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Готові списки джерел за темами / Hydroelectric accumulating power plants / Статті в журналах

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Статті в журналах з теми "Hydroelectric accumulating power plants"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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1

Vasilyev, Yu S., V. V. Elistratov, I. G. Kudryasheva, M. M. Mukhammadiyev, and B. U. Urishev. "Use of maneuverable properties of hydroelectric power plants and hydro-accumulating power plants for improving reliability and operating efficiency of electric power systems of commonwealth countries (using example of power plants of Russia and the Republic of Uzbekistan)." E3S Web of Conferences 216 (2020): 01139. http://dx.doi.org/10.1051/e3sconf/202021601139.

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The possibilities of using shunting properties of HPP units, HAPS (Hydro-accumulating power system) for energy storage and redistribution, as well as Pump Station as a consumer of the regulator in night load dips to increase the reliability of the electric power system (EPS) in the conditions of the current increase in the share of non-nondestructive capacities in Russia and Uzbekistan and the implementation of programs for the development of renewable energy sources, primarily the construction of wind and solar power plants, were considered.

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2

Belikov, V. V., A. I. Aleksyuk, N. M. Borisova, and T. A. Fedorova. "Use of Accumulation Basins to Reduce Silting of Reservoirs of Hydroelectric Power Plants Located on Mountain Rivers." Power Technology and Engineering 53, no. 4 (November 2019): 429–39. http://dx.doi.org/10.1007/s10749-019-01095-9.

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3

Rocha, Gilberto de Miranda, Marjorie Barros Neves, and André Farias. "INSERÇÃO REGIONAL DA USINA HIDRELÉTRICA BELO MONTE E A GOVERNANÇA TERRITORIAL." InterEspaço: Revista de Geografia e Interdisciplinaridade 5, no. 19 (January 22, 2020): 202004. http://dx.doi.org/10.18764/2446-6549.202004.

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REGIONAL INSERT OF THE BELO MONTE HYDROELECTRIC PLANT AND TERRITORIAL GOVERNANCEINSERCIÓN REGIONAL DE LA PLANTA HIDROELÉCTRICA BELO MONTE Y LA GOBERNANZA TERRITORIALRESUMOA relação entre a implantação de grandes projetos de investimento (GPI), em especial, os grandes projetos hidrelétricos e as populações locais, tem se constituído, um aspecto recorrente, desde a década de 1970, no âmbito dos debates sobre o desenvolvimento regional há décadas. A literatura técnica e científica sobre as hidrelétricas tem revelado não somente a sua natureza impactante, evidenciando as transformações territoriais delas advindas, como também o caráter de enclave e, mesmo, de empreendimentos de múltiplos propósitos no que respeita ao desenvolvimento regional. A natureza de enclave aponta a evidente subordinação do conjunto de interesses regionais ao cumprimento de um fim único: a geração de energia elétrica para abastecer demandas espacialmente distantes e potencializar os processos de acumulação de capital extra-regionais, com mínimos benefícios para a região de implantação. O presente trabalho tem assim por objetivo refletir sobre os processos de inserção regional de usinas hidrelétricas na Amazônia e a governança territorial implementada, considerando os aspectos mencionados acima e sua influência nas concepções de planejamento que orientaram a construção da usina hidrelétrica Belo Monte na década de 2011 a 2019.Palavras-chave: Hidrelétrica; Belo Monte; Amazônia.ABSTRACTThe relationship between the implementation of large investment projects (GPI), in particular, large hydroelectric projects and local populations, has been a recurring aspect since the 1970s, in the context of debates on regional development for decades. The technical and scientific literature on hydroelectric dams has revealed not only their impactful nature, highlighting their territorial transformations as well as the character of an enclave and even of multi-purpose ventures with regard to regional development. The nature of the enclave points to the evident subordination of the set of regional interests to the fulfillment of a single purpose: the generation of electric energy to supply spatially distant demands and to potentiate the processes of accumulation of extra-regional capital, with minimal benefits for the region of implantation. The present work aims to reflect on the processes of regional insertion of hydroelectric plants in the Amazon and the implemented territorial governance, considering the aspects mentioned above and their influence on the planning concepts that guided the construction of the Belo Monte hydroelectric plant in the 2011 decade to 2019.Keywords: Hydroelectric Power Plant; Belo Monte; Amazon.RESUMENLa relación entre la implementación de grandes proyectos de inversión (GPI), en particular, grandes proyectos hidroeléctricos y poblaciones locales, ha sido un aspecto recurrente desde la década de 1970, en el contexto de debates sobre desarrollo regional durante décadas. La literatura técnica y científica sobre represas hidroeléctricas ha revelado no solo su naturaleza impactante, mostrando sus transformaciones territoriales, así como el carácter de un enclave e, incluso, de emprendimientos multipropósito con respecto al desarrollo regional. La naturaleza del enclave apunta a la evidente subordinación del conjunto de intereses regionales al cumplimiento de un solo propósito: la generación de energía eléctrica para satisfacer demandas espacialmente distantes y potenciar los procesos de acumulación de capital extrarregional, con beneficios mínimos para la región de implantación. El presente trabajo tiene como objetivo reflexionar sobre los procesos de inserción regional de las centrales hidroeléctricas en la Amazonía y la gobernanza territorial implementada, considerando los aspectos mencionados anteriormente y su influencia en los conceptos de planificación que guiaron la construcción de la central hidroeléctrica Belo Monte en la década de 2011 hasta 2019.Palabras clave: Central Hidroeléctrica; Belo Monte; Amazonia.

