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Relevant bibliographies by topics / Voltage Optimization / Dissertations / Theses

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Dissertations / Theses on the topic 'Voltage Optimization'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Thakral, Garima. "Process-Voltage-Temperature Aware Nanoscale Circuit Optimization." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc67943/.

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Embedded systems which are targeted towards portable applications are required to have low power consumption because such portable devices are typically powered by batteries. During the memory accesses of such battery operated portable systems, including laptops, cell phones and other devices, a significant amount of power or energy is consumed which significantly affects the battery life. Therefore, efficient and leakage power saving cache designs are needed for longer operation of battery powered applications. Design engineers have limited control over many design parameters of the circuit a

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2

Rosehart, William D. "Optimization of power systems with voltage security constraints." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60563.pdf.

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3

Pereira, Pedro Miguel Ribeiro. "Optimization based design of LC voltage controlled oscilators." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/11349.

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4

Chiang, Meei-Ling. "Design and optimization of low-voltage switched-capacitor systems /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/5918.

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5

Ziari, Iman. "Planning of distribution networks for medium voltage and low voltage." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/46684/1/Iman_Ziari_Thesis.pdf.

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Determination of the placement and rating of transformers and feeders are the main objective of the basic distribution network planning. The bus voltage and the feeder current are two constraints which should be maintained within their standard range. The distribution network planning is hardened when the planning area is located far from the sources of power generation and the infrastructure. This is mainly as a consequence of the voltage drop, line loss and system reliability. Long distance to supply loads causes a significant amount of voltage drop across the distribution lines. Capacitors

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Okubo, H., T. Otsuka, K. Kato, N. Hayakawa, and M. Hikita. "Electric field optimization of high voltage electrode based on neural network." IEEE, 1997. http://hdl.handle.net/2237/6881.

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7

Westerberg, Jens. "Optimering av ett mellanspänningsnät : Optimization of a medium voltage electricity grid." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-104889.

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EU vill genom att använda energin effektivare sänka sina energikostnader och minska sitt beroende av externa leverantörer av olja och gas vilket leder till att miljön skyddas. Av den anledningen krävs att energieffektiviteten ökas från produktion till den slutgiltiga konsumtionen inom EU. Jämtkraft är miljöcertifierat enligt ISO 14001 och arbetar därför årligen mot uppsatta miljömål. Detta examensarbete har studerat ett av dessa mål, möjligheten att minska överföringsförluster i ett av Jämtkrafts mellanspänningsnät. Området som examensarbetet baseras på är fördelningsstation Nälden FS23. Denna

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Panji, Arikson Heraldus. "Optimization of High Voltage Cable Dimension in Scania Electric Vehicle’s Systems." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278073.

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With the increasing demand for electrified vehicles, the demand for electrical components, including cables, is rising too. Thus, it is important to develop a method to optimize the cable sizing to ensure the cable is technically robust and economically efficient. The aim of this project is to study and evaluate different cables’ designs to find the optimum dimension for “high voltage” class (automotive voltage class B) cables in the electrical vehicle system. Three important technical aspects in evaluating the optimum cross-section area (CSA) are the ampacity of the cable, short-circuit withs

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9

Mijatovic, Aaron. "Solving optimal power flow with voltage constraints using MATLAB optimization toolbox." Thesis, Mijatovic, Aaron (2013) Solving optimal power flow with voltage constraints using MATLAB optimization toolbox. Other thesis, Murdoch University, 2013. https://researchrepository.murdoch.edu.au/id/eprint/21660/.

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This thesis set out to build a program in MATLAB that is designed to find an optimal power flow system on that minimizes the cost of generation while satisfying prescribed voltage constraints. Current optimal power flow solutions generally have three main issues with optimal power flow and this is the direction of most research in the area. The first issue is that the systems are not able to robustly provide a solution to the given information and are unable to find a stable solution. The second issue is that the optimal power flow may only find a local minimum solution rather than a globa

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10

Jalali, Mana. "Voltage Regulation of Smart Grids using Machine Learning Tools." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/95962.

