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Dissertations / Theses on the topic 'Compensation in active rectifiers'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Плахтий, Александр Андреевич. "Улучшение электромагнитной совместимости преобразователей тяговых подстанций постоянного с питающей и контактной сетями". Thesis, Украинский государственный университет железнодорожного транспорта, 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22054.

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Диссертация на соискание учѐной степени кандидата технических наук по специальности 05.09.12 – полупроводниковые преобразователи электроэнергии. – Национальный технический университет "Харьковский политехнический институт" – Харьков - 2016. Диссертация посвящена исследованию электромагнитных процессов в активных четырех-квадрантных выпрямителей с системами управления построенных на базе гистерезисной и широтно-импульсной модуляции, которые обеспечивают высокие показатели электромагнитной совместимости с питающей и контактной сетью. Выполнен анализ путей улучшения электромагнитной совместимост

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2

Плахтій, Олександр Андрійович. "Покращення електромагнітної сумісності перетворювачів тягових підстанцій постійного струму з живлячою та контактною мережами". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22051.

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Дисертація на здобуття вченого ступеня кандидата технічних наук за фахом 05.09.12 – напівпровідникові перетворювачі електроенергії. – Національний технічний університет "Харківський політехнічний інститут" – Харків - 2016. Дисертація присвячена дослідженню електромагнітних процесів в активних трифазних випрямлячах напруги з корекцією коефіцієнта потужності з системами автоматичного управління побудованих на базі гістерезисної на широтно-імпульсної модуляції, які забезпечують високі показники електромагнітної сумісності з живлячою та контактною мережами. Отримані регулювальні характеристики АВ

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3

Perera, Aravinda. "Virtual Synchronous Machine-based Power Control in Active Rectifiers for Micro Grids." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19202.

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This dissertation presents an analytical study on virtual synchronous machine-based power control in active rectifiers for micro grids supported by prototype modelling, simulation results and discussions.Popularity and demand of the distributed energy resources and renewable energy sources are increasing due to their economic and environmental friendliness. Concept of micro grid with an active rectifier (AR) interface has been found to be promising for smart integration of such distributed generation units. Having the presence of a synchronous generator (SG) in a micro grid introduces several

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4

Müller, Jonas [Verfasser]. "Active Toe-Angle Compensation / Jonas Müller." München : Verlag Dr. Hut, 2013. http://d-nb.info/1035049937/34.

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5

Bush, Robert Walton. "Design of an active acceleration compensation robot." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/19314.

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6

Anwar, Saeed. "Active Power Compensation of Microgrid Connected Systems." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1406653103.

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7

Carpenter, Paul Andrew. "Active filter current compensation for transmission optimisation." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/24291.

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This dissertation is based on the fact that any m-wire electrical system can be modelled as m-equivalent Thevenin voltages and impedances when viewed from any node. The dissertation describes how to calculate the optimal distribution of currents, so a specific amount of power can flow through and reach the network equivalent Thevenin voltages with minimal losses. The optimal current distribution method uses a recently patented method which calculates the optimal currents for each of the wires which are shown to be obtained from the Thevenin parameters and power flow at any instant in time at a

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8

Decker, Michael Wilhelm. "Active acceleration compensation for transport of delicate objects." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/21258.

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9

Pinfold, W. R. "An active motion compensation system using multiple bodies." Thesis, University of Strathclyde, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381330.

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10

Pomierski, Wojciech. "Position signal filtering for hydraulic active heave compensation system." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71095.

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In the paper a new position signal filtering method with position prediction is presented along with test results using a simulation tool. The complete active heave compensation system performance with input signal filtering is also shown. The control system uses an input acceleration signal taken from the motion reference unit, which usually contains noise that is not acceptable for the position controller. Currently, a Kalman filter is used which is okay to use for certain conditions. The filter works similarly to how it is used for autonomous applications where two input positions are neces

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11

Argillander, Joakim. "Active Phase Compensation in a Fiber-Optical Mach-Zehnder Interferometer." Thesis, Linköpings universitet, Informationskodning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-166419.

