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Dissertations / Theses on the topic 'DFID model'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Golovkova, Nataliya. "Návrh protiopatření k útokům na konektivitu vozů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442359.

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The diploma thesis is focused on the issue of connective cars and the types of threats that can occur and how to protect against them. The general part described the general model of the car. In the next part of the work, templates were created in the Microsoft Threat Modeling Tool with threats and countermeasures to them.

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2

Piyasinghe, Lakshan Prageeth. "Dynamic Phasor Based Analysis and Control in Renewable Energy Integration." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/6015.

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The objective of this dissertation is to carry out dynamic modeling, analysis and control of power systems with Renewable Energy Sources (RES) such as: Photovoltaic (PV) power sources and wind farms. The dissertation work is mainly focused on microgrid since it plays a major role in modern power systems and tend to have higher renewable power penetration. Two main theoretical concepts, dynamic phasor and impedance modeling have been adopted to model and analyze the power systems/mocrogrids with RES. The initial state calculation which is essential for small signal analysis of a system is carri

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3

Ho, Viet Bun, and Xuan Thanh Le. "Research on the wind power’s ability in supplying electrical energy for 6kV grid of underground mines in Quang Ninh, Vietnam." Technische Universität Dresden, 2016. https://tud.qucosa.de/id/qucosa%3A32486.

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Quang Ninh province, Vietnam has a rich wind power resources. This type of energy will be soon utilized for generating power to supply all industrial sites including mining corporations. Because of geological characteristics, wind power stations are located near the 6kV grid of mining areas, therefore it needs to make the analysis about the connection ability of wind power generators to the grids. The paper presents the connection model of a wind turbine and 6kV grids. Based on this model, the simulations of system’s possible operating mode are implemented. The conclusions about the suitable o

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4

Alsmadi, Yazan M. "Modeling, Advance Control, and Grid Integration of Large-Scale DFIG-Based Wind Turbines during Normal and Fault Ride-Through Conditions." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1437140573.

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5

Jongsaliswang, Metinee. "Bank business models in Southeast and East Asia : implications for stability." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/bank-business-models-in-southeast-and-east-asia-implications-for-stability(f667dff0-df8d-40e9-a0a0-bda177fb096b).html.

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This research aims to understand the effect of business models in the Asian banking industry during the most recent financial crisis, and to identify effective banking business models for the post-crisis landscape. This research was based on observations about the importance of the bank business model for reaching bank stability, as well as a lack of research that focuses on Southeast and East Asia. Its main originality is in the application of existing stability models to banks in Asia, which has rarely been tested. The research uses an econometric approach, with several methods selected (inc

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6

Plíšek, Martin. "Nástroj pro podporu analýzy rizik v informační bezpečnosti." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2012. http://www.nusl.cz/ntk/nusl-236450.

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The master thesis deals with the development of the tool for risk analysis support in information security. At first we perform a theoretical basis for security development of lifecycle process (SDL). Afterwards the theory of risk analysis based on fault tree analysis is described. Considering this knowledge base system was designed and implemented. Next chapter describes the best practice refer to the typical example of use and presents the potencial using of this tool in practice. Final chapter deals with the possibility of future expansion of this application.

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7

Riachy, Léa. "Contribution à la commande d'un onduleur multiniveaux, destinée aux énergies renouvelables, en vue de réduire le déséquilibre dans les réseaux électriques." Thesis, Normandie, 2017. http://www.theses.fr/2017NORMR076/document.

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Le travail de cette thèse apporte une contribution aux méthodes de réglage de la tension dans les réseaux électriques. Il s’agit de fournir au réseau la puissance active et surtout la puissance réactive nécessaire pour réguler la tension et aboutir à un système équilibré vue du côté source. Ces puissances sont extraites d’une source d’energie renouvelable : une attention particulière a été portée à l’énergie éolienne raccordée au réseau à travers la Machine Asynchrone à Double Alimentation (MADA) pilotée par des convertisseurs statiques. Le système de contrôle le plus répandu des éoliennes est

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8

Ngo, Van Quang Binh. "Algorithmes de conception de lois de commande prédictives pour les systèmes de production d’énergie." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLC031/document.

