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Dissertations / Theses on the topic 'Electric discharges – Computer simulation'

Author: Grafiati

Published: 30 June 2021

Last updated: 29 July 2025

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1

Illias, Hazlee Azil. "Measurement and simulation of partial discharges within a spherical cavity in a solid dielectric material." Thesis, University of Southampton, 2011. https://eprints.soton.ac.uk/194921/.

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For high voltage components, the measurement of partial discharge (PD) is used in the performance assessment of an insulation system. Through modelling the PD process, a better understanding of the phenomenon may be attained. In this work, a model for a spherical cavity within a homogeneous dielectric material has been developed using Finite Element Analysis (FEA) software in parallel with MATLAB programming code. The model has been used to study the effect of various applied stresses and cavity conditions on PD activity and also the electric field and temperature distributions within the cavi

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2

Tran, Trung Nam. "Surface discharge dynamics : theory, experiment and simulation." Thesis, University of Southampton, 2010. https://eprints.soton.ac.uk/165509/.

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The use of solid insulators in electrical generation, transmission and distribution is widespread. However, the accumulation of charge on the insulator surface has proved to be one of the major factors contributing to system failures. This research work is aimed at studying the dynamics of surface discharge in theory, by simulation and experiment. Different surface charging theories have been reviewed and classiffied according to electric field uniformity. The focus is on basic processes involved in the formation of positive and negative surface discharges. The experimental work utilises the n

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3

Van, der Straaten Trudy. "A particle-in-cell simulation of a DC magnetron discharge." Thesis, The University of Sydney, 1996. https://hdl.handle.net/2123/27510.

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Magnetron discharges have applications in the materials processing industry for the fabrication of thin films via sputter deposition. Despite their wide use, the underlying physics of the discharge is not well understood. In particular, the transport mechanisms that enable the electrons to migrate across magnetic field lines at low pressures have not been conclusively established. The research reported in this thesis is directed toward understanding this problem further.

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4

Vieira, Marcos Stefanelli. "Influência das edificações na propagação de ondas eletromagnéticas geradas por descargas atmosféricas." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-15072016-150045/.

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Descargas atmosféricas representam uma das principais causas de interrupção no fornecimento de energia para os consumidores, e embora tenham efeitos mais intensos quando incidem diretamente nas redes elétricas, é o caso das descargas indiretas que chama mais atenção, já que elas ocorrem com maior frequência. Tanto as primeiras descargas que geralmente ocorrem com maior intensidade de corrente, quanto as descargas subsequentes que têm menor tempo de frente associado, irradiam campos eletromagnéticos que ao se acoplarem com as redes elétricas geram surtos que podem causar tanto a interrupção do

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5

Yourkowski, Joel. "Computer simulation of an unmanned aerial vehicle electric propulsion system." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1996. http://handle.dtic.mil/100.2/ADA307294.

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6

林霙芝 and Ying-chi Lam. "Agent-based simulation of electricity markets." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31222882.

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7

Zaag, Nader. "Fast simulation of cascading outages with islanding." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112588.

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This thesis proposes an efficient power system simulator to estimate the automatic sequence of events that follow a fault contingency leading to islanding and cascading outages. The simulator is based on a quasi-steady state model that includes island identification, under-frequency load shedding, over-frequency generator tripping, and island load flow. Contingencies can include the outage of generators, loads, or transmission lines. Often times, a fault of one or two of these power system elements can lead to many cascaded outages and system islanding. The simulator utilizes an innovative met

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8

Lai, Tsz-ming Terence, and 黎子明. "Harmonic simulation of traction system." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B3122281X.

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9

Arès, Jean-Michel. "A knowledge-based model and simulator for alarm and protection systems of power networks /." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63921.

