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Дисертації з теми "Thyrister control"

Автор: Grafiati
Опубліковано: 10 грудня 2022
Оновлено: 28 січня 2023

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1

張華 and Hua Zhang. "Digital vector control of forced-commutated cycloconverter drives." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31234574.

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2

Zhang, Hua. "Digital vector control of forced-commutated cycloconverter drives /." [Hong Kong] : University of Hong Kong, 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1594847X.

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3

Fan, Lingling. "Robust decentralized control of power systems through excitation systems and thyristor controlled series capacitors." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=2242.

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Анотація:
Thesis (Ph. D.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains x, 121 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 99-103).
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4

Ängquist, Lennart. "Synchronous Voltage Reversal Control of Thyristor Controlled Series Capacitor." Doctoral thesis, KTH, Electrical Systems, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3396.

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Анотація:
<p>Series compensation of transmission lines is an effectiveand cheap method of improving the power transmission systemperformance. Series capacitors virtually reduces the length ofthe line making it easier to keep all parts of the power systemrunning in synchronism and to maintain a constant voltage levelthroughout the system. In Sweden this technology has been inuse since almost 50 years.</p><p>The possibility to improve the performance of the ACtransmission system utilizing power electronic equipment hasbeen discussed a lot since about ten years. Some newsemiconductor based concepts have be
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5

Genc, Murat. "Design And Digital Implementation Of Thyristor Controlled Reactor Control." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/3/12609184/index.pdf.

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Анотація:
In this research work, the control system of 16 MVAr, 13.8 kV TCR will be designed and digitally implemented. A Real-Time Control System (NI CompactRIOTM Reconfigurable I/O) and a Digital Platform (NI LabVIEWTM Gcode) are used in the digital implementation of TCR control system. The digital control system is composed of reactive power calculation, firing angle determination and triggering pulse generation blocks. The performance of control system will be tested in the field. The simulation results will also be compared with test data.
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6

Kite, David John. "Improved current control in thyristor drives for d.c. machines." Thesis, University of Bath, 1985. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767552.

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Анотація:
The accurate and versatile control of a direct current machine's speed using a thyristor converter has led to its use for many industrial applications. However, as will be demonstrated, the current gain characteristic of such a device is not linear and under certain operating conditions can lead to an unacceptable degradation in performance. In order to develop a method of adaptive control that can compensate for the gain changes, the key features and theory of phase controlled thyristor converters are described and used to develop a digital computer simulation of a single phase converter. The
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7

Barnes, M. J. "The prediction and control of transients in thyristor valves." Thesis, Aston University, 1985. http://publications.aston.ac.uk/15140/.

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Анотація:
This thesis describes an investigation of methods by which both repetitive and non-repetitive electrical transients in an HVDC converter station may be controlled for minimum overall cost. Several methods of inrush control are proposed and studied. The preferred method, whose development is reported in this thesis, would utilize two magnetic materials, one of which is assumed to be lossless and the other has controlled eddy-current losses. Mathematical studies are performed to assess the optimum characteristics of these materials, such that inrush current is suitably controlled for a minimum s
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8

Mahmoud, M. El-S. "A microprocessor thyristor-controlled DC drive incorporating regenerative braking." Thesis, University of Bradford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355222.

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9

何沛德 and Pui-tak Ho. "Control and operation of high-performance thyristor-controlled-reactor(TCR) compensators." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1988. http://hub.hku.hk/bib/B31231160.

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10

Uz, Eda. "Design And Implementation Of Thyristor Switched Shunt Capacitors." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611616/index.pdf.

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Анотація:
This research work deals with the analysis, design and implementation of thyristor switched plain capacitor banks and thyristor switched shunt filter banks. Performances of various thyristor switched capacitor (TSC) topologies are also investigated by simulations. The theoretical findings have been verified by carrying out experimental work on two prototypes implemented within the scope of this research work, one is a wye-connected laboratory prototype and the other is a delta-connected application prototype integrated to some of the SVCs existing in Turkish Coal Enterprise s Plants. The advan
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11

Smiai, Mohamed Salah. "Speed control of wound-rotor induction motor using thyristors to control rotor external resistance." Thesis, University of Bradford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253409.

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12

Leung, Chiu Hon. "The output frequency spectrum of a thyristor phase-controlled cycloconverter using digital control techniques." Thesis, University of Plymouth, 1985. http://hdl.handle.net/10026.1/2261.

