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Готові списки джерел за темами / Direct Current Auxiliary Power System / Дисертації

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Дисертації з теми "Direct Current Auxiliary Power System"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Song, Guanqiao. "Analysis of the energy consumption of the powertrain and the auxiliary systems for battery-electric trucks." Thesis, KTH, Fordonsdynamik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-286349.

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The electrification of the truck is crucial to meet the strategic vision of the European Union (EU) to contribute to net-zero greenhouse gas emissions for all sectors of the economy and society. The battery-electric truck is very efficient to reduce the emissions and has also a lower Total Cost of Ownership (TCO) compared to diesel trucks. Thus, the energy consumption of the battery-electric truck needs to be analysed in detail, and the differences in the conventional powertrain, recuperation by regenerative braking during driving and charging during standing, need to be considered. This maste

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2

Antaloae, C. C. "Feasibility of high frequency alternating current power distribution for the automobile auxiliary electrical system." Thesis, Cranfield University, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/6792.

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This study investigates the feasibility and potential benefits of high frequency alternating current (HFAC) for vehicle auxiliary electrical systems. A 100Vrms, 50kHz sinusoidal AC bus is compared with 14V DC and 42V DC electrical systems in terms of mass and energy efficiency. The investigation is focused on the four main sub-systems of an on-board electrical network, namely: the power generation, power distribution, power conversion and the electrical loads. In addition, a systemlevel inquiry is conducted for the HFAC bus and a comparable 42V DC system. A combination of computer simulation,

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3

Tiancheng, Zhang, and Zhang Yunlin. "High voltage Direct Current lines in the Chinese electric power system." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-12757.

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4

Tong, Sai-kit. "A computer-aided measurement system for monopolar high-voltage direct-current coronating lines /." [Hong Kong] : University of Hong Kong, 1986. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12321771.

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5

湯世傑 and Sai-kit Tong. "A computer-aided measurement system for monopolar high-voltage direct-current coronating lines." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1986. http://hub.hku.hk/bib/B31207467.

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6

Sklar, Akiva A. "A Numerical Investigation of a Thermodielectric Power Generation System." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/14020.

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The performance of a novel micro-thermodielectric power generation device (MTDPG) was investigated in order to determine if thermodielectric power generation can compete with current portable power generation technologies. Thermodielectric power generation is a direct energy conversion technology that converts heat directly into high voltage direct current. It requires dielectric (i.e., capacitive) materials whose charge storing capabilities are a function of temperature. This property is exploited by heating these materials after they are charged; as their temperature increases, their charg

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7

Mushagala, Jimmy Matabaro. "Harmonic analysis and effectiveness of mitigation techniques applied to a bipolar HVDC system." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2461.

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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2017.<br>High Voltage Direct Current (HVDC) transmission is a safe and efficient technology designed to deliver large amounts of electrical power over long distances with minimal losses and at low costs. HVDC links require converters and filters at both terminal stations. The core component of the HVDC system is the power converter that connects the DC and AC systems together. The conversion from AC to DC, and vice versa, is achieved mainly through electronic switches called thyristors. The thyristor-based Line C

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8

Yu, Chang, and 余暢. "An investigation of subsynchronous oscillation of AC/DC power systems: modeling and analysis." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B37151885.

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9

Yazdanpanah, Goharrizi Ali. "Parallel multi-modal optimal design and sensitivity assessment for electric power systems." IEEE Transaction on Power Delivery, 2016. http://hdl.handle.net/1993/31175.

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This thesis proposes a novel algorithm to optimize multi-modal, nonlinear, black-box objective functions for electric power system design using an electromagnetic transients (EMT) simulator. The algorithm discovers multiple local optimal solutions for a given complex power system, and then generates accurate surrogate models of an objective function around each discovered local optimal solution. These surrogate models represent the local behaviour of the objective function that can be used in the subsequent stages of sensitivity analyses. Using surrogate models instead of intensive transient s

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10

Lundin, Rasmus, and Benjamin Beitler-Dorch. "Modelling and Analysis of Mobile Energy Transmission for Offshore Wind Power : An analysis of flow batteries as an energy transmission system for offshore wind power." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-40082.