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10

Miyake, Yohei. "Computer Experiments on Electric Antenna Characteristics in Space Plasma Environment." 京都大学 (Kyoto University), 2009. http://hdl.handle.net/2433/77978.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第14623号<br>工博第3091号<br>新制||工||1460(附属図書館)<br>26975<br>UT51-2009-D335<br>京都大学大学院工学研究科電気工学専攻<br>(主査)教授大村善治, 准教授松尾哲司, 准教授酒井道<br>学位規則第4条第1項該当

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11

Liao, Jen-Chyi. "Computer simulation of multiple coupled transmission lines in electronic packaging application." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184659.

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A method for simulating the transient responses of networks containing lossless transmission lines and lumped parameter elements of circuits, both linear and nonlinear, has been developed and investigated. The method combines the technique of network analysis and that of modal decomposition of transmission lines. A prototype computer simulation program, called UANTL, based on the developed algorithm has been implemented. Several example networks have been simulated using this program. The results have been compared with those generated by the well known circuit simulator program called SPICE.

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12

Parikh, Rajiv D. "PC based simulation software package for an uninterruptable power supply." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-11242009-020238/.

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13

Atkinson-Hope, Gary. "An integrated programme for power systems simulation using personal computers (PC's)." Thesis, Cape Technikon, 1993. http://hdl.handle.net/20.500.11838/1147.

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Thesis (Masters Diploma (Technology)--Cape Technikon, Cape Town, 1993<br>The research objectives were to: Formulate a training structure covering conventional power systems topics; Research existing PC based power systems software resources; Develop a structure for a PC based power systems course; Research the capabilities of the software resources chosen; Develop a structure for a modern PC based power systems course taking into account the capabilities and limitations of the selected software programs; Develop for the PC based power systems course, task orientated computer based la

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14

Wang, Xiaolin. "Synchronous fault simulation by surrogate with exceptions." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184687.

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The contribution of this dissertation is the development of a completely new and accurate algorithm SFSSE for synchronous fault simulation of sequential circuits. The distinctive difference between SFSSE (Synchronous Fault Simulation by Surrogate with Exceptions) and similar approaches for fault simulation in combinational logic circuits is that SFSSE is capable of handling faults stored in more than one memory elements and the reconvergence over time of the stored fault effect with the original fault. The experimental result shows a significant improvement for SFSSE by comparing its execution

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15

Arata, John Paul III. "Simulation and control strategy development of power-split hybrid-electric vehicles." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42790.

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Power-split hybrid-electric vehicles (HEVs) provide two power paths between the internal combustion (IC) engine and the driven wheels through gearing and electric machines (EMs) composing an electrically variable transmission (EVT). EVTs allow IC engine control such that rotational speed is independent of vehicle speed at all times. By breaking the rigid mechanical connection between the IC engine and the driven wheels, EVTs allow the IC engine to operate in the most efficient region of its characteristic brake specific fuel consumption (BSFC) map. If the most efficient IC engine operating

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16

Girouard, Pierre. "Un système expert pour la gestion en temps réel des alarmes dans un réseau électrique /." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63940.

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17

Woodburn, David. "Modeling and Simulation of All-electric Aircraft Power Generation and Actuation." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6037.

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Modern aircraft, military and commercial, rely extensively on hydraulic systems. However, there is great interest in the avionics community to replace hydraulic systems with electric systems. There are physical challenges to replacing hydraulic actuators with electromechanical actuators (EMAs), especially for flight control surface actuation. These include dynamic heat generation and power management. Simulation is seen as a powerful tool in making the transition to all-electric aircraft by predicting the dynamic heat generated and the power flow in the EMA. Chapter 2 of this dissertation des

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18

劉紅進 and Hongjin Liu. "Implementation of a multi-agent based power market simulator." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31224829.

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19

Garrett, Bretton Wayne. "Digital simulation of power system protection under transient conditions." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27303.

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This work demonstrates the use of digital simulation for analyzing protection system performance. For studies of complex, multi-relay protection systems, digital simulation provides utility engineers with an attractive alternative to relay testing techniques. The cost of digital simulation facilities can be lower than the cost of comparable testing facilities; relay hardware does not have to be made available for the test laboratory. Digital simulation would ordinarily be impractical for security and dependability studies, due to the thousands of individual simulations involved. The number o

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20

Li, You. "Design of low-capacitance and high-speed electrostatic discharge (ESD) devices for low-voltage protection applications." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4551.