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Smart inverters have been considered the primary fast solution for voltage regulation in power distribution systems. Optimizing the coordination between inverters can be computationally challenging. Reactive power control using fixed local rules have been shown to be subpar. Here, nonlinear inverter control rules are proposed by leveraging machine learning tools. The designed control rules can be expressed by a set of coefficients. These control rules can be nonlinear functions of both remote and local inputs. The proposed control rules are designed to jointly minimize the voltage deviation ac

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11

Choi, Kyu-Won. "Hierarchical power optimization for ultra low-power digital systems." Diss., Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04082004-180111/unrestricted/choi%5Fkyu-won%5F200312%5Fphd.pdf.

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Steiger, DeAnna Lee Borchardt. "Optimization and use of a voltage clamp assay with insect midgut tissues." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 0.38 Mb., 53 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:1435810.

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13

Bilgili, Hulusi Birol. "Pressure, Gas Ratio And Operation Voltage Optimization Of A Helium-neon Laser." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/3/12605917/index.pdf.

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Aim of this thesis is to investigate the optimum working parameters of a helium-neon laser. Partial pressure ratios, total pressures of the gases and voltage-current characteristics were studied. The analysis of the results includes the minor factors (impurity, volume, etc.) and their effects to main parameters (laser power, voltage, current). Tables, which were formed by measured optical parameters as wavelength and power, converted to graphs and from these graphs optimal working conditions for the laser are obtained.

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14

Kalyani, Radha Padma. "A nonlinear optimization approach for UPFC power flow control and voltage security." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.mst.edu/thesis/pdf/Kalyani_completeThesis_09007dcc80438f59.pdf.

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Thesis (Ph. D.)--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 29, 2007) Includes bibliographical references.

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Majzoub, Sohaib. "Energy optimization for many-core platforms under process, voltage and temperature variations." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/27902.

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Many-core architectures are the most recent shift in multi-processor design. This processor design paradigm replaces large monolithic processing units by thousands of simple processing elements on a single chip. With such a large number of processing units, it promises significant throughput advantage over traditional multi-core platforms. Furthermore, it enables better localized control of power consumption and thermal gradients. This is achieved by selective reduction of the core’s supply voltage, or by switching some of the cores off to reduce power consumption and heat dissipation. This d

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Islas, Michael. "EFFICIENCY IMPROVEMENT TECHNIQUES FOR HIGH VOLTAGE CAPACITOR CHARGING METHODS." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2969.

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The goal of this thesis is to design and fabricate a DC-to-DC converter for use in high-voltage capacitor charging applications. The primary objectives include increasing the efficiency and reducing the cost of traditional methods used for this application. Traditional methods were not designed specifically for high-voltage capacitor charging and were thus very primitive and exhibited lower efficiency. Prior methods made use of a high voltage power supply and a current limiting resistor or control scheme. The power supply would often only operate efficiently at a single voltage value and would

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17

Amarchinta, Sumanth. "High performance subthreshold standard cell design and cell placement optimization /." Online version of thesis, 2009. http://hdl.handle.net/1850/10740.

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18

Song, Yang. "Design of secondary voltage and stability controls with multiple control objectives." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29714.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Begovic, Miroslav; Committee Member: Deng, Shijie; Committee Member: Divan, Deepakraj; Committee Member: Harley, Ronald; Committee Member: Lambert, Frank; Committee Member: Shamma, Jeff. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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19

GREENHALGH, ANGELA BARBOSA. "VOLTAGE STABILITY ENHANCEMENT IN THE OPERATION OF POWER SYSTEMS THROUGH AN OPTIMIZATION MODEL." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1998. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=8943@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>Muito tem sido feito para que se possa entender os mecanismos que levam o sistema a uma situação de instabilidade de tensão e até mesmo ao colapso, assim como também para se suprir a necessidade de ferramentas analíticas capazes de prever e avaliar a proximidade do colapso de tensão em sistemas complexos, identificando as áreas susceptíveis à instabilidade de tensão. Uma vez detectada a inconveniente proximidade a uma condição de operação susceptível ao colapso de tensão, é necessária a identificação de grandezas-chave e

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20

Zelinskyi, S. A., Y. A. Maletin, N. G. Stryzhakova, S. A. Tychyna, and D. M. Drobny. "Electrochemical Behavior of Carbon Electrodes as a Key to Supercapacitor Optimization." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35501.