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4

Lezhniuk, Petro, Sergey Kravchuk, Ihor Prokopenko, and Yulia Malogulko. "MATHEMATICAL MODELING OF BATTERY ENERGY STORAGE SYSTEMS IN THE ADDITIONAL SERVICE MARKET OF THE UNITED ELECTRIC POWER SYSTEM OF UKRAINE." Bulletin of the National Technical University «KhPI» Series: New solutions in modern technologies, no. 2(8) (June 15, 2021): 21–29. http://dx.doi.org/10.20998/2413-4295.2021.02.04.

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The introduction of battery energy storage systems and the subsequent transfer of electricity is a very important task, which is solved in different countries in different ways, based on the types of products that can be provided by battery energy storage systems. The analysis of the structure of generating capacities in the United Electric Power System of Ukraine shows a significant deficit of shunting capacities, among which today there is thermal generation, which has a significant level of wear of the main generating equipment and hydroelectric power plants. Based on the above, it would be logical to assume that with the launch of a new model of the electricity market; market segments will be formed in which price signals will be attractive for investment in new shunting capacity. However, the formation of such signals is limited by the establishment of upper price indices on the additional service market and market day ahead. Thus, to simulate the operation of battery energy storage systems, the additional service market was chosen in which the system operator purchases services from additional service providers. Modeling the operation of battery energy storage systems for the provision of additional services is a multi-criteria task that takes into account both the technical features of the battery energy storage systems and the relevant price indices that have been formed for each type of service. The paper considers the possibility of providing services from the automatic reserve of frequency recovery and the provision of balancing services. Based on statistical data on the additional service market of the integrated power system of Ukraine, developed a mathematical model to assess the effect of the use of battery energy storage systems to provide services for primary, secondary and tertiary frequency control. The relationship between the price indices of additional service market and technical and economic characteristics of the battery energy storage system are determined. The target function is offered in the mathematical model of operation of the battery energy storage systems, which takes into account the reduced costs for the accumulation of a unit of electricity, maintenance costs and income from the provision of services on the additional service market.

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5

Brylina, O. G., K. D. Semenova, and S. I. Nechitailo. "On issue of hydroelectric power plants." IOP Conference Series: Earth and Environmental Science 194 (November 15, 2018): 062006. http://dx.doi.org/10.1088/1755-1315/194/6/062006.

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6

Jiménez, Oscar F., and M. Hanif Chaudhry. "Stability Limits of Hydroelectric Power Plants." Journal of Energy Engineering 113, no. 2 (September 1987): 50–60. http://dx.doi.org/10.1061/(asce)0733-9402(1987)113:2(50).

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7

Devyatkin, A. A., S. V. Titov, and V. V. Konovalov. "Hydroelectric power plants for small rivers." Journal of Physics: Conference Series 2131, no. 3 (December 1, 2021): 032071. http://dx.doi.org/10.1088/1742-6596/2131/3/032071.

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Abstract Comparative analysis of methods of obtaining electricity from a renewable energy source is carried out. Various designs and op-tions for small hydroelectric power plants have been proposed. Positive and negative factors of structures under consideration and their impact on the environment are analyzed. The main characteristics of the flow (speed, head) for the choice of the optimal variant of hydroelectric power plant have been determined. Three variants of impellers for free-flow hydroelectric power plants are proposed with a comparison of the efficien-cy of each variant. An analysis was carried out and an impeller based on a Darrieus rotor was selected for further research. Simulation was performed in the Flow Simulation program. The initial data for the design of Darrieus rotor operating in a liquid were the diameter and width of the impeller. The calculations involved a rotor with straight and swirling blades. The swirling blades rotor is self-starting. In the course of the calcula-tion, the speed of the liquid flow approaching the rotor and the rotor speed were changed. As a result of cal-culation, the value of the positive moment for self-starting was determined, which occurs at an incident flow velocity of at least 1.3 m/s.

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8

Loire, Rémi, Hervé Piégay, Jean-René Malavoi, Leah Bêche, Quentin Dumoutier, and Julie Mosseri. "Targeted water releases to flush fine sediment out of a bypassed reach of the Durance River downstream of four dams." E3S Web of Conferences 40 (2018): 02048. http://dx.doi.org/10.1051/e3sconf/20184002048.

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The Durance River is a highly regulated, gravel-bed river with a naturally high fine sediment load in southern France. EDF operates eight dams along the regulated main stream channel (218 km from the Serre-Ponçon Dam to the confluence with the Rhône River), that divert water to 16 hydroelectric power plants via a canal. Flow regulation has contributed to fine sediment accumulation (clogging) in the Durance River. In addition to a recent increase in minimum flows has implemented targeted water releases at four out of eight dams to simulate floods and reduce clogging to restore river function for fishes and invertebrates, The timing of these releases is defined for each dam based on the spawning period of target fish species. During the release, TSS, O2, T, H, and conductivity are measured continuously. Before and after each release, clogging (superficial/interstitial) is measured. This monitoring program showed that several of the releases were not effective on surface clogging inducing a loss of water or resulted in effects contrary to those sought, although this was not reflected in the biological results. These results indicate that two parameters must be taken into account to determine a priori the need to carry out releases: the hydrology observed during the year and the initial level of clogging. Artificial flood releases are increasingly being used a management tool to mitigate hydropower impacts on river hydromorphology and ecology. This experimentation shows that it is necessary to carry out these types of operations in an adaptive management context. At this time, the results obtained do not lead to clear conclusions regarding their efficacy, mostly as a result of strong interannual variation in hydroclimatic conditions, which have a strong influence on initial conditions and resulting outcomes. Furthermore, it is important to incorporate this field measurements and not rely solely on turbidity gauging stations to evaluate efficacy.

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9

Balzannikov, Mikhail. "SAVING RESOURCES IN THE CONSTRUCTION OF HYDROELECTRIC POWER PLANTS." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 20, 2019): 20. http://dx.doi.org/10.17770/etr2019vol1.4103.

