scholarly journals Information support of intellectual energy systems and its impact on ensuring balance reliability

2019 ◽  
Vol 139 ◽  
pp. 01005
Author(s):  
Yuri Chukreyev ◽  
Mikhail Chukreyev
Keyword(s):  
Energy Supply ◽  
Power Plants ◽  
Energy Systems ◽  
Information Support ◽  
Hydroelectric Power ◽  
Power Stations ◽  
Hydroelectric Power Plants ◽  
Reported Data ◽  
The Impact

The is UPS of the impact of accounting for the energy supply of hydroelectric power plants on the means of ensuring the balance reliability of the UPS of Russia for the conditions of conducting commercial power take-offs are considered. The analysis of predicted and reported data on the generation of electricity at hydroelectric power stations and their impact on the rationale for backup tools.

scholarly journals Application of the multiagent approach to the research of integrated energy supply systems

2019 ◽  
Vol 114 ◽  
pp. 01006
Author(s):  
Gleb Mayorov ◽  
Valery Stennikov ◽  
Eugene Barakhtenko
Keyword(s):  
Energy Supply ◽  
Power Plants ◽  
Energy Systems ◽  
Integrated System ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Large Area ◽  
Technological Infrastructure ◽  
Supply Systems ◽  
Energy Supply Systems

The current technological infrastructure in the electricity, heat, cold, and gas supply, as a rule, is formed and controlled separately by local systems and tasks. The traditionally considered energy systems unite large energy sources, such as hydroelectric power station, combined heat and power plants, boiler plants, and electric and pipeline networks distributed over a large area. New trends in the energy sector necessitate a revision of the principles of construction of energy systems and the creation of integrated energy supply systems. Combining separate different types of systems of different levels into a single integrated system with many coordinated elements can contribute to the implementation of new functionality, the use of more advanced technologies in operation and the active participation of consumers with distributed generation in the energy supply process. For the study of integrated energy supply systems it is proposed to use a multiagent approach, which is one of the promising areas of research for complex systems. This approach is used in many subject areas to study systems that include many elements with complex behavior. Such systems include integrated energy supply systems. The solution of the problem on the basis of the agent approach is developed by a multitude of interrelated agents.

scholarly journals Risk Based Maintenance in the Hydroelectric Power Plants

Energies ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1502 ◽  
Author(s):  
Evrencan Özcan ◽  
Rabia Yumuşak ◽  
Tamer Eren
Keyword(s):  
Power Plant ◽  
Energy Supply ◽  
Power Plants ◽  
Low Cost ◽  
Hydroelectric Power Plant ◽  
Planning Problem ◽  
Maintenance Planning ◽  
Hydroelectric Power ◽  
Risk Levels ◽  
Hydroelectric Power Plants

In this study, maintenance planning problem is handled in one of the hydroelectric power plants which directly affect Turkey’s energy supply security with a fifth share in the total generation. In this study, a result is obtained by taking into consideration the multi-objective and multi-criteria structure of the maintenance planning in the hydroelectric power plants with thousands of complex equipment and the direct effect of this equipment on uninterrupted and low-cost electricity generation. In the first stage, the risk levels of the equipment in terms of the power plant are obtained with the combination of AHP (Analytical Hierarchy Process) and TOPSIS (technique for order preference by similarity to ideal solution) which are frequently used in the literature due to their advantages. Department-based maintenance plans of all equipment for periodic and revision maintenance strategies are formed by integrating these values into the time allocated for maintenance and the number of employees constraints. As a result of the application of this methodology which is designed for the first time in the literature with the integration of multi-criteria decision-making methods for the maintenance planning problem in a hydroelectric power plant, all elements that prevent the sustainable energy supply in the power plant are eliminated.

scholarly journals ASSESSMENT OF THE IMPACT OF CONSTRUCTION OF A SMALL HYDROELECTRIC POWER STATIONON THE QUALITY OF ATMOSPHERIC AIR

2020 ◽  
Vol 1 (5) ◽  
pp. 202-206
Author(s):  
B.M. Khuchunaev ◽  
◽  
А. Tashilova ◽  
L. A. Kesheva ◽  
N. V. Teunova ◽  
...  
Keyword(s):  
Power Plants ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Point Of View ◽  
Environmental Damage ◽  
Hydroelectric Power ◽  
Negative Consequences ◽  
Initial State ◽  
Hydroelectric Power Plants ◽  
The Impact