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Electrostatic discharge (ESD) is defined as the transfer of charge between bodies at different potentials. The electrostatic discharge induced integrated circuit damages occur throughout the whole life of a product from the manufacturing, testing, shipping, handing, to end user operating stages. This is particularly true as microelectronics technology continues shrink to nano-metric dimensions. The ESD related failures is a major IC reliability concern and results in a loss of millions dollars to the semiconductor industry each year. Several ESD stress models and test methods have been develop

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21

Onwunta, Onwunta Emea Kalu. "Modelling and simulation of the impacts of distributed generation integration into the smart grid." Thesis, Cape Peninsula University of Technology, 2014. http://hdl.handle.net/20.500.11838/1200.

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Thesis submitted in fulfilment of the requirements for the degree Doctor of Technology: Electrical Engineering in the Faculty of Engineering at the Cape Peninsula University of Technology 2014<br>Distributed generation (DG) has been reincarnated after its demise by centralised generation. While economy of scale and efficiency are the advantages of the latter, deregulation of the electricity market, environmental concerns and the need to arrest dwindling reserve margins have necessitated the rebirth of the former. Indeed, a full circle has therefore evolved with generation being ‘embedded’

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22

Spinks, Stephen James. "Fault simulation for structural testing of analogue integrated circuits." Thesis, University of Hull, 1998. http://hydra.hull.ac.uk/resources/hull:8047.

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In this thesis the ANTICS analogue fault simulation software is described which provides a statistical approach to fault simulation for accurate analogue IC test evaluation. The traditional figure of fault coverage is replaced by the average probability of fault detection. This is later refined by considering the probability of fault occurrence to generate a more realistic, weighted test metric. Two techniques to reduce the fault simulation time are described, both of which show large reductions in simulation time with little loss of accuracy. The final section of the thesis presents an accura

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23

Kant, Krishan S. M. Massachusetts Institute of Technology. "Finite element simulation based design and optimization of electric motors for EV/HEV traction application." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122551.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 125-129).<br>The launch of so many commercial electric vehicles shows the effort toward pollution reduction and curtailing greenhouse gas emissions. A design for an electric vehicle does not just requires the electrical system to be efficient in particular; but it is required to perform in all extreme cases of thermal and mechanical stresses. And it is made possible by all the research and dev

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24

Bowlin, Oscar E. "Modeling and simulation of the free electron laser and railgun on an electric Naval surface platform." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Mar%5FBowlin.pdf.

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25

Legesse, Michael. "Coupled simulation of an indirect field oriented controlled induction motor drive." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=116014.

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Conventionally, system simulations of induction motor drives use lumped parameters model of the motor. This approach assumes motor parameters to be constant during the entire operation of the drive. Unfortunately, these are known to vary significantly over the operating range of the motor due to factors such as magnetic saturation, skin effects, and operating temperature. The variations in motor parameters affect motor output and control parameters resulting in degraded drive performance. One way of overcoming this problem is by coupling the field model of the induction motor with the drive si

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26

Tevi, Tete. "Enhancement of Supercapacitor Energy Storage by Leakage Reduction and Electrode Modification." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6148.

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Supercapacitors have emerged in recent years as a promising energy storage technology. The main mechanism of energy storage is based on electrostatic separation of charges in a region at the electrode-electrolyte interface called double layer. Various electrode materials including carbon and conducting polymers have been used in supercapacitors. Also, supercapacitors offer high life cycle and high power density among electrochemical energy storage devices. Despite their interesting features, supercapacitors present some disadvantages that limit their competitivity with other storage devices in

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27

Setréus, Johan. "Development of a Simulation Module for the Reliability Computer Program RADPOW." Thesis, KTH, School of Electrical Engineering (EES), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4119.