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The paper describes the electrochemical behavior of supercapacitor electrodes in both positive and negative ranges. This study has become possible due to development of a special reference electrode, which is stable in aprotic electrolytes like, e.g., 1.3 M Et3MeNBF4 in acetonitrile. Three-electrode measurements have enabled us to find the boundary potentials for various nanoporous carbon materials to be then used in the supercapacitor technology. This article describes how the electrode size can be optimized to get the maximum charge value in the double electric layer at the electrode-el

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21

Wang, Zhaoyu. "Implementation and assessment of demand response and voltage/var control with distributed generators." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53928.

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The main topic of this research is the efficient operation of a modernized distribution grid from both the customer side and utility side. For the customer side, this dissertation discusses the planning and operation of a customer with multiple demand response programs, energy storage systems and distributed generators; for the utility side, this dissertation addresses the implementation and assessment of voltage/VAR control and conservation voltage reduction in a distribution grid with distributed generators. The objectives of this research are as follows: (1) to develop methods to assist c

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Ibrahim, Sarmad Khaleel. "DISTRIBUTION SYSTEM OPTIMIZATION WITH INTEGRATED DISTRIBUTED GENERATION." UKnowledge, 2018. https://uknowledge.uky.edu/ece_etds/116.

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In this dissertation, several volt-var optimization methods have been proposed to improve the expected performance of the distribution system using distributed renewable energy sources and conventional volt-var control equipment: photovoltaic inverter reactive power control for chance-constrained distribution system performance optimisation, integrated distribution system optimization using a chance-constrained formulation, integrated control of distribution system equipment and distributed generation inverters, and coordination of PV inverters and voltage regulators considering generation cor

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23

Ye, Hanyu [Verfasser]. "Application of Non-Linear Microvaristor-Filled Materials in High-Voltage Devices and Algorithmic Optimization of High-Voltage Simulations Based on Surrogate Models / Hanyu Ye." Wuppertal : Universitätsbibliothek Wuppertal, 2015. http://d-nb.info/1071414860/34.

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Hung, Wei-Chen. "On-line Thermal Aware Energy Optimization via Dynamic Voltage Selection for Multiprocessor System-On-Chip." Thesis, Linköpings universitet, ESLAB - Laboratoriet för inbyggda system, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-65742.

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In recent decades, the use of electronic systems, especially embedded systems such as mobile phones has been expanding rapidly. Such products use minimal amount of materials, generate less waste and noise, save space, and are considered cost-effective and attractive. In such devices, consideration needs to be given to both high power density and high chip working temperature. According to the advanced scaling technology, leakage power becomes a major issue in terms of power consumption and this in turn influences temperature. Consequently, energy optimization is an important issue in the desi

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Terrin, Massimo. "Micro-CT for small animal imaging : Optimization of the tube voltage for low-contrast imaging." Thesis, KTH, Skolan för teknik och hälsa (STH), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176482.

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This master thesis evaluated the optimal tube voltage for low-contrast imaging of a micro-CT system (intended for small animal imaging) built at the School of Technology and Health (STH) of the Royal Institute of Technology (KTH). The main goal of this work was to calibrate the above-mentioned device (composed moreover by a Hamamatsu microfocus L10951-01 X-ray tube, a CMOS flat panel Hamamatsu C7942CA-22 and using a Cone-Beam CT reconstruction algorithm) for obtaining the best imaging of low-contrast structures. In order to do this, an analytical model, re-adapted from the previous state-of-t

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Svilan, Vjekoslav. "Analysis, optimization, and modeling of CMOS circuits incorporating variable supply voltage and adaptive body bias /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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27

Osgood, Karina, Larry Burke, Amy Webb, John Muir, Christina Dearstine, and Anthony Quaglietta. "OPTIMIZATION OF A MINATURE TRANSMITTER MODULE FOR WIRELESS TELEMETRY APPLICATIONS." International Foundation for Telemetering, 2002. http://hdl.handle.net/10150/606385.

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International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, California<br>M/A-COM, Inc. has previously developed a highly integrated transmitter chip set for wireless telemetry applications for the military L and S band frequencies and the commercial 2.4GHz ISM band. The original chip set is comprised of a voltage controlled oscillator (VCO), a silicon phase locked loop (PLL), and a family of power amplifiers (PA's). Using these components, M/A-COM has produced a miniature IRIG-compliant transmitter module, which has been fl

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Liang, Wen-Ting. "Optimal Planning of the Distribution Network with Distributed Generation." Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/15526.