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The article describes run-of-the-river hydroelectric power plants. The authors specify the importance of performing technical and economic calculations in justifying the large-sized units of the water-supplying channel of a run-of-the-river hydroelectric power plant: turbine pits and suction (discharge) pipes. The study shows that the amount of construction work and the total cost of building a hydroelectric power plant depend on the size of these water supply units. The research objective is to analyze the validity of establishing the main dimensions of the suction pipes for modern technical and economic conditions. The researchers use the discounted income method. The calculations are performed for a hydroelectric power plant with an elbow suction pipe. The analysis of how the operating conditions of a hydroelectric power plant influence the savings of construction resources is carried out. The analysis shows that saving construction resources by reducing the length of the suction pipe is justified if the hydroelectric power plamt is designed to work only at peak power loads. For hydroelectric power plants operating at semi-peak or base power loads, the additional construction costs would be appropriate if leading to the decrease in pressure loss and to the increase in electricity generation.

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10

Turgeon, A. "Siting and Dimensioning of Hydroelectric Power Plants." IFAC Proceedings Volumes 18, no. 9 (August 1985): 311–16. http://dx.doi.org/10.1016/s1474-6670(17)60306-9.

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11

Kiraga, Marta. "Hydroelectric Power Plants and River Morphodynamic Processes." Journal of Ecological Engineering 22, no. 7 (July 6, 2021): 163–78. http://dx.doi.org/10.12911/22998993/139068.

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12

Aleksandrovskii, A. Yu, and P. S. Borshch. "Prediction of electric-power generation at hydroelectric power plants." Power Technology and Engineering 47, no. 2 (July 2013): 83–88. http://dx.doi.org/10.1007/s10749-013-0403-8.

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13

Rusina, A. G., Dzh Kh Khudzhasaidov, O. V. Naumov, and A. N. Gorlov. "Development of an intelligent system for integrated management of hydroelectric cascade modes." E3S Web of Conferences 124 (2019): 05019. http://dx.doi.org/10.1051/e3sconf/201912405019.

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The paper deals with an isolated electric power system (EPS) based on hydroelectric power plants. The analysis of the existing methods and approaches for investigation of modes of EPS which comprise hydroelectric power plants is presented. A mathematical model of a hydroelectric station cascade has been developed, which allows taking into account the hydraulic connection during calculation of electrical modes. A software tool for optimization the operating modes of hydroelectric power plants as part of the power system was developed. It uses redistribution the load between hydraulic units both inside the station and between hydroelectric complexes of cascade hydroelectric stations. The task of modeling power consumption and load graphs of EPS with specific properties, based on the application of artificial intelligence methods, is considered.

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14

Hernández-Gutiérrez, José Carlos, José Antonio Peña-Ramos, and Victor I. Espinosa. "Hydro Power Plants as Disputed Infrastructures in Latin America." Water 14, no. 3 (January 18, 2022): 277. http://dx.doi.org/10.3390/w14030277.

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Non-violent methods can strongly support achieving the 2030 Agenda of sustainable development goals, increasing energy efficiency and access in the poorest countries. However, hydroelectric power stations are disputed strategic elements in any region of the world. This paper analyzes, firstly, the role of hydroelectric power stations as elements that have been generating conflicts in Latin America in the period 1982–2018 and, secondly, the conflicts themselves. The results show that indigenous peoples face the most significant risks from constructing dams and, consequently, they are the primary opponents of hydroelectric projects.

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15

Grechnevikov, E. I. "Rebuilding of hydroelectric units in the series of Niva hydroelectric power plants." Hydrotechnical Construction 31, no. 12 (December 1997): 719–21. http://dx.doi.org/10.1007/bf02766225.

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16

Mukhammadiyev, M., B. Urishev, E. Kan, and K. Juraev. "New Methods of Application of Micro-Hydroelectric Power Plants at Existing Hydraulic Structures: Schemes, Parameters, Efficiency." E3S Web of Conferences 320 (2021): 04009. http://dx.doi.org/10.1051/e3sconf/202132004009.

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The structure of hydraulic structures of power and water management systems includes gates for various purposes, which allow you to regulate and distribute the flow of water in channels and waterworks. Existing gate designs do not provide for the possibility of generating electricity from the water energy of the stream passing through them. In order to convert the hydraulic energy of water passing through the gates into electrical energy a new patented design of the gate is proposed which allows using micro-hydroelectric power plants with a Banki turbine to make more rational use of the hydro resources of energy and water management systems. The proposed design solves the problem of expanding the functionality of the gate and increasing the efficiency of micro-hydroelectric power plants with a reduction in its cost. Areas of application of the new design for the combined use of micro-hydroelectric power plants and hydraulic gates at hydroelectric power systems are also proposed. The technique for determining the technical and economic parameters of micro-hydroelectric power plants installed on flat gates of hydraulic structures is given, and theoretical calculations are performed, which showed that the higher the capacity of micro-hydroelectric power plants, the shorter its payback period.

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17

Lezhnyuk, Petro, Iryna Hunko, Juliya Malogulko, Iryna Kotylko, and Lіudmyla Krot. "MODELING OF COMPATIBLE WORK OF DISTRIBUTED POWER SOURCES OF ELECTRIC POWER AND CENTRALISED POWER SUPPLY." TECHNICAL SCIENCES AND TECHNOLOG IES, no. 2 (12) (2018): 189–95. http://dx.doi.org/10.25140/2411-5363-2018-2(12)-189-195.