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This thesis investigates the phenomena of phase stability in a fiber-optical MZI (Mach-Zehnder Interferometer). The MZI is a key building block of optical systems for use in experiments with both continuous-wave light and with single photons. By splitting incoming light into two beams and allowing it to interfere with itself, an interference pattern is visible at the output, and this phenomena can be used to code information. This is the operating principle in, for example, QKD (Quantum Key Distribution) experiments. This interference requires coherence that is higher than the length differenc

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12

Raju, N. Ravisekhar. "A decoupled converter topology for active compensation of power systems /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/5847.

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13

Paschal, Matthew James 1964. "Compensation techniques for gain-bandwidth effects of active RC filters." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278081.

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The gain-bandwidth (GB) product of an operational amplifier (op amp) can effect the filtering characteristics of an infinite gain, multiple feedback, low pass active RC filter. In this thesis, the characteristics of ideal op amps and actual op amps are compared. The op amp is characterized by a dominant single pole, which is used to develop a third order voltage transfer function that describes the op amp's gain-bandwidth effects on the filter. Optimization theory is used to find adjusted values for the filter's elements to compensate for these GB effects. Of the sixty-five compensation design

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14

Granjon, Pierre. "Contribution à la compensation active des vibrations des machines électriques." Phd thesis, Grenoble INPG, 2000. http://www.theses.fr/2000INPG0139.

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Ce travail de recherche est consacré à l'élaboration d'une méthode de compensation active des vibrations d'une machine tournante électrique. Son originalité tient au fait que les enroulements statoriques sont alimentés par des courants de commande additionnels afin d'engendrer des forces radiales sur le stator. Celui-ci répond alors par des vibrations additionnelles qui interagissent avec les vibrations naturelles de la machine. Le but de ce système de contrôle actif est donc de calculer la valeur ”optimale” de ces courants, permettant de minimiser la puissance des signaux vibratoires au nivea

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Granjon, Pierre. "Contribution à la compensation active des vibrations des machines électriques." Phd thesis, Grenoble INPG, 2000. http://tel.archives-ouvertes.fr/tel-00101286.

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Ce travail de recherche est consacré à l'élaboration d'une méthode de compensation active des vibrations d'une machine tournante électrique. Son originalité tient au fait que les enroulements statoriques sont alimentés par<br />des courants de commande additionnels afin d'engendrer des forces radiales sur le stator. Celui-ci répond alors par des vibrations additionnelles qui interagissent avec les vibrations naturelles de la machine. Le but de ce<br />système de contrôle actif est donc de calculer la valeur ”optimale” de ces courants, permettant de minimiser la puissance des signaux vibratoire

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16

Liebig, Sebastian. "Optimization of rectifiers for aviation regarding power density and reliability." Doctoral thesis, Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-159936.

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The intentions of the so-called "More Electrical Aircraft" (MEA) are higher efficiency and lower weight. A main topic here is the application of electrical instead of hydraulical, pneumatical and mechanical systems. The necessary power electronic devices have intermediate DC-links, which are typically supplied by a three-phase system with active B6 and passive B12 rectifiers. A possible alternative is the B6 diode bridge in combination with an active power filter (APF). Due to the parallel arrangement, the APF offers a higher power density and is able to compensate for harmonics from several d

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Kevin, Bergman. "Design Active Rectifiers and Hybrid Energy Storage for A Farm of 10 Uppsala University Wave Energy Converter at Resonance." Thesis, Uppsala universitet, Institutionen för elektroteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-448948.

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18

Towliat, Abolhassani Mehdi. "Integrated electric alternators/active filters." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/268.

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In response to energy crisis and power quality concerns, three different methodologies to integrate the concept of active filtering into the alternators are proposed. Wind energy, due to its free availability and its clean and renewable character, ranks as the most promising renewable energy resource that could play a key role in solving the worldwide energy crisis. An Integrated Doubly-fed Electric Alternator/Active filter (IDEA) for wind energy conversion systems is proposed. The proposed IDEA is capable of simultaneous capturing maximum power of wind energy and improving power quality, whic

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Abolhassani, Mehdi Towliat. "Integrated electric alternators/active filters." Texas A&M University, 2004. http://hdl.handle.net/1969.1/268.