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The deregulation of electricity market created a competitive market environment. For Distribution companies (DISCOs), how to maximize its profit is the primary purpose of this planning and operations. Therefore, to achieve the best economic and technical benefits, a DISCOs should determine where and how much DG units allow to install in the system. Distributed generation is a key component in the power market. There is a brief introduction of DG in this thesis including: the definition of DG, size and several often used DG types. The benefit and risk of DG which may bring to the power system a

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Constante, Flores Gonzalo Esteban. "Conservation Voltage Reduction of Active Distribution Systems with Networked Microgrids." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1531861356445195.

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Lindén, Annica, and Anna Ågren. "Load flow control and optimization of Banverket’s 132 kV 16 2/3 Hz high voltage grid." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-4583.

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<p>The purpose of this thesis was to investigate the possibility of power flow control, on a section of a railway grid fed by rotary converters, using an extra feeding line. Two possible solutions for the power flow control were examined. The first using a series reactance in connection to each converter station and the second by changing the tap changer level of the transformer between the converter station and the feeding line.</p><p>In the two models a distance, comparable to the distance between Boden and Häggvik, in Stockholm, was used. The simulations were performed using the software SI

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Okubo, Hitoshi, Fumihiro Endo, Naoki Hayakawa, Hiroki Kojima, and Yotaro Suzuki. "Optimization of Asset Management in High Voltage Substation Based on Equipment Monitoring and Power System Operation." IEEE, 2010. http://hdl.handle.net/2237/14536.

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32

Hannisdal, Erik Lundegaard. "Optimal Voltage Control of the Southern Norwegian Power Grid : Mixed Integer Nonlinear Programming (MINLP) for Control and Optimization of the High Voltage Southern Norwegian Power Grid." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13180.

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This thesis contains the synthesis, analysis and simulation results of an automatic optimal voltage controller for the Southern Norwegian power grid. Currently the high voltage power grid is controlled manually by operators switching control components. The optimal controller handles the voltage control of the system, as well as keeping the number of control actions to a minimum.The system model is derived from power system analysis. Due to a highy nonlinear system model and integer decission variables in on/off control components, the controller is based on mixed integer nonlinear programming

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Elahipanah, Hossein. "Design Optimization and Realization of 4H-SiC Bipolar Junction Transistors." Doctoral thesis, KTH, Elektronik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-211659.

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4H-SiC-based bipolar junction transistors (BJTs) are attractive devices for high-voltage and high-temperature operations due to their high current capability, low specific on-resistance, and process simplicity. To extend the potential of SiC BJTs to power electronic industrial applications, it is essential to realize high-efficient devices with high-current and low-loss by a reliable and wafer-scale fabrication process. In this thesis, we focus on the improvement of the 4H-SiC BJT performance, including the device optimization and process development. To optimize the 4H-SiC BJT design, a compr

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Pujary, Chirag Jayakar. "Investigation of Photodetector Optimization in Reducing Power Consumption by a Noninvasive Pulse Oximeter Sensor." Digital WPI, 2004. https://digitalcommons.wpi.edu/etd-theses/108.

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Noninvasive pulse oximetry represents an area of potential interest to the army, because it could provide cost-effective, safe, fast and real-time physiological assessment in a combat injured soldier. Consequently, there is a need to develop a reliable, battery-powered, wearable pulse oximeter to acquire and process photoplethysmographic (PPG) signals using an optimized sensor configuration. A key requirement in the optimal design of a wearable wireless pulse oximeter is low power management without compromising signal quality. This research investigated the advantage gained by increasing t

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Ülker, Muhammed Akif. "Balancing of Wind Power : Optimization of power systems which include wind power systems." Thesis, Högskolan på Gotland, Institutionen för kultur, energi och miljö, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hgo:diva-1335.

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In the future, renewable energy share, especially wind power share, in electricity generation is expected to increase. Due to nature of the wind, wind power generation pattern includes uncertainties which affects the energy prices in the electricity markets. New simulations are needed for efficient planning process for the resources in the power systems to address the uncertainties in demand, generation, legal, economical and technical limitations. In this study, the aspects of planning process for wind power generation is described and some example scenarios are implemented with the help of M

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Schöne, Robert, Thomas Ilsche, Mario Bielert, Daniel Molka, and Daniel Hackenberg. "Software Controlled Clock Modulation for Energy Efficiency Optimization on Intel Processors." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-224966.