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A comparison between a traditional fixed high voltage direct current energy transmission system and a mobile transmission system utilizing vanadium redox flow batteries has been conducted in this degree work. The purpose of this comparison was to evaluate if a mobile energy transmission system could be competitive in terms of energy efficiency and cost-effectiveness for use in offshore wind power applications. A literary study was made to fully grasp the various technologies and to create empirical ground of which cost estimation methods and energy calculations could be derived. A specific sc

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11

MOSCA, CARMELO. "Methodologies for Frequency Stability Assessment in Low Inertia Power Systems." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2895393.

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12

Paccini, Rodrigo de Oliveira. "Estabilização de oscilações de potencia de linhas de intercambio atraves de um elo de corrente continua." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/260687.

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Orientador: Vivaldo Fernando da Costa<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-14T11:14:17Z (GMT). No. of bitstreams: 1 Paccini_RodrigodeOliveira_M.pdf: 1988341 bytes, checksum: 7be3a801c003202ec884c8313b60ac5f (MD5) Previous issue date: 2009<br>Resumo: Quando um sistema interligado de corrente alternada sofre variações de carga, sua freqüência pode exibir um comportamento oscilatório. Se este mesmo sistema possuir um elo de corrente contínua em paralelo com as linhas de intercâmbio,

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13

Raji, Atanda Kamoru. "Performance evaluation and improvement of grid-connected technology." Thesis, Cape Peninsula University of Technology, 2012. http://hdl.handle.net/20.500.11838/1198.

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Dissertation (DTech(Electrical Engineering))--Cape Peninsula University of Technology, 2012<br>The confluence of the limited resources of fossil fuels (e.g. coal, oil and natural gas), environmental degradations leading to climate change, security of supplies and fossil fuels high costs have demanded a tremendous efforts on humanity to seek for a sustainable and unlimited natural energy sources. Amongst these renewable energy sources stands out solar energy because of its ubiquitousness. Solar energy is converted to DC electricity by the photovoltaic effect. Photovoltaic (PV) power systems ins

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14

Bory, Devisme Olivia. "Développement d'un nanoréseau à courant continu (DC) pour l'autonomie énergétique des bâtiments." Electronic Thesis or Diss., La Réunion, 2024. http://www.theses.fr/2024LARE0017.

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Les nano et micro réseaux sont fortement étudiés par la communauté scientifique et le secteur industriel pour leur capacité à faciliter l'insertion et le stockage des énergies renouvelables dans les bâtiments. Les micro réseaux en courant continu (DC) présentent l'avantage de réduire les étapes de conversion du courant par rapport aux micro réseaux en courant alternatif (AC). Ceux-ci représentent donc une des solutions possibles pour réaliser des économies d'énergie au niveau de la conception des bâtiments, en particulier pour les sites isolés tels que l'île de La Réunion. Les études étant maj

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15

Andrieu, Christophe. "Contribution à la conception d'alimentations à découpage à absorption sinusoidale." Grenoble INPG, 1995. http://www.theses.fr/1995INPG0064.

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Le développement des alimentations à découpage évolue avec un environnement changeant par ses contraintes et ses possibilités. La concurrence économique pousse à réduire les volumes, augmenter les rendements et les normes deviennent plus difficiles à respecter. Une meilleure connaissance des composants actifs et passifs permet d'améliorer leurs caractéristiques et ainsi de rationnaliser le dimensionnement. Notre étude vise à la conversion de la tension réseau 230 V efficaces en une tension de sortie continue de 48 V. Le niveau de puissance correspond au maximum disponible sur une prise 16 A, s

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16

Yao, Ziwen. "Régulateur adaptatif robuste pour les liaisons de transport a courant continu en haute tension." Vandoeuvre-les-Nancy, INPL, 1993. http://www.theses.fr/1993INPL051N.

