Digital technologies for managing anthropogenic risks in electric power industry

2021 ◽  
Vol 13 (4) ◽  
pp. 248-256
Author(s):  
V. O. Akulichev ◽  
E. P. Grabchak ◽  
S. V. Mishcheryakov ◽  
A. A. Talalaev
Keyword(s):  
Electric Power ◽  
Energy Production ◽  
Business Processes ◽  
Optimization Theory ◽  
Electric Power Industry ◽  
Mental Condition ◽  
Predictive Analysis ◽  
Electrical Networks ◽  
Multi Agent ◽  
Anthropogenic Risks

The article examines the information and analytical technology implemented during the operation of electrical networks, based on the capabilities of multi-agent monitoring of the somatic and mental condition of the staff of power grid companies and predictive analysis of anthropogenic risks of energy production within the framework of a risk-based approach to human resource management. The analysis includes instrumental monitoring, assessment of indicators (using objective data) characterizing the condition of operational managers, operational and maintenance staff involved in real technological and business processes for servicing equipment of network companies using optimization theory methods, fuzzy sets, index analysis, provision of integral information to operational managers and management of energy companies, the formation of proposals on the areas of investment in the development of their human resources based on solving the optimization problem of minimizing damage due to wrong actions, inaction and violation of safety requirements for energy production. It is proposed to use a system of dimensionless index indicators for assessing the condition of staff, predictive analysis of the success of their professional activities and the formation of its ontological model in order to manage anthropogenic risks to ensure reliable and safe functioning of energy production with the possibility of developing measures and scenarios of impacts on staff within the production process. The article presents approaches to the formation of monitoring technology, which ensures the construction of unified systems for recording the condition of staff operating electric power facilities, statistics of failures due to staff's fault to determine the optimal type, composition and cost of impact on staff, improving their health based on multi-agent analysis of monitoring data, allowing to direct the flow of events in accordance with the conditions set by the availability of funds for these purposes. The authors have developed a mathematical apparatus, proposed devices and software, with the help of which an automated analysis of the indices of the condition of staff of each category, servicing equipment units (assemblies) and the formation of scenarios of impacts on it (agent-based modeling of condition-controlled behavior) has been carried out.

Approach to the location of distributed generation sources in the structure of electrical networks

2021 ◽  
pp. 75-86
Author(s):  
A. Gai ◽  
◽  
V. Gulevich ◽  
Keyword(s):  
Electric Power ◽  
Quality Indicators ◽  
Distributed Generation ◽  
Power Supply ◽  
Alternative Energy ◽  
Electric Power Industry ◽  
Energy System ◽  
Electrical Network ◽  
Electrical Networks

Today, the electricity supplier is not able to declare the possible level of quality of electricity supply, and the consumer simply does not have the opportunity to buy such "high-quality" electricity. In such conditions, a differentiated approach to tariff formation is inevitable, which has been implemented in practice today, albeit in its infancy. Further improvement of the tariff-forming mechanism is impossible without creating a "flexible" dependence of the tariff on the quality indicators of the consumer's power supply. Quality indicators, in turn, are based, on the one hand, on the methods and approaches for their determination, and on the other, on statistically reliable data on the elements that make up the equipment in the "generation-consumer" chain. In recent years, there has been a tendency to change the concept of development of the electric power industry, since preference is given to the development of sources of distributed generation. Distributed generation is understood as a source of electrical energy directly connected to the distribution electrical network or connected to it by consumers. Ensuring the socio-economic stability of society and a decent quality of life for the population largely depends on the reliability and efficiency of the functioning of the infrastructure for the supply of fuel and energy resources, in particular, electricity. Excessive losses of electricity during its production, transportation and distribution, as well as an unacceptable level of harmful emissions into the atmosphere, are the cause of interruptions in power supply to consumers and even the threat of systemic accidents in the United Energy System (UPS) of the country. The introduction of alternative energy sources in electric power systems, in addition to reducing the harmful impact on the environment and solving the problems associated with waste pollution during electric power generation, will reduce the use of natural resources and relieve the backbone and distribution power lines. As part of the scientific search, an approach was proposed, which is the basis for calculations to determine the optimal installation locations for sources of distributed generation of an average overhead line. The results obtained are presented in the framework of a joint technical meeting of leading specialists of operating enterprises, the customer and the staff of the Department of Power Supply named after V.M. Sinkova NULES of Ukraine.

scholarly journals On the influence of electric power quality on the decimation of currents and voltages of utility frequency