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Current Intel processors implement a variety of power saving features like frequency scaling and idle states. These mechanisms limit the power draw and thereby decrease the thermal dissipation of the processors. However, they also have an impact on the achievable performance. The various mechanisms significantly differ regarding the amount of power savings, the latency of mode changes, and the associated overhead. In this paper, we describe and closely examine the so-called software controlled clock modulation mechanism for different processor generations. We present results that imply that th

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Rusek, Bartosz [Verfasser]. "Digital Modeling and Simulations of High Voltage Circuit Breaker Failures for Optimization of Sensor Technique / Bartosz Rusek." Aachen : Shaker, 2007. http://d-nb.info/1166512703/34.

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Törnqvist, Joacim. "Non-contact High Voltage Measurements: Modeling and On-site Evaluation." Thesis, Umeå universitet, Institutionen för fysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-59934.

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In the high voltage grid, voltage measurements are made in dedicated voltage-transformers. These devices are expensive and insulation failures could impact directly on the system, and even cause a power outage. A non-contact measurement technique, on the other hand, does not require a connection to the conductors, and the sensors can therefore be much cheaper by avoiding the need for high voltage insulation. A capacitive coupling between three measurement electrodes, close to ground, and a high voltage three phase conductor system is used to model and measure the electric field and thereby det

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Johari, Pritesh N. "Distributed Decap-Padded Standard Cell based On-Chip Voltage Drop Compensation Framework." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1235504983.

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Benoit, Clémentine. "Models for investigation of flexibility benefits in unbalanced low voltage smart grids." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT056/document.

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Cette thèse porte sur l'étude des apports de la flexibilité dans les réseaux Smart Grids Basse Tension. Ces derniers étant fondamentalement différents des réseaux Moyennes et Hautes Tensions, la gestion des flexibilités BT ne peut être calquée sur celle des réseaux MT et HT. De nouveaux moyens de contrôle doivent donc être développés. L'apport de ces flexibilité est analysé selon deux principaux bénéfices: la gestion opérationnelle la réduction de la pointe. Le premier apport porte donc sur le maintien des variables critiques à l'interieur des contraintes admissibles. Le but est de pouvoir gér

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Chandrappa, Kori Vinay Kumar, and Ganesan Gowtham Prasath Radhakrishnan. "Design optimization and testing of electrical connector for low voltage transmission cabinets : In collaboration with ABB AB Kabeldon." Thesis, Högskolan i Halmstad, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-40761.

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Abstract: This thesis work was a part of Halmstad University’s Mechanical Masterprogramme curriculum done in favour of ABB Alingsås. Our industrial partnerproduces and manufactures low voltage electrical distribution cabinets, connectorsand switch gears. This project is focused on specific electrical connector used inABB’s trademark cabinets. These electrical connectors serve as both the input and output points for thedistribution cabinets. The product under scope is an extension connector calledADI3M which is used in conjunction with the large sized cable connectors(AD300). This is a sequenti

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Usman, Muhammad. "Novel Methodologies for the Analysis and Management of Low Voltage Active Distribution Networks." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3424891.

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The continuous proliferation of renewable Distributed Energy Resources (DERs) in Medium Voltage (MV) and Low Voltage (LV) Distribution Networks (DNs) is playing a prominent role in reducing the carbon footprint of fossil-fuel-based electricity generation plants. However, the rapid integration of these resources has also changed the passive nature of these networks, and consequently, special attention is required to ensure their optimal, secure and reliable operation. Moreover, the installed DERs cannot be simply operated on the basis of a fit-and-forget policy due to the emergence of several t

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Hu, Manli [Verfasser]. "Modeling, optimization and control design for LCC resonant converter applied in very low frequency high voltage generator / Manli Hu." Paderborn : Universitätsbibliothek, 2014. http://d-nb.info/1049520149/34.

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Cons, Bacilla Ferreira Daniel Gebbran. "Coordination of Distributed Energy Resources using Distributed Optimal Power Flow." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/26155.

