Relevant bibliographies by topics / Wind energy conversion system (WECS) / Dissertations / Theses
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Dissertations / Theses on the topic 'Wind energy conversion system (WECS)'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

GuimarÃes, JÃssica Santos. "Wind energy conversion system connected to the grid." Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16813.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>Este trabalho apresenta o desenvolvimento de um sistema de conversÃo de energia eÃlica (WECS - Wind Energy Conversion System) com gerador sÃncrono de imà permanente (PMSG - Permanent Magnet Synchronous Generator) operando com velocidade variÃvel. O circuito de processamento de energia à dividido em dois estÃgios. No estÃgio AC-DC, uma topologia boost bridgeless trifÃsica unidirecional absorve a energia fornecida pelo gerador e injeta no link DC. Neste conversor, a tÃcnica de autocontrole permite a extraÃÃo de corrente com baixa t
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Dalala', Zakariya Mahmoud. "Design and Analysis of a Small-Scale Wind Energy Conversion System." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/51846.

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This dissertation aims to present detailed analysis of the small scale wind energy conversion system (WECS) design and implementation. The dissertation will focus on implementing a hardware prototype to be used for testing different control strategies applied to small scale WECSs. Novel control algorithms will be proposed to the WECS and will be verified experimentally in details. The wind turbine aerodynamics are presented and mathematical modeling is derived which is used then to build wind simulator using motor generator (MG) set. The motor is torque controlled based on the turbine mathem
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3

Yunus, A. M. Shiddiq. "Application of SMES Unit to improve the performance of doubly fed induction generator based WECS." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/1450.

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Due to the rising demand of energy over several decades, conventional energy resources have been continuously and drastically explored all around the world. As a result, global warming is inevitable due to the massive exhaust of CO2 into the atmosphere from the conventional energy sources. This global issue has become a high concern of industrial countries who are trying to reduce their emission production by increasing the utilization of renewable energies such as wind energy. Wind energy has become very attractive since the revolution of power electronics technology, which can be equipped wi
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4

Mondal, Abrez. "A PMSG-Based Wind Energy Conversion System Assisted by Photovoltaic Power." Thesis, North Dakota State University, 2012. https://hdl.handle.net/10365/26796.

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This work discusses a hybrid power conversion scheme consisting of a permanent magnet synchronous generator (PMSG)-based wind energy system and photovoltaic panels. The two energy sources are integrated with a battery to store extra photovoltaic energy during the day and to meet any additional power requirement in the absence of sunlight. The PV panel is interfaced to the battery through a SEPIC converter for maximum power point tracking. The wind energy from the PMSG is supplied to the battery through a boost converter which regulates the output. The total power obtained from the hybrid syste
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5

McCartney, Shauna. "The simulation and control of a grid-connected wind energy conversion system." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4680.

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With the rising cost of petroleum, concerns about exhausting the fossil fuels we depend on for energy, and the subsequent impacts that the burning of these types of fuels have on the environment, countries around the world are paying close attention to the development of renewable types of energy. Consequently, researchers have been trying to develop ways to take advantage of different types of clean and renewable energy sources. Wind energy production, in particular, has been growing at an increasingly rapid rate, and will continue to do so in the future. In fact, it has become an integral pa
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6

Fan, Shixiong. "Current source DC/DC converter based multi-terminal DC wind energy conversion system." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=17007.

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Wind power energy conversion is growing rapidly in the world. There are two main wind farm types, namely ac grid-based and dc grid-based wind farms. The dc grid-based approach reduces the size and weight of the magnetic components and cables. In the dc system, the step-up dc/dc converter is the key component when interfacing the wind turbine to the ac grid, via its low/medium voltage generator. This thesis focuses on the control and design of a wind energy conversion system based on dc/dc current source converters. An optimized One-Power-Point method for maximum power tracking is proposed. It
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7

Hossain, Md Liton. "Control of a Multilevel Inverter for Wind Energy Conversion System with Energy Storage and Condition Monitoring Options." Thesis, Curtin University, 2020. http://hdl.handle.net/20.500.11937/81986.

