scholarly journals Self-generated power supply of agricultural enterprises based on renewable energy sources

2020 ◽  
Vol 175 ◽  
pp. 11009
Author(s):  
Nikolay Rudenko ◽  
Valery Ershov ◽  
Viacheslav Evstafev
Keyword(s):  
Renewable Energy ◽  
Wind Power ◽  
Power Supply ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Power Installation ◽  
Horizontal Wind ◽  
Energy Sources ◽  
Wind Power Plants ◽  
Wind Power Installation

The article contains the following technical proposals for the power supply of autonomous agricultural facilities using renewable energy sources: the use of hybrid solar-wind power plants, the use of vortex wind power plants with a vertical axis to use both the energy of horizontal wind flows and the energy of upward air flows. The structure and operation algorithm of an autonomous power supply system based on a hybrid solarwind power plant and a diesel generator for autonomous agricultural facilities of small and medium power in regions where there is no distribution electric network are proposed. This system will allow for insufficient wind load to ensure reliable power supply to an autonomous agricultural facility with minimal use of diesel fuel. The design of a vortex wind power installation has been developed. The fastening on the shaft of the wind power installation of a conical helical blade with a variable radius, decreasing in the direction from the lower to the upper cut of the socket, improves the efficiency of the installation. The proposed installation makes it possible to use small winds and low-potential thermal ascending air currents, reduce low-frequency vibration and noise, and also increase the stability and efficiency of use of wind energy.

scholarly journals Mathematical Modeling of Power Supply of an Autonomic Enterprise Based on Wind Power Plants

2018 ◽  
Vol 7 (3.5) ◽  
pp. 4
Author(s):  
Valeri Telegin ◽  
Nikolai Titov ◽  
Anatoli Stepanov
Keyword(s):  
Wind Power ◽  
Power Supply ◽  
Small Businesses ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Geographical Location ◽  
Energy Sources ◽  
Wind Power Plants ◽  
Definition Of ◽  
Supply Systems

Power supply systems for small businesses based on renewable energy sources are most often based on converting wind energy, solar energy and water energy. Calculating its effectiveness is a time-consuming task, requiring the processing of a large amount of data specific for the geographical location of power generating units. In the article the technique of computer modeling of work of a park of wind power plants (WPP) with the purpose of definition of an optimum parity of their parameters is considered.   

scholarly journals Special Aspects of Using the Wind Power Plants In the Power Supply System

2021 ◽  
Vol 288 ◽  
pp. 01003
Author(s):  
Saken Koyshybaevich Sheryazov ◽  
Sultanbek Sansyzbaevich Issenov ◽  
Ruslan Maratbekovich Iskakov ◽  
Argyn Bauyrzhanuly Kaidar
Keyword(s):  
Renewable Energy ◽  
Smart Grid ◽  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Power Grid ◽  
Renewable Energy Sources ◽  
Power Grids ◽  
Energy Sources ◽  
Wind Power Plants

The paper describes special aspects of using the wind power plants (wind turbines) in the power grid. The paper provides the classification and schematic presentation of AC wind turbines, analyzes the role, place and performance of wind power plants in Smart Grid systems with a large share of renewable energy sources. The authors also reviews a detailed analysis of existing AC wind turbines in this paper. Recommendations are given for how to enhance the wind power plants in smart grids in terms of reliability, and introduce the hardware used in the generation, conversion and interface systems into the existing power grid. After the wind power plants had been put online, the relevance of the Smart Grid concept for existing power grids was obvious. The execution of such projects is assumed to be financially costly, requires careful study, and development of flexible algorithms, but in some cases this may be the only approach. The analysis of using wind turbines shows that the structural configuration of wind power plants can be based on the principles known in the power engineering. The approaches may differ, not fundamentally, but in engineering considerations. it is necessary to point out that the method of controlling dual-power machines is quite comprehensive so that their wide use will face operational problems caused by the lack of highly professional specialists in electric drives. Therefore, it seems advisable to use square-cage asynchronous generators in wide applications. The paper shows that as the renewable energy sources are largely used in power grids, there is an issue of maintaining the power generation at a required level considering the variability of incoming wind energy. This results in the malfunctions in the operation of relay protection devices and emergency control automatics (RP and ECA), and the complicated control. Also, the standards of the CIS countries and regulatory documents miss the requirements for the wind turbine protections, taking into account their specialty causing the inefficient standard protective logic, which does not work correctly in a number of abnormal and emergency operating modes, and especially Smart Grid in power grids.

