumption levels by the receivers-regulators on controlling and perturbing variables, it has been established, and recommended for implementation, to control the level of EE consumption based on the substantiated and predefined criteria, whose essence comes down to the minimization of this indicator.

The present work has synthesized a mathematical model, based on which the algorithm of control was designed. This makes it possible to not only minimize the level of power consumption by taking into consideration the zonal tariff prices for the EE consumed, but to control flows in the cases of possible limitations for the levels of electricity supply by the side that supplies power to an energy system.

Author Biographies

Oleg Sinchuk, Kryvyi Rih National University Vitaliya Matusevycha str., 11, Kryvyi Rih, Ukraine, 50027

Doctor of Technical Sciences, Professor, Head of Department

Department of automation electromechanical systems in the industry and vehicles 

 

Ihor Sinchuk, Kryvyi Rih National University Vitaliya Matusevycha str., 11, Kryvyi Rih, Ukraine, 50027

PhD, Associate Professor

Department of automation electromechanical systems in the industry and vehicles 

Ihor Kozakevych, Kryvyi Rih National University Vitaliya Matusevycha str., 11, Kryvyi Rih, Ukraine, 50027

PhD

Department of automation electromechanical systems in the industry and vehicles 

Vladislav Fedotov, Kryvyi Rih National University Vitaliya Matusevycha str., 11, Kryvyi Rih, Ukraine, 50027

Senior Lecturer

Department of automation electromechanical systems in the industry and vehicles 

Vadim Serebrenikov, Donetsk National University of Economics and Trade named after M. Tugan-Baranovsky Tramvaina str., 16, Kryvyi Rih, Ukraine, 50027

PhD, Associate Professor

Department of higher mathematics and information systems 

Natalya Lokhman, Donetsk National University of Economics and Trade named after M. Tugan-Baranovsky Tramvaina str., 16, Kryvyi Rih, Ukraine, 50027

PhD

Department of Economics and Business

Tatiana Beridze, Zaporizhzhia National University Zhukovskoho str., 66, Zaporizhzhia, Ukraine, 69600

PhD, Associate Professor

Department of Economic Cybernetics

Serhii Boiko, Kremenchuk Flight College of National Aviation University Peremohy str., 17/6, Kremenchuk, Ukraine, 39600

PhD

Department of power supply and control systems

Andrey Pyrozhenko, Kryvyi Rih Metallurgical institute of the National Metallurgical Academy of Ukraine StephanaTilhy str., 5, Kryvyi Rih, Ukraine, 50006

PhD, Senior Researcher

Department of power supply

Аlena Yalova, Kryvyi Rih College of National Metallurgical Academy of Ukraine Medychna str., 4, Kryvyi Rih, Ukraine, 50006

PhD

Department of power supply and control systems

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Published

2018-11-29

How to Cite

Sinchuk, O., Sinchuk, I., Kozakevych, I., Fedotov, V., Serebrenikov, V., Lokhman, N., Beridze, T., Boiko, S., Pyrozhenko, A., & Yalova А. (2018). Development of the functional model to control the levels of electricity consumption by underground iron­ore enterprises. Eastern-European Journal of Enterprise Technologies, 6(3 (96), 20–27. https://doi.org/10.15587/1729-4061.2018.148606

Issue

Section

Control processes