SPECIFIC FEATURES OF WATER-ENERGY REGIMES OF HPP IN SYMBIOSIS WITH SOLAR PLANTS

2021 ◽  
pp. 104-110
Author(s):  
O. N. CHERNYH ◽  
◽  
A. V. BURLACHENKO ◽  
V. V. VOLSHANIK
Keyword(s):  
Power Plants ◽  
Renewable Energy Sources ◽  
Economic Effect ◽  
Electric Power Industry ◽  
Energy System ◽  
Energy Regulation ◽  
Hydroelectric Power ◽  
Joint Work ◽  
Energy Complex ◽  
Hydroelectric Power Plants

The results of the analysis of the problems associated with the development of the world solar energy are presented. It is noted that at the present stage of the electric power industry, the potential of renewable energy sources (RES) is still poorly realized. The specific issues of water-energy modes of operation of hydroelectric power plants (HPPs), operating in symbiosis with solar photovoltaic installations (SPEU) have been identified, the schedule of which should be the same. It is shown that the operation of hydroelectric power plants and SPEU in the joint electric load schedule makes it possible to obtain a constructive and economic effect due to the fuel saving of power plants of various types, including thermal ones. The maximum capacity of the HPP-SPEU power complex is optimized by the installed capacity of the HPP while observing the full duplication of the SPEU capacity by other power plants of the energy system. It is shown on the example of the Lagdo hydroelectric complex in the northern Cameroon that under the conditions of developing countries with a large solar and hydraulic potential (Cameroon, Zimbabwe, Uganda, etc.), as well as for the southern regions of Russia, SPEU can produce up to 75% of the annual electricity generation during the low-water period of the year at its joint work in the energy complex with the hydroelectric power plant. This makes it possible to facilitate the redistribution of the river fl ow during the entire low-water period without attracting additional useful storage capacity of the reservoir. The developed methodology for optimizing the water-energy regulation regime can also be applied during the operation of the HPP of the HPP-SPEU energy complex along the watercourse, i.e. with daily flow regulation.

scholarly journals Prospects for the Development of Renewable Energy in the Crimean Peninsula

2021 ◽  
Vol 24 (4) ◽  
pp. 109-115
Author(s):  
Vyacheslav Valerievich Guryev ◽  
Vladimir Vyacheslavovich Kuvshinov ◽  
Boris Anatolevich Yakimovich
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Electric Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Electric Power Industry ◽  
Energy System ◽  
Crimean Peninsula ◽  
The Crimean Peninsula

The Crimean Peninsula is the flagship of the development of renewable energy, as it is not only an actively developing region, but also a resort center. The energy complex of the Crimean Peninsula in recent years has increased due to the construction of new power plants (Balaklava TPP and Tavricheskaya TPP) with a total capacity of 940 MW, as well as the construction of new 220 and 330 kV transmission lines, which ensured that the peninsula’s power supply deficit was covered. A review of the regional development and use of renewable energy sources is carried out. Based on the data obtained, an analysis is made of the problems and prospects for the development of renewable energy in the region. The development of renewable energy for the Crimean Peninsula plays an important role in order to achieve environmental safety and develop the economic potential of the region. The paper substantiates the priority use of renewable energy in the region, as well as the solution of emerging problems with an increase in the share of renewable energy in the total generation. The appearance of excess electricity in the power system and the possibility of balancing the generated power of renewable energy and thermal power plants, while reducing the cost of electricity. Investment attractiveness and active population growth in the region leads to an increase in generating capacity and an increase in the maneuverability of the energy system with a significant impact of RES. The efficiency of renewable energy in the energy system, the world experience in managing renewable energy generation, the actual impact of renewable energy on the energy system in conditions of electricity shortage, and forecast work schedules of the SES wind farm provided by the electric power industry entities in the assigned way are taken into account when forming the dispatch schedule and are accepted at the request of the subject. The available experience of existing SES in the power system of the Republic of Crimea and the city of Sevastopol requires additional research, including through field testing of generating equipment. Further full-scale tests should be carried out under the conditions of a real electric power mode of the power system, which requires the introduction of modern information technologies that ensure the exchange of technological information and the implementation of appropriate control actions. The work is underway to create a regulatory framework for the control of renewable energy source operation.

scholarly journals Hydroelectric Power Plants ’ Re Servoirs And Their Impact On The Environment

2015 ◽  
Vol 1 ◽  
pp. 171 ◽  
Author(s):  
M. I. Balzannikov ◽  
E. G. Vyshkin
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Hydroelectric Power Plant ◽  
Energy Sources ◽  
Hydroelectric Power ◽  
Hydroelectric Power Plants ◽  
Different Types ◽  
The Way

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.

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.