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Cette thèse vise à élaborer de nouvelles stratégies de commande basées sur la commande prédictive pour le système de génération d’énergie éolienne. La topologie des systèmes de production éolienne basées sur le Générateur Asynchrone à Double Alimentation (GADA) qui convient à des plateformes de génération dans la gamme de puissance de 1.5 à 6 MW est abordée. Du point de vue technologique, le convertisseur à trois niveaux et clampé par le neutre (3L-NPC) est considéré comme une bonne solution pour une puissance élevée en raison de ses avantages: capacité à réduire la distorsion harmonique de la

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9

Adolfssson, Alexander, and Marie Åström. "Development Finance Institutions’ Effect on The Fund Manager’s Investment Decisions : Balancing Financial Performance Goals and Development Impact Objectives." Thesis, Umeå universitet, Företagsekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-124744.

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Development Finance Institutions (DFIs) have played a crucial role in moving socially responsibility considerations up on the private equity industry’s agenda. DFIs add a development impact criterion to traditional financial performance goals in the investment industry and play a catalytic role by mobilizing other investors. The gap in research regarding DFIs implications and significance in the investment community from a SRI perspective is evident. The development impact objective introduced by the DFIs is examined to understand its effects on fund managers’ decision-making and if it exists

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10

Adabi, Firouzjaee Jafar. "Remediation strategies of shaft and common mode voltages in adjustable speed drive systems." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/39293/1/Jafar_Adabi_Firouzjaeel_Thesis.pdf.

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AC motors are largely used in a wide range of modern systems, from household appliances to automated industry applications such as: ventilations systems, fans, pumps, conveyors and machine tool drives. Inverters are widely used in industrial and commercial applications due to the growing need for speed control in ASD systems. Fast switching transients and the common mode voltage, in interaction with parasitic capacitive couplings, may cause many unwanted problems in the ASD applications. These include shaft voltage and leakage currents. One of the inherent characteristics of Pulse Width Modu

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11

RUCHIKA. "MODELLING AND CONTROL OF WIND-DRIVEN DFIG." Thesis, 2023. http://dspace.dtu.ac.in:8080/jspui/handle/repository/20104.

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Wind energy stands out among other renewable coffers or energy sources (RESs), analogousto solar, wave, and geothermal energy due to its highest level of safety and low cost among all other types of renewable resources. There were no precise guidelines demonstrated to concatenate the wind dynamic networks to the grid or any other load in the early eras when sharing wind energy with the grids was relatively low and inconsequential. It was then advised to disconnect the wind turbine from the grid and any other connected power electronic converters in the event of any sudden abrupt dis

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12

Fakhari, Moghadam Arani Mohammadreza. "Incorporating DFIG-Based Wind Power Generator in Microgird Frequency Stabilization." Thesis, 2011. http://hdl.handle.net/10012/6471.

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Although wind power as a renewable energy is assumed to be an all-round advantageous source of energy, its intermittent nature can cause difficulties, especially in the islanding mode of operation. Conventional synchronous generators can help to compensate for wind fluctuations, but the slow behavior of such systems may result in stability concerns. In this study, the virtual inertia method, which imitates the kinetic inertia of a synchronous generator, is used to improve the system’s dynamic behavior. Since the proposed method incorporates no long-term power regulation, it requires no mass s

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13

Pinfold, TL. "Devil Facial Tumour Disease: In vivo studies in mice." Thesis, 2014. https://eprints.utas.edu.au/22428/1/whole-Pinfold-thesis.pdf.

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Devil Facial Tumour Disease (DFTD) is an infectious cancer cell line transmitted as an allograft between Tasmanian devils. On transmission it does not evoke an immune response, is 100% fatal and is driving the Tasmanian devil towards extinction in the wild. Due to their endangered status, access to Tasmanian devils to study DFTD is limited. As a consequence this study of DFTD was undertaken in mice to complement studies being done in Tasmanian devils. Inoculation of immunocompetent mice with DFTD cells did not result in DFTD tumour establishment. This rejection was a specific immune response

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14

HU, YI-LIANG, and 胡毅亮. "Development of a Modified Generic Model of a DFIG-based Wind Turbine Considering Mechanical Transient." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/x6f8vf.