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Electrical power systems are deemed as one of the most complex systems mankind has built to date. Nonetheless, continuous changes on electricity generation and consumption are increasing the complexity of these systems. The uptake of behind-the-meter distributed energy resources (DER) (such as rooftop PV, battery systems, and flexible loads) requires a more precise coordination of all agents in the grid. This is particularly true for distribution systems, which are traditionally passive systems but require coordination under a high percentage of DER penetration. To perform such coordination, t

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Ivanenko, Yevhen. "Estimation of electromagnetic material properties with application to high-voltage power cables." Licentiate thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-64265.

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Efficient design of high-voltage power cables is important to achieve an economical delivery of electric power from wind farms and power plants over the very long distances as well as the overseas electric power. The main focus of this thesis is the investigation of electromagnetic losses in components of high-voltage power cables. The objective of the ongoing research is to develop the theory and optimization techniques as tools to make material choices and geometry designs to minimize the high-frequency attenuation and dispersion for HVDC power cables and the power losses associated with HVA

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Am, Sokchea. "Power modules design and optimization for medium power of MMC inverters : high insulation voltage gate driver system and 3D packaging." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAT095/document.

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Dans cette recherche, l'auteur met l'accent à la fois sur une optimisation de la conception pour une (MV-MMC: Medium Voltage Modular Multilevel Converter) utiliser comme un DC/AC ou AC/DC et à deuxième fois sur la grille pour les modules IGBT qui sont utilisés dans ce type d'application. Par exemple, les convertisseurs de MMC sont utilisés dans les systèmes d'alimentation des navires électriques avec les buses de moyenne tension de courant continu (en anglais: medium-voltage direct current (MVDC)). Pour une telle application, selon le document IEEE, la tension du bus DC peut être jusqu'à 35kV.

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Padilha, Lucas Nery. "Análise comparativa de estratégias para regulação de tensão em sistemas de distribuição de energia elétrica na presença de geradores distribuídos." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-10082010-141601/.

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Para que a instalação de geração distribuída possa de fato beneficiar a operação das redes de distribuição e de subtransmissão de energia elétrica, seus impactos técnicos devem ser cuidadosamente estudados, sobretudo em redes de distribuição, as quais foram inicialmente planejadas para operar com fluxo de potência unidirecional. Dentre esses impactos, a influência da geração distribuída na regulação da tensão é um aspecto de suma importância, pois está diretamente relacionada à qualidade do fornecimento da energia elétrica aos consumidores. Neste contexto, é importante conhecer e dispor de mei

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Hsiao, Yuan Chao, and 蕭元超. "Clock Skew Optimization for Voltage Variation." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/2j26u4.

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碩士<br>國立清華大學<br>資訊工程學系<br>104<br>Clock skew minimization has been extensively studied. However the problem is still difficult to resolve because clock skew needs to satisfy many different environmental corners. It has been known that optimizing skew at one corner may cause timing violation at another corner. Traditionally, skew optimization may require iterations of optimization among various corners which can take the very long time or even fail the constraints. We observe in several real designs that the clock skew problem can be easily solved if the library has special clock buffers. In thi

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Lee, Ying-Chen, and 李映辰. "Energy Optimization with Task scheduling and Voltage selection for Variable voltage Processors." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/28129232280966781322.

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碩士<br>國立東華大學<br>資訊工程學系<br>94<br>In this thesis, we propose a task scheduling and voltage allocation technique indynamically variable voltage processors, the purpose of which is minimization of processor energy consumption. Task scheduling is a technique to minimizepower consumption with task assignment and ordering. In the static voltage scheduling technique, the CPU time and supply voltage are assigned to tasksin order to minimize the total energy consumption. In this thesis, we formulate the problem as an integer linear programming problem with constraints on the dependency tasks. We extend

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Tsai, Chi-Chang, and 蔡繼章. "Optimization of a Steady-Voltage Piezoelectric Transducer." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/82332597116477168298.

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碩士<br>國立中山大學<br>海洋環境及工程學系研究所<br>100<br>Mechanical energy exists all over the place in our living, and vibration is the most common way of mechanical performance. Micro-electromechanical systems, the application which integrate techniques and combine different field of research, make it possible to convert vibration into electrical energy by using piezoelectric materials; moreover, it become a small piezoelectric power generator. The thesis set up an equivalent circuit model based on the principle of piezoelectric and cantilever mechanics for experimenting the model’s exactness; consequently, m

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