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Cette thèse présente un ensemble de méthodes de synthèse du contrôle commande adaptatif robuste dans le domaine fréquentiel pour les liaisons de transport à courant continu en haute tension destine à améliorer la stabilité en basse fréquence du réseau. Cet ensemble de méthodes consiste en une méthode de modélisation des réseaux d'interconnexion, une méthode d'analyse de stabilité pour les réseaux d'interconnexion, une approche d'identification des réseaux électriques et une approche de synthèse du régulateur adaptatif-robuste. La méthode de simplification de modélisation des réseaux d'intercon

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17

Gandioli, Camille. "Du dimensionnement à l'intégration dans le réseau électrique du limiteur de courant supraconducteur." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00913689.

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Les travaux de cette thèse portent sur l'intégration dans le réseau électrique du limiteur supraconducteur de courant (SCFCL). Un modèle du ruban supraconducteur ont été développé et validé grâce à une comparaison avec des tests expérimentaux. Premièrement, ce modèle a permis le dimensionnement du SCFCL du projet Eoccoflow (projet européen). Dans un deuxième temps, le modèle de SCFCL est intégré dans différents types de réseau. D'une part, l'intégration du SCFCL dans les réseaux haute tension continu maillés rend vraisemblable la protection de tels réseaux. D'autre part, grâce au SCFCL de nouv

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18

Aourir, Mazian Jamila. "Modeling and control of an urban wind turbine intended to be integrated into an electrical microgrid." Electronic Thesis or Diss., Compiègne, 2022. http://www.theses.fr/2022COMP2669.

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La forte consommation mondiale d'énergies fossiles accélère leur épuisement et menace l'équilibre environnemental de la Terre. Pour cela, de nouvelles catégories d'énergies basées sur des sources renouvelables sont développées pour construire un nouveau mix énergétique diversifié et décarboné. Afin de permettre une pénétration massive de ces sources d'énergie renouvelables (SER) dans le réseau public, l'utilisation de nouvelles structures de système électrique semble être une solution prometteuse, compte tenu de plusieurs aspects tels que les coûts, la sécurité d'approvisionnement, et la facil

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19

Tsung-JuiWu and 吳綜瑞. "Power Flow Control and Stability Analysis of a High-Voltage Direct Current Transmission System Connected to Power Systems." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/21850919878677320654.

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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>98<br>This thesis presents the analyzed results of power flow, stability, steady-state characteristics, and dynamic performance of a high-voltage direct current (HVDC) transmission system connected between two power systems as well as between an integrated hybrid large-scale offshore wind farm and marine-current farm and a power grid. Under three-phase balanced loading conditions, the q-d axis equivalent-circuit model is developed to establish the complete system models, and a proportional-integral-derivative (PID) damping controller of the HVDC system is designed

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20

Dastgeer, Faizan. "Direct current distribution systems for residential areas powered by distributed generation." Thesis, 2011. https://vuir.vu.edu.au/19383/.

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Анотація:

Power system began its journey with DC power as pioneered by Edison. However, this was soon rivalled by AC power and ultimately DC paradigm found itself quite obsolete, against the ongoing urge to adapt in favor of higher efficiency. AC became the choice for power transfer in all areas of the power system namely generation, transmission, sub-transmission and distribution. However, just as history repeats itself, the fight between these two paradigms of power transfer was reignited as DC proved to be comparable and in certain cases better suited for power transmission eventually leading

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21

LIN, Chien-Min, and 林千民. "Direct-current Bus System Transient Response and Analysis of the Thermal Power Plant in Bus Transfer." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/09313885617981366154.

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碩士<br>逢甲大學<br>資訊電機工程碩士在職專班<br>104<br>This thesis investigates the impact and analysis on the downstream DC power system of the thermal power plant when the medium-voltage auxiliary power system failure, the medium-voltage auxiliary power system performs bus to transfer the power system to the standby power system. It may cause change in the voltage and current of the downstream DC power system when upstream medium-low voltage auxiliary power system performs bus transfer. This change may cause the circuit breaker trips and emergency DC power failure. Further affects operation stability and safe

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22

Chun-YuLin and 林俊佑. "Stability Improvement and Power Flow Control of a Hybrid Renewable-Energy Power-Generation System Using a High-Voltage Direct-Current Link." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/72461320293950877895.