2021 ◽  
Vol 288 ◽  
pp. 01022
Author(s):  
Gennady Vagin ◽  
Alexander Kulikov ◽  
Alexander Sevostyanov ◽  
Anatoly Fitasov
Keyword(s):  
Electric Power ◽  
Power Quality ◽  
Harmonic Component ◽  
Electric Power Industry ◽  
Digital Signal ◽  
Electrical Energy ◽  
Sampling Frequency ◽  
Electrical Network ◽  
Electrical Networks ◽  
Electric Power Quality

The electric power industry cannot develop without analyzing the factors that affect the shape of currents and voltages when determining the parameters of the electric network mode in the context of the introduction of modern means of intellectualization into the structure of power supply systems. The share of equipment affecting the electric power quality reaches 90% in modern electrical networks. This leads to the appearance of noise in the network that reduces the quality of electrical energy, voltage distortion by higher harmonic components in particular, and affects the adequacy of the parameters of the electrical network adopted by automatic control devices. The article presents the results of digital signal processing containing distortions in the form of a harmonic component with a decrease in the sampling frequency. It is shown that a decrease in the sampling frequency does not exclude the effect of higher harmonics on the result of processing signals, including high-frequency distortions.

scholarly journals ENERGY CHARACTERISTICS OF PHASE REGULATING DEVICE BASED ON “STAR” CIRCUIT

2021 ◽  
Vol 28 (3) ◽  
pp. 71-79
Author(s):  
Lev Kalinin ◽  
◽  
Dmitrii Zaitsev ◽  
Mihai Tirsu ◽  
Irina Golub ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Smart Grid ◽  
Electric Power ◽  
Electric Power Industry ◽  
Power Industry ◽  
Phase Shifting ◽  
Electrical Networks ◽  
Energy Characteristics ◽  
Electric Grids ◽  
Technical Solutions

The electric power industry development mean increases the electric grids flexibility through the use of various devices type (FACTS) controlled by means of power electronics and being an element of the Smart Grid. This type of device includes a phaseshifting transformer (PST), which redistributes power flows in the branches of electrical networks. In connection with the relevance of this topic, new technical solutions appear that implement similar functions, which entails the need for a comparative analysis of such developments in order to optimize the energy characteristics of this kind of equipment. The aim of the work is to develop schematic version of the PST made according to the "star" scheme and analyze its operation in typical modes. During the study, the energy characteristics of the device were determined. The possibility of reducing the typical power of the phase-shifting device due to the use of capacitive compensation is analyzed.

scholarly journals Calculation of Technological Consumption (Loss) of Electricity in Modern 0.38–10 kV Electrical Distribution Networks

2018 ◽  
Vol 61 (5) ◽  
pp. 408-422 ◽  
Author(s):  
M. I. Fursanov ◽  
A. A. Zalotoy ◽  
V. V. Makarevich
Keyword(s):  
Electric Power ◽  
General Scheme ◽  
Electric Energy ◽  
Flow Distribution ◽  
Electric Power Industry ◽  
Distribution Networks ◽  
Distribution Coefficients ◽  
Technological Condition ◽  
Electrical Networks ◽  
Distribution Lines

. New conditions of functioning of electric power industry, tougher of requirements to technological condition of the industry predetermined transition to restructuring of electric networks on the basis of innovative structure of SMART GRID. This leads to the improvement of traditional tasks of calculation and analysis of modes and technological consumption (loss) of electricity. The authors have developed a promising method of operational calculations of technical losses of electricity in modern electrical networks of 0.38–10 kV on the basis of telemechanical graphs of loads on the head sections of distribution lines, in the area of additional installation of digital metering devices and of sources of distributed generation. The method proposes a new technique for determining the flow of electric energy in the sections of distribution lines. This is done as follows. First, according to the data of additional measurements of the network and taking into account the calculated no-load losses of transformers, electricity flows are calculated in the head sections of 6–10 kV lines. Then, according to the obtained data and the measured values of the active and reactive energy graphs of the head sections, the electric power flows targeted for their subsequent distribution over all sections of the 0.38–10 kV network are determined, taking into account the load losses of electricity and the flow distribution coefficients. The distribution coefficients are the fractions of the calculated phase loads of the 0.38 kV network of their total value. Then, according to the obtained data and the measured values of the active and reactive energy graphs on the head sections, the electric power flows intended for their subsequent distribution over all sections of the 0.38–10 kV network are determined, taking into account the load losses of electricity and the flow distribution coefficients. The basic analytical relations concerning the estimation of losses and mode as well as an example of calculation of technological consumption (loss) of electricity in the general scheme of the distribution network of 0.38; 6 and 10 kV are given. The latter is performed for a single (first)stage of load graphs.

scholarly journals Problems in Assessing Reliability and Efficiency of Operational Dispatch Control in the Electric Power Industry of Russia

