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Author: Kadam Deepak Prakash Publisher: Independent Author ISBN: 9781805254911 Category : Technology & Engineering Languages : en Pages : 0
Book Description
Windmills have been used for at least 3000 years, mainly for grinding grain or pumping water, while in sailing ships the wind has been an essential source of power for even longer. From as early as the thirteenth century, horizontal-axis windmills were an integral part of the rural economy and only fell into disuse with the advent of cheap fossil-fuelled engines and then the spread of rural electrification. To use wind energy efficiently and to concentrate the visual impact of modem wind turbines, the regions with a good wind climate, a tendency to group turbines in wind farms can be observed. These wind farms are connected to high voltage transmission grids and thus directly influence the dynamic behavior of the electrical power system [1]. Modern electricity-generating wind turbines now use three-bladed upwind rotors although two-bladed, and even one-bladed, rotors were used in earlier commercial turbines. Reducing the number of blades means that the rotor has to operate at a higher rotational speed in order to extract the wind energy from wind turbine. Initially these turbines were small, sometimes rated at only 30 kW, but were developed over the next 15 years to around 40-m diameter, 800-1,000 kW. However, by the mid-1990s it was becoming clear that for larger wind turbines it would be necessary to move away from this simple architecture and to use a number of the advanced concepts (e.g. variable-speed operation, pitch regulation, advanced materials) that had been investigated in the earlier research work. Large wind turbines are up to 100 m in diameter, rated at 3 to 4 MW are used. Most of the largest wind turbines now being installed operate at variable-speed, as the power electronic converters also allow much greater control of the output power and it is easier to comply with the requirements of the power system network operator.
Author: Kadam Deepak Prakash Publisher: Independent Author ISBN: 9781805254911 Category : Technology & Engineering Languages : en Pages : 0
Book Description
Windmills have been used for at least 3000 years, mainly for grinding grain or pumping water, while in sailing ships the wind has been an essential source of power for even longer. From as early as the thirteenth century, horizontal-axis windmills were an integral part of the rural economy and only fell into disuse with the advent of cheap fossil-fuelled engines and then the spread of rural electrification. To use wind energy efficiently and to concentrate the visual impact of modem wind turbines, the regions with a good wind climate, a tendency to group turbines in wind farms can be observed. These wind farms are connected to high voltage transmission grids and thus directly influence the dynamic behavior of the electrical power system [1]. Modern electricity-generating wind turbines now use three-bladed upwind rotors although two-bladed, and even one-bladed, rotors were used in earlier commercial turbines. Reducing the number of blades means that the rotor has to operate at a higher rotational speed in order to extract the wind energy from wind turbine. Initially these turbines were small, sometimes rated at only 30 kW, but were developed over the next 15 years to around 40-m diameter, 800-1,000 kW. However, by the mid-1990s it was becoming clear that for larger wind turbines it would be necessary to move away from this simple architecture and to use a number of the advanced concepts (e.g. variable-speed operation, pitch regulation, advanced materials) that had been investigated in the earlier research work. Large wind turbines are up to 100 m in diameter, rated at 3 to 4 MW are used. Most of the largest wind turbines now being installed operate at variable-speed, as the power electronic converters also allow much greater control of the output power and it is easier to comply with the requirements of the power system network operator.
Author: S. M. Muyeen Publisher: Springer Science & Business Media ISBN: 1848003161 Category : Technology & Engineering Languages : en Pages : 259
Book Description
“Stability Augmentation of a Grid-connected Wind Farm” introduces a comprehensive approach to stabilizing the power output from wind farms, covering both fixed and variable speed wind turbine generator systems. The book presents the different tools suitable for application in wind farms, together with modeling and control strategies. The book reports on output power and terminal voltage fluctuation minimization, using the integration of energy storage systems with power electronic converters. Transient stability enhancement of the power systems is also discussed. “Stability Augmentation of a Grid-connected Wind Farm” provides advanced tools with detailed modeling and controller design, including extensive simulation results.
Author: Mohd. Hasan Ali Publisher: CRC Press ISBN: 143985615X Category : Technology & Engineering Languages : en Pages : 287
Book Description
Unlike conventional power plants, wind plants emit no air pollutants or greenhouse gases—and wind energy is a free, renewable resource. However, the induction machines commonly used as wind generators have stability problems similar to the transient stability of synchronous machines. To minimize power, frequency, and voltage fluctuations caused by network faults or random wind speed variations, control mechanisms are necessary. Wind Energy Systems: Solutions for Power Quality and Stabilization clearly explains how to solve stability and power quality issues of wind generator systems. Covering fundamental concepts of wind energy conversion systems, the book discusses several means to enhance the transient stability of wind generator systems. It also explains the methodologies for minimizing fluctuations of power, frequency, and voltage. Topics covered include: An overview of wind energy and wind energy conversion systems Fundamentals of electric machines and power electronics Types of wind generator systems Challenges in integrating wind power into electricity grids Solutions for power quality problems Methods for improving transient stability during network faults Methods for minimizing power fluctuations of variable-speed wind generator systems This accessible book helps researchers and engineers understand the relative effectiveness of each method and select a suitable tool for wind generator stabilization. It also offers students an introduction to wind energy conversion systems, providing insights into important grid integration and stability issues.