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A generalized three-phase cascaded multilevel inverter (CMLI) is proposed which requires four non-isolated series-connected dc-link capacitors only. A simplified space vector pulse width modulation (SVPWM) controller is proposed to control the three-phase CMLI, to balance and minimize the ripples of dc-link voltages. In addition, algorithms are proposed to monitor the condition of dc-link capacitors and switching devices in real-time remotely over internet. Three-phase CMLI, simplified SVPWM, and algorithms have been tested through simulation and experiment.
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8

Alharbi, Yasser Mohammed R. "Application of Unified Power Flow Controller to Improve the Performance of Wind Energy Conversion System." Thesis, Curtin University, 2016. http://hdl.handle.net/20.500.11937/1426.

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This research introduces the unified power flow controller (UPFC) as a means to improve the overall performance of wind energy conversion system (WECS) through the development of an appropriate control algorithm. Also, application of the proposed UPFC control algorithm has been extended in this research to overcome some problems associated with the internal faults associated with WECS- voltage source converter (VSC), such as miss-fire, fire-through and dc-link faults.
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9

Kim, Hyong Sik. "Brushless Doubly-Fed Reluctance Generator under Voltage Dips for Wind Energy Conversion System: Modelling and Simulation." Thesis, The University of Sydney, 2013. http://hdl.handle.net/2123/12482.

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Under current trends in the wind energy market, the Brushless Doubly-Fed Reluctance Generator (BDFRG) is regarded as one of the generators that could replace the Doubly-Fed Induction Generator (DFIG), which dominates the current wind energy market. In various literature, BDFRG is proposed to possess advantages over DFIG under current trends, such as the use of offshore wind and the stricter grid codes, while possessing the advantages of DFIG. Thus, some aspects of BDFRG have been researched; however, other aspects have not yet been investigated, including its behaviour under voltage dips, whic
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10

Kendeck, Clement Ndjewel. "Fault ride-through capability of multi-pole permanent magnet synchronous generator for wind energy conversion system." Thesis, Cape Peninsula University of Technology, 2019. http://hdl.handle.net/20.500.11838/3060.

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Thesis (MEng (Electrical Engineering))--Cape Peninsula University of Technology, 2019<br>Wind has become one of the renewable energy technologies with the fastest rate of growth. Consequently, global wind power generating capacity is also experiencing a tremendous increase. This tendency is expected to carry on as time goes by, with the continuously growing energy demand, the rise of fossil fuels costs combined to their scarcity, and most importantly pollution and climate change concerns. However, as the penetration level increases, instabilities in the power system are also more likely to occ
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11

Liang, Jiaqi. "Wind energy and power system interconnection, control, and operation for high penetration of wind power." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/47570.

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High penetration of wind energy requires innovations in different areas of power engineering. Methods for improving wind energy and power system interconnection, control, and operation are proposed in this dissertation. A feed-forward transient compensation control scheme is proposed to enhance the low-voltage ride-through capability of wind turbines equipped with doubly fed induction generators. Stator-voltage transient compensation terms are introduced to suppress rotor-current overshoots and torque ripples during grid faults. A dynamic stochastic optimal power flow control scheme is propose
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12

Stander, Johan Nico. "The specification of a small commercial wind energy conversion system for the South African Antarctic Research Base SANAE IV." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/1583.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--Stellenbosch University, 2008.<br>The sustainability and economy of the current South African National Antarctic Expedition IV (SANAE IV) base diesel-electric power system are threatened by the current high fuel prices and the environmental pollution reduction obligations. This thesis presents the potential technical, environmental and economical challenges associated with the integration of small wind energy conversion system (WECS) with the current SANAE IV diesel fuelled power system. Criteria derived from technical, environmen
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13

Agabus, Hannes. "Large-scale integration of wind energy into the power system considering the uncertainty information = Elektrituulikute integreerimine energiasüsteemi arvestades informatsiooni mittetäielikkust /." Tallinn : TUT Press, 2009. http://digi.lib.ttu.ee/i/?446.

