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Condition: New. 1st edition NO-PA16APR2015-KAP.
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Advanced Controls for Wind Driven Doubly Fed Induction Generators
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Advanced Controls for Wind Driven Doubly Fed Induction Generators
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Paperback. Condition: Brand New. 188 pages. 9.18x6.12x9.21 inches. In Stock.
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - Master's Thesis from the year 2013 in the subject Engineering - Power Engineering, grade: none, , course: Electrical engineering (Renewable energy), language: English, abstract: Wind electrical power systems are recently getting lot of attention, becausethey are cost competitive, environmental clean and safe renewable powersource, as compared with fossil fuel and nuclear power generation. A specialtype of induction generator, called a doubly fed induction generator (DFIG),is used extensively for high-power wind applications. They are used moreand more in wind turbine applications due to ease controllability, highenergy efficiency and improved power quality.This thesis aims to develop a method of a field orientation scheme forcontrol both the active and reactive powers of a DFIG driven by a windturbine.The proposed control system consists of a wind turbine that drives aDFIG connected to the utility grid through AC-DC-AC link. The maincontrol objective is to regulate the dc link voltage for operation at maximumavailable wind power.This is achieved by controlling the and axescomponents of voltages and currents for both rotor side and line sideconverters using PI controllers. The complete dynamic model of theproposed system is described in detail. Computer simulations have beencarried out in order to validate the effectiveness of the proposed systemduring the variation of wind speed. The results prove that , better overallperformances are achieved, quick recover from wind speed disturbances inaddition to good tracking ability.Generally, any abnormalities associated with grid asymmetrical faults aregoing to affect the system performance considerably. During grid faults,unbalanced currents cause negative effects like overheating problems andmechanical stress due to high torque pulsations that can damage the rotor shaft, gearbox or blade assembly. Therefore, the dynamic model of theDFIG, driven by a wind turbine during grid faults has been analyzed anddeveloped using the method of symmetrical components. The dynamicperformance of the DFIG during unbalanced grid conditions is analyzed anddescribed in detail using digital simulations.A novel fault ride-through (FRT) capability is proposed (i.e. the ability ofthe power system to remain connected to the grid during faults) with suitablecontrol strategy in this thesis. In this scheme, the input mechanical energy ofthe wind turbine during grid faults is stored and utilized at the moment offault clearance, instead of being dissipated in the resistors of the crowbarcircuit as in the existing FRT schemes. [.].
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Control of a Wind Driven Doubly Fed Induction Generator During Grid Faults
Language: English
Published by GRIN Verlag Feb 2013, 2013
ISBN 10: 3656368384 ISBN 13: 9783656368380
Seller: buchversandmimpf2000, Emtmannsberg, BAYE, Germany
Seller rating 5 out of 5 stars
Taschenbuch. Condition: Neu. Neuware -Master's Thesis from the year 2013 in the subject Engineering - Power Engineering, grade: none, , course: Electrical engineering (Renewable energy), language: English, abstract: Wind electrical power systems are recently getting lot of attention, becausethey are cost competitive, environmental clean and safe renewable powersource, as compared with fossil fuel and nuclear power generation. A specialtype of induction generator, called a doubly fed induction generator (DFIG)is used extensively for high-power wind applications. They are used moreand more in wind turbine applications due to ease controllability, highenergy efficiency and improved power quality.This thesis aims to develop a method of a field orientation scheme forcontrol both the active and reactive powers of a DFIG driven by a windturbine.The proposed control system consists of a wind turbine that drives aDFIG connected to the utility grid through AC-DC-AC link. The maincontrol objective is to regulate the dc link voltage for operation at maximumavailable wind power.This is achieved by controlling the and axescomponents of voltages and currents for both rotor side and line sideconverters using PI controllers. The complete dynamic model of theproposed system is described in detail. Computer simulations have beencarried out in order to validate the effectiveness of the proposed systemduring the variation of wind speed. The results prove that , better overallperformances are achieved, quick recover from wind speed disturbances inaddition to good tracking ability.Generally, any abnormalities associated with grid asymmetrical faults aregoing to affect the system performance considerably. During grid faultsunbalanced currents cause negative effects like overheating problems andmechanical stress due to high torque pulsations that can damage the rotor shaft, gearbox or blade assembly. Therefore, the dynamic model of theDFIG, driven by a wind turbine during grid faults has been analyzed anddeveloped using the method of symmetrical components. The dynamicperformance of the DFIG during unbalanced grid conditions is analyzed anddescribed in detail using digital simulations.A novel fault ride-through (FRT) capability is proposed (i.e. the ability ofthe power system to remain connected to the grid during faults) with suitablecontrol strategy in this thesis. In this scheme, the input mechanical energy ofthe wind turbine during grid faults is stored and utilized at the moment offault clearance, instead of being dissipated in the resistors of the crowbarcircuit as in the existing FRT schemes. [.]Books on Demand GmbH, Überseering 33, 22297 Hamburg 140 pp. Englisch.
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Taschenbuch. Condition: Neu. Control of a Wind Driven Doubly Fed Induction Generator During Grid Faults | Mahmoud Mossa | Taschenbuch | 140 S. | Englisch | 2013 | GRIN Verlag | EAN 9783656368380 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.
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Energy Storage Devices
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Advances in Solar Photovoltaic Energy Systems
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Soft Computing in Renewable Energy Technologies (Advances in Digital Technologies for Smart Applications)
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Soft Computing in Renewable Energy Technologies
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Soft Computing in Renewable Energy Technologies
Language: English
Published by Taylor & Francis Ltd, 2024
ISBN 10: 103261191X ISBN 13: 9781032611914
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Soft Computing in Renewable Energy Technologies
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Condition: New. 1st edition NO-PA16APR2015-KAP.
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