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In response to energy crisis and power quality concerns, three different methodologies to integrate the concept of active filtering into the alternators are proposed. Wind energy, due to its free availability and its clean and renewable character, ranks as the most promising renewable energy resource that could play a key role in solving the worldwide energy crisis. An Integrated Doubly-fed Electric Alternator/Active filter (IDEA) for wind energy conversion systems is proposed. The proposed IDEA is capable of simultaneous capturing maximum power of wind energy and improving power quality, whic

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20

Liebig, Sebastian. "Optimization of rectifiers for aviation regarding power density and reliability." Doctoral thesis, Universitätsverlag der Technischen Universität Chemnitz, 2014. https://monarch.qucosa.de/id/qucosa%3A20187.

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The intentions of the so-called "More Electrical Aircraft" (MEA) are higher efficiency and lower weight. A main topic here is the application of electrical instead of hydraulical, pneumatical and mechanical systems. The necessary power electronic devices have intermediate DC-links, which are typically supplied by a three-phase system with active B6 and passive B12 rectifiers. A possible alternative is the B6 diode bridge in combination with an active power filter (APF). Due to the parallel arrangement, the APF offers a higher power density and is able to compensate for harmonics from several d

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21

Stöppler, Guido [Verfasser]. "Active compensation of structural oscillations on high dynamic gantry machines / Guido Stöppler." Aachen : Shaker, 2005. http://d-nb.info/1186588349/34.

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22

Bach, Susan Elizabeth. "Chirp compensation in active mode-locked semiconductor diode laser using a DFB." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/36504.

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23

Ndiaye, Abdoul Ousmane. "Compensation active des ondulations de couple d'un moteur synchrone à aimants permanents." Besançon, 2002. http://www.theses.fr/2002BESA2038.

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Le travail effectué dans ce mémoire présente une méthode de compression des ondulations de couple d'un moteur synchrone à aimants permanents sans pièces polaires. L'objectif est l'amélioration de la qualité de la conversion électromécanique en minimisant les ondulations de couple et les vibrations. Le mémoire commence par une présentation des caractéristiques de couple du moteur synchrone étudié et les différentes causes des ondulations de son couple. Dans le deuxième chapitre, nous avons développé une méthode permettant, à partir du développement harmonique de la force électromotrice d'un mot

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24

da, Silva Neddef N. (Nedio). "Active phased array transceiver:an operational compensation for a multiple phase shifter system." Master's thesis, University of Oulu, 2018. http://jultika.oulu.fi/Record/nbnfioulu-201805151790.

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Abstract. The upcoming fifth-generation mobile technology relies on the implementation of beamforming techniques to fulfill the requirements proposed for the 2020 roll-out. One of the processes for stepping up this technique from the high-end applications to the telecommunication mass market is to be able to test, analyze and tune the product according to the specifications. After the manufacturing process, the phased antenna array, beamforming and beam-steering system must be tested against a prediction model, and corrected against deviations due to the uniqueness of the components, with the

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25

Sverdrup-Thygeson, Jørgen. "Modeling and Simulation of an Active Hydraulic Heave Compensation System for Offshore Cranes." Thesis, Norwegian University of Science and Technology, Department of Engineering Cybernetics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9531.

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<p>This thesis deals with the mathematical modeling of hydraulic heave compensation systems. When performing operations such as launch and recovery of remote operated vehicles and lowering subsea installation parts to the sea floor, it is important to attenuate unwanted load motion caused by elongation of the cable and heave motion of the vessel. Quite often, such operations must be put off while waiting for the weather to calm down. Extending the window of operations by developing equipment that can handle varying sea states can result in significant cost savings. There exist both electric a

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26

Spro, Ole Christian B. "Reactive Power Compensation and Active Filtering Capabilities of the Step-down AC Chopper." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23617.

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The Step-down AC Chopper (hereby referenced as "AC Chopper") has been presented in recent academic papers as a possible solution for reactive compensation. The goal of this project was to investigate and evaluate the topology to see if the praise could be justified. In addition, this project set a goal to take the research one step further by investigating if the uses of the AC Chopper could be expanded to include active filtering. The ability of the AC Chopper converter to produce harmonic current was investigated. This was the first step in developing the AC Chopper's active f

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27

Davies, David Bradley. "Analysis of active compensation for shock, vibration, and wind-up in disk drives." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13301.