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14

Jones, Gavin Wesley. "Distribution system operation and planning in the presence of distributed generation technology." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.umr.edu/thesis/pdf/Jones_09007dcc803b193d.pdf.

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Thesis (M.S.)--University of Missouri--Rolla, 2007.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed November 16, 2007) Includes bibliographical references (p. 71-74).
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15

Waheed, Amna. "To Electrify a Flood Affected Village in Sajawal, Pakistan by Utilizing the Available Renewable Energy Resources." Thesis, KTH, Kraft- och värmeteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149865.

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Pakistan, though being one of the most rich in renewable energy resources, faces serious energy crises and has a shortfall of about 6 GW electric energy. Most of the resources are untapped until today. The fuel for electricity production is being imported and is of high cost. The government is trying to fulfill the energy requirements of the industries and urban areas where rural areas are at the lowest priority. Pakistan was hit by flood disaster in 2010. There are number of organizations, governmental and private, that are trying to provide shelters and basic necessities to the flood affecti
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16

Yang, Peter Yajun. "Modeling and simulating double-output induction generator at sub-synchronous and super-synchronous speeds for wind energy conversion system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0031/MQ65696.pdf.

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17

Khamaira, Mahmoud Yousef. "A New Converter Station Topology to Improve the Overall Performance of a Doubly Fed Induction Generator-Based Wind Energy Conversion System." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/2397.

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This thesis presents a reliable and cost effective technique that calls for reconfiguration of the existing converters of a typical Doubly Fed Induction Generator to include a coil of low internal resistance. A coil within the DC link is the only hardware component required to implement this technique. With a proper control scheme, activated during fault conditions, this coil can provide the same degree of performance as a superconducting magnetic energy storage unit during fault conditions.
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18

Ekren, Orhan Özerdem Barış. "Optimization of a hybrid combination of a photovoltaic syste and a wind energy conversion system: İzmir Institute of technology campus area case/." [s.l.]: [s.n.], 2003. http://library.iyte.edu.tr/tezler/master/enerjimuh/T000279.rar.

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19

Jayam, Prabhakar Aditya. "Application of STATCOM for improved dynamic performance of wind farms in a power grid." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/Jayam_Prabhakar_09007dcc804f7428.pdf.

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Thesis (M.S.)--Missouri University of Science and Technology, 2008.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed May 12, 2008) Includes bibliographical references (p. 64-66).
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20

Wang, Tian Xiang. "Study of the integration method on the control of wind power system." Thesis, University of Macau, 2009. http://umaclib3.umac.mo/record=b2144085.

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21

Bouwer, Pieter. "Modelling, design and implementation of a small-scale, position sensorless, variable speed wind energy conversion system incorporating DTC-SVM of a PMSG drive with RLC filter." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80242.

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Thesis (MScEng)--Stellenbosch University, 2013.<br>Wind energy has proven to be a viable source of clean energy, and the worldwide demand is growing rapidly. Variable speed topologies, with synchronous generators and full-scale converters, are becoming more popular, and the e ective control of these systems is a current trend in wind energy research. The purpose of this study is the modelling, design, simulation and implementation of a small-scale, variable speed wind energy conversion system, incorporating the position sensorless direct torque control with space vector modulation, of a
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22

Liu, Xinyi. "Contribution to adaptative sliding mode, fault tolerant control and control allocation of wind turbine system." Thesis, Belfort-Montbéliard, 2016. http://www.theses.fr/2016BELF0295/document.