Implementation of the Method of Lagrange for Optimal Modes of Energy System of Tajikistan

2014 ◽  
Vol 698 ◽  
pp. 726-731 ◽  
Author(s):  
Sherkhon M. Sultonov ◽  
Yuri A. Sekretarev ◽  
Sergey V. Mitrofanov
Keyword(s):  
Lagrange Multipliers ◽  
Power Plants ◽  
Energy System ◽  
Operating Conditions ◽  
Power Grids ◽  
Hydroelectric Power ◽  
Optimum Distribution ◽  
Hydroelectric Power Plants ◽  
Distribution Of Power ◽  
Method Of Lagrange Multipliers

This paper proposes a reduction in the deficit of electricity in the energy system in Tajikistan, by optimizing the operating conditions of hydroelectric power plants of the power system. The paper reveals the application of the method of Lagrange multipliers for the solution of the optimum distribution of power between hydroelectricity power grids corresponding to the minimum water flow.

scholarly journals Power price in the conditions of market relations UES of Russia

2020 ◽  
Vol 216 ◽  
pp. 01047
Author(s):  
Mikhail Chukreyev
Keyword(s):  
Heat Supply ◽  
Nuclear Power ◽  
Power Plants ◽  
Thermal Power ◽  
Electric Power Industry ◽  
Price Formation ◽  
Hydroelectric Power ◽  
Hydroelectric Power Plants ◽  
Main Component ◽  
Market Relations

In modern conditions of market relations in the electric power industry, a mechanism is needed to regulate the purchase and sale of power, which should not lead to a deterioration in the EPS reliability. Competitive power take-off became the main component of this mechanism. Within its framework, nuclear power plants, hydroelectric power plants, new power units, as well as thermal power plants, which are necessary for heat supply to consumers, are mandatory selected. The article examines the process of price formation for capacity, its relationship with demand, shows the main features that affect its final indicators.

scholarly journals WAYS TO IMPROVE THE EFFICIENCY OF POWER SUPPLY TO REMOTE OBJECTS

2021 ◽  
pp. 69-77
Author(s):  
S. P. Murоvsky
Keyword(s):  
Power Supply ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Thermoelectric Generators ◽  
Hydroelectric Power ◽  
Combined Power Supply ◽  
Hydroelectric Power Plants ◽  
Electrochemical Storage ◽  
Supply Systems

The paper considers ways to improve the efficiency of combined power supply systems for remote facilities based on renewable energy sources. The developed circuit solution for the combined power supply of remote facilities based on mini-hydroelectric power plants, GT and thermoelectric generators installed on the boiler's gas outlet pipe will allow redistributing energy between consumers inside the facility or storing it in the electrochemical storage system during the period of minimum consumption.

FEATURES OF THE USE OF ELEMENTS OF INTEGRATED HYDROELECTRIC FACILITIES IN CONJUNCTION WITH SOLAR PHOTOVOLTAIC INSTALLATIONS

2021 ◽  
pp. 63-72
Author(s):  
O. N. CHERNYH ◽  
◽  
A. V. BURLACHENKO ◽  
V. V. VOLSHANIK
Keyword(s):  
Solar Cells ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Solar Photovoltaic ◽  
Hydroelectric Power ◽  
Green Technologies ◽  
Power Stations ◽  
Hydroelectric Power Plants ◽  
Solar Power Plants ◽  
Reliable Power Supply

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.

scholarly journals Analysis of the development and implementation of the risk management system in international hydropower projects

2018 ◽  
Vol 15 (5) ◽  
pp. 68-75 ◽  
Author(s):  
I. V. Rykunov
Keyword(s):  
Risk Management ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Hydroelectric Power ◽  
Hydroelectric Power Plants ◽  
Required Quality ◽  
Daily Load ◽  
Electrical Supply

The activity of any enterprise is always associated with risk. This is especially true of hydropower enterprises, since they work in the conditions of renewable energy sources, which are directly dependent on nature. This necessitates the introduction of the concept of risk management, which will take into account risk factors in the process of developing and approving management decisions.Hydroelectric power plants play an important role in ensuring the required quality of electrical supply, participating in regulating voltage and frequency, covering the uneven part of daily load schedules, guaranteeing measured operation modes of nuclear and thermal power plants, increasing the safety and economy of operation of the final cycles load, performing the function of a temporary emergency and operational power reserve.The purpose of this article is to analyze the characteristics of risk management in hydropower, as well as to justify the development and feasibility of introducing the concept of risk management in hydropower.

scholarly journals Selected diagnostic methods used in Hydroelectric Power Plants

2021 ◽  
Vol 332 ◽  
pp. 01011
Author(s):  
Emil Golonka ◽  
Michał Pająk ◽  
Davor Kolar
Keyword(s):  
Power Plants ◽  
Greenhouse Gas Emission ◽  
Renewable Energy Sources ◽  
Global Market ◽  
Diagnostic Methods ◽  
Technical Diagnostics ◽  
Main Task ◽  
Hydroelectric Power ◽  
Correct Operation ◽  
Hydroelectric Power Plants

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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