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Urgency of the research. Current trends of distributed generation development in Ukraine indicate a rapid generation in-crease from renewable energy plants. Most developed countries gradually refuse from the fossil fuels use and invest more and more to the “green” energy. Therefore, there is a need for a detailed study of the operation conditions of distributed energy sources due to their instability, as well as the processes that arise in distribution electric networks with diverse types of distributed energy sources. Target setting. In the producing process of power energy by distributed energy sources due to the increase in their num-ber, there are situations where several renewable sources of energy operate to only one system of buses. Thus, such distributive networks acquire the features of a local power system, which complicates the control process of such systems, and also there is a problem with the electricity supply of consumers. Actual scientific researches and issues analysis. The analysis of publications suggests that in literature more attention is paid to studying the operating modes of solar power plants, or small hydroelectric power plants. However, almost no attention was paid to the study of their cooperation work. Uninvestigated parts of general matters defining. Only a few works are devoted to the study of the cooperation of the diverce sources of distributed energy sources in the local electrical systems. That is why, their impact on power distribution networks and on the grid in general has not been studied extensively. The research objective. In this article was considered the influence of asynchronous generators on small hydroelectric power plants on the operation modes of distribution electrical networks, and were investigated the processes that are occurring in local power systems with different types of distributed energy sources. The statement of basic materials. Based on the research results, was developed a computer model of a such system in the PS CAD software environment. Two solar stations and one small hydroelectric power station with an asynchronous generator were connected to the power supply. It was shown the simulation of two modes of operation: a joint operation of a small hydroelectric power station, two solar power stations and a power supply center; a joint operation of a small hydroelectric pow-er plant, two solar power stations and a power supply disconnected. Conclusions. As a result of computer simulation, it is shown that by switching on a small hydroelectric power plant with an asynchronous generator in the case of an emergency shutdown of centralized power supply, it is possible to restore the work of solar power plants, and thus partially or completely restore the power supply of consumers.

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18

Nikolaev, V. B. "Strength of Reinforced Concrete Structures of Hydroelectric Power Plants and Nuclear Power Plants." Power Technology and Engineering 52, no. 6 (March 2019): 680–85. http://dx.doi.org/10.1007/s10749-019-01013-z.

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19

Górecki, Jarosław, and Ewa Płoszaj. "Cost risk of construction of small hydroelectric power plants." MATEC Web of Conferences 262 (2019): 07004. http://dx.doi.org/10.1051/matecconf/201926207004.

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The growing demand for electricity forces the humanity to find the most economical methods of its production. Functioning without electricity in today's world deprives human from the possibility of a free existence, and even completely prevents it because of the technicisation of society. Growing awareness of acquiring "clean" environmentally-friendly energy from renewable sources contributes to the successive development of this sector of the economy. The purpose of the article was to analyse the risk of construction costs for small hydroelectric power plants along with an indication of the location and needs of a small hydroelectric power plant in Poland. The subject of the study was a small hydroelectric power plant producing electricity, using a turbine to convert the kinetic energy of water into mechanical energy. Aiming at illustrating the benefits of the discussed investment based on the estimation of construction costs and, as a result, financial results, a specific case of a small hydroelectric power plant located in the region of Kujawsko-Pomorskie [Kuyavian-Pomeranian Viovodeship] in central Poland was analysed. The intended research objective was achieved using industry literature, magazines as well as technical knowledge of persons holding building qualifications (including hydro-technical construction) and materials made available by two Bydgoszcz companies specializing in the implementation of small hydroelectric power plants. TheCOMAR- Jarek Górecki®algorithm, which operates in the industry as the author's concept of calculating the variation of financial outlays incurred for the implementation of investment and construction projects, was used to analyse the risk of costs of a construction project.

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20

Yilmaz, Ercan Nurcan, and Mehmet Karayel. "PLC Based SCADA for Micro Hydroelectric Power Plants." International Journal of Electrical Energy 4, no. 1 (2016): 67–70. http://dx.doi.org/10.18178/ijoee.4.1.67-70.

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21

Özcan, Evrencan, Rabia Yumuşak, and Tamer Eren. "Risk Based Maintenance in the Hydroelectric Power Plants." Energies 12, no. 8 (April 20, 2019): 1502. http://dx.doi.org/10.3390/en12081502.

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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.

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22

Onoda, Takashi, Norihiko Ito, and Hideaki Koreeda. "Data Indicating Malfunction Sign of Hydroelectric Power Plants." IEEJ Transactions on Industry Applications 131, no. 4 (2011): 448–57. http://dx.doi.org/10.1541/ieejias.131.448.

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23

Быстров, Andrey Bystrov, Юсим, Vyacheslav Yusim, Филиппов, and V. Filippov. "Economic Potential of Pumped-Storage Hydroelectric Power Plants." Economics of the Firm 4, no. 3 (September 17, 2015): 26–29. http://dx.doi.org/10.12737/17591.

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The article deals with questions of using pumped-storage hydroelectric power plants in electrical power system. Maneuverable reserve of Russian electrical power system is exhausted; therefore further development is able only with the presence of storage plants in the system which will allow getting additional volume of electricity with existent generative power stations. However, low return of investment slows down construction of storage plants. PSP exert a powerful economic effect on system which is undervalued. Therefore for ensuring a return on investment it is necessary to revise system of economic relations within industry when using system utilities.

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24

Woynarovich, E. "The hydroelectric power plants and the fish fauna." SIL Proceedings, 1922-2010 24, no. 4 (September 1991): 2531–36. http://dx.doi.org/10.1080/03680770.1989.11900007.

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25

Harboe, Ricardo, Tirtha Raj Gautam, and Pushpa Raj Onta. "Conjunctive Operation of Hydroelectric and Thermal Power Plants." Journal of Water Resources Planning and Management 120, no. 6 (November 1994): 778–93. http://dx.doi.org/10.1061/(asce)0733-9496(1994)120:6(778).

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26

Davies, S. "Big ideas for small hydro [hydroelectric power plants]." Engineering & Technology 6, no. 1 (February 1, 2011): 52–54. http://dx.doi.org/10.1049/et.2011.0108.