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Les principaux défis pour le déploiement de systèmes de conversion de l'énergie éolienne est de maximiser la puissance électrique produite, malgré les variations des conditions météorologiques, tout en minimisant les coûts de fabrication et de maintenance du système. L'efficacité de la turbine éolienne est fortement dépendante des perturbations de l'environnement et des paramètres variables du système, tels que la vitesse du vent et l'angle de tangage. Les incertitudes sur le système sont difficiles à modéliser avec précision alors qu'ils affectent sa stabilité.Afin d'assurer un état de foncti
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23

Al-Quteimat, Alaa [Verfasser], Uwe [Akademischer Betreuer] Schäfer, Uwe [Gutachter] Schäfer, Sibylle [Gutachter] Dieckerhoff, and Saleh [Gutachter] Al-Jufout. "Control layout of doubly fed induction generator with respect to low voltage ride through for wind energy conversion system / Alaa Al-Quteimat ; Gutachter: Uwe Schäfer, Sibylle Dieckerhoff, Saleh Al-Jufout ; Betreuer: Uwe Schäfer." Berlin : Technische Universität Berlin, 2018. http://d-nb.info/1168324203/34.

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24

Gaptia, Maï Moussa Lawan. "Gestion optimale d'énergie électrique à partir des sources d'énergies renouvelables dédiées aux sites isolés Power control for decentralized energy production system based on the renewable energies — using battery to compensate the wind/load/PV power fluctuations Three level Neutral-Point-Clamped Inverter Control Strategy using SVPWM for Multi-Source System Applications Wind turbine and Batteries with Variable Speed Diesel Generator for Micro-grid Applications." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMLH28.

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Les travaux de thèse s’inscrivent dans les problématiques des travaux de recherche de l’équipe thématique : Maitrise des Energies Renouvelables et systèmes de Stockage (MERS) du laboratoire GREAH-EA3220. Ils englobent le dimensionnement des éléments constitutifs du système et la gestion optimale de l’énergie électrique pour un système hybride (Diesel à vitesse variable, Eolien, PV et Batteries) dédié aux sites isolés. Les sources de production d'énergie alimentent des charges par le biais de convertisseurs multi-niveaux d’électronique de puissance. Le groupe électrogène comportant un moteur di
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25

BONO, ANDREA. "Criticità nelle esigenze e nelle offerte energetiche: il ruolo rilevante della progettazione e della gestione ottimizzata delle macchine a fluido e dei sistemi per la conversione di energia. Aspetti applicativi nella piccola fornitura di energia e nella propulsione navale." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1046981.

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The present work deals with environmental sustainability and specific engineering solutions able to cope with such a global issue. Attention is focused on renewable energy and innovative fuels as effective strategies in contributing valuable techniques in order to face the need of mitigating environmental problems concerning climate change and global warming. The research study is targeted on optimized design and management of fluid machinery, and extensively on optimized energy conversion systems, conceptualized in accordance with current standards and regulations, governing the reference se
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Shahbazi, Mahmoud. "Contribution à l'étude des convertisseurs statiques AC-DC-AC tolérants aux défauts." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0074/document.

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Les convertisseurs statiques triphasés AC/DC/AC à structure tension sont largement utilisés dans de nombreuses applications de puissance. La continuité de service de ces systèmes ainsi que leur sécurité, leur fiabilité et leurs performances sont aujourd'hui des préoccupations majeures de ce domaine lié à l'énergie. En effet, la défaillance du convertisseur peut conduire à la perte totale ou partielle du contrôle des courants de phase et peut donc provoquer de graves dysfonctionnements du système, voire son arrêt complet. Afin d'empêcher la propagation du défaut aux autres composants du système
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27

Shahbazi, Mahmoud. "Contribution à l'étude des convertisseurs statiques AC-DC-AC tolérants aux défauts." Electronic Thesis or Diss., Université de Lorraine, 2012. http://www.theses.fr/2012LORR0074.

