scholarly journals ENSURING THE OPTIMUM LEVEL OF ELECTRICITY LOSSES IN THE POWER SUPPLY SYSTEMS OF THE ENTERPRISES

2021 ◽  
pp. 61-68
Author(s):  
NATALIA VIKTOROVNA SAVINA ◽  
◽  
YURI VIKTOROVICH MYASOEDOV ◽  
LARISA ANATOLIEVNA MYASOEDOVA ◽  
◽  
...  
Keyword(s):  
Power Supply ◽  
System Approach ◽  
Electric Power System ◽  
Optimum Level ◽  
Optimal Parameters ◽  
Electric Networks ◽  
Adaptive Power ◽  
Supply Systems ◽  
Traction Load

On the basis of the system approach, the analysis of the basic technologies of the intelligent electric power system that provide adaptive management of the electric network is carried out. The expediency of their application for adaptive power quality management in electric networks with traction load by expanding the functions is shown. The variants of their configuration are proposed to improve the quality of electricity and ensure optimal parameters of electricity quality indicators.

scholarly journals APPLICATION OF ACTIVE-ADAPTIVE NETWORK TECHNOLOGIES FOR POWER QUALITY MANAGEMENT IN ELECTRIC NETWORKS WITH TRACTION LOAD

2021 ◽  
pp. 56-61
Author(s):  
NATALIA VIKTOROVNA SAVINA ◽  
◽  
IVAN ALEXANDROVICH LISOGURSKY ◽  
LYDIA NIKOLAEVNA LISOGURSKY ◽  
◽  
...  
Keyword(s):  
Quality Management ◽  
Power Quality ◽  
System Approach ◽  
Electric Power System ◽  
Optimal Parameters ◽  
Electric Networks ◽  
Adaptive Power ◽  
Network Technologies ◽  
Traction Load

On the basis of the system approach, the analysis of the basic technologies of the intelligent electric power system that provide adaptive management of the electric network is carried out. The expediency of their application for adaptive power quality management in electric networks with traction load by expanding the functions is shown. The variants of their configuration are proposed to improve the quality of electricity and ensure optimal parameters of electricity quality indicators.

scholarly journals STATE OF THE ISSUE OF THE POWER SUPPLY SYSTEM'S RELIABILITY

2018 ◽  
pp. 47-79
Author(s):  
A. N. Shpiganovich ◽  
A. A. Shpiganovich ◽  
V. I. Zatsepina ◽  
E. P. Zatsepin
Keyword(s):  
Power Supply ◽  
Production Systems ◽  
Electrical Energy ◽  
Electrical Equipment ◽  
Electric Power System ◽  
Electricity Supply ◽  
Optimum Level ◽  
Industrial Enterprises ◽  
Increased Risk ◽  
Supply Systems

The electric power system of the Russian Federation was most developed in the 80-90s of the last century, after which there was an almost twofold decline in the generation and transmission of  electrical energy in the system with subsequent growth. The main  problem of fuel and energy complexes is the progressive aging of  fixed production assets in conditions of increasing energy  consumption requirements, which is a source of increased risk of  major accidents. In this case, negative disturbances can arise both in the system itself and be external to it and can lead not only to a low  quality of electrical energy but also to interruptions in power supply.  The studies carried out to date are devoted to a quantitative  assessment of the reliability of power supply systems and their  equipment and do not take into account the effects of electrical equipment failures on the characteristics of production processes and the operation of technological machines. To consider the reliability of power supply systems in isolation from the operation of other systems (technological, relay protection, automation, ventilation, dewatering, etc.) means not to use the whole range of measures  aimed at improving the reliability of electricity supply, as a result it is impossible to ensure the optimum level of reliability of electricity  supply. Reliability of the power supply system must be evaluated taking into account the interaction of electrical equipment with the  equipment of all production systems. The problem of increasing the  efficiency of the functioning of industrial enterprises by optimizing  the parameters of the reliability of power supply systems is topical and of great economic importance.

Study of power transformer loading in rural power supply systems

2021 ◽  
Vol 13 (4) ◽  
pp. 282-289
Author(s):  
I. V. Naumov ◽  
D. N. Karamov ◽  
A. N. Tretyakov ◽  
M. A. Yakupova ◽  
E. S. Fedorinovа
Keyword(s):  
Energy Efficiency ◽  
Power Supply ◽  
Rural Areas ◽  
Power Transformer ◽  
Electric Energy ◽  
Power Transformers ◽  
Electric Networks ◽  
Load Factors ◽  
Optimal Load ◽  
Supply Systems