Environment – a set of components of the natural environment, natural and natural-anthropogenic objects, as well as anthropogenic objects. When carrying out any construction work, it is necessary to assess the impact of emissions of pollutants on the environment. One of the features of the energy sector at the beginning of the 21st century is the strict regulation of its further development with the requirements of preserving a favorable environment and preventing global pollution. This determines the trend towards an increasing role of renewable energy sources and, first of all, the most efficient hydropower. In the world, small energy began to develop in recent decades, this is mainly due to the desire to avoid environmental damage caused by reservoirs of large hydroelectric power plants, with the ability to guarantee energy supply in isolated and inaccessible areas. The creation of small hydroelectric power plants instead of small power plants operating on fossil fuels leads to a significant improvement in the air basin. This article provides an assessment of the ecological state of the territory from the point of view of the possibility of construction of the object and a preliminary qualitative forecast of possible changes in the environment during the implementation of the planned construction works and its negative consequences. Based on the analysis of the initial state of the environment and the forecast of its resistance to man-made impacts, the assessment of the possible impact of the construction object on the environment in accordance with the requirements for environmental documentation was carried out.

scholarly journals Influence of generation representation on reliability balance indicators and their support means in managing the development of electric power systems

2020 ◽  
Vol 216 ◽  
pp. 01046
Author(s):  
Yurii Chukreev
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Energy Supply ◽  
Power Plants ◽  
Electric Power Systems ◽  
Hydroelectric Power ◽  
Hydroelectric Power Plants ◽  
Generating Equipment

The issues of presentation generating equipment when solving the problem of substantiating the operational reserve of power in the UES of Russia are considered. The influence of the adopted composition of equipment, various modeling of capital and medium repairs, accounting for the energy supply of hydroelectric power plants on the values of indicators balance reliability and means their support is given.

scholarly journals Nature, Nation and the Dam. Narratives about the Harnessed Waterfall in Early Twentieth-Century Sweden

2019 ◽  
Vol 7 (1) ◽  
pp. 171-208 ◽  
Author(s):  
Fabian Zimmer
Keyword(s):  
Twentieth Century ◽  
Power Plants ◽  
Public Discourse ◽  
Large Scale ◽  
Public Acceptance ◽  
Hydroelectric Power ◽  
Water Power ◽  
Power Stations ◽  
Hydroelectric Power Plants ◽  
The One

When the first large-scale hydroelectric power plants were built in Sweden at the beginning of the twentieth century, the waterfall became a twofold symbol of the Swedish nation. On the one hand, the harnessed waterfall promised unlimited energy and economic growth, and thus turned into a unifying symbol of a national productive landscape. On the other hand, the unharnessed wild waterfall, to be enjoyed by tourists seeking refuge from the modern industrial world, became a symbol of a national recreational landscape. This situation, however problematic, did not result in conflict. Taking a look at the first two state-built water power plants in Sweden, I trace how the two contrasting concepts of landscape were harmonized within public discourse. I demonstrate how engineers, architects, conservationists, tourist organisations, and journalists together produced a broad public acceptance of the drastic changes in the national landscape brought about by the construction of these power stations.

scholarly journals Availability Projections of Hydroelectric Power Plants through Monte Carlo Simulation

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8398
Author(s):  
Marcos Tadeu Barros de Oliveira ◽  
Patrícia de Sousa Oliveira Silva ◽  
Elisa Oliveira ◽  
André Luís Marques Marcato ◽  
Giovani Santiago Junqueira
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Power Plants ◽  
Hydroelectric Plant ◽  
Real Data ◽  
Hydroelectric Power ◽  
Maintenance Schedule ◽  
Hydroelectric Power Plants ◽  
Hydroelectric Plants ◽  
The Impact