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27

Golonka, Emil, Michał Pająk, and Davor Kolar. "Selected diagnostic methods used in Hydroelectric Power Plants." MATEC Web of Conferences 332 (2021): 01011. http://dx.doi.org/10.1051/matecconf/202133201011.

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Generating electricity using Renewable Energy Sources (RES) is taking over more and more shares in the global market of energy production. This results from global energy policy which is closely related to the reduction of greenhouse gas emission and environmental pollution as well as to reducing consumption of fossil fuels. The constantly increasing number of producers of electricity from RES, such as Hydroelectric Power Plants and Small Hydroelectric Power Plants, gives an impulse for carrying out work on the development and improvement of their operation. It forces continuous work on development of technical diagnostics methods which allow to detect faults at an early stage and even, using properly designed systems, to prevent them or minimize their effects. The main task of the diagnostics and control systems is to identify any symptoms of inaccurate device operation. Next, to modify the algorithm so that the device is introduced to the area of correct operation. Detecting a defect at its initial phase gives opportunities to plan and prepare for the repair of the device. Using appropriate diagnostic methods helps to minimize the costs of major repairs and overhauls of machines and maintain the work efficiency at the desired level. This article presents selected diagnostic methods used in Hydropower Plants.

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Lennon, C. A. "Improved generator temperature monitoring for hydroelectric power plants." IEEE Transactions on Energy Conversion 5, no. 2 (June 1990): 259–64. http://dx.doi.org/10.1109/60.107219.

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Cazzaniga, Raniero, Marco Rosa-Clot, Paolo Rosa-Clot, and Giuseppe Marco Tina. "Integration of PV floating with hydroelectric power plants." Heliyon 5, no. 6 (June 2019): e01918. http://dx.doi.org/10.1016/j.heliyon.2019.e01918.

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30

Bondarenko, V. B. "Dual-Delivery Turbine Scrolls in Large Hydroelectric Units of Underground Hydroelectric Power Plants." Power Technology and Engineering 51, no. 4 (October 13, 2017): 410–13. http://dx.doi.org/10.1007/s10749-017-0847-3.

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31

Konovalova, O. E. "RENEWABLE RIVER RESOURCES OF THE MURMANSK REGION AND THEIR USE IN THE ENERGY SECTOR: YESTERDAY, TODAY, TOMORROW." Север и рынок: формирование экономического порядка 69, no. 3/2020 (November 27, 2020): 144–56. http://dx.doi.org/10.37614/2220-802x.2.2020.69.010.

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The development of water resources for power generation is often crucial for the socio-economic development of entire regions. This is especially important for the development of the Russian Arctic, where hydroelectric resources are poorly developed. The purpose of the study is to assess the impact of consequences of changes in the hydrological characteristics of watercourses on the development of small and micro-energy in the region. Based on long-term hydrological data from 22 observation posts covering the period from 1946 to 2013 the annual river flow module of the Murmansk region was calculated using statistical data processing methods, and a modern map-scheme of changes in the annual river flow module of the region was constructed using the comparative geographical method and the method of cartographic generalization. A quantitative assessment of the water resources of the Murmansk region, which is part of the Russian Arctic, is given. The distribution of the average annual river flow over the area is shown. The influence of climate changes on water content and river flow regime in the Murmansk region is estimated. The hydropower resources of the rivers of this region have been determined. The history of the creation of the hydropower industry on the Kola Peninsula and the possibilities of developing hydropower in the near future are considered. The main indicators of the operating hydroelectric power plants (HPP) of the Murmansk region are presented. The role of small and micro-hydroelectric power plants in the development of the power system is determined. Promising options for the creation of small hydroelectric power plants in remote villages of the region are shown, and their technical and economic indicators are given. It is found out that the total integrated effect from the construction of these hydroelectric power plants will amount to 354 and 594 million rubles respectively. Development directions of micro-hydroelectric power plants in the Murmansk region are identified. Micro-hydroelectric power plants will provide electricity to small villages, dacha cooperatives and farms. Small and micro-hydroelectric power plants can be used for elaboration of strategies and plans for socio-economic development of the Murmansk region and its small settlements, as well as plans for development of the tourism industry in the region.

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32

CHERNYH, O. N., A. V. BURLACHENKO, V. V. VOLSHANIK, and U. H. UMARU HAMANJODA. "ASSESSMENT OF JOINT OPERATION OF HYDRAULIC AND SOLAR POWER PLANTS OF COMPLEX HYDRAULIC UNITS." Prirodoobustrojstvo, no. 4 (2021): 67–74. http://dx.doi.org/10.26897/1997-6011-2021-4-67-74.

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The results of the assessment and analysis of the operating modes of the power complex with the constructive and technological combination of hydraulic power plants (HPPs) with solar power plants (SFEU) in the presence of seasonal or daily regulation in the environmental hydro system are presented. The aspects of the operation of a hydroelectric power station with non-self-regulating derivation are considered in detail: when working in a load schedule with a maximum power equal to the installed one, and when the average daily power along the watercourse is approaching the provided one. It was found that in the first case, the influence of the SPEU regime on the joint work with the hydroelectric power station is to move a part of the load graph of the hydroelectric power plant with the maximum power to the base part of the schedule. In the second case, the influence of the SPEU mode consists in changing the variable part of the load graph, but the HPP, in contrast to the first case, retains its position in the load graph of the power system. The mode of operation of the hydroelectric power station becomes more uniform and at the same time, a smaller volume of the daily regulation basin (DRB) is required. For the example considered, the maximum power of the hydroelectric power station during the day increased from 50 MW to 54 MW. It has been revealed that even with the production of SPEU in 18% of the daily production of hydroelectric power plants, the volume of DRB is required approximately two times less. As a result, it is possible to increase the operating head at the hydroelectric power station and obtain the corresponding effect on power and electricity generation.