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Les convertisseurs statiques triphasés AC/DC/AC à structure tension sont largement utilisés dans de nombreuses applications de puissance. La continuité de service de ces systèmes ainsi que leur sécurité, leur fiabilité et leurs performances sont aujourd'hui des préoccupations majeures de ce domaine lié à l'énergie. En effet, la défaillance du convertisseur peut conduire à la perte totale ou partielle du contrôle des courants de phase et peut donc provoquer de graves dysfonctionnements du système, voire son arrêt complet. Afin d'empêcher la propagation du défaut aux autres composants du système
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28

Croci, Lila. "Gestion de l'énergie dans un système multi-sources photovoltaïque et éolien avec stockage hybride batteries/supercondensateurs." Phd thesis, Université de Poitiers, 2013. http://tel.archives-ouvertes.fr/tel-00943296.

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Ce mémoire présente le travail de recherche effectué pour la conception d'une stratégie de commande originale, destinée aux systèmes de puissance hybrides en sites isolés. Le système considéré, voué à l'alimentation électrique d'une habitation, comprend deux sources, un groupe de panneaux photovoltaïques et une petite éolienne, et deux types de stockage, un banc de batteries lithium-ion et un de supercondensateurs. Face au problème de gestion de l'énergie dans un système hybride, et aux enjeux de maximisation de sa puissance produite, nous proposons de développer une stratégie de commande basé
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29

Hasmat. "Some aspects of condition monitoring of transformer and wind energy conversion system (WECS)." Thesis, 2018. http://eprint.iitd.ac.in:80//handle/2074/7982.

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Δημητρακάκης, Στέφανος. "Ανάπτυξη δυναμικού μοντέλου και έλεγχος ανεμογεννήτριας συνδεδεμένης στο δίκτυο και σε αυτόνομη λειτουργία εφοδιασμένη με διάταξη αποθήκευσης ενέργειας". Thesis, 2014. http://hdl.handle.net/10889/7831.

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Η παρούσα διπλωματική εργασία πραγματεύεται τη μελέτη και τη μοντελοποίηση ενός αιολικού συστήματος παραγωγής ηλεκτρικής ενέργειας βασισμένο σε σύγχρονη γεννήτρια μόνιμου μαγνήτη (PMSG). Ειδικότερα, παρουσιάζονται και αναλύονται όλα τα τμήματα που αποτελούν το αιολικό σύστημα καθώς και οι λογικές ελέγχου που ακολουθήθηκαν για την αποτελεσματική λειτουργία του. Επιπλέον, μελετάται και μοντελοποιείται μια διάταξη αποθήκευσης ενέργειας από την οποία πλαισιώνεται το αιολικό σύστημα κατά την αυτόνομη λειτουργία του. Τέλος, παρουσιάζονται και σχολιάζονται τα αποτελέσματα της προσομοίωσης της λειτουρ
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31

Lu, Hsiang-Chun, and 路翔鈞. "Development of Wind Energy Conversion System Using Wind Turbine Simulator." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/63935490848314566362.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>97<br>This thesis presents the development of wind energy conversion system (WECS) using a wind turbine simulator. Generally, wind tunnel test is essential in the evaluation of the WECS. However, such a field test inevitably increase time and cost in the developmental process. Therefore, the proposed wind turbine simulator system is constructed to emulate the actual wind turbine characteristics. Following that, a laboratory prototype of the small scaled WECS is built. Experimental results confirm that the proposed WECS can be operated in the stand-alone loading mo
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Tseng, Shing-Bin, and 曾祥賓. "Study of DSP-Based Wind Power Energy Conversion System." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/46987778163921958150.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>91<br>The aim of this thesis is to research and study a wind power energy conversion system feeding an isolated load. Both output voltage and frequency of an autonomous wind generator would be inherently affected by random wind speed and the connected loads, and this thesis proposes an AC-DC-AC power converter to minimize the problems using the integration of both DSP and PWM control. Both induction generator and synchronous generator are employed as two wind power generators in order to observe and compare the characteristics and performance of the proposed energ
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Su, Yi Li, and 蘇益立. "A Realization of a Grid-connected Wind Energy Conversion System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/41485223242472252474.