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Анотація:
The principle of operation dictates that the output of a cycloconverter contains some harmonics. For drive applications, the harmonics at best increase losses in the motor and may well cause instability. Various methods of analysing the output waveform have been considered. A Fortran 77 program employing a modified Fourier series, making use of the fact that the input waveforms are sinusoidal, was used to compute the individual harmonic amplitudes. A six pulse three phase to single phase cycloconverter was built and a Z-80 microprocessor was used for the control of firing angles. Phase locked
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13

Tang, C. K. K. "Performance studies of a thyristor controlled reactor for arc furnace compensation using computer and laboratory models." Thesis, University of Liverpool, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381290.

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14

Johansson, Nicklas. "Control of Dynamically Assisted Phase-shifting Transformers." Licentiate thesis, Stockholm : Elektrotekniska system, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4653.

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15

Engel, Stefan P. [Verfasser]. "Thyristor-Based High-Power On-Load Tap Changers : Control under Harsh Load Conditions / Stefan P. Engel." Aachen : Shaker, 2017. http://d-nb.info/1124366547/34.

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16

Poyiadjis, Soteris. "A New Cell Bypass Arrangement and Control for Modular Multilevel Converters based on Thyristor Forced Commutation Circuit." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-201660.

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Анотація:
HVDC transmission lines are a competitive and in some cases are proven to bea superior choice compared to AC transmission applications. Suitable convertershave been developed for that matter where Modulär Multilevel Converters (MMC)are highly preferred due to their low losses, no filtering requirementsand direct andfast control of AC and DC side. However, the overall eciency of the converteris higher than of a six pulse voltage source converter, it is still lower than the linecommutated converter type.In this master thesis an attempt to decrease the conduction losses of the MMC isinvestigated.
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17

Levon, Elena. "Multi-loop Control Systems of Compensators for Powerful Sounding Pulses Generators." Thesis, Institute of Electrical and Electronics Engineers, 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/44052.

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Анотація:
Construction principles of multi-loop control systems of compensators for powerful sounding pulses generators are presented. A method for controlling a compensating system using fuzzy logic and forecast control ideas is described. Proposed compensating system is able to solve different problems: reactive power compensation, harmonic elimination. The system is based on a combination of a thyristor compensator and an active power filter. Some practical results with Matlab-Simulink are presented to check the proposed control performance.
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18

Sechilariu, Manuela. "Utilisation des réseaux de Petri colorés et temporisés pour la modélisation et la simulation des montages redresseurs et onduleurs." Angers, 1993. http://www.theses.fr/1993ANGE0012.

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Анотація:
Ce mémoire montre la faisabilité d'une technique de commande des convertisseurs statiques, utilisant les réseaux de Petri (RDP). L'originalité de ce travail réside dans l'utilisation de RDP colorés et temporisés pour la modélisation. Deux exemples sont retenus. Le modèle du redresseur triphasé à thyristors est présenté de manière que l'on puisse analyser les valeurs de l'angle de retard d'allumage ; des temporisations de durées variables permettent de simuler la variation de la tension redressée. Le modèle de l'onduleur autonome évolue dynamiquement à la fréquence souhaitée ; le changement de
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19

Murray, Nicholas John. "Flexible Power control in Large Power Current Source Conversion." Thesis, University of Canterbury. Electrical and Computer Engineering, 2008. http://hdl.handle.net/10092/2610.

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Анотація:
This thesis describes a new concept, applicable to high-power current-sourced conversion (CSC), where a controllable firing-angle shift is introduced between series and parallel converters to enable independent active and reactive power control. The firing-shift concept solves a difficult problem, by giving thyristor based CSCs the control flexibility of pulse-width modulated (PWM) converters, but without a loss in efficiency or rating. Several configurations are developed, based on the firing-shift concept, and provide flexible, efficient solutions for both very high power HVDC transmission, and very
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20

Johansson, Nicklas. "Aspects on Dynamic Power Flow Controllers and Related Devices for Increased Flexibility in Electric Power Systems." Doctoral thesis, KTH, Elektriska maskiner och effektelektronik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37823.

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Анотація:
This thesis studies different aspects of Flexible AC Transmission System (FACTS) devices which are used to improve the power transfer capability and increase the controllability in electric power systems. In the thesis, different aspects on the usage and control of Dynamic Power Flow Controllers (DPFC) and related FACTS devices are studied. The DPFC is a combination of a Phase Shifting Transformer (PST) and a Thyristor Switched Series Capacitor (TSSC)/Thyristor Switched Series Reactor (TSSR). The thesis proposes and studies a new method, the Ideal Phase-Shifter (IPS) method, for selection and
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21

Večerník, Jan. "Regulátor pohonu opony." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217701.

