Self Excitation and Harmonics in Wind Power Generation
Self Excitation and Harmonics in Wind Power Generation

Author:

Publisher:

Published: 2005

Total Pages: 10

ISBN-13:

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Traditional wind turbines are equipped with induction generators. Induction generators are preferred because they are inexpensive, rugged, and require very little maintenance. Unfortunately, induction generators require reactive power from the grid to operate. Because reactive power varies with the output power, the terminal voltage at the generator may become too low to compensate the induction generator. The interactions among the wind turbine, the power network, and the capacitor compensation, are important aspects of wind generation. In this paper, we will show the interactions among the induction generator, capacitor compensation, power system network, and magnetic saturations and examine the cause of resonance conditions and self-excitation.

Self Excitation and Harmonics in Wind Power Generation
Self Excitation and Harmonics in Wind Power Generation

Author:

Publisher:

Published: 2005

Total Pages: 10

ISBN-13:

DOWNLOAD EBOOK

Traditional wind turbines are equipped with induction generators. Induction generators are preferred because they are inexpensive, rugged, and require very little maintenance. Unfortunately, induction generators require reactive power from the grid to operate. Because reactive power varies with the output power, the terminal voltage at the generator may become too low to compensate the induction generator. The interactions among the wind turbine, the power network, and the capacitor compensation, are important aspects of wind generation. In this paper, we will show the interactions among the induction generator, capacitor compensation, power system network, and magnetic saturations and examine the cause of resonance conditions and self-excitation.

Power System Harmonics and Passive Filter Designs
Power System Harmonics and Passive Filter Designs

Author: J. C. Das

Publisher: John Wiley & Sons

Published: 2015-03-16

Total Pages: 872

ISBN-13: 1118861620

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As new technologies are created and advances are made with the ongoing research efforts, power system harmonics has become a subject of great interest. The author presents these nuances with real-life case studies, comprehensive models of power system components for harmonics, and EMTP simulations. Comprehensive coverage of power system harmonics Presents new harmonic mitigation technologies In-depth analysis of the effects of harmonics Foreword written by Dr. Jean Mahseredijan, world renowned authority on simulations of electromagnetic transients and harmonics

Development of Brushless Self-excited and Self-regulated Synchronous Generating System for Wind and Hydro Generators
Development of Brushless Self-excited and Self-regulated Synchronous Generating System for Wind and Hydro Generators

Author: Izzat, Likaa Fahmi Ahmed

Publisher: kassel university press GmbH

Published: 2013-01-01

Total Pages: 314

ISBN-13: 3862190188

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In this work, a developed model of brushless synchronous generator of wound rotor type is designed, analyzed by FEM, practically applied and investigated. A comparison of results with conventional machines is also performed. The presented machine can be applied for multi-pole wind/ hydro generators or double-poles diesel-engine generators. It is self-excited by residual magnetism and a connected capacitor. It is also self-regulated by making use of fluctuations at load or limited speed changes. The generated voltage may last at extended speed range by arranging a generating system with variable capacitance. By eliminating the permanent magnets or advanced manufacturing technology of rotor poles; and without using extra rotating/ external DC exciters, an efficient excitation field and an output of flat self-compensated compound characteristic are obtained. More, the feature of damper windings is determined. Concerning the fact of environmental diminishing of elements in materials of permanent magnets and D.C. Battery, the presented novel machine is hence a good alternative and more economic from generators, exist in the market. Beside, it is safer and highly recommended for power stability when connected to the grid.

Electricity Generation Using Wind Power (Second Edition)
Electricity Generation Using Wind Power (Second Edition)

Author: William Shepherd

Publisher: World Scientific

Published: 2017-01-05

Total Pages: 298

ISBN-13: 9813148675

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Is wind power the answer to our energy supply problems? Is there enough wind for everyone? Is offshore generation better than onshore generation? Can a roof-mounted wind turbine generate enough electricity to supply a typical domestic household?Electricity Generation Using Wind Power (2nd Edition) answers these pressing questions through its detailed coverage of the different types of electrical generator machines used, as well as the power electronic converter technologies and control principles employed. Also covered is the integration of wind farms into established electricity grid systems, plus environmental and economic aspects of wind generation.Written for technically minded readers, especially electrical engineers concerned with the possible use of wind power for generating electricity, it incorporates some global meteorological and geographical features of wind supply plus a survey of past and present wind turbines. Included is a technical assessment of the choice of turbine sites. The principles and analysis of wind power conversion, transmission and efficiency evaluation are described.This book includes worked numerical examples in some chapters, plus end of chapter problems and review questions, with answers. As a textbook it is pitched at the level of final year undergraduate engineering study but may also be useful as a textbook or reference for wider technical studies.