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28

Soares, Guilherme Márcio. "Capacitance reduction in off-line led drivers by using active ripple compensation techniques." Universidade Federal de Juiz de Fora (UFJF), 2017. https://repositorio.ufjf.br/jspui/handle/ufjf/6044.

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Reyes-Moraga, Eduardo Felipe. "Predictive control of a direct series resonant converter with active output voltage compensation." Thesis, University of Nottingham, 2015. http://eprints.nottingham.ac.uk/31263/.

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Modern high power supplies are based on resonant converters in order to use high frequency reactive elements (for reduced size) without sacrificing converter efficiency. In an effort to achieve compact high power supplies, direct power converter topologies have been considered, since these are mainly characterised by their high power density. A direct resonant converter topology combines matrix converters with conventional resonant converters. This work focused on achieving high quality input/output power and high efficiency. Thus, this thesis presents the research on the control of a direct s

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30

Bó, Antônio Padilha Lanari. "Compensation Active de Tremblements Pathologiques des Membres Supérieurs via la Stimulation Electrique Fonctionnelle." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20162/document.

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Le tremblement, défini comme un mouvement rythmique involontaire, est un des mouvements anormaux les plus fréquents. Le tremblement n'est pas une pathologie mortelle, mais elle diminue souvent considérablement la qualité de vie de la personne. Les traitements efficaces ne sont pas encore disponibles, puisque les solutions pharmacologiques et chirurgicales souffrent encore de limitations en termes d'efficacité, de risques et de coûts. Une alternative consiste à utiliser des technologies d'assistance, tels que les exosquelettes ou la Stimulation Électrique Fonctionnelle (SEF).Néanmoins, la conce

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31

Ochs, David S. "Design of detailed models for use in fast aeroelastic simulations of permanent-magnet direct-drive wind turbines." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/15042.

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Master of Science<br>Department of Electrical and Computer Engineering<br>Ruth Douglas Miller<br>This thesis presents the design of two models for permanent-magnet direct-drive wind turbines. The models are of a 10 kW and a 5 MW wind turbine, which are representative of residential scale and commercial scale turbines respectively. The models include aerodynamic and mechanical simulations through the FAST software, as well as concurrent electrical simulations through the SimPowerSystems toolbox for MATLAB/Simulink. The aim is to provide wind turbine designers and researchers with a comprehensiv

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Reader, Daniel Martin. "Nonlinear Mr Model Inversion for Semi-Active Control Enhancement With Open-Loop Force Compensation." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/32660.

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The increased prevalence of semi-active control systems is largely due to the emergence of cost effective commercially available controllable damper technology such as Magneto-Rheological (MR) devices. Unfortunately, MR dampers exhibit highly nonlinear behavior, thus presenting an often over-looked complexity to the control system designer. With regards to controlling dampers, the well-known Skyhook Damping control algorithm has enjoyed great success for both fully active and semi-active control problems. The Skyhook design strategy is to create a control force that emulates what a passive

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Chen, Weiqun. "A Microcontroller Configured Active Analog Phase Shifter at 1.96GHz." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1273841250.

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34

Humphreys, Heather Celeste. "Modeling and compensation for biodynamic feedthrough in backhoe operation." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37254.

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Biodynamic feedthrough occurs in many types of operator controlled machines where the operator is a passenger and the motion of the controlled machine excites motion of the human operator, creating unwanted feedback. It is a significant cause for control performance degradation in backhoes. In this research, the problem of biodynamic feedthrough is investigated in a backhoe control system. For simplification, the system is limited to a single degree of freedom. Several controller based approaches are investigated to reduce cab vibration, while maintaining cylinder tracking performance. Th

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Prasai, Anish. "Direct dynamic control of impedance for VAR and harmonic compensation." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42816.

