scholarly journals Расчет аэродинамических характеристик ветроэнергетической установки с лопастями в виде вращающихся цилиндров

2021 ◽  
Vol 47 (20) ◽  
pp. 52
Author(s):  
Н.К. Танашева ◽  
А.Р. Бахтыбекова ◽  
Н.Н. Шуюшбаева ◽  
А.К. Тусупбекова ◽  
А.Ж. Тлеубергенова
Keyword(s):  
Power Plant ◽  
Wind Energy ◽  
Wind Power ◽  
Cross Section ◽  
Rotating Cylinder ◽  
Aerodynamic Characteristics ◽  
Energy Utilization ◽  
Wind Power Plant ◽  
Utilization Coefficient ◽  
Aerodynamic Parameters

The results of studies on determining the speed of a wind power plant and calculating the wind energy utilization coefficient of a rotating cylinder constant cross-section with a smooth surface are presented. With the help of experimental and theoretical methods, studies of the main aerodynamic characteristics the efficiency of a wind power plant with blades in the form of rotating cylinders were carried out. The changes in the aerodynamic parameters of the flow were 2 m/s and higher. The results showed that the value of the wind energy utilization coefficient decreases with an increase in the speed of the incoming flow. It is experimentally established that the value of the speed a wind power plant decreases with an increase in the Reynolds number.

scholarly journals A Wind Power Plant with Thermal Energy Storage for Improving the Utilization of Wind Energy

Energies ◽  
2017 ◽  
Vol 10 (12) ◽  
pp. 2126 ◽  
Author(s):  
Chang Liu ◽  
Mao-Song Cheng ◽  
Bing-Chen Zhao ◽  
Zhi-Min Dai
Keyword(s):  
Energy Storage ◽  
Power Plant ◽  
Wind Energy ◽  
Wind Power ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Wind Power Plant

scholarly journals Determining wind energy resources in Turkmenistan

2021 ◽  
Vol 22 (6) ◽  
pp. 143-154
Author(s):  
K. A. Saryyev
Keyword(s):  
Power Plant ◽  
Wind Energy ◽  
Wind Power ◽  
Social Issues ◽  
Research Work ◽  
Energy Resources ◽  
Wind Power Plant ◽  
Energy Potential ◽  
Wind Energy Potential ◽  
Wind Energy Resources

THE PURPOSE. Studying the complex issues associated with providing consumers who are away from the central power supply system with environmentally safe renewable energy source, i.e. conversion of wind energy into electrical energy and uninterrupted supply of electricity to consumers. In this area, one of the complex issues is to determine the wind energy resources in the area where it is planned to install a wind farm.The article deals with the determination of wind energy resources in Turkmenistan. Using databases obtained from meteorological stations over several years, calculations of wind energy resources by region are carried out. This will quickly and in detail analyze the wind energy potential in a particular area to assess the choice of capacity of the projected wind turbines, with the aim of ensuring sustainable development of the region and the reliability of electricity supply.METHODS. In order to estimate the wind energy resources in the area it is necessary to determine the average wind speed per year. In this research work the average annual wind speeds obtained from meteorological stations installed in different regions of Turkmenistan were used. These data were compared with the actual data obtained from the 2 kW wind power plant installed at the research site of the State Energy institute of Turkmenistan and the relevant graphs were built. The results of the obtained data can be used for optimal selection of wind power plant locations and assessment of wind energy resources of the region. RESULTS.As a result of the calculations, wind energy reserves in the region and for the regions of Turkmenistan were determined, as well as the optimal locations of wind farms.Using the technical characteristics of a 2kW wind power plant, the average annual electricity output of a wind power plant of different capacity is determined.With the correct definition of wind energy potential, there is an opportunity to solve energy, economic, environmental and social issues of the country. And also there is an opportunity to mitigate climate change on the basis of wind energy installations, and their resources, environmental benefits, goals and objectives on the scientific methodological basis in the field of wind energy for implementation of state programs for energy conservation in Turkmenistan and energy supply of the region.CONCLUSIONS. On the basis of the carried out scientific work the wind energy resources and technical potentials of wind power plants in the territory of Turkmenistan were determined and the database for compiling the wind energy cadastre was created.

The Research on the Wind Energy Distribution over Complex Terrain of Wind Power Plant

2010 ◽  
Vol 143-144 ◽  
pp. 1186-1189
Author(s):  
Yong Qian Liu ◽  
Zi Chan Tian ◽  
Fen Hua Li ◽  
Jian Xing
Keyword(s):  
Power Plant ◽  
Wind Energy ◽  
Energy Distribution ◽  
Wind Power ◽  
Turbulence Model ◽  
Complex Terrain ◽  
Wind Power Plant ◽  
Wind Tunnel Experiments ◽  
Suitable Site ◽  
Selection Of

The accurate prediction of the wind energy distribution over terrains is important for making an appropriate selection of a suitable site for installing wind power plant. In this study, numerical simulations of the two-dimension hill over smooth and roof surface have been done using three different turbulence model :standard model and other revised models ,and the simulation results have been prepared with wind tunnel experiments ,in order to obtain the best turbulence model

scholarly journals Using Intuitionistic Fuzzy TOPSIS in Site Selection of Wind Power Plants in Turkey

