Algorithm of synthesizing energy effective power supply system of industrial enterprises

2020 ◽  
Author(s):  
Vera Dyachenko ◽  
Denys Fedosha ◽  
Anatolii Zabolotnyi
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Effective Power ◽  
Industrial Enterprises

scholarly journals DEVELOPMENT OF AN ALGORITHM FOR CREATING A THREE-DIMENSIONAL GRAPH OF THE TOTAL HARMONIC OF VOLTAGE COMPONENTS RATIO

2021 ◽  
pp. 56-67
Author(s):  
Nadezhda M. Drey ◽  
Ayrat G. Ziganshin ◽  
Georgi M. Mikheev
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Reactive Power ◽  
Short Circuit ◽  
Three Dimensional ◽  
Supply System ◽  
Electrical Network ◽  
Industrial Enterprises ◽  
Harmonic Components ◽  
Dimensional Graph

In the power supply system of industrial enterprises with low installed capacity, a battery of cosine capacitors is used as reactive power compensation devices in most cases. However, in certain modes of operation in such a network due to the presence of electrical receivers, which generate the highest harmonics, there may be resonance phenomena. Therefore, in such a network you should know both the presence of harmonic components and their percentage. It is known that according to GOST 32144-2013 it is necessary to take into account not only the individual harmonic components of the voltage of about 40 harmonics, but also the total ratio of these components. For this reason, the calculation of this parameter in the power supply system of consumers is an urgent task. In this paper the principle of structure of the three-dimensional graph of the total factor of harmonic components of voltage is revealed. The arguments for the dependence of this factor on the most important parameters of the electrical network, such as system short-circuit power, capacitor bank, load consumption are given. The authors have developed an algorithm for creating a three-dimensional graph of the total harmonic voltage components coefficient with the disclosure of the principles of its construction. As an example, the paper presents graphical dependencies: kU = f(SКZ , QBK ); kU = f(SКZ , PNG ); kU = f(QBK , PNG).

scholarly journals PROSPECTS AND BACKGROUND INTRODUCTION OF AUTONOMOUS POWER SUPPLY SYSTEMS FOR AGRICULTURAL ENTERPRISES

2020 ◽  
pp. 51-63
Author(s):  
Ihor Kupchuk ◽  
Vitalii Yaropud ◽  
Nataliia Telekalo ◽  
Valerii Hraniak
Keyword(s):  
Power Supply ◽  
Alternative Energy ◽  
Power Supply System ◽  
Agricultural Sector ◽  
Lithium Ion ◽  
Supply System ◽  
Industrial Complex ◽  
Combined System ◽  
Agricultural Enterprises ◽  
Industrial Enterprises

The agro-industrial complex is one of the most stable in terms of revenue to the budget of intersectoral formations, in which significant amounts of electricity produced using fossil fuels, mainly imported, fuel resources are consumed for the implementation of production processes, which poses a threat to its effective functioning and makes in the research article. The purpose of the article is to assess the potential and determine promising methods of decentralized power supply for agro-industrial producers based on the analysis of modern technical and technological solutions in the field of electrical engineering and the synthesis of a promising scheme for a combined autonomous power supply system for agricultural enterprises. The article assessed the technical and technological capabilities for the use of autonomous electrical installations by small and medium-sized enterprises of the agricultural sector, operating on the principle of conversion of renewable sources, taking into account the natural and climatic potential of the Vinnytsia region. As a result of a comparative analysis of the operational characteristics of the known methods of accumulating electric energy, it was found that in the conditions of autonomous power supply of small and medium-sized agro-industrial enterprises due to the conversion of alternative energy sources, the most functionally and economically justified option is the use of energy storage systems based on flywheels with partial use of a backup unit lithium-ion batteries. Based on domestic and foreign experience, a promising scheme of a combined autonomous power supply system for small and medium agricultural enterprises was proposed and priority areas for further research were formed to improve the efficiency of such a system. The study of technical and technological prerequisites for the development of a combined system of autonomous power supply and its components was carried out using methods of analysis, generalization and a systematic approach. The potential advantages and effect of the proposed scheme implementation are based on the laws of development of technical and electric power systems.

scholarly journals APPLICATION OF SOME MODELS OF POWER SUPPLY SYSTEMS WITH AN EXAMPLE OF TAKING INTO ACCOUNT THEIR RELIABILITY FOR INDUSTRIAL ENTERPRISES IN PRACTICE