The purpose of this study is to study the effect of loading power transformers (PT) in their continuous use on their energy efficiency on a real-life example of existing rural electric networks. It is noted that the vast majority of PT in rural areas have a very low load factor, which leads to an increase in specific losses of electric energy when this is transmitted to various consumers. It is planned to optimize the existing synchronized power supply systems in rural areas by creating new power supply projects in such a way as to integrate existing power sources and ensure the most efficient loading of power transformers for the subsequent transfer of these systems to isolated ones that receive power from distributed generation facilities. As an example, we use data from an electric grid company on loading power transformers in one of the districts of the Irkutsk region. Issues related to the determination of electric energy losses in rural PT at different numerical values of their load factors are considered. A computing device was developed using modern programming tools in the MATLAB system, which has been used to calculate and plot the dependence of power losses in transformers of various capacities on the actual and recommended load factors, as well as the dependence of specific losses during the transit of 1 kVA of power through a power transformer at the actual, recommended and optimal load factors. The analysis of specific losses of electric energy at the actual, recommended and optimal load factors of PT is made. Based on the analysis, the intervals of optimal load factors for different rated power of PT of rural distribution electric networks are proposed. It is noted that to increase the energy efficiency of PT, it is necessary to reduce idling losses by increasing the load of these transformers, which can be achieved by reducing the number of transformers while changing the configuration of 0.38 kV distribution networks.

scholarly journals USE OF MATHEMATICAL METHODS FOR OPTIMIZATION OF 110 KV ELECTRIC NETWORK DEVELOPMENT

2020 ◽  
Author(s):  
Maksym Hrebenichenko
Keyword(s):  
Power Systems ◽  
Power Supply ◽  
Capacity Constraints ◽  
Power Lines ◽  
Network Development ◽  
Mathematical Methods ◽  
Electric Networks ◽  
Electric Network ◽  
Supply Capacity

At optimization of development of electric networks of power systems voltage and a configuration of networks are chosen, the order of construction of objects of electric networks is established. The criterion of optimality in optimization is the sum of dynamic consolidated costs for all network elements. The decision must take into account the dynamics of development of power systems networks, requirements for reliability and quality of power supply, capacity constraints on power lines and transformer substations.

scholarly journals Method for determining the maximum load of consumers in city power supply systems

2019 ◽  
Vol 139 ◽  
pp. 01078 ◽  
Author(s):  
A.G. Saidkhodjaev ◽  
A.M. Najimova ◽  
A.K. Bijanov
Keyword(s):  
Power Supply ◽  
Maximum Load ◽  
High Accuracy ◽  
New Method ◽  
Electrical Networks ◽  
Electric Networks ◽  
Reliable Determination ◽  
Supply Systems

In this article, we propose a new method for determining the maximum load of electric consumers in urban electric networks, which differs from existing methods in more accurate and reliable determination of the maximum loads. Based on the determination of the maximum loads of the objects of urban electrical networks, it is concluded that the proposed methods are determined by high accuracy and minor errors.

scholarly journals Features of Estimation of Structural Reliability of Power Supply Systems

2019 ◽  
Vol 139 ◽  
pp. 01032
Author(s):  
Boris Papkov ◽  
Vladimir Osokin
Keyword(s):  
Distributed Generation ◽  
Power Supply ◽  
Structural Reliability ◽  
Renewable Energy Sources ◽  
Integral Characteristic ◽  
Electric Power System ◽  
Mathematical Apparatus ◽  
Reliability Indicators ◽  
Demand Changes ◽  
Supply Systems

Development and operation of modern power supply systems of consumers which are the part of distributed generation (DG) systems with their communication with electric power system (EPS) and renewable energy sources (RES) demand changes in estimation of their reliability indicators on the basis of corresponding mathematical apparatus. It is shown that DG systems refer to structures with several overlapping zones of action, which determines their peculiarities, which are represented by some integral characteristic - efficiency of operation, which characterizes the degree of expediency of use of the DG system in different modes. The approach based on evaluation of effectiveness of such systems is offered. Examples of calculation of relatively simple structures of DG systems performing several tasks simultaneously are given.

scholarly journals MANAGEMENT OF REGIMES OF ELECTRICITY SYSTEMS OF RAILWAYS BASED ON TECHNOLOGIES OF NETWORK CLUSTERS

2020 ◽  
Vol 2018 (1) ◽  
pp. 133-134
Author(s):  
Yuriy Bulatov ◽  
Zyuy Chan
Keyword(s):  
Electric Power ◽  
Computer Modeling ◽  
Power Supply ◽  
Quality Of Electric Power ◽  
Supply Systems ◽  
Electricity Systems

On the basis of computer modeling proposed effective methods for managing the modes and quality of electric power in power supply systems for non-traction railroad consumers using intelligent technologies are proposed

scholarly journals Energy profiles as a method for minimizing weight of hybrid power supply systems

2017 ◽  
pp. 5-13
Author(s):  
Arkadiusz Adamczyk
Keyword(s):  
Power Supply ◽  
Energy Demand ◽  
Power Supply System ◽  
Electric Energy ◽  
Energy Profiles ◽  
Supply Systems ◽  
Alternative Solutions ◽  
Analysis Of Performance ◽  
Source Of Information

This article presents an analysis of energy demand by a group of portable military use appliances. This analysis was used by the author to offer an solution aimed at reducing the weight of the power supply system. This solution is based on energy profiles which were derived from the analyses and measurements, and on applying appropriately modified hybrid supply sources. Catalogue data are often used in support of an analysis of performance of electronic appliances. For a user, documents prepared by a manufacturer are the main source of information concerned with the amount and quality of electric energy sources required for the appliance to work properly. Investigations carried out in real conditions often verify this data, which provides a base for seeking alternative solutions in the course of designing new sources of power, e.g. such as the ones proposed in the article.

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