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碩士<br>國立中正大學<br>電機工程研究所<br>105<br>Over the last decade, the wind power penetration has increased substaintially because of the environmental consideration. With the integration of so much wind power generating capacity, the system operators are facing the challenges of maintaining the power system stability. Thus, the structure and accuracy of the wind turbine (WT) model are critical to the simulation and analysis of the large-scale power system. The use of the complex model to analyze the steady-state operation and dynamic stability of the power system requires long computation time and heavy

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15

Κανελλάκης, Αθανάσιος. "Μελέτη συστήματος ανεμογεννήτριας με επαγωγική μηχανή διπλής τροφοδοσίας (DFIG) : προσομοίωση σε περιβάλλον Matlab". Thesis, 2011. http://nemertes.lis.upatras.gr/jspui/handle/10889/4396.

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Η παρούσα διπλωματική εργασία πραγματεύεται την ανάλυση της επαγωγικής γεννήτριας διπλής τροφοδοσίας (DFIG), την εξαγωγή μαθηματικών μοντέλων στο χώρο κατάστασης σε κανονική λειτουργία και σε λειτουργία με γραμμή μεταφοράς, την ενσωμάτωση PI ελέγχου της άεργου ισχύος στην πλευρά του δικτύου και τέλος την προσομοίωση του μοντέλου (με και χωρίς γραμμή μεταφοράς) σε περιβάλλον Matlab και την εξαγωγή συμπερασμάτων. Ειδικότερα Στο Κεφάλαιο 1 ξεκινάμε με μια επισκόπηση του ενεργειακού ζητήματος και την μέχρι τώρα χρήση της ενέργειας, παρουσιάζοντας τους λόγους που οδηγούμαστε προς τις Ανανεώσι

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16

Faria, Keith Joseph. "Doubly-fed induction generator based wind power plant models." Thesis, 2009. http://hdl.handle.net/2152/ETD-UT-2009-12-627.

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This thesis describes the generic modeling of a Doubly-Fed Induction Generator (DFIG) based wind turbine. The model can also represent a wind plant with a group of similar wind turbines lumped together. The model is represented as a controlled current source which injects the current needed by the grid to supply the demanded real and reactive power. The DFIG theory is explained in detail as is the rationale for representing it by a regulated current source. The complete model is then developed in the time-domain and phasor domain by the interconnection of various sub-systems, the functions of

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17

LANNA, ANDREA. "Control strategies for the integration of renewable energy sources in distribution and transmission networks." Doctoral thesis, 2016. http://hdl.handle.net/11573/875275.

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This PhD thesis presents an innovative control strategy for the integration of renewable energy sources in distribution and transmission networks. This work is based on a multilevel control approach that takes into account the current technology, state of the art and legislative limits and considering the most promising trends. The outer loop control is based on a real time strategy for optimal power flow in presence of storage devices and wind turbine driven by Doubly Fed Induction Generators. These elements work in cooperation defining a dy- namic bus where the generated power is subject to

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18

Allopi, Dhiren. "Towards a more effective and efficient public transport system : a case study." Thesis, 1998. http://hdl.handle.net/10321/2792.

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Submitted in partial fulfillment of the requirements for the Degree of Doctor in Technology: Civil Engineering at Technikon Natal, 1998.<br>The Government of South Africa has recognised transport as one of its five main priority areas for socia-economic development. One of the Governments strategic objectives, as reflected in the white paper on National Transport Policy, is to promote the use of public transport with the goal of achieving a ratio of 80:20 between public transport and private car usage, as a long term vision. This is no easy task and in order to achieve this goal, an in depth a

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19

Moshaver, Sam. "Designing supplementary space in multi-family housing." Thesis, 2020. http://hdl.handle.net/1866/25511.

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La démographie et les modes de vie ont considérablement évolué au cours des dernières décades. De tels changements sont destinés à influencer la conception de l’habitation et ils incluent notamment une série de besoins émergents: s’en suivent des besoins additionnels en espace pour répondre à l’arrivée de ces activités additionnelles au niveau du logement. La planification en vue de répondre à ces besoins émergeants constitue le principal thème de la présente thèse. Dans le cas de la maison unifamiliale détachée, le sous-sol est disponible pour offrir des espaces appropriés à ces besoins émerg

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