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33

Oliveira, Marcos Tadeu Barros de, Patrícia de Sousa Oliveira Silva, Elisa Oliveira, André Luís Marques Marcato, and Giovani Santiago Junqueira. "Availability Projections of Hydroelectric Power Plants through Monte Carlo Simulation." Energies 14, no. 24 (December 13, 2021): 8398. http://dx.doi.org/10.3390/en14248398.

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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.

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34

Balzannikov, M. I., and E. G. Vyshkin. "Hydroelectric Power Plants ’ Re Servoirs And Their Impact On The Environment." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 1 (August 5, 2015): 171. http://dx.doi.org/10.17770/etr2011vol1.885.

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The paper presents the analysis of different types of impact the hydroelectric power plants’ reservoirs could make on the environment. Hydroelectric power plants (HPP) produce ecologically safe energy and correspond to the modern striving for sustainability because they are operated on renewable energy sources. At the same time they can provoke various potential dangers for the environment. The objective of the investigation is to demonstrate the interrelation between the type and structure of a hydroelectric power plant and the way its reservoir may impact on the nature surrounding the plant. These effects may be direct and indirect, positive and negative and vary from insignificant that can be easily fixed to those that are irreversible and catastrophic. The latter should be taken into account during the design of HPP.

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35

Kozhevnikov, Egor. "DEVELOPMENT OF MICROHYDROPOWER PLANTS FOR SMALL RIVERS IN THE CHELYABINSK REGION MINING ZONE." Bulletin of the South Ural State University series "Power Engineering" 22, no. 1 (March 2022): 5–11. http://dx.doi.org/10.14529/power220101.

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Small hydroelectric power generation is attractive from both an environmental and economic point of view. Technological innovations and mitigation measures are making small hydroelectric power plants an inexpensive and viable source of renewable energy which can be generated independently. They contribute not only to environmental protection, but also reduce human dependence on fossil fuels. This study is dedicated to finding solutions based on renewable energy source technologies and innovations using the example of the Chelyabinsk region. The experimental model of a micro-hydroelectric power station water wheel presented in this article, and the studies carried out on the basis of this model were used to carry out preliminary calculations. As a result, we found that such micro-hydroelectric power plants are capable of generating about 9–13 kW∙h, about 170–266 kW∙h/day and from 63 to 99 MW∙h/year.

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36

CHERNYH, O. N., A. V. BURLACHENKO, and V. V. VOLSHANIK. "PROSPECTS FOR COMBINING SOLAR PLANTS WITH STRUCTURAL ELEMENTS OF ENVIRONMENTAL HYDRAULIC FACILITIES AND COMPLEXES." Prirodoobustrojstvo, no. 2 (2021): 57–65. http://dx.doi.org/10.26897/1997-6011-2021-2-57-65.

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The issues of solving modern problems related to meeting the energy needs of environmental hydraulic engineering are considered. The problem of improving the methodological basis for choosing the optimal arrangement of elements of photovoltaic devices (SPEU) on the blocks of the dam building of hydroelectric power plants (HPP) of 4 main types is formulated. The graphical dependences of the estimation of the power ratio of the combined SPEU and HPP on the diameter of the turbine wheel are analyzed. As a result of the analysis of the influence of the location of the transformer on the possibility of placing the SPEU on the buildings of the hydroelectric power station, it was revealed that in order to increase the adaptability of the revitalized even large hydro system with a separate building of the hydroelectric power station, it is preferable to place power transformers from the downstream side. It is noted that according to the results of the schematic study for the medium-pressure hydroelectric complex Lagdo in the north of Cameroon, the placement of solar cells will provide an additional 6.95% of the capacity of the operating hydroelectric power station.

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37

Mukhammadiev, M. M., K. S. Dzhuraev, and I. Sh Klychev. "Capabilities of hydroelectric pumped-storage stand-alone power plants." Applied Solar Energy 49, no. 4 (October 2013): 267–71. http://dx.doi.org/10.3103/s0003701x13040130.

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38

Mukhammadiev, M. M., and Sh I. Klichev. "Use of Pumped Storage Hydroelectric Power Plants in Uzbekistan." Applied Solar Energy 54, no. 6 (December 2018): 468–71. http://dx.doi.org/10.3103/s0003701x18060117.

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39

Nikolić, D., R. R. Nikolić, B. Krstić, V. Lazić, I. Ž. Nikolić, I. Krstić, and V. Krstić. "Optimization of Technical Diagnostics Procedures for Hydroelectric Power Plants." Procedia Engineering 40 (2012): 322–27. http://dx.doi.org/10.1016/j.proeng.2012.07.102.

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40

Weibull, A., and S. Högberg. "Control of Hydroelectric Power Plants on the River Guadalupe." IFAC Proceedings Volumes 22, no. 9 (August 1989): 55–59. http://dx.doi.org/10.1016/s1474-6670(17)53245-0.

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41

Opan, Mücahit, Murat Ünlü, Celal Özkale, Cenk Çelik, and Halil İbrahim Saraç. "Optimal energy production from wind and hydroelectric power plants." Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 41, no. 18 (December 10, 2018): 2219–32. http://dx.doi.org/10.1080/15567036.2018.1555626.

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42

Kupriyanov, V. P. "Winter operation of spillway structures at hydroelectric power plants." Power Technology and Engineering 44, no. 4 (November 25, 2010): 255–62. http://dx.doi.org/10.1007/s10749-010-0174-4.

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43

CHERNYH, O. N., A. V. BURLACHENKO, and V. V. VOLSHANIK. "FEATURES OF THE USE OF ELEMENTS OF INTEGRATED HYDROELECTRIC FACILITIES IN CONJUNCTION WITH SOLAR PHOTOVOLTAIC INSTALLATIONS." Prirodoobustrojstvo, no. 1 (2021): 63–72. http://dx.doi.org/10.26897/1997-6011-2021-1-63-72.

