scholarly journals A Methodological Approach to the Assessment of the Impact of Digital Technologies Development in Energy Industry on Electricity Price and Demand in a Region

2020 ◽  
Vol 209 ◽  
pp. 06006
Author(s):  
Elena Galperova ◽  
Vasiliy Galperov

The relevance of this study is due to the importance of assessing the prospective dynamics and structure of demand for energy carriers when developing and making strategic decisions in the field of energy and economic security of the country and its regions. The advance of digital technology redefines the properties of electric power supply systems, erases the boundary between electric power producers and consumers, and impacts the formation of electricity price and demand in the region. This study presents a method of electricity costing in the regional power system, which serves as an integral part of the approach to assessing the impact of intelligent systems development on the demand for electricity in the region. The approach is unique in that it simulates the behavior of electricity consumers and producers of various types as they pursue their own interests and assesses the impact of this behavior on the demand and price of electricity in the regional power system. Determining the cost of electricity in the system is based on the consistent alignment of the required amount of electricity consumption with the capabilities of producers seeking to achieve their best economic performance. Each producer is described as an optimization model, which is a standalone agent in a multi-agent power system model.

10.29007/13mm ◽  
2018 ◽  
Author(s):  
Tarun Patel ◽  
Anuradha Deshpande

In today’s world electric power demand is increase steadily. In order to meet this increasing demand superconducting cable can be use instead of conventional AC cable in the power system. The Superconducting cable has some different characteristic than conventional AC cable. If this cable is installed in the power system, then there are some effects introduced on the fault current level. These effects on the fault current level can further have an impact on the power system protection. So there is a need to analyze the impact of a superconducting cable on power system protection and determine its impedance under a fault condition. This paper presents the impacts of the fault current level on a superconducting cable under fault condition in power system. Different types of fault are present in this paper like LG fault, LL fault, LLG fault, LLL fault.


2018 ◽  
Vol 10 (11) ◽  
pp. 4140 ◽  
Author(s):  
Seungchan Oh ◽  
Heewon Shin ◽  
Hwanhee Cho ◽  
Byongjun Lee

Efforts to reduce greenhouse gas emissions constitute a worldwide trend. According to this trend, there are many plans in place for the replacement of conventional electric power plants operating using fossil fuels with renewable energy sources (RESs). Owing to current needs to expand the RES penetration in accordance to a new National power system plan, the importance of RESs is increasing. The RES penetration imposes various impacts on the power system, including transient stability. Furthermore, the fact that they are distributed at multiple locations in the power system is also a factor which makes the transient impact analysis of RESs difficult. In this study, the transient impacts attributed to the penetration of RESs are analyzed and compared with the conventional Korean electric power system. To confirm the impact of the penetration of RESs on transient stability, the effect was analyzed based on a single machine equivalent (SIME) configuration. Simulations were conducted in accordance to the Korean power system by considering the anticipated RES penetration in 2030. The impact of RES on transient stability was provided by a change in CCT by increasing of the RES penetration.


2019 ◽  
Vol 116 (51) ◽  
pp. 26078-26084 ◽  
Author(s):  
Robert A. Holland ◽  
Kate Scott ◽  
Paolo Agnolucci ◽  
Chrysanthi Rapti ◽  
Felix Eigenbrod ◽  
...  

Given its total contribution to greenhouse gas emissions, the global electric power sector will be required to undergo a fundamental transformation over the next decades to limit anthropogenic climate change to below 2 °C. Implications for biodiversity of projected structural changes in the global electric power sector are rarely considered beyond those explicitly linked to climate change. This study uses a spatially explicit consumption-based accounting framework to examine the impact of demand for electric power on terrestrial vertebrate biodiversity globally. We demonstrate that the biodiversity footprint of the electric power sector is primarily within the territory where final demand for electric power resides, although there are substantial regional differences, with Europe displacing its biodiversity threat along international supply chains. The relationship between size of individual components of the electric power sector and threat to biodiversity indicates that a shift to nonfossil sources, such as solar and wind, could reduce pressures on biodiversity both within the territory where demand for power resides and along international supply chains. However, given the current levels of deployment of nonfossil sources of power, there is considerable uncertainty as to how the impacts of structural changes in the global electric power system will scale. Given the strong territorial link between demand and associated biodiversity impacts, development of strong national governance around the electric power sector represents a clear route to mitigate threats to biodiversity associated with efforts to decarbonize society over the coming century.