scholarly journals Mathematical Modeling of Power Supply of an Autonomic Enterprise Based on Wind Power Plants

2018 ◽  
Vol 7 (3.5) ◽  
pp. 48
Author(s):  
Valeri Telegin ◽  
Anatoli Stepanov
Keyword(s):  
Wind Power ◽  
Power Supply ◽  
Small Businesses ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Geographical Location ◽  
Energy Sources ◽  
Wind Power Plants ◽  
Definition Of ◽  
Supply Systems

Power supply systems for small businesses based on renewable energy sources are most often based on converting wind energy, solar energy and water energy. Calculating its effectiveness is a time-consuming task, requiring the processing of a large amount of data specific for the geographical location of power generating units. In the article the technique of computer modeling of work of a park of wind power plants (WPP) with the purpose of definition of an optimum parity of their parameters is considered.  

scholarly journals A Study for the Optimal Exploitation of Solar, Wind and Hydro Resources and Electrical Storage Systems in the Bormida Valley in the North of Italy

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5291
Author(s):  
Stefano Bracco
Keyword(s):  
Renewable Energy ◽  
Wind Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Green Energy ◽  
Energy Sources ◽  
Medium Size ◽  
Low Carbon ◽  
The North ◽  
Wind Power Plants

The exploitation of distributed renewable energy sources leads to a low-carbon energy transition, mainly based on the optimal integration of hydro, PV and wind power plants with the remaining high-performance fossil-fuel power stations. In the last twenty years, European Union (EU) countries have shown a significant increase of the power installed in new PV and wind power plants, together with the refurbishment of small and medium size hydro stations. In particular, in Italy, PV and wind energy production has strongly increased and nowadays there are regions characterized by a very green energy mix. In this new scenario, energy storage becomes a viable solution to mitigate the variability of renewable energy sources thus optimizing the network operation. The present paper is focused on the Liguria region, in the North of Italy and in particular on the Bormida Valley where nowadays more than the half of the annual electricity consumption is covered by the renewable energy local production. The paper describes the current energy situation and proposes an optimization tool to investigate the possibility of installing new PV and wind power plants, as well as energy intensive storage units based on sodium-sulphur batteries; moreover, different scenarios are analyzed through the definition of economic and environmental key performance indicators.

scholarly journals Competitiveness of Solar and Wind Power Plants in the Countries of the Commonwealth of Independent States

2020 ◽  
Vol 63 (4) ◽  
pp. 301-311
Author(s):  
O. V. Marchenko ◽  
S. V. Solomin
Keyword(s):  
Renewable Energy ◽  
Central Asia ◽  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Wind Power Plants ◽  
Independent States ◽  
Favorable Conditions

Techno-economic indicators of renewable (solar and wind) and non-renewable energy sources are systematized, taking into account the interval of their uncertainty for the conditions of the countries of the Commonwealth of Independent States (CIS). The main attention was paid to Russia and the countries of Central Asia (Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan), where there are the most favorable conditions for the development of solar and wind energy. A comparison of renewable and non-renewable energy sources by the criterion of the cost of generated electricity has been made. It is shown that the payment for greenhouse gas emissions increases the competitiveness of solar and wind power plants in the energy markets. Under favorable conditions for renewable energy, solar and wind installations in some areas can produce cheap electricity at a cost of 3–5 cents/(kW×h). With such values, they can be competitive without additional measures to stimulate their implementation. Using the mathematical model REM-2 (Renewable Energy Model), energy sources of different types were compared taking into account system effects. The power supply system consists of photovoltaic converters, wind turbines that enable the possibility of short-term accumulation of electricity and power consumption from a backup power source. Modeling of photoelectric converters and wind turbines operating modes was performed by time (hours) for different values of solar radiation arrival and wind speed. The optimal ratios between electricity production by photovoltaic converters and wind turbines, as well as the optimal level of electricity consumption from the network under different climatic and economic conditions, were determined. The economic efficiency of joint use of solar and wind energy in the CIS countries, primarily in Russia (with the exception of the northern regions) and the countries of Central Asia, is shown.