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Reactive power is critical to reliable operation of the modern AC power system. There is a plethora of motor-loads, transformers, and power-electronic loads connected to the power grid, which consume reactive power for normal operation. Transmission lines also consume reactive power when they are loaded above their surge impedance loading (SIL). Reactive power can exact opportunity cost due to reduced capacity of the lines to carry real power, which in turn lowers revenue. Most transmission owners (TOs) levy large penalties against load serving entities (LSEs), industrial facilities, and o

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Lowinsky, Luc Anthony. "Nouvelle topologie de Compensateur de Puissance Réactive pour les Réseaux Ferrés 25 kV / 50 Hz." Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0036/document.

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Le travail présenté dans ce mémoire s’est déroulé dans le cadre d’une collaboration entre le groupe Convertisseur Statique du laboratoire LAPLACE et le département " Installations Fixes de Traction Electrique " de la Direction de l’Ingénierie de la SNCF. Aujourd'hui, la majorité du trafic sur le réseau ferré monophasé 25 kV / 50 Hz est assurée par des locomotives équipées de redresseurs contrôlés à thyristors. Du fait de l'augmentation du trafic, l'utilisation de ces locomotives nécessite la mise en place de moyen de compensation de puissance réactive afin de maintenir la tension caténaire à u

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Dang, Anh X. H. "Theoretical and experimental development of an active acceleration compensation platform manipulator for transport of delicate objects." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/17277.

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Haryani, Nidhi. "Zero Voltage Switching (ZVS) Turn-on Triangular Current Mode (TCM) Control for AC/DC and DC/AC Converters." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/96397.

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One of the greatest technological challenges of the world today is reducing the size and weight of the existing products to make them portable. Specifically, in electric vehicles such as electric cars, UAVs and aero planes, the size of battery chargers and inverters needs to be reduced so as to make space for more parts in these vehicles. Electromagnetic Interference (EMI) filters take up a more than 80 % of these power converters, the size of these filters can be reduced by pushing the switching frequency higher. High frequency operation (> 300 kHz) leads to a size in reduction of EMI filters

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Khalsa, Harnaak Singh. "Generalised power components definitions for single and three-phase electrical power systems under non-sinusoidal and nonlinear conditions." Monash University. Faculty of Engineering. Department of Electrical and Computer Systems Engineering, 2008. http://arrow.monash.edu.au/hdl/1959.1/42420.

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There is a need for generalised definitions of electrical powers to provide a simultaneous common base for measurement, compensation, power quality and identification of source of distortion. The major problem area today is definitions of powers in the presence of harmonics and nonlinear loads in the electrical power system. In such a scenario, there is a problem to accurately measure especially reactive (nonactive) power. This is important for accurate energy billing. Another important area is the mitigation equipment used to remove unwanted polluting quantities from the power system. Defini

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Du, Toit Daniel Josias. "Predictive control of a series-input, parallel-output, back-to-back, flying-capacitor multilevel converter." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/18087.

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Thesis (MScEng (Electrical and Electronic Engineering))--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: This thesis investigates the viability of constructing a solid-state transformer (SST) with a series-input, parallel-output connection of full-bridge, three-level ying-capacitor converters. It focusses on the active recti er front-end of the SST which is used to control the input current to be sinusoidal and in-phase with the sinusoidal input voltage. A stack of two converters are built and tested. The input current, as well as the ying capacitor voltages of the two active rect

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Ingram, David. "An Evaluation of Harmonic Isolation Techniques for Three Phase Active Filtering." Thesis, University of Canterbury. Electrical and Computer Engineering, 1998. http://hdl.handle.net/10092/1260.

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Recent advances in power electronics have lead to the wide spread adoption of advanced power supplies and energy efficient devices. This has lead to increased levels of harmonic currents in power systems, degrading the performance of electrical machinery and interfering with telecommunication services. Active filters provide a solution to these problems by compensating for the distorted currents drawn by non-linear loads. Optimal methods for controlling these active filters have been determined by computer simulation and experimental implementation. Methods used for isolating the harmonic cont

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Schneider, Jason C., and Neil L. Ebuen. "The potential effects of the Defense Business Board military compensation task groups 2011 recommendations on active-duty service member retirement." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/27899.