Author: Thomas Ackermann Publisher: John Wiley & Sons ISBN: 111994208X Category : Technology & Engineering Languages : en Pages : 1132
Book Description
The second edition of the highly acclaimed Wind Power in Power Systems has been thoroughly revised and expanded to reflect the latest challenges associated with increasing wind power penetration levels. Since its first release, practical experiences with high wind power penetration levels have significantly increased. This book presents an overview of the lessons learned in integrating wind power into power systems and provides an outlook of the relevant issues and solutions to allow even higher wind power penetration levels. This includes the development of standard wind turbine simulation models. This extensive update has 23 brand new chapters in cutting-edge areas including offshore wind farms and storage options, performance validation and certification for grid codes, and the provision of reactive power and voltage control from wind power plants. Key features: Offers an international perspective on integrating a high penetration of wind power into the power system, from basic network interconnection to industry deregulation; Outlines the methodology and results of European and North American large-scale grid integration studies; Extensive practical experience from wind power and power system experts and transmission systems operators in Germany, Denmark, Spain, UK, Ireland, USA, China and New Zealand; Presents various wind turbine designs from the electrical perspective and models for their simulation, and discusses industry standards and world-wide grid codes, along with power quality issues; Considers concepts to increase penetration of wind power in power systems, from wind turbine, power plant and power system redesign to smart grid and storage solutions. Carefully edited for a highly coherent structure, this work remains an essential reference for power system engineers, transmission and distribution network operator and planner, wind turbine designers, wind project developers and wind energy consultants dealing with the integration of wind power into the distribution or transmission network. Up-to-date and comprehensive, it is also useful for graduate students, researchers, regulation authorities, and policy makers who work in the area of wind power and need to understand the relevant power system integration issues.
Author: Ali M. Eltamaly Publisher: Springer Nature ISBN: 3030643360 Category : Technology & Engineering Languages : en Pages : 323
Book Description
This edited book analyses and discusses the current issues of integration of wind energy systems in the power systems. It collects recent studies in the area, focusing on numerous issues including unbalanced grid voltages, low-voltage ride-through and voltage stability of the grid. It also explores the impact of the emerging technologies of wind turbines and power converters in the integration of wind power systems in power systems. This book utilizes the editors’ expertise in the energy sector to provide a comprehensive text that will be of interest to researchers, graduate students and industry professionals.
Author: Kenneth Eloghene Okedu Publisher: BoD – Books on Demand ISBN: 1789845904 Category : Technology & Engineering Languages : en Pages : 254
Book Description
This book provides a platform for scientists and engineers to comprehend the technologies of solar wind hybrid renewable energy systems and their applications. It describes the thermodynamic analysis of wind energy systems, and advanced monitoring, modeling, simulation, and control of wind turbines. Based on recent hybrid technologies considering wind and solar energy systems, this book also covers modeling, design, and optimization of wind solar energy systems in conjunction with grid-connected distribution energy management systems comprising wind photovoltaic (PV) models. In addition, solar thermochemical fuel generation topology and evaluation of PV wind hybrid energy for a small island are also included in this book. Since energy storage plays a vital role in renewable energy systems, another salient part of this book addresses the methodology for sizing hybrid battery-backed power generation systems in off-grid connected locations. Furthermore, the book proposes solutions for sustainable rural development via passive solar housing schemes, and the impacts of renewable energies in general, considering social, economic, and environmental factors. Because this book proposes solutions based on recent challenges in the area of hybrid renewable technologies, it is hoped that it will serve as a useful reference to readers who would like to be acquainted with new strategies of control and advanced technology regarding wind solar hybrid systems
Author: Kadam Deepak Prakash
Author: Kadam Deepak Prakash
Author: S. M. Muyeen
Author: Wessam Arafa Hafez
Author: Mohd. Hasan Ali
Author: Thomas Ackermann
Author: Ali M. Eltamaly
Author: Dr T. Himabindu
Author: Kenneth Eloghene Okedu
Author: Djamila Rekioua
Author: J.J. Gutierrez