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The prospects for the use of solar power plants in the world of environmental hydraulic engineering are analyzed. Recommendations on the constructive combination of elements of structures of environmental hydro technical complexes with solar photovoltaic installations (SFEU) are presented. The variants of their most rational location on the building of hydroelectric power stations (GES) of different types are considered. It is established that the buildings of small and medium-sized hydroelectric power plants represent significantly more constructive possibilities for combining the GES building with the SFEU. The relationship between the area suitable for placing solar cells and the diameter of the turbine impeller is determined. With a decrease in the diameter of the impeller, the relative surface area suitable for placing solar cells increases. It is noted that it is most appropriate to combine SFEU and small hydroelectric power plants with non-combined buildings with transformers on the downstream side. At medium-sized hydroelectric power plants of various types, the conditions for combining are approximately the same. The results of the work can have an impact on obtaining a reliable power supply system based on renewable energy sources, improving the safety of the GTS (hydro technical structures) of existing hydroelectric facilities in the context of increasing the efficiency of the introduction of ”green“ technologies in the energy sector while reducing biosphere pollution and greenhouse gas emissions, including in hard-to-reach areas of agricultural areas where there are problems with centralized water supply.

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44

Kirgizov, Alifbek, Sherkhon Sultonov, Khislatbek Usmonov, and Mirzosharif Rajabov. "Factors Influencing the Determination of the Gyrosures Potential of Small Rivers." E3S Web of Conferences 264 (2021): 03077. http://dx.doi.org/10.1051/e3sconf/202126403077.

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The article examines the main trends in the use of renewable energy sources in the world. The article examines the main trends in the use of renewable energy sources in the world. The use of renewable sources is associated with the depletion of reserves of carbonaceous minerals and a decrease in greenhouse gas emissions into the atmosphere. The article presents the main, according to the authors, reasons for the incorrect determination of the potential of small hydro resources in the Republic of Tajikistan. In recent years, many small hydroelectric power plants have been built, which are ineffective. For this, the authors propose a more detailed study of the watercourse regime and the determination of its potential for the minimum and maximum tributaries and the possibility of its use, the influence of hydrological, socio-economic factors on the determination of the potential of small rivers during the construction of small hydroelectric power plants. Zoning of small watercourses is proposed for a more detailed determination of the watercourse capacity and the possibility of constructing small hydroelectric power stations on them. The influence of altitude above sea level on the output of the rated power of installations of renewable energy sources is considered. As it shows, the experience of operation and the above statistical analysis at the existing small hydroelectric power plants with an altitude of SHPPs above sea level, their nominal capacity will decrease. The decrease in the nominal output power of small hydroelectric power plants with an air-cooling system is associated with the rarefaction of atmospheric air.

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45

Awasthi, Shambhu Ratan, Vishnu Prasad, and Saroj Rangnekar. "Strategic Planning for Operation of Large Hydropower Plants." Hydro Nepal: Journal of Water, Energy and Environment 14 (October 16, 2014): 53–58. http://dx.doi.org/10.3126/hn.v14i0.11266.

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Electricity is an integral part of modern life. The main sources of power generation continue to be the fossil fuels which are largely responsible for global warming. In view of environmental concerns, there is increasing awareness on judicious use of natural resources, including water. Large hydroelectric power plants are generally multi-purpose projects and require huge quantities of water for their operation. Usually the generating units in a hydroelectricpower plant are put in operation to meet the electrical load demand without considering the efficiency of the units, which can lead to excessive water use. It is now need of the hour to pay more attention to optimizing the utilization of water in hydroelectric power plants.This paper presents strategic planning for optimal operation of large hydroelectric power plants. Large variation inefficiency of a Francis turbine forms the basis of proposed methodology in which turbines are operated at maximum efficiency. In one approach, discharge is minimized for constant load operation thus conserving water. In another approach, generation is maximized with the same quantity of water. The fringe benefits include creation of operating reserve and availability of additional reactive power in the generator.DOI: http://dx.doi.org/10.3126/hn.v14i0.11266HYDRO Nepal JournalJournal of Water, Energy and EnvironmentVolume: 14, 2014, JanuaryPage: 53-58

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46

D. Obozov, Alaybek, Ruslan A. Akparaliyev, Taalaybek T. Mederov, and Victor G. Krasnov. "Bi-rotor micro hydro power plant for energy supply to isolated consumers." International Journal of Engineering & Technology 7, no. 2.13 (April 15, 2018): 173. http://dx.doi.org/10.14419/ijet.v7i2.13.11682.

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This paper is dedicated to comparative analysis and description of a micro hydroelectric power plant with bi-rotor hydro generator. Based on the characteristics analysis, this paper describes a renewable energy source for a small watercourse; the feasibility of micro hydroelectric power plants with bi-rotor hydro generator is demonstrated. The features of their operation require in-depth research to substantiate parameters of such installations. This paper presents the analysis of the usage of micro hydroelectric solutions with bi-rotor hydro generator. The lattice theory problem was solved, which made it possible to determine the shape of the profile according to a given law of velocity distribution (pressure) on the contour. The experimental stand was developed, and the experiments were conducted to identify the dependence of the frequency of rotation from the flow and the dependence of the rotational frequencies of hydro turbines from various loads. Based on the results obtained, the optimum values of the rotational speed were identified. Presented results of experimental research are of significance and can be applied practically in design of micro hydroelectric power plants with bi-rotor hydro generator. Keywords: Bi-Rotor Hydro Generator; Differential Equation; Rotational Flows; Function; Hydraulic Models; Kinetic Energy; Renewable Energy Sources; Velocity Measurements. This paper is dedicated to comparative analysis and description of a micro hydroelectric power plant with bi-rotor hydro generator. Based on the characteristics analysis, this paper describes a renewable energy source for a small watercourse; the feasibility of micro hydroelectric power plants with bi-rotor hydro generator is demonstrated. The features of their operation require in-depth research to substantiate parameters of such installations. This paper presents the analysis of the usage of micro hydroelectric solutions with bi-rotor hydro generator. The lattice theory problem was solved, which made it possible to determine the shape of the profile according to a given law of velocity distribution (pressure) on the contour. The experimental stand was developed, and the experiments were conducted to identify the dependence of the frequency of rotation from the flow and the dependence of the rotational frequencies of hydro turbines from various loads. Based on the results obtained, the optimum values of the rotational speed were identified. Presented results of experimental research are of significance and can be applied practically in design of micro hydroelectric power plants with bi-rotor hydro generator.

