scholarly journals The main types of wind turbines-generators in the power supply system

2022 ◽  
Vol 23 (5) ◽  
pp. 24-33
Author(s):  
S. K. Sheryazov ◽  
S. S. Issenov ◽  
R. M. Iskakov ◽  
A. B. Kaidar
Keyword(s):  
Wind Energy ◽  
Wind Power ◽  
Wind Turbines ◽  
Smart Grids ◽  
Power Plants ◽  
Power Conversion ◽  
Power Converter ◽  
Wind Energy Conversion ◽  
Wind Power Plants ◽  
Asynchronous Generator

PURPOSE. Conduct a detailed analysis of existing wind turbines. Analyze the role, place and features of the functioning of wind power plants. Provide various options for generators and schemes for converting wind energy into electricity. Provide recommendations for improving the reliability of wind turbines in smart grids.METHODS. The article was prepared using analytical methods, statistical, theoretical, factorial and technical methods.RESULTS. A fixed speed asynchronous generator used in a wind power conversion system (WECS) without a power converter interface draws a significant portion of the reactive power from the grid. This configuration features simple, reliable operation. Wind turbine asynchronous generator with dual power supply. can improve overall power conversion efficiency by performing maximum power point tracking (MPPT), and an increase in speed of about 30% can improve dynamic performance and increase resilience to system disturbances that are not available for turbine types 1 and 2. The use of full-scale 100% power converters will significantly increase the productivity of SPEV wind energy conversion systems, but will slightly increase the cost of the power converter, up to 7% - 12% of the total equipment cost. By using a large number of pole pairs for all types of permanent magnet synchronous generator (PMG), the turbine gearbox can be removed. This type of wind energy conversion system is more resilient to grid disruptions compared to type 1, 2 and 3 wind systems. The review shows that types 3 and 4 technologies are used to most efficiently sell and recycle wind turbines in electricity markets.CONCLUSION. The article analyzes the features of the functioning of wind power plants operating on the grid. Various options for generators and schemes for converting wind energy into electricity are presented. A detailed analysis of existing wind turbines is provided. Recommendations are given for improving the reliability and efficiency of wind power plants in smart grids.

scholarly journals Классификация систем преобразования энергии ветра

2020 ◽  
pp. 356-365
Author(s):  
Saken Koishibaevich Sheryazov ◽  
S. S. Isenov ◽  
A. B. Kaidar
Keyword(s):  
Wind Energy ◽  
Detailed Analysis ◽  
Wind Power ◽  
Smart Grids ◽  
Power Plants ◽  
Electrical Energy ◽  
Wind Power Plants ◽  
Power Installations

The article analyzes the role, place and features of functioning of wind power plants. Several variants of generators and schemes for converting wind energy into electrical energy are given. A detailed analysis of existing wind units is provided. Recommendations are given for improving the reliability of wind power installations in smart grids.

scholarly journals The Prospects for Wind Energy Development in the Republic of Belarus

2019 ◽  
Vol 62 (2) ◽  
pp. 124-134 ◽  
Author(s):  
Y. S. Petrusha ◽  
N. A. Papkova
Keyword(s):  
Power Generation ◽  
Wind Energy ◽  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Thermal Power ◽  
Utilization Factor ◽  
Wind Power Plants ◽  
Joint Application ◽  
The Impact