Author(s):  
Stanislav Vasylishyn ◽  
Oleksandr Ulyanchenko ◽  
Tetiana Bochulia ◽  
Yuliia Herasymenko ◽  
Oleksandr Gorokh

Purpose. Under the conditions of strengthening of the destructive effects of the global economic crisis and the growing number of risks of agribusiness, there is a problem in finding the ways to improve accounting and analytical support as the only reliable source of the relevant and accurate information needed for economic security management. The purpose of the article is to substantiate the directions to improve the analytical basis as a component of accounting and analytical support of economic security management of the agricultural enterprises. Methodology / approach. The methodological basis of the research is a dialectical method of cognition of the complex economic phenomena. Consideration of the analytical support of complex management processes took place using a systematic approach, analysis and synthesis. Using an integral approach, a methodology for assessing and analyzing economic security of the agricultural enterprises is developed. This methodology approach includes the parameters of financial, social, resource and environmental security. Results. The analysis of the theoretical and methodological foundations of accounting and analytical support of economic security management showed a variety of the approaches to the choice of the indicators that describe the level of economic security. The situation is complicated by the need to analyze the information that may be relevant for management decisions in conditions of uncertainty. Under these conditions, it is proposed to implement a model of analytical support for economic security management under conditions of uncertainty and growing risks and threats to the business environment of the agricultural enterprises, which should be based on the use of general economic, statistical, integral and econometric approaches. It is determined that in the process of counteracting the risks and threats of the external and internal environment of the agrarian business the use of the integral methods of assessing economic security of the agricultural enterprises becomes crucial. It is substantiated that the most expedient in terms of achieving strategic goals of the enterprise, maintaining its competitive advantages and ensuring sustainable development is the use of integral assessment of economic security, which should be based on a synergistic approach to analysis of 25 indicators of financial, social, resource and environmental components. The approach was tested on the example of 24 agricultural enterprises of Kharkiv region (Ukraine) of crop specialization (2019). The model is also used to analyze the dynamics of the level of economic security under conditions of individual agricultural enterprises of different organizational and legal forms of management (2014–2019).  Originality / scientific novelty. According to the results of the research, a methodological approach to determination of the integral level of economic security of the agricultural enterprises has been improved, based on the impact of the indicators of its individual components, which, at the same time, improves the analytical support of economic security management and strengthens verification, forecasting, preventive, planning and control functions of accounting and analytical support of management mechanisms. Practical value / implications. The practical significance of the proposed approaches consists of the possibility of positioning the enterprises in terms of optimal, satisfactory, shaky and crisis economic security zones, as well as analyzing the dynamics of the integral level of economic security, which takes into consideration the causal relations of the key areas of the agrarian business under conditions of uncertainty.


2020 ◽  
pp. 157-169
Author(s):  
Iryna Reshetnikova ◽  
Henefa Shvydanenko ◽  
Kateryna Boichenko

This article generalizes the arguments and counterarguments within the scientific discourse concerning the problems of integrated development of enterprises in the modern market economy. The main purpose of the research conducted is to create a methodological approach to the assessment and improvement of the integrated development efficiency of the Ukrainian light industry enterprises on the grounds of key determinants identification. For ensuring an extensive and systematic approach in this study, a three-step methodological base has been adopted. The interpretation and synthesis of high-quality data through sifting and sorting materials on key issues and subject matter of enterprise development in the context of integration have been conducted. The tendencies of development of the Ukrainian light industry enterprises have been analyzed to identify the key determinants. An assessment of their impact on the performance of integrated enterprise development has been made. The conducted research used the dialectical, structural and analytical as well as structural and functional analysis as a methodological tool. Methods for multicriteria analysis were used to determine the impact of the identified determinants, in particular, the calculation of the multivariate utility function and the normalization of determining factors. The article shows the results of the analysis of the light industry enterprises development with the help of such key determinants as providing of their own raw materials, availability of specialized mechanical engineering, repair base, properly qualified personnel, operating enterprises development. The integrated development of fifteen light industry enterprises has been diagnosed with the help of such main determinants as financial and resource support, intellectual and innovative potential, economic security, risk level, self-integration, the synergistic effect of integrated business processes. A group of enterprises has been identified, which the development level in the context of its integration is lower than estimated by the methods of classical performance diagnostics at the present stage. The group of enterprises has been identified, where integration processes are effective and have prospects for development. It is established that the integrated development implementation, due account being taken of the full complex of its determinants will promote greater usefulness and efficiency of the studied light industry enterprises functioning. The results of the conducted study can be useful for the efficiency improvement of domestic enterprises based on the integration Keywords efficiency, integrated development, utility, model, factor.