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47

Álvarez, Xana, Enrique Valero, Natalia de la Torre-Rodríguez, and Carolina Acuña-Alonso. "Influence of Small Hydroelectric Power Stations on River Water Quality." Water 12, no. 2 (January 21, 2020): 312. http://dx.doi.org/10.3390/w12020312.

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Hydropower electricity generation is considered one of the cheapest technologies regarding electricity generation costs, and it is the most traditional, clean, renewable energy source. However, despite the environmental benefits offered by hydropower, they also can have negative impacts and consequences in the environment affecting water quality and disrupting river ecology. We investigated the environmental effects of four small hydropower plants (SPH) in north-west Spain by looking at the water quality of the four river stretches where the SPH plants are located. The physicochemical and biological characteristics of the water streams were analyzed, as well as the riparian ecological quality. Results showed that the presence of the hydropower plants did not significantly influence the physical and chemical characteristics of the water. There were no alterations of the benthic macroinvertebrate community at any of the plants except for one, and the riparian habitat was in general classified as good quality or close to natural conditions for all plants.

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48

Ceribasi, Gokmen, Ahmet Iyad Ceyhunlu, Andrzej Wałęga, and Dariusz Młyński. "Investigation of the Effect of Climate Change on Energy Produced by Hydroelectric Power Plants (HEPPs) by Trend Analysis Method: A Case Study for Dogancay I–II HEPPs." Energies 15, no. 7 (March 28, 2022): 2474. http://dx.doi.org/10.3390/en15072474.

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One of the most important measures taken in reducing the impact of climate change resulting from global warming is the production of energy from clean and renewable resources. Hydroelectric power plants are leading renewable energy sources. In this study, the effects of climate change on hydroelectric power plants, a renewable energy source, have been investigated. Dogancay I and II Hydroelectric Power Plants, which are built on the Sakarya River located in the Sakarya basin of Turkey, was selected as a study area. Moreover, the monthly average energy, runoff, and efficiency parameters of hydroelectric power plants and the monthly average precipitation, temperature, and humidity physical parameters of the Sakarya province, which is a working area, were considered. The length of time-series data is 48 months (2015–2018). Analysis of the data was performed with the innovative polygon trend analysis (IPTA) method, which is one of the newest trend analysis methods. When the studies in the literature are examined, the IPTA method is applied to hydroelectric energy data for the first time thanks to this study. Therefore, it is thought that this study will contribute a great deal to the literature. As a result of this study, a generally decreasing trend was observed in IPTA graphs of energy, flow, and efficiency parameters. In terms of the physical parameters of rainfall, temperature, and humidity, there was a decreasing trend in rainfall and humidity graphs and no trend in temperatures was observed.

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49

Hidalgo, Ieda G., Darrell G. Fontane, Secundino Soares F., Marcelo A. Cicogna, and João E. G. Lopes. "Data Consolidation from Hydroelectric Plants." Journal of Energy Engineering 136, no. 3 (September 2010): 87–94. http://dx.doi.org/10.1061/(asce)ey.1943-7897.0000024.

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50

Obodovskiy, O., V. Onischuk, and O. Pochaievets. "PERSPECTIVES OF THE USAGE OF HYDROPOWER POTENTIAL OF THE RIVERS OF THE DNIPRO RIVER BASIN (ON THE EXAMPLE OF THE ROS RIVER)." Visnyk of Taras Shevchenko National University of Kyiv. Geology, no. 1 (84) (2019): 56–62. http://dx.doi.org/10.17721/1728-2713.84.08.

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Анотація:

A new scientific and technological approach concerning the high level of ecological usage of hydropower potential of rivers in the Dnipro river basin is presented. The constructive and layout solutions for the declared small high-ecological hydroelectric power plants are presented. Examples of hydraulic calculation of pressure derivation are given and the power of a hydroelectric power plant is determined taking into account the effect of an additional electromagnetic field on its individual working bodies. The Ros is taken as the pilot river, which shows the locations of universal small high-ecological hydroelectric power stations and their main operating characteristics. In addition, recommendations are made regarding the rational allocation of hydroelectric power plants, taking into account the type of channel. The scientific novelty of the new technological approach is the use of an additional local electromagnetic field at the end of the pressure pipeline at a section length of at least 10 m, on the nozzle and on the turbine. The presence of an electromagnetic field around the turbine and generator enables the stations to operate at significant speeds (from 600 to 16 thousand revolutions per minute). In addition, in the background of the electromagnetic field, due to the absence of friction in the bearings, the life of turbines and generators increases. The universality of new hydroelectric power plants is explained by the fact that such stations can be used on any water facility (mountain or plain river, lake, reservoir or near the reservoir). The technical and economic efficiency of high-ecological hydroelectric power plants is assessed by the high level of environmental safety of the water object, the cost-effectiveness of construction and the achieved level of safety during flood passage, which is achieved by minimal interference and water use of the water object. In addition, the work of the station is effective at the minimum volume of water drain on any part of the river, almost without violating the hydroecological parameters of the water object. Comparative analysis of the estimated cost of a small hydroelectric power station near the village is presented.

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