The use of wind turbines to create wind energy is one of the main alternatives to the traditional technologies of power generation. The exclusion of combustion products emissions at thermal power plants that operate on hydrocarbon fuel, as well as the exclusion of the fuel component of the cost of electricity generation makes the wind power technology very attractive. However, the rigor of the operation requirements of wind turbines as part of power systems, low density of the flow of primary energy source and the lack of control of it, low utilization of installed capacity, limited operating life, shutdowns in the conditions of squally gusts of wind and ice formation, large areas of alienated land, the impact of noise and infrasonic vibrations and the problems of utilization of large-size structural elements and foundations require a comprehensive analysis of conditions of wind turbines application. Despite the absence of desert areas and of restrictions on the construction of ultra-high structures the analysis of natural and climatic conditions of Belarus demonstrates favorable natural and landscape conditions for the development of wind power generation. The principal task is to choose the location of wind power plants with due regard to environmental requirements, temperature and humidity conditions, terrain and geological features of the location. The results of calculations of the wind flow conditions showed the preference for the joint application of the Weibull and Rayleigh functions that provide the confidence interval of the approximation of the wind speed function, while the terrain specific features make it possible to expect to obtain higher values of the established capacity utilization factor. The development of a distributed energy generation accompanied by Smart Grid technology wide use over electric networks (which would provide new opportunities for consumers and make it possible to eliminate the monopoly of powerful power plants and to reduce burden of basic costs of big power production) ought to be considered as obvious prospect of wind power plants application.

scholarly journals Области применения и возможность использования асинхронных генераторов в автономных ветроэнергетических установках

2021 ◽  
Vol 70 (2) ◽  
pp. 93-96
Author(s):  
А.Н. Соболь ◽  
А.А. Андреева
Keyword(s):  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Excitation Frequency ◽  
Lower Power ◽  
Wind Power Plants ◽  
Semiconductor Converter ◽  
Asynchronous Generator ◽  
Frequency Character ◽  
Dual Power

Autonomous asynchronous generators can be classified depending on how the excitation frequency character, a method of stabilizing a voltage, type and number of phases. The issue of using autonomous asynchronous generators with capacitive excitation in wind power plants is quite relevant. Advantages of wind turbines based on a dual power asynchronous generator: the use of a semiconductor converter of lower power, which can significantly reduce its cost

scholarly journals Optimization of Power and Levelized Cost for Shrouded Small Wind Turbine

Inventions ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 59
Author(s):  
Hasanali Khojasteh ◽  
Younes Noorollahi ◽  
Mojtaba Tahani ◽  
Mehran Masdari
Keyword(s):  
Wind Energy ◽  
Objective Function ◽  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Large Scale ◽  
Renewable Energies ◽  
Levelized Cost ◽  
Small Wind Turbines ◽  
Input Parameters

Nowadays, by increasing energy demand and considering the importance of environmental issues in recent decades, the use of renewable energies is expanding. Among renewable energies, wind power and its technology are growing and evolving more rapidly. Resource assessment in Iran has revealed the significant potential of wind energy around the country. To further develop wind energy in the country and create large-scale wind power plants, the consideration of distributed power generation using small wind turbines for applications in agricultural and residential use is needed. Conventional small wind turbines and small wind lens turbines have been developed in recent years. In this research project, a small wind lens turbine is designed. The advantages of this turbine are an increased production capacity and reduced cut-in speed and noise pollution. In this study, a lens (or shroud) is added to a small turbine, and the maximized annual energy production (AEP) and minimization of the levelized cost of energy (LCOE) are modeled. We applied the NSGA-II algorithm for optimization to find the best answer. The input parameters in the objective function of the AEP are cut-in, cut-out, rated speeds, scale factor, and shape factor. Additionally, the input parameters in the objective function of the LCOE are the power production, initial capital cost, annual operating expenses, and balance of energy. The results indicate that installing a wind lens turbine in Kish Island led to an LCOE decrease of 56% on average, and we can see an 83% increase in the AEP. In the Firoozkooh area, an average reduction of 59% in the LCOE and 74% increase in the AEP for a wind lens turbine is observed.

scholarly journals Optimal Wind Turbines Micrositing in Onshore Wind Farms Using Fuzzy Genetic Algorithm

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Jun Yang ◽  
Rui Zhang ◽  
Qiuye Sun ◽  
Huaguang Zhang
Keyword(s):  
Genetic Algorithm ◽  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Wind Farms ◽  
Economic Benefits ◽  
Wind Power Plants ◽  
Fuzzy Genetic Algorithm ◽  
Terrain Effect ◽  
Fuzzy Genetic