2021 ◽  
Vol 17 (10) ◽  
pp. 1855-1874
Author(s):  
Natal’ya V. KRIVENKO ◽  
Ol’ga E. KROPOTINA ◽  
Viktor G. KRYLOV ◽  
Aleksandr V. TRYNOV

Subject. The article examines processes of import substitution in Russia and its regions within the framework of ensuring the economic security of the country. Objectives. The aim is to substantiate a methodological approach to determining the impact of innovative component of import substitution on the economic security of the region. Methods. The study employs the method of convolution and the index method. Results. We analyzed investment and innovation activity of organizations in recent years. Along with positive trends, we revealed a decrease in the share of organizations engaged in technological innovations in mechanical engineering and in the field of scientific research. To assess the impact of innovative component of import substitution on the economic security of the region, we determined the relative dynamics and convolution of innovation costs, investment volumes and innovative goods, exports and imports. We obtained estimated coefficients of indicators’ increase to achieve normative values of import substitution and economic security. We tested the methodology, using the mechanical engineering of the Sverdlovsk Oblast case. Conclusions. The presented methodological approach is universal and can be applied at the level of the constituent entities of the Russian Federation.


Author(s):  
Syarifuddin Nojeng ◽  
Syamsir Syamsir ◽  
Reny Murniati

Transient stability analysis is conducted to determine the ability of the electric power system in maintaining the operating stability after a major disturbance. The disturbance can be trigger an impact on the stability of the rotor angle, voltage, and system frequency which can cause loss of synchronization. In this paper, the impact of the interconnection of the Tombolo-Pao mini hydro power plant (MHPP) on the stability of the system was analyzed by several scenarios to determine the behavior of system parameters in a 20 kV system interconnection network. This research is an implementation of regulatory provisions relating to the study of the connection to the PLN distribution network through by regulator. Based on the result of simulation study, transient stability of generators at TomboloPao power plant about 0.1 second, will not occur with network configuration according to modeling activation of anti-islanding protection of Tombolo Pao Power Plant which is set by 2 second. The simulation results show that the location of the disturbance in the electric power system has been influenced by the behavior of the power plant (synchronous generator) which can lead to the instability of the micro-hydro connected to the micro-grid system 20 kV.


2020 ◽  
Vol 1 (10) ◽  
pp. 117-127
Author(s):  
D. V. GORDIENKO ◽  

The creation of the Union State of Russia and Belarus can change the level of protection of the national economy of the Russian Federation from external and internal threats. This change is due to the transformation of the ratio of economic cooperation and economic confrontation between our state and Belarus. The purpose of this article is to assess the impact of the implementation of the integration project of Russia and Belarus on the protection of the national economy of the Russian Federation from external and internal threats. The paper considers the impact of the creation of the Union State of Russia and Belarus on the security of the national economy of the Russian Federation. For the assessment, the author's methodological approach was used, based on the consideration of various forms of ensuring the economic security of the state. An approach to assessing the level of economic security of the Russian Federation under various options for creating the Union State of Russia and Belarus is proposed. The importance of economic cooperation and economic confrontation with Belarus for ensuring the economic security of Russia is analyzed. The proposed approach to a comparative assessment of the level of economic security in Russia makes it possible to identify the priorities of economic cooperation and economic confrontation in the creation of the Union State of Russia and Belarus. The results of assessing the level of economic security of the Russian Federation under various options for creating the Union State of Russia and Belarus can be used to substantiate the strategy for the implementation of this integration project until 2025. It is concluded that the political structure of the Union State should correspond to the existing mutual integration ties of the national economies of our countries.


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