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<p>Detta examensarbete beskriver hur en Monte Carlo simulering (MCS) kan användas för tillförlitlighetsanalys av ett eldistributionssystem. Metoden har implementerats i verktyget RADPOW som nu kan utföra både analytiska och numeriska beräkningar. Angreppssättet för att utveckla denna MCS metod i RADPOW innefattade följande aktiviteter:</p><p>• Vidareutvecklade av RADPOW med införandet av ett grafiskt användargränssnitt för Windows.</p><p>• Utveckling och implementering av en iterativ analytisk metod för känslighetsanalys av eldistributionssystem i RADPOW.</p><p>• Utveckling och implementering

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28

Mehta, Shilpa D. "A circuit model BOSS simulation of nonlinear effects in long distance fiber optic systems." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-07112009-040230/.

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29

Shi, Benyun. "Computational methods and mechanisms for evaluating and enhancing the robustness of energy distribution systems." HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1408.

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30

Yen, Wen-Tsung. "Comparison of SPICE and Network C simulation models using the CAM system." PDXScholar, 1991. https://pdxscholar.library.pdx.edu/open_access_etds/4243.

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The performance of SPICE and Network C (NC) circuit simulator when simulating MOS transistor circuits has been investigated and compared. SPICE analog model, NC analog model and NC MOS_PWL model are the three MOS transistor models being used. The comparison between SPICE and NC includes five areas. They are MOS transistor model, circuit analysis and computational methods, limitation on the ability to simulate circuits containing the MOS transistor diode configuration, run time and the ability to build new circuit component models using derived equations.

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31

Fridlund, Joakim, and Oliver Wilén. "Parameter Guidelines for Electric Vehicle Route Planning." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279555.

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There is an urgent need to migrate the vehicle industry from conventional combustion vehicles to electric vehicles due to pressing climate changes caused by the fossil fuel industry. The general public seem to have a prejudice against electric vehicles due to their limited range and the extra planning that may be required from the user. The market for electric vehicles is much more limited than for conventional vehicles, partially because it is a much younger industry. Buying an electric vehicle is also a bigger change than just buying a new car, one has to plan and manage the limited range in

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32

Narasimha, Raju Divya. "Study of ESD effects on RF power amplifiers." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4993.

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Today, ESD is a major consideration in the design and manufacture of ICs. ESD problems are increasing in the electronics industry because of the increasing trend toward higher speed and smaller device sizes. There is growing interest in knowing the effects of ESD protection circuit on the performance of semiconductor integrated circuits (ICs) because of the impact it has on core RF circuit performance. This study investigated the impact of ESD protection circuit on RF Power amplifiers. Even though ESD protection for digital circuits has been known for a while, RF-ESD is a challenge. From a tho

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33

Malobabic, Slavica. "Transient Safe Operating Area (TSOA) for ESD applications." Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5420.

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A methodology to obtain design guidelines for gate oxide input pin protection and high voltage output pin protection in Electrostatic Discharge (ESD) time frame is developed through measurements and Technology Computer Aided Design (TCAD). A set of parameters based on transient measurements are used to define Transient Safe Operating Area (TSOA). The parameters are then used to assess effectiveness of protection devices for output and input pins. The methodology for input pins includes establishing ESD design targets under Charged Device Model (CDM) type stress in low voltage MOS inputs. Th

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34

Nguyen, Duy Huu Manh. "Analysing electricity markets with evolutionary computation." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2002. http://theses.library.uwa.edu.au/adt-WU2003.0018.

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The use of electricity in 21st century living has been firmly established throughout most of the world, correspondingly the infrastructure for production and delivery of electricity to consumers has matured and stabilised. However, due to recent technical and environmental–political developments, the electricity infrastructure worldwide is undergoing major restructuring. The forces driving this reorganisation are a complex interplay of technical, environmental, economic and political factors. The general trend of the reorganisation is a dis–aggregation of the previously integrated functions of

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35

Chaillout, J. J. "De la simulation .... .... à la récupération." Habilitation à diriger des recherches, Université de Grenoble, 2007. http://tel.archives-ouvertes.fr/tel-00614924.