With the fast growth in the number and size of installed wind farms (WFs) around the world, optimal wind turbines (WTs) micrositing has become a challenge from both technological and mathematical points of view. An appropriate layout of wind turbines is crucial to obtain adequate performance with respect to the development and operation of the wind power plant during its life span. This work presents a fuzzy genetic algorithm (FGA) for maximizing the economic profitability of the project. The algorithm considers a new WF model including several important factors to the design of the layout. The model consists of wake loss, terrain effect, and economic benefits, which can be calculated by locations of wind turbines. The results demonstrate that the algorithm performs better than genetic algorithm, in terms of maximum values of net annual value of wind power plants and computational burden.

scholarly journals On the effect of spatial dispersion of wind power plants on the wind energy capacity credit in Greece

2008 ◽  
Vol 3 (1) ◽  
pp. 015003 ◽  
Author(s):  
George Caralis ◽  
Yiannis Perivolaris ◽  
Konstantinos Rados ◽  
Arthouros Zervos
Keyword(s):  
Wind Energy ◽  
Wind Power ◽  
Power Plants ◽  
Spatial Dispersion ◽  
Energy Capacity ◽  
Wind Power Plants

scholarly journals ANALYSIS OF CLIMATIC PARAMETERS WHEN DESIGNING WIND POWER HIGH-RISE BUILDINGS

2021 ◽  
pp. 266-275
Author(s):  
Olga Krivenko
Keyword(s):  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Energy Resource ◽  
Climatic Parameters ◽  
Energy Potential ◽  
Technical Performance ◽  
High Rise ◽  
Wind Power Plants ◽  
Wind Potential

The relevance of the study is associated with the need to determine scientifically based principles for the design of wind-powered high-rise buildings. The article analyzes the main climatic parameters affecting the design of wind-powered high-rise buildings. While current research focuses mainly on the technical performance and savings of wind power plants (WPPs), modeling wind energy potential based on the analysis of climatic parameters allows you to optimize design solutions taking into account the influence of the environment. For various stages of the design of the integration of wind turbines into a high-rise building, it is important to take into account the dimensions of climate systems (macro, meso and micro levels), based on the laws operating within certain territorial boundaries. The article discusses the macroclimatic indicators that determine the total energy resource of wind in the region. The influence of the parameters of the mesoclimate on the wind potential has been determined, in accordance with the characteristics of the natural and anthropogenic environment (relief, the presence of forests, proximity to water bodies, urban development). The parameters that clarify the energy potential of the wind at the microclimatic level, taking into account the location of the wind turbine in the building, have been investigated. As a result of the analysis, a diagram of the structure of preliminary modeling of the energy wind potential at various climatic levels in the design of wind turbines in high-rise buildings has been determined. 

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.

Transient Stability Improvement of a System Connected with Wind Energy Generators

2017 ◽  
Vol 18 (5) ◽  
Author(s):  
S. Surender Reddy ◽  
Kishore Prathipati ◽  
Young Hwan Lho
Keyword(s):  
Control System ◽  
Power System ◽  
Wind Energy ◽  
Wind Power ◽  
Power Plants ◽  
Transient Stability ◽  
Induction Machines ◽  
Pitch Control ◽  
Wind Power Plants ◽  
The Stability

AbstractThis paper proposes a methodology to improve the transient stability (TS) of a system with wind energy generators. Induction machines are used widely as generators in the wind power plants. As these induction machines also have the stability problem like other synchronous machines, it is very important to analyze the TS of a system including the wind power plants. In this paper, the simulations and analysis of TS of power system including the induction generators during the short circuit fault conditions are carried out. The effect of pitch angle control on the stability of power system is analyzed. From the simulation results, it can be observed that the pitch control system which prevents the excess wind speed has the significant effect on the TS enhancement of the system. It can also be observed that the controller gain and time constant values have considerable effect on the pitch control system.

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