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碩士<br>長庚大學<br>電機工程學系<br>98<br>This thesis presents a DSP microcontroller-based grid-connected wind energy conversion system (WECS). The hardware realization of the WECS consists of a 1.5kW wind driven permanent-magnet synchronous generator, (PMSG), a PWM rectifier, a push-pull converter and a grid-connected PWM inverter. The PWM rectifier, serving as a speed governor, is capable of modulating the electrical power of the PMSG such that the wind turbine (WT) can operate at optimal rotating speed and output power. The push-pull converter is mandatory to raise the PWM rectifier output voltage need
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34

Wang, Chien-Pin, and 王建斌. "Maximum Power Point Tracking Methods for Wind Energy Conversion System." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/27491473162595328286.

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碩士<br>中原大學<br>電機工程研究所<br>93<br>The wind-turbine generation system (WTGS) exhibits a nonlinear characteristic and thus its maximum power point varies with changing atmospheric conditions. In order to have the WTGS operate at maximum power points under different wind speeds, the thesis proposes two maximum-power-point-tracking (MPPT) control methods of the slope-comparing (SC) and the power-difference-product (PDP) algorithms to be used in the WTGS. In the thesis, load models of the WTGS under different wind speeds are first built up for design of control rules and feasibility studies of the pro
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Bhugra, N. "Model Predictive Control Based Wind-Solar Hybrid Energy Conversion System." Thesis, 2013. http://raiith.iith.ac.in/720/1/EE11M1008.pdf.

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Presently a lot of work is being carried in the field of distributed renewable generation. Many distributed generation systems are being designed and connected to the electric grid. At the time when the conventional sources of energy such as coal, oil, gas etc. are fast disappearing, a study of distributed renewable generation systems becomes very important.
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Rahimian, Mina Mashhadi. "Broken Bar Detection in Synchronous Machines Based Wind Energy Conversion System." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-9910.

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Electrical machines are subject to different types of failures. Early detection of the incipient faults and fast maintenance may prevent costly consequences. Fault diagnosis of wind turbine is especially important because they are situated at extremely high towers and therefore inaccessible. For offshore plants, bad weather can prevent any repair actions for several weeks. In some of the new wind turbines synchronous generators are used and directly connected to the grid without the need of power converters. Despite intensive research efforts directed at rotor fault diagnosis in induct
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Jhang, Jhe-Wei, and 張哲瑋. "Design and Implementation of a Stand-Alone Wind Energy Conversion System." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/68191002027936509090.

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碩士<br>國立雲林科技大學<br>電機工程系碩士班<br>99<br>This thesis presents a stand alone wind energy conversion system with energy storage system. The power circuits of the system are composed of the dc/dc interleaved voltage-doubler boost converter, dc/dc bi-directional buck-boost converter and the switched voltage source inverter with zero neutral point potential. The small wind generator is the main power source of the system, and the energy storage system is used for energy storage and power compensation to recover the natural irregularity of the wind energy. In order to keep wind generator produce the maxi
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Tu, Chia-cheng, and 涂家政. "Design and Implementation of Power Converters for Wind Energy Conversion System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/98368992775080277811.

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碩士<br>國立雲林科技大學<br>電機工程系碩士班<br>97<br>This thesis presents the design and implementation of power converters for wind conversion systems. The power converter can not only transfer the power from wind generator, but also improve stability and safety of the system. The proposed system consists of a permanent magnet synchronous generator, a dc/dc boost converter, a bi-directional dc/dc converter and a full-bridge inverter. The wind generator is the main power source of the system, and the battery is used for energy storage and power compensation to recover the natural irregularity of the wind power
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Chen, Kan-Sheng, and 陳侃聲. "Optimal Capacitor and Wind Energy Conversion System Planning of Distribution Feeders." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/88780822898203342390.