2021 ◽  
Vol 21 (2) ◽  
pp. 33-40
Keyword(s):  
Electric Power ◽  
Scientific Community ◽  
Business Processes ◽  
Electric Power Industry ◽  
Energy System ◽  
Power Industry ◽  
Practical Result ◽  
Efficiency Assessment ◽  
Regulatory Bodies ◽  
Technical Solutions

Currently the issues of reliability and efficiency assessment of the operation and dispatch control of the Unified Energy System of Russia remain unreported and require the attention of the scientific community, electric power industry stakeholders, as well as federal and regional regulatory bodies. The paper studies the structure, mechanisms of interaction between the operational dispatch control participants and the electric power industry, regulatory legal acts, as well as the practice of operational dispatch control of the Unified Energy System of Russia and the electric power industry of foreign states. The existing system for assessing the reliability and efficiency of the operation and dispatch control of the Unified Energy System of Russia is considered. The study employs such methods as analysis, synthesis, generalization, abstraction, comparative and logical methods. The paper highlights the impossibility of unambiguous perception by all subjects of the electric power industry as a justification for technical solutions, argumentation of their own actions and in other business processes, justification of the position of ensuring reliability, due to the absence of a clearly developed regulatory framework in the field of reliability (generally accepted apparatus and terminological certainty). The paper substantiates the need for monitoring and assessing the reliability and efficiency of operational dispatch control in the electric power industry. The problems of monitoring and evaluating operational dispatch control in the electric power industry are considered. The practical result of the work is suggested drafted organizational structure for monitoring the reliability and efficiency of operational dispatch control in the power industry.

scholarly journals DIGITAL MODELS OF DISTRIBUTION ELECTRIC NETWORK OF IRAQ

2020 ◽  
Vol 2020 (1) ◽  
pp. 187-188
Author(s):  
Fadel Bassam ◽  
Andrey Kryukov
Keyword(s):  
Smart Grid ◽  
Power Systems ◽  
Electric Power ◽  
Electric Power Industry ◽  
Electric Power Systems ◽  
Power Industry ◽  
Electrical Networks ◽  
Digital Models ◽  
Electric Networks ◽  
Phase Coordinates

The restoration and development of Iraq's electric power industry is planned to be carried out on the basis of the concept of intelligent electric networks (smart grid). To implement this concept, it is necessary to create integrated digital models of electrical networks. Such models can be implemented on the basis of methods and tools for modeling electric power systems in phase coordinates. The report presents the results of modeling normal and emergency modes of distribution electric networks of 11 kV.

scholarly journals Specific Features of Redistribution of Property in Russia's Electric Power Industry

2020 ◽  
Vol 11 (4) ◽  
Author(s):  
Galina Sheveleva
Keyword(s):  
Comparative Analysis ◽  
Electric Power ◽  
Institutional Investors ◽  
Energy Production ◽  
Electric Power Industry ◽  
Private Investment ◽  
Power Industry ◽  
Share Capital ◽  
Foreign Companies ◽  
Reform Period

The privatization of the generating assets of the Russian electric power industry during its reform did not solve one of the main tasks related to attracting private investment. In the post-reform period, there was a constant redistribution of property, primarily in domestic wholesale and territorial generating companies. The specifics of such redistribution, leading to additional significant risks of lost profits for investors, were not considered. They were revealed through a comparative analysis of the composition of the main shareholders of these companies in the post-reform period, mainly based on the results of 2009 and 2019. The following main features of the redistribution of property have been determined: its permanent redistribution; the growing presence of the state in the competitive segment of energy production; increased concentration of ownership; growth in the number of offshore foreign companies; insignificant share in the share capital of institutional investors and individuals.

scholarly journals Modern Electric Power Terminology: Structural and Semantic Aspects

2021 ◽  
Vol 7 (4) ◽  
pp. 536-540
Author(s):  
A. Galiakberova
Keyword(s):  
Renewable Energy ◽  
Everyday Life ◽  
Electric Power ◽  
Energy Production ◽  
Electric Power Industry ◽  
Power Industry ◽  
Scientific Field ◽  
The State ◽  
Syntactic Features ◽  
The World

The article under discussion is devoted to the study of general issues of terminology and terminological activity in the field of electric power on the material of English, Russian and Uzbek languages. The development of electric power industry affects the state of different industries and everyday life of people all over the world. This industry concerns energy production, transmission, distribution and sale. Accordingly, all countries of the world pay due attention to it, and states carry out obligatory regulation in this sphere. The author of the article examines semantic, morphological and syntactic features of renewable energy terminology in order to determine the most productive way of terminology in this scientific field.

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