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Babak Daneshvar Rouyendegh ◽  
Abdullah Yildizbasi ◽  
Ümmühan Z. B. Arikan
Keyword(s):  
Power Plant ◽  
Wind Energy ◽  
Wind Power ◽  
Site Selection ◽  
Renewable Energy Sources ◽  
Fuzzy Topsis ◽  
Energy Sources ◽  
Wind Power Plant ◽  
Topsis Method ◽  
Plant Site

The reduction of energy resources and the increase in environmental consciousness have recently increased the interest in renewable energy sources. Wind energy is from renewable energy sources, which are used in many countries. Turkey has a lot alternative wind energy plants thanks to its favorable geographical location. Where the wind power plant is to be established is a complex and important decisive factor. It is very important to select the appropriate wind power plant site to take advantage of wind energy and reduce costs. In this study, we aimed to reach the solution of wind energy plant site selection. For this purpose 4 alternative wind power plant locations have been identified. To evaluate the alternatives, 10 criteria in four dimensions including wind potential, location, cost, and social benefits are selected. Since the Multicriterion Decision Making (MCDM) methods are often used in problem of location selection from past to present, TOPSIS method combined with intuitionistic fuzzy set (IFS) has been used to achieve this goal. The main purpose of the TOPSIS method is to rank the alternatives in the worst way. The IFS are used to reflect approval, rejection, and hesitation of decision makers by dealing with real life uncertainty, imprecision, vagueness, and linguistic human decisions. Finally, a numerical example is applied for wind power plant site selection. In order to demonstrate the effectiveness of IFS, the problem is solved by the Fuzzy TOPSIS method using the same data. Then, the obtained results are compared with the IFS method to show the effectiveness of the proposed method.

scholarly journals PERENCANAAN CHARGER CONTROLLER DAN BATERAI PADA PROTOTYPE PLTB SKALA KECIL DI TEKNIK LISTRIK POLINEMA

2021 ◽  
Vol 9 (1) ◽  
pp. 97-102
Author(s):  
Wijaya Kusuma ◽  
Anang Dasa Novfowan ◽  
Abdul Manaf
Keyword(s):  
Energy Storage ◽  
Power Plant ◽  
Wind Energy ◽  
Wind Power ◽  
Alternative Energy ◽  
Power Plants ◽  
Electrical Energy ◽  
Prototype System ◽  
Wind Power Plant ◽  
Electrical Energy Storage

One of the efforts to tackle the energy crisis is by reducing dependence on fossil energy sources and utilizing alternative energy. One of the alternative energy is wind energy. Wind energy can be used to make power plants. Wind power plant is a method to generate electrical energy by turning the wind turbine which connected to the generator, then the electrical energy which generated by generator used for supplying the load. However, the availability of the wind energy are not always constant in strength, thus to make this power plant work continuously to supplying the load it needed the element of electrical energy storage,that is battery.In order to make the electrical energy storage become efficient then used the component to support the battery charging, the presence of these component the energy produced can be stored optimallyand the battery life can be longer. The purpose of this study is to design and analyze the performance of the charger controller and battery in the PLTB system which is then used to support the work of the Wind Power Plant prototype system in State Polytechnic of Malang. The result of this study is how to choose the charger controller and battery based on some consideration, the characteristics of each components before and after be assembled in Wind Power Plant prototype system in State Polytechnic of Malang

scholarly journals Calculation and simulation of aerodynamic characteristics of wind power plant turbine

2019 ◽  
Author(s):  
Aleksandrs Urbahs ◽  
Nikolaj Kuleshov ◽  
Dmitrijs Titovs ◽  
Leonid Chernin
Keyword(s):  
Power Plant ◽  
Wind Power ◽  
Aerodynamic Characteristics ◽  
Wind Power Plant

scholarly journals Correct Cross-Section of Cable Screen in a Medium Voltage Collector Network with Isolated Neutral of a Wind Power Plant

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3026
Author(s):  
Huthaifa A. Al_Issa ◽  
Mohamed Qawaqzeh ◽  
Alaa Khasawneh ◽  
Roman Buinyi ◽  
Viacheslav Bezruchko ◽  
...  
Keyword(s):  
Power Plant ◽  
Wind Power ◽  
Cross Section ◽  
Power Plants ◽  
Open Data ◽  
Power Line ◽  
Power Lines ◽  
Wind Power Plant ◽  
Double Line ◽  
Simplified Method

The article discusses the selection of cables for power lines connecting wind turbine generators at the wind power plant. The screen cross-section of these cables should be selected considering the value of the screen current at double line-to-earth fault. To calculate this current, the dimensions of the cable should be known. However, these parameters are hidden and cannot be used during designing. Therefore, a highly simplified method is currently used in practice. It is shown that the errors from the highly simplified method are up to 33%. Authors propose a simplified method based on open data of cable manufacturers. The proposed method is compared with simulation results of a common model of cable power line and takes into account self and mutual inductances of the cores and screens. It is shown that the error of the proposed method is smaller than 4.0% for real cable power lines at wind power plants. However, for a long section of cable power line (2.5 km) the error of calculation might increase up to 6.3%. This allows us to use the proposed method for designing. In addition, the authors show how the results of the highly simplified method can be corrected to improve accuracy.

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