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碩士<br>南台科技大學<br>電機工程系<br>95<br>The objective of this thesis is to derive an optimal location and operating strategy of capacitor banks and wind energy conversion systems (WECS) installed at the distribution feeder to reduce system power loss. The objective function is formulated by including feeder peak power loss, daily energy loss and capacitor installation cost. In addition, the voltage profiles of the feeder buses and the power factors of the WECS are considered as constraints. The immune algorithm (IA) is applied to solve the optimization problem by representing the objective function and
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Khan, Muhammad Shahid. "Supervisory Hybrid Control of a Wind Energy Conversion and Battery Storage System." Thesis, 2008. http://hdl.handle.net/1807/11218.

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This thesis presents a supervisory hybrid controller for the automatic operation and control of a wind energy conversion and battery storage system. The supervisory hybrid control scheme is based on a radically different approach of modeling and control design, proposed for the subject wind energy conversion and battery storage system. The wind energy conversion unit is composed of a 360kW horizontal axis wind turbine mechanically coupled to an induction generator through a gearbox. The assembly is electrically interfaced to the dc bus through a thyristor-controlled rectifier to enable variabl
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Wei-ChihLiang and 梁威志. "A Three-Phase Wind Energy Conversion System with Novel Adaptive MPPT Algorithm." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/74987252756171072852.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>100<br>This thesis aims to develop a novel adaptive maximum power point tracking (MPPT) algorithm that is applied to the permanent magnet synchronous generator (PMSG) and back-to-back topology based three-phase wind energy conversion system (WECS). Topologically speaking, the MPPT algorithm can be classified into two types. One is to track the optimal power point by perturbing the electric power; the other is to reach the optimal power output by tracing the turbine power curve. Each approach has its pros and cons and they are usually the complement from one to the
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Chang, YuChong, and 張育鐘. "An Implementation of Energy Conversion System by Small-Scale Hybrid Wind-Turbine." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/46559612442377121984.

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碩士<br>明志科技大學<br>電機工程研究所<br>101<br>A hybrid wind-turbine generation system of single-phase 1KW is implemented with digital signal process in this paper. The control rules of maximum power point tracking, three-step charging, software phase-locked loop and hybrid islanding detection technology of grid-connected system are implemented by the software of Matlab/Simulink, which are encoded and loaded into the DSP to perform these control rules. The maximum output power of a wind-turbine would not remain at constant under various wind speed. Therefore, it must depend on a maximum power point trackin
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Choudhury, Satish. "Performance Analysis of Doubly-fed Induction Generator in Wind Energy Conversion System." Thesis, 2011. http://ethesis.nitrkl.ac.in/2815/1/Final_thesis_satish.pdf.

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The statistical data conveys that Doubly-fed Induction Generator (DFIG) based wind turbine with variable speed and variable pitch control is the most common wind turbine in the growing wind market. This machine is usually used on the grid connected wind energy conversion system to satisfy grid code requirements such as grid stability, fault ride through (FRT), power quality improvement, grid synchronization and power control etc. Though the requirements are not fulfilled directly by the machine, the control strategy is used in both the stator as well as rotor side along with power electronic
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Naik, Shristy. "Modeling and Simulation of PMSG Based Stand-alone Wind Energy Conversion System." Thesis, 2016. http://ethesis.nitrkl.ac.in/9243/1/2016_MT_SNaik.pdf.

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The quest for higher living standard and rise of population force us to think about alternate energy sources as conventional energy sources have certain limitations. Therefore the focus has been shifted towards renewable sources of energy, as it is present in abundant amount and it will not create environmental pollution. Among the renewable sources of energy,wind energy is used as it is cost effective and available in all season. So in this context; PMSG based wind energy conversion system has increasingly drawn the interest of researcher. The model of wind energy conversion system (WECS) bas
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Thatoi, Debabrata. "Design, Control and Simulation of PMSG Based Stand-Alone Wind Energy Conversion System." Thesis, 2015. http://ethesis.nitrkl.ac.in/7506/1/2015_MTD_Design_Thatoi.pdf.