scholarly journals CALCULATION OF OPTIMAL PARAMETERS FOR STORAGE AND RENEWABLE ENERGY SOURCES IN ISOLATED ENERGY SYSTEMS

2021 ◽  
pp. 91-95
Author(s):  
Mykhailo Syvenko ◽  
Oleksandr Miroshnyk
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Power Supply ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
Energy Sources ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Supply Systems

A detailed substantiation of the use of electric energy storage devices in the presence of generators on renewable energy sources in the power supply system is given. The dependence of the storage parameters on the composition and priority of generation in the system is investigated. The solution of the problem of determining the parameters of electricity storage devices by means of purposeful simulation of generation parameters is considered. The results of the choice of power and capacity of the energy storage using technical and economic indicators are shown. Optimal parameters of electric energy storage devices as one of the most important means of ensuring the activity of isolated power supply systems together with selection of generating devices are determined. The results of calculations of capacity of renewable energy sources in isolated power supply systems in combination with classical energy sources are given. The necessity of using the principle of activity of the distribution electric network and the possibility of its realization is demonstrated. The optimal storage capacity as a function of the share of renewable generation, the non-integrated energy produced by renewable sources and the total storage capacity are plotted for several isolated systems. The main points of the used model of the power supply system of isolated networks are given. In the studied isolated power supply systems, wind power plants and solar power plants, which have significant unpredictability of generation, are used as generation based on renewable energy sources. The problem of undersupply of electricity to the grid by stepwise increase of generation is analysed. The results of the multi-step selection of power and energy consumption of electricity storage are determined by technical criteria.

scholarly journals Features of operation of wind power stations as an supplementary source of electricity for non-traction consumers of railway electric mains

2019 ◽  
pp. 36-41
Author(s):  
Kachan Yu ◽  
Kuznetsov V
Keyword(s):  
Renewable Energy ◽  
Wind Speed ◽  
Wind Power ◽  
Wind Turbines ◽  
Power Supply ◽  
Renewable Energy Sources ◽  
Wind Farms ◽  
Energy Sources ◽  
Railway Transport ◽  
Supply Systems

Purpose. Identify the features of operation of wind farms as an auxiliary supplier of electricity for non-traction consumers of railway networks and analyze the main factors that directly affect the use of wind farms due to the random nature of wind flow and additional factors due to the above conditions in different climates. The research methodology is based on modern methods of computational mathematics, statistics and information analysis using modern computer technology. Findings. The need to use renewable energy sources in the power supply systems of non-traction consumers of railway transport is obvious. Given the constant growth of prices and tariffs for electricity in Ukraine, more and more attention is paid to its savings and the search for the cheapest and most affordable alternative sources. The authors consider issues related to the possibility of using additional generation of electricity in the power supply systems of railway transport through the use of wind turbines, including for non-traction consumers. The analysis of wind flow features in some regions of Ukraine was carried out, and the measurement of wind speed in Zaporizhia and Dnipropetrovsk regions was obtained with the help of a compact wind speed sensor manufactured by Micro-Step-MIS LLC (Russia). The obtained values of wind speed were recorded and stored digitally. The received information of the above device was processed. The authors conclude that in the case of using wind turbines as an additional power source in the networks of non-traction consumers of railway power supply systems it is economically advantageous to connect them directly to these networks and fully use all electricity produced by them, reducing its consumption from this power supply system. The originality is that the use of renewable energy sources in the power supply systems of non-traction consumers of railway transport, in particular wind turbines, is proposed. Practical implications. Introduction of wind power plants as an auxiliary supplier of electricity for non-traction consumers of railway power grids in order to minimize electricity costs. Keywords: renewable energy sources, quality of electric energy, wind power plant, power supply networks of railway transport, non-traction consumers of railway electric networks, electricity production, wind speed.

scholarly journals Experimental wind power and photovoltaic plants as a basis for researching to use renewable energy sources in the power supply systems for non-traction consumers

2019 ◽  
pp. 54-60
Author(s):  
Kachan Yuriy ◽  
Kuznetsov Vitaliy
Keyword(s):  
Renewable Energy ◽  
Wind Power ◽  
Power Supply ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
General View ◽  
Railway Transport ◽  
Photovoltaic Plant ◽  
Photovoltaic Plants ◽  
Supply Systems