2021 ◽  
pp. 3-14
Author(s):  
Yaroslav Bederak ◽  
Viktor Taradai ◽  
Hanna Kyselova ◽  
Vladlen Kyselov
Keyword(s):  
Power Supply ◽  
Finite State Machine ◽  
Power Supply System ◽  
Sewage Treatment ◽  
Electrical Equipment ◽  
State Machine ◽  
Supply System ◽  
Industrial Enterprises ◽  
Finite State ◽  
Supply Systems

The publication presents the most common and promising models and schemes for replacing the power supply system of industrial enterprises, and an example of their use in practice for power supply to sewage treatment plants of a chemical enterprise. Various types of models are considered (in tabular form, in the form of an electrical replacement circuit or in the form of a finite-state machine), as well as a logical-probabilistic approach to the representation of the power supply system. The use of automation systems in power supply systems of industrial enterprises can reduce the total number of accidents, prevent their development, reduce the time of disconnections of electrical installations and downtime of mechanisms, and also allows to transfer to work without constant maintenance a significant number of electrical installations of substations, which, in turn, leads to a reduction in the number of service personnel, increase labor productivity and reduce maintenance costs. One of the main tasks on the way to automating the power supply system of enterprises is to present it in the form of a model. The list of replacement models and schemes that can be used to represent the power supply system of enterprises is quite large, and choosing the appropriate model, for that best meets the requirements of the final goal is quite a complex scientific task. The purpose of this article is to analyze the most common and promising models and schemes for replacing the power supply system and provide recommendations on their application in practice for power supply to sewage treatment plants of a chemical enterprise. Presenting the power supply system in the form of a table allows you to simplify and visually perform certification of electrical equipment, identify problem and weak points in the power supply system of industrial enterprises. Such a table proves that a large amount of electrical equipment at lower levels depends on a single electrical device at higher levels. The representation of the power supply system in the form of a three-phase symmetric replacement circuit can be used to calculate short-circuit currents in symmetric and unbalanced modes in the MatLab program and similar. Using the model of the power supply system in the form of a finite-state machine allows you to visually check the reliability of power supply to consumers, simplify the design of the power supply system of an industrial enterprise, select the state of switching devices in the power supply system and take into account the advantages and disadvantages of each state. It is advisable to use the methods discussed in this article to represent the power supply system (in tabular form, in the form of a finite-state machine or a three-phase symmetric replacement scheme) and their further application and use in automated power supply systems of industrial enterprises. The logical-probabilistic method allows us to consider the issue of power supply reliability based on the theory of logical algebra.

scholarly journals The impact of electrical power quality indicators on the accuracy of industrial power supply system management

2020 ◽  
Vol 216 ◽  
pp. 01068
Author(s):  
Alexander Sevostyanov ◽  
Gennady Vagin
Keyword(s):  
Power Quality ◽  
Quality Indicators ◽  
Power Supply ◽  
Power Supply System ◽  
Electrical Power ◽  
Supply System ◽  
Industrial Enterprises ◽  
Measuring Devices ◽  
Technical Solutions ◽  
The Impact

The impact of power quality indicators and synchronized vector measurement device errors on electrical mode parameter assessment is examined with using a model of a simple industrial power supply system. There are underestimated requirements for the accuracy of synchronized vector measuring devices (SVMDs) with regard to their use in technical solutions designed to control the power supply modes at industrial enterprises.

Development of the algorithm for the selection of a wind generator-based autonomous power supply system

2019 ◽  
Vol 2 (1) ◽  
pp. 8-16 ◽  
Author(s):  
P. A. Khlyupin ◽  
G. N. Ispulaeva
Keyword(s):  
Wind Turbines ◽  
Power Supply ◽  
Alternative Energy ◽  
Power Supply System ◽  
Supply System ◽  
Power Generators ◽  
Energy Devices ◽  
Wind Generator ◽  
Alternative Energy Sources ◽  
Selection Of

Introduction: The co-authors provide an overview of the main types of wind turbines and power generators installed into wind energy devices, as well as advanced technological solutions. The co-authors have identified the principal strengths and weaknesses of existing wind power generators, if applied as alternative energy sources. The co-authors have proven the need to develop an algorithm for the selection of a wind generator-based autonomous power supply system in the course of designing windmill farms in Russia. Methods: The co-authors have analyzed several types of wind turbines and power generators. Results and discussions: The algorithm for the selection of a wind generator-based autonomous power supply system is presented as a first approximation. Conclusion: The emerging algorithm enables designers to develop an effective wind generator-based autonomous power supply system.

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