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Le " Chapitre II : De la simulation...." résume ma connaissance des principales méthodes numériques utilisées en électromagnétisme. Suit ensuite le résumé de mes études les plus représentatives dans le domaine de la simulation numérique en électromagnétisme : une en statique, une en quasi-statique avec couplage faible et une en propagation d'ondes. Souvent seule la méthode appliquée à des cas test est présentée, car leurs niveaux de confidentialité empêchent d'en présenter les résultats quantifiés. Le " Chapitre III :.... À la récuperation " contient tout d'abord un état de l'art de la récupér

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36

Stefopoulos, Georgios Konstantinos. "Quadratic power system modeling and simulation with application to voltage recovery and optimal allocation of VAr support." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29695.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Meliopoulos, A. P. Sakis; Committee Member: Deng, Shijie; Committee Member: Divan, Deepakraj; Committee Member: Harley, Ronald; Committee Member: Taylor, David. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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37

Ellis, Mikle Val. "The ladder load-flow method extended to distribution networks." Diss., Virginia Tech, 1994. http://hdl.handle.net/10919/39138.

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The rigorous load-flow analysis of Distribution Networks requires the modeling of mutual coupling, multiphase possibilities and unbalanced loading. The Ladder Load-Flow Method meets these requirements, but is limited to radial systems. The Switch Compensation Method presented here, extends the Ladder Load-Flow Method to solve Distribution Networks. A network analysis program has been developed using the Electric Power Research Distribution Engineering Workstation (DEWorkstation). The program uses the pointers provided by the DEWorkstation to represent the connectivity of the system. The use of

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38

Skowronn, Dietmar Reinhard. "Simulation of Switched Linear Networks." PDXScholar, 1993. https://pdxscholar.library.pdx.edu/open_access_etds/4644.

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This thesis deals with the time-domain analysis of switched linear networks and investigates inherent problems which have to be considered when analyzing this class of networks. Computer simulation requires the use of numerical methods and we focus on the transmission -line modelling technique (TLM) and the numerical inverse Laplace transform. A general approach based on the one-graph modified nodal description is given which allows the formulation of circuit equations of a TLM-modelled circuit by inspection. The numerical equivalence of TLM and trapezoidal rule has been found and a proof is g

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Tiew, Chin-Yaw. "On improving the performance of parallel fault simulation for synchronous sequential circuits." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-03042009-040323/.

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Aminou, Moussavou Anges Akim. "Modelling and analysis of microgrid control techniques for grid stabilisation." Thesis, Cape Peninsula University of Technology, 2014. http://hdl.handle.net/20.500.11838/1184.

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Thesis submitted in fulfilment of the requirements for the degree Master of Technology: Electrical Engineering in the Faculty of Engineering at the Cape Peninsula University of Technology 2014<br>In recent times, renewable energy-based distributed generation (DG) has captivated the industrial sector and on a global scale this has become a leading research area. Distributed generation using wind, solar energy or biomass as a source of energy can produce electricity on a small scale. Therefore, there is a strong focus on using renewable energy as a safe alternative source of energy, especia

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Conradie, Antonie Eduard. "Performance optimization of engineering systems with particular reference to dry-cooled power plants." Thesis, Link to the online version, 1995. http://hdl.handle.net/10019.1/1326.

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Lee, Hyung Ki. "Fault simulation and test pattern generation for synchronous and asynchronous sequential circuits." Diss., This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06062008-171759/.

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43

Wirnsberger, Peter. "Computer simulation and theoretical prediction of thermally induced polarisation." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/282988.