Purpose. Describe the tools used by the authors for experimental research on the possibilities of using renewable energy sources in the power supply systems of non-traction consumers of railway transport. The methodology of research is based on modern methods of computational mathematics, statistics and information analysis using modern computer technology. Findings. To date, there is no comprehensive approach and specific reasonable measures for the introduction of re-newable energy sources in the energy supply of non-traction consumers. The article presents examples of the introduction of renewable energy sources in the power supply systems of railways abroad. It is noted that when using different renewable energy sources in the power supply systems of non-traction consumers, it is necessary to have a volume of statistical information to determine their technical and economic indicators. The classification of wind power plants with a horizontal axis is given. The schematic diagram and general view of the developed experimental wind power plant are given. The schematic diagram and general view of the developed experimental photovoltaic plant are given. The equipment used for research of wind flow and intensity of solar radiation in places of possible location of wind power or photovoltaic installations is considered. The presented experimental wind power and photovoltaic plants, which serve for a comprehensive study of the possibilities of using wind and solar sources in the power supply systems of non-traction consumers, are generalized and allow to clarify the necessary data for decision making. The originality is the introduction of renewable energy sources in the power supply system of non-traction consumers of railway transport. Practical implications. The use of additional renewable energy sources to supply non-traction consumers minimizes electricity consumption. Keywords: renewable energy sources, quality of electric energy, wind power plant, photovoltaic plant, power supply networks of railway transport, traction and non-traction consumers, electricity production

scholarly journals Mathematical modeling of the reliability of a hybrid micro-power plant

2021 ◽  
Vol 5 (47) ◽  
pp. 4-4
Author(s):  
Alexander Saakian ◽  
◽  
Keyword(s):  
Power Plant ◽  
Wind Power ◽  
Power Supply ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Photovoltaic Modules ◽  
Reliability Indicators ◽  
Micro Power ◽  
Supply Interruptions

In the conditions of regions with relatively low solar and wind potentials, interruptions in power supply to consumers powered by micro-power plants based on renewable energy sources may be due to a decrease in the power of wind power plants, photovoltaic modules with insufficient wind speed and insolation, respectively, to provide power to consumers. A study of the reliability of a system including a wind power plant, photovoltaic modules, a hybrid charge controller, an energy storage device and an inverter was carried out using a logical-probabilistic method. As part of the study, an analysis was made of the structure of the power supply system and its modes of operation in the event of various events: failure of system elements, replacement of failed elements, diagnostics of elements, decrease in the power of the wind power plant and photovoltaic modules. Combinations of events leading to a power failure of consumers connected to a hybrid micro-power plant have been determined. A fault tree was built for the hybrid micro-power plant. Expressions are obtained for calculating the probability of short-term, long-term power supply interruptions, the probability of power supply interruptions occurring when off-design insolation and wind speed occur. Mathematical modeling of the reliability of the hybrid micro-power plant for the conditions of the central part of the Republic of Mari El has been carried out. It has been determined that the probability of a system failure is determined mainly by the probability of long power outages. In this case, the reliability indicators of the system as a whole are largely determined by the values of the reliability indicators of the hybrid controller and inverter. Keywords: YBRID MICRO-POWER PLANT, RENEWABLE ENERGY SOURCES, RELIABILITY, RURAL POWER SUPPLY

scholarly journals Prospects for green hydrogen production in the regions of Russia

2021 ◽  
Vol 265 ◽  
pp. 04011
Author(s):  
Liudmila Nefedova ◽  
Kirill Degtyarev ◽  
Sophia Kiseleva ◽  
Mikhail Berezkin
Keyword(s):  
Hydrogen Production ◽  
Wind Power ◽  
Co2 Emission ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Hydrogen Energy ◽  
Global Trends ◽  
Wind Power Plants ◽  
Regions Of Russia

The article discusses the possibilities of hydrogen production using renewable energy sources in Russia for energy storage and for export. The global trends in the development of green hydrogen energy reducing the CO2 emission are highlighted. The analysis of the potential for hydrogen production in regions of Russia using electricity from operating wind power plants (WPPs), as well as wind power projects planned for construction until 2024 has been carried out.

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