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23

Huang, Shih-Jung, and 黃士榮. "Product Development Strategy for High Voltage Direct Current (HVDC) Power System of Data Center - A Case Study of M Company." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/eb4fe4.

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碩士<br>國立臺灣科技大學<br>高階科研EMRD<br>107<br>With the advent of cloud computing and the era of big data, the construction of data center computer facilities has continued to grow throughout the world, and running those new computer facilities also results in relatively huge power consumption. Therefore, improving efficiency of power conversion becomes more and more important to newly-built data centers. In terms of power conversion, high-voltage direct current (HVDC) power systems have much higher efficiency than the traditional architecture of converting alternating current (AC) to low-voltage direct

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24

Adhip, *. "Active Power Flow Tracing for Preventive Control in Deregulated Power Systems." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/3633.

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Анотація:

Modern day power systems present an open access environment, inspiring participation from small scale and large power suppliers. With multiple players in the system driven by the market, proper monitoring and control of system becomes a major concern. This transformation is accompanied by dynamic consumption patterns and rising power demands. The expanding network encompassing EHV/AC network, HVDC and FACTS devices, along with increased penetration of renewable sources, viz. solar and wind energy at medium and low voltage levels, adds to the problem. Independent System Operators (ISO) are ent

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25

Adhip, *. "Active Power Flow Tracing for Preventive Control in Deregulated Power Systems." Thesis, 2017. http://etd.iisc.ernet.in/2005/3633.

Повний текст джерела

Анотація:

Modern day power systems present an open access environment, inspiring participation from small scale and large power suppliers. With multiple players in the system driven by the market, proper monitoring and control of system becomes a major concern. This transformation is accompanied by dynamic consumption patterns and rising power demands. The expanding network encompassing EHV/AC network, HVDC and FACTS devices, along with increased penetration of renewable sources, viz. solar and wind energy at medium and low voltage levels, adds to the problem. Independent System Operators (ISO) are ent

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26

Carvalho, Rafael Graça. "Projeto de Sistemas de Alimentação de Cargas Emergentes em Corrente Contínua." Master's thesis, 2021. http://hdl.handle.net/10316/97967.

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Анотація:

Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>Os sistemas de alimentação em corrente contínua têm como principal função alimentar todos os equipamentos de supervisão, controlo, iluminação de emergência, comunicações e proteções existentes numa infraestrutura da rede de distribuição, destinada a funções de transformação, corte e seccionamento. A facilidade em armazenar energia em corrente contínua, em detrimento da corrente alternada, tem vindo também a ser utilizada como alimentação dos equipamentos mais crí

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27

Surendra, S. "Development Of Algorithms For Improved Planning And Operation Of Deregulated Power Systems." Thesis, 2012. https://etd.iisc.ac.in/handle/2005/2336.

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Анотація:

Transmission pricing and congestion management are two important aspects of modern power sectors working under a deregulated environment or moving towards a deregulated system (open access) from a regulated environment. The transformation of power sector for open access environment with the participation of private sector and potential power suppliers under the regime of trading electricity as a commodity is aimed at overcoming some of the limitations faced by the vertically integrated system. It is believed that this transformation will bring in new technologies, efficient and alternative sou

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28

Surendra, S. "Development Of Algorithms For Improved Planning And Operation Of Deregulated Power Systems." Thesis, 2012. http://etd.iisc.ernet.in/handle/2005/2336.

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Анотація:

Transmission pricing and congestion management are two important aspects of modern power sectors working under a deregulated environment or moving towards a deregulated system (open access) from a regulated environment. The transformation of power sector for open access environment with the participation of private sector and potential power suppliers under the regime of trading electricity as a commodity is aimed at overcoming some of the limitations faced by the vertically integrated system. It is believed that this transformation will bring in new technologies, efficient and alternative sou

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