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Outstanding Thesis<br>Approved for public release; distribution is unlimited<br>In July 2011, the Defense Business Board (DBB) made recommendations to the Secretary of Defense for modernizing the military retirement system. If implemented, the plan would significantly modify military retirement as it has existed since its inception, shifting it from a defined benefit plan to a defined contribution plan. In this study, we compared the current defined benefit retirement plan to a hypothetical, retrospective defined contribution plan using the constraints proposed by the Defense Business Board Mi

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LENTINI, LUIGI. "Design, Test and Identification of an Active Aerostatic Thrust Bearing with a Compliant Mechanism and Piezo Actuator." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2670377.

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Aerostatic thrust bearings are currently used in applications where high accuracy is required, e.g., in machine tools, measuring instruments, manufacturing and medical equipment. Their appeal is due to the absence of contact between their moving and stationary parts, which ensures relative motions characterised by low friction, low wear and limited heat generation. However, in some operating conditions, these systems may present low specific stiffness and be subject to instability. This thesis presents the design, modelling and testing of an actively compensated aerostatic thrust bearing. A s

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Du, Toit Delyno Johannes. "ATM cash management for a South African retail bank." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17977.

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Thesis (MScEng)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: Cash can be seen as a fast moving consumer good. Approaching cash as inventory within the ATM cash management environment of a South African retail bank, provided the opportunity to apply well known industrial engineering techniques to the financial industry. This led to the application of forecasting, inventory management, operational research and simulation methods. A forecasting model is designed to address the multiple seasonalities and calendar day effects that is prevalent in the demand for cash. Special days, e

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CASTELLANOS, MOLINA LUIS MIGUEL. "Offset-Free Model Predictive Control for Active Magnetic Bearings." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2843984.

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Xue, Kai. "Modal filtering for active control of floor vibration under impact loading." Kyoto University, 2018. http://hdl.handle.net/2433/232024.

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Wang, Lei. "Design and implementation of a three-phase three-wire thyristor controlled LC-coupling hybrid active power filter with low dc-link voltage and wide compensation range." Thesis, University of Macau, 2017. http://umaclib3.umac.mo/record=b3691876.

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Zafeiropoluos, Andreas. "An MMC-based topology with Dual-Active-Bridge power channels for load balancing in 50 Hz-railway applications." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-201656.

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The purpose of this thesis report is to investigate challenges related to railway electrification. Inac-railway systems, trains are most often single-phase loads, which can create significantunbalances in the grid, when fed directly from two adjacent phases. To enhance power quality atthe railway feeding point, one alternative is to design the system such as the power is fed to thecatenary through Static Frequency Converters (SFCs), which can be a costly solution. Anotheroption is to use Static Compensators (STATCOMs) in shunt connections, handling only theunbalanced amount of power, in order

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Barka, Noureddine. "Développement d'un système de mesure en temps réel des erreurs dans les machines-outils à axes multiples pour une compensation active." Thèse, [Rimouski, Québec] : Université du Québec à Rimouski, 2005.

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Thèse (M. Sc.) - Université du Québec à Rimouski, 2005.<br>Titre de lʹécran-titre (visionné le 31 août 2006). Mémoire présenté à l'Université du Québec à Rimouski comme exigence partielle du programme de maîtrise en ingénierie. Comprend un résumé. CaQRU CaQRU CaQRU Bibliogr.: f. 97-99. Paraît aussi en éd. imprimée. CaQRU

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Mérad, Manelle. "Investigations on upper limb prosthesis control with an active elbow." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066615/document.

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Les progrès de la mécatronique ont permis d’améliorer les prothèses du membre supérieur en augmentant le catalogue des mouvements prothétiques. Cependant, un fossé se creuse entre les capacités technologiques de la prothèse et leur méthode de contrôle. La commande myoélectrique, qui est la méthode la plus répandue, reste complexe, notamment pour les personnes amputées au niveau trans-huméral qui peuvent avoir un coude actif en plus de la main et du poignet motorisés. Une approche intéressante consiste à utiliser la mobilité du membre résiduel, présente chez la plupart des amputés trans-humérau

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