The present work proposes a Monte Carlo Simulation (MCS) to obtain availability projections for Hydroelectric Power Plants (HPP), based mainly on regulatory aspects involving the Availability Factor (AFA). The main purpose of the simulation is to generate scenarios to obtain statistics for risk analysis and decision-making in relation to the HPP. The proposed methodology consists of two steps, firstly, the optimization of the maintenance schedule of the hydroelectric plant is carried out, in order to allocate the mandatory maintenance in the simulation horizon. Then, for the MCS, scenarios of forced shutdowns of the Generating Units (GU) will be generated, which directly influence the operation and, consequently, the availability of the HPP. The scenarios will be inserted into an operation optimization model, which considers the impact of forced shutdown samples on the MCS. The proposed modeling was applied using real data from the Santo Antônio HPP, which is one of the largest hydroelectric plants in Brazil.

scholarly journals A novel approach to optimize the maintenance strategies: a case in the hydroelectric power plant

2021 ◽  
Vol 23 (2) ◽  
pp. 324-337
Author(s):  
Evrencan Özcan ◽  
Rabia Yumuşak ◽  
Tamer Eren
Keyword(s):  
Direct Effect ◽  
Energy Supply ◽  
Power Plants ◽  
Large Scale ◽  
Sustainable Energy ◽  
Maintenance Planning ◽  
Maintenance Strategy ◽  
Hydroelectric Power ◽  
Maintenance Strategies ◽  
Hydroelectric Power Plants

Countries need to develop sustainable energy policies based on the principles of environmental sensitivity, reliability, efficiency, economy and uninterrupted service and to maintain their energy supply in order to increase their global competitiveness. In addition to this impact of sustainable energy supply on the global world, maintenance processes in power plants require high costs due to allocated time, materials and labor, and generation loss. Thus, the maintenance needs to be managed within a system. This makes analytical and feasible maintenance planning a necessity in power plants. In this context, this study focuses on maintenance strategy optimization which is the first phase of maintenance planning for one of the large-scale hydroelectric power plants with a direct effect on Turkey's energy supply security with its one fifth share in total generation. In this study, a new model is proposed for the maintenance strategy optimization problem considering the multi-objective and multicriteria structure of hydroelectric power plants with hundreds of complex equipment and the direct effect of these equipment on uninterrupted and cost-effective electricity generation. In the model, two multi-criteria decision-making methods, AHP and COPRAS methods, are integrated with integer programming method and optimal maintenance strategies are obtained for 571 equipment.

scholarly journals Potential impact of small hydroelectric power plants on river biota: a case study on macroinvertebrates associated to basaltic knickzones

2019 ◽  
Vol 79 (4) ◽  
pp. 722-734 ◽  
Author(s):  
A. M. C. Ruocco ◽  
J. L. Portinho ◽  
M. G. Nogueira
Keyword(s):  
Power Plants ◽  
River Flow ◽  
Hydroelectric Power ◽  
Protection Measures ◽  
Mean Values ◽  
Composition And Structure ◽  
Hydroelectric Power Plants ◽  
Original Rock ◽  
Natural Dynamics ◽  
The Impact

Abstract Small hydroelectric power plants (SHP) have been considered as an alternative for the generation of electricity with reduced environmental impacts. Nevertheless, no studies have addressed changes in a particular kind of river macrohabitat commonly affected by SHPs, the knickzones. This study aimed to assess the impact of a SHP construction on the aquatic macroinvertebrate fauna associated with two basaltic knickzones located in Sapucaí-Mirim River, Southeast Brazil. The first, considered as a functional knickzone, follows the natural dynamics of the river flow and preserves the original rock substrate. The second, considered as non-functional knickzone, was permanently flooded after the SHP construction and the consolidated rock substrate was changed by fine sediment. Sampling was carried out in two seasonal periods and the data were analysed through multivariate analysis. It was observed differences in composition and structure of the macroinvertebrates community between the knickzones and periods. The functional knickzone exhibited a much higher richness, 72 taxa compared to 44 in the non-functional, as well as a large number of exclusive taxa (38, being only nine exclusive to the non-functional). Diversity, equitability and density mean values were also higher in the functional knickzone. The limnological parameters varied significantly between dry and rainy seasons but not between the distinct knickzones. This kind of macrohabitats and its potential role for the rivers biodiversity is practically unknown. In the scenery of fast SHP expansion, further studies and protection measures are necessary.

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