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In this thesis, we study the phenomenon of thermally induced polarisation using a combination of theory and computer simulation. Molecules of sufficiently low symmetry exhibit thermo-molecular orientation when subjected to a temperature gradient, leading to considerable electrostatic fields in polar liquids. Here, we first use non-equilibrium molecular dynamics simulations to study this interesting effect numerically. To this end, we propose an integration algorithm to impose a constant heat flux in simulations and show that it greatly improves energy conservation compared to a previous algori

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Fahey, Mark, and n/a. "Assessment of the suitability of CFD for product design by analysing complex flows around a domestic oven." University of Otago. Department of Design Studies, 2007. http://adt.otago.ac.nz./public/adt-NZDU20070417.111809.

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Competitive global markets are increasing the commercial pressure on manufacturing companies to develop better products in less time. To meet these demands, the appliance manufacturer, Fisher & Paykel, has considered the use of computer simulation of fluid flows to assist in product design. This technology, known as Computational Fluid Dynamics (CFD), has the potential to provide rewarding insight into the behaviour of designs involving fluids. However, the investment in CFD is not without risk. This thesis investigates the use of CFD in oven design expressly to evaluate the numerical accuracy

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Luwaca, Emmanuel. "Virtualization of a sensor node to enable the simulation of IEC 61850-based sampled value messages." Thesis, Cape Peninsula University of Technology, 2014. http://hdl.handle.net/20.500.11838/1179.

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Thesis submitted in fulfilment of the requirements for the degree Master of Technology: Electrical Engineering in the Faculty of Engineering at the Cape Peninsula University of Technology 2014<br>The IEC 61850 standard, “Communication networks and systems in substations” was promulgated to accommodate the need for a common communication platform within substations for devices from different vendors. The IEC 61850 standard proposes a substation automation architecture that is Ethernet-based, with a “station-bus” for protection devices within the substation and a “process bus” where raw

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Lee, Chong Kyong 1973. "Continuation methods for steady state analysis of oscillators." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99777.

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Oscillator circuits are an integral component of wireless communications systems and are increasingly in demand. As such systems gain widespread use, price becomes a very important factor in the design process, and the design cycle must be optimized. This puts an increasing emphasis on the proficiency of oscillator design automation tools. At the same time, as the performance requirements of such systems are becoming more stringent, the required simulation complexity is also increasing. More specifically, high frequency selectivity and low phase noise require very high quality factor oscillato

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Pinchuk, Amy Ruth. "Spectrally correct finite element analysis of electromagnetic fields." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75780.

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Direct solution for three dimensional electric or magnetic field vectors throughout the frequency spectrum is accomplished by a finite element formulation which includes displacement and conduction currents, and requires no special treatment for material interfaces. Analysis of bus bar and Bath cube eddy current problems demonstrate the capabilities of the method.<br>Spurious components in solutions to vector field problems are shown to corrupt deterministic solutions. These corruptions are identifiable with spurious modes familiar to high frequency modal analysis. Spectrally correct mixed ord

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Liu, Kai, and 劉愷. "Optimal dispatch and management for smart power grid." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46336680.

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49

Ng, Kwok-kei Simon, and 吳國基. "Optimal planning and management of stochastic demand and renewable energy in smart power grid." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B50434299.

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Abstract:

To combat global climate change, the reduction of carbon emissions in different industries, particularly the power industry, has been gradually moving towards a low-carbon profile to alleviate any irreversible damage to the planet and our future generations. Traditional fossil-fuel-based generation is slowly replaced by more renewable energy generation while it can be harnessed. However, renewables such as solar and wind are stochastic in nature and difficult to predict accurately. With the increasing content of renewables, there is also an increasing challenge to the planning and operation o

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Liu, Zhiwei. "Design of silicon controlled rectifers sic] for robust electrostatic discharge protection applications." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4552.

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Abstract:

Another issue with SCR devices is its deep snapback or lower holding voltage, which normally will lead to the latch-up happen. To make SCR devices be immunity with latch-up, it is required to elevate its holding voltage to be larger than the circuits operational voltage, which can be several tens volts in modern power electronic circuits. Two possible solutions have been proposed to resolve this issue. One solution is accomplished by using a segmented emitter topology based on the concept that the holding voltage can be increased by reducing the emitter injection efficiency. Experimental data

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