Wind Energy
Wind Energy

Author: Vaughn Nelson

Publisher: CRC Press

Published: 2013-12-12

Total Pages: 334

ISBN-13: 1466581611

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As the demand for energy increases, and fossil fuels continue to decrease, Wind Energy: Renewable Energy and the Environment, Second Edition considers the viability of wind as an alternative renewable energy source. This book examines the wind industry from its start in the 1970s until now, and introduces all aspects of wind energy. The phenomenal growth of wind power for utilities is covered along with applications such as wind-diesel, village power, telecommunications, and street lighting.. It covers the characteristics of wind, such as shear, power potential, turbulence, wind resource, wind turbine types, and designs and performance. The text discusses the measurement and siting of individual wind turbines, and considers the development and economic impact of wind farms. What’s New in the Second Edition: Expands the section on distributed wind Adds new sections on global warming, community wind, and storage Illustrates the need for a shift to renewable energy through discussions on energy use and the order of magnitude estimates for the lifetime of fossil fuels Discusses the interconnection of wind turbines to utility grids, regulations on installation and operation, and environmental concerns This book provides material on statistics, installation, types, and energy data, as well as new information, applications, and updates on the wind industry. It serves as a resource for practicing professionals in the wind energy industry, and can be used by undergraduate and graduate students in energy engineering/environmental engineering/wind technology.

Smart Grids
Smart Grids

Author: A B M Shawkat Ali

Publisher: Springer Science & Business Media

Published: 2013-07-16

Total Pages: 233

ISBN-13: 1447152107

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A Smart Grid delivers renewable energy as a main source of electricity from producers to consumers using two-way monitoring through Smart Meter technology that can remotely control consumer electricity use. This can help to storage excess energy; reduce costs, increase reliability and transparency, and make processes more efficiently. Smart Grids: Opportunities, Developments, and Trends discusses advances in Smart Grid in today’s dynamic and rapid growing global economical and technological environments. Current development in the field are systematically explored with an introduction, detailed discussion and an experimental demonstration. Each chapter also includes the future scope and ongoing research for each topic. Smart Grids: Opportunities, Developments, and Trends provides up to date knowledge, research results, and innovations in Smart Grids spanning design, implementation, analysis and evaluation of Smart Grid solutions to the challenging problems in all areas of power industry. Providing a solid foundation for graduate and postgraduate students, this thorough approach also makes Smart Grids: Opportunities, Developments, and Trends a useful resource and hand book for researchers and practitioners in Smart Grid research. It can also act as a guide to Smart Grids for industry professionals and engineers from different fields working with Smart Grids.

Integration of Large Scale Wind Energy with Electrical Power Systems in China
Integration of Large Scale Wind Energy with Electrical Power Systems in China

Author: Zongxiang Lu

Publisher: John Wiley & Sons

Published: 2018-03-28

Total Pages: 492

ISBN-13: 1118910079

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An in-depth examination of large scale wind projects and electricity production in China Presents the challenges of electrical power system planning, design, operation and control carried out by large scale wind power, from the Chinese perspective Focuses on the integration issue of large scale wind power to the bulk power system, probing the interaction between wind power and bulk power systems Wind power development is a burgeoning area of study in developing countries, with much interest in offshore wind farms and several big projects under development English translation of the Chinese language original which won the "Fourth China Outstanding Publication Award nomination" in March 2013

Renewable Energy in the Service of Mankind Vol II
Renewable Energy in the Service of Mankind Vol II

Author: Ali Sayigh

Publisher: Springer

Published: 2015-12-29

Total Pages: 988

ISBN-13: 3319182153

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This book provides insights on a broad spectrum of renewable and sustainable energy technologies from the world’s leading experts. It highlights the latest achievements in policy, research and applications, keeping readers up-to-date on progress in this rapidly advancing field. Detailed studies of technological breakthroughs and optimizations are contextualized with in-depth examinations of experimental and industrial installations, connecting lab innovations to success in the field. The volume contains selected papers presented at technical and plenary sessions at the World Renewable Energy Congress, the world's premier conference on renewable energy and sustainable development. Held every two years, the Congress provides an international forum that attracts hundreds of delegates from more than 60 countries.

Wind Energy Systems and Applications
Wind Energy Systems and Applications

Author: D.P Kothari

Publisher: ALPHA SCIENCE INTERNATIONAL LIMITED

Published: 2013-05-23

Total Pages: 286

ISBN-13: 1783320966

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WIND ENERGY SYSTEMS AND APPLICATIONS is an increasingly important means of generating electricity. WES is a clean, cost-effective and renewable energy source. It is a well-developed technology and suitable for generation of electricity in remote areas. This book presents a comprehensive account of technology, case studies and international status.