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In last decade, due to several limitations of conventional sources of energy such as high cost of fossil fuels, contribution towards pollution and environmental damage, scarcity in resources, there is an urge for the utilization of renewable sources of energy. Among several forms of renewable sources of energy, specifically wind energy conversion system is the most cost effective and technologically improvable. In variable speed operation, it is important that the generated power from PMSG should be optimized. Therefore in order to capture as much power as possible from wind during change in w
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Sivakrishna, K. "Modelling Of PMSG Based Stand-Alone Wind Energy Conversion System for Domestic Applications." Thesis, 2017. http://ethesis.nitrkl.ac.in/8929/1/2017_MT_KSivakrishna.pdf.

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This project works deals with the study of PMSG based low power standalone WECS and the flexibility in WECS that can be achieved for energizing varies types of DC as well as AC loads or for battery charging purpose in the remote places like hilly areas and/or islands, where the grid connections are difficult or almost impossible but are gifted with enormous amount renewable energy sources like solar and wind energy. Here the paper work includes the modelling, simulation and the hardware implementation of the closed loop buck converter (both voltage control method and current control method) us
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Barakati, Seyed Masoud. "Modeling and Controller Design of a Wind Energy Conversion System Including a Matrix Converter." Thesis, 2008. http://hdl.handle.net/10012/3786.

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In this thesis, a grid-connected wind-energy converter system including a matrix converter is proposed. The matrix converter, as a power electronic converter, is used to interface the induction generator with the grid and control the wind turbine shaft speed. At a given wind velocity, the mechanical power available from a wind turbine is a function of its shaft speed. Through the matrix converter, the terminal voltage and frequency of the induction generator is controlled, based on a constant V/f strategy, to adjust the turbine shaft speed and accordingly, control the active power injected int
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Acharya, Shuchismita. "Development of a Fuzzy PI Controller for a Grid Connected Wind Energy Conversion System." Thesis, 2014. http://ethesis.nitrkl.ac.in/6080/1/212EE3472-3.pdf.

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In recent years power generation from renewable energy sources has gained importance in view of supplementing the power obtained from conventional sources. Out of all the renewable energy sources, a wind energy conversion system is the greatest contributor to the power generations. During the recent years variable speed of the wind turbine is gaining much more importance than the fixed speed wind turbine. Some of the important factors regarding variable speed operation is that it is easy to control and is even much more efficient. Therefore, it is important to study the machine modelling of th
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Barik, Bikash Chandra. "Performance Analysis of Self Excited Induction Generator Based Stand-Alone Wind Energy Conversion System." Thesis, 2015. http://ethesis.nitrkl.ac.in/6826/1/PERFORMANCE_Barik_2015.pdf.

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The wind energy system is rapidly developing as one of the most favourable renewable energy sources in the present scenario. Due to the constant research in the field of wind energy related technology and generic growth in power electronics system, wind power generation becomes simpler and economical. For low power wind energy system, SEIG is a good choice as a wind power generator. It has lower cost compared to other generator, lower maintenance demands and natural protection against short circuit. The project mainly focuses on the dynamic analysis and modelling of self-excited induction gene
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Das, Satyajit. "Robust Active and Reactive Power Controllers for a Grid Connected Wind Energy Conversion System." Thesis, 2019. http://ethesis.nitrkl.ac.in/10057/1/2019_PhD_DSatyajit_513EE1008_Robust.pdf.

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Permanent Magnet Synchronous Generator (PMSG) is widely used in a Wind energy Conversion System (WECS) due to its several advantages, such as gear less construction, high power density, less noise, high torque and ease of maintenance. The control objective for a PMSG based WECS is to regulate the active power extraction from the wind and at the same time to maintain the reactive power at zero value in order to achieve unity power factor operation of WECS. A number of control algorithms have been proposed in the past to control the active power and reactive power of WECS. However, a WECS is sub
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