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Master's thesis describes and proposes solutions for a given problem of a drive in theater curtain DS Krakonoš - Vysoké nad Jizerou using modern microcontroller with voltage transducer.. There is given a detailed analysis of the problem, including the mathematical description of the entire system, then design and its subsequent implementation. The goal of this work is designed to apply a device designed to the engine, which moves theater curtain.
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22

Grimoni, Jose Aquiles Baesso. "Análise de compensadores de reativos e simulação ciclo a ciclo de um reator controlado a tiristores." Universidade de São Paulo, 1994. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-30062017-141238/.

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Анотація:
Este trabalho analisa a necessidade da aplicação dos compensadores estáticos de reativos em sistemas elétricos industriais e em sistemas de potência. Vários tipos de compensadores de reativos são apresentados e também é feita uma comparação entre eles. O trabalho está centralizado no estudo dos compensadores estáticos tiristorisados, principalmente o Reator Controlado a Tiristores (RCT) e o Capacitor Chaveado a Tiristores (CCT). São discutidas as influências de alguns parâmetros nas formas de onda do RCT. É feita a dedução das equações das componentes harmônicas de corrente e tensão do RCT. Sã
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23

Xie, Hailian. "On Power-system Benefits, Main-circuit Design, and Control of StatComs with Energy Storage." Doctoral thesis, Stockholm : Skolan för elektro- och systemteknik, Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10302.

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24

Hadjikypris, Melios. "Supervisory control scheme for FACTS and HVDC based damping of inter-area power oscillations in hybrid AC-DC power systems." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/supervisory-control-scheme-for-facts-and-hvdc-based-damping-of-interarea-power-oscillations-in-hybrid-acdc-power-systems(cc03b44a-97f9-44ec-839f-5dcbcf2801f1).html.

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Анотація:
Modern interconnected power systems are becoming highly complex and sophisticated, while increasing energy penetrations through congested inter-tie lines causing the operating point approaching stability margins. This as a result, exposes the overall system to potential low frequency power oscillation phenomena following disturbances. This in turn can lead to cascading events and blackouts. Recent approaches to counteract this phenomenon are based on utilization of wide area monitoring systems (WAMS) and power electronics based devices, such as flexible AC transmission systems (FACTS) and HVDC
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25

LIMA, Nelio Neves. "Operação do gerador de indução em conexão assíncrona com a rede monofásica." Universidade Federal de Goiás, 2010. http://repositorio.bc.ufg.br/tede/handle/tde/999.

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Анотація:
Made available in DSpace on 2014-07-29T15:08:24Z (GMT). No. of bitstreams: 1 Dissertacao Nelio Neves.pdf: 3219323 bytes, checksum: 942eb8a565f853723f37d1f40fe87298 (MD5) Previous issue date: 2010-03-26<br>This text reports the effort to present a proposal of a power generation system based on cage rotor Induction Electrical Machine associated to a sinusoidally-switched PWM (Pulse Width Modulation) frequency converter responsible for maintaining constant 60 Hz frequency at the generator leads. DC side at the PWM converter is nonsynchronously connected to a single-phase utility line by means o
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26

Kreikebaum, Frank Karl. "Control of transmission system power flows." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50392.

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Анотація:
Power flow (PF) control can increase the utilization of the transmission system and connect lower cost generation with load. While PF controllers have demonstrated the ability to realize dynamic PF control for more than 25 years, PF control has been sparsely implemented. This research re-examines PF control in light of the recent development of fractionally-rated PF controllers and the incremental power flow (IPF) control concept. IPF control is the transfer of an incremental quantity of power from a specified source bus to specified destination bus along a specified path without influenc
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27

Depernet, Daniel. "OPTIMISATION DE LA COMMANDE D'UN ONDULEUR MLI A TROIS NIVEAUX DE TENSION POUR MACHINE ASYNCHRONE." Phd thesis, Université de Reims - Champagne Ardenne, 1995. http://tel.archives-ouvertes.fr/tel-00828554.

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Анотація:
Les progrès réalisés ces dernières années dans la commande des onduleurs MLI à deux niveaux de tension pilotant en vitesse variable des machines asynchrones de moyenne et grande puissance ont permis d'améliorer sensiblement les performances. L'utilisation récente des onduleurs MLI à trois niveaux de tension est très prometteuse en raison de la capacité de cette nouvelle structure d'onduleur à améliorer la qualité des courants dans la machine et à étendre sa commande à des domaines de puissance supérieurs à 2 MW. Nous définissons le principe de calcul et les limites de validité des principales
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28

Laamiri, Saber. "Commande des systèmes électriques : machines synchrones et convertisseurs multi-niveaux." Thesis, Ecole centrale de Nantes, 2019. http://www.theses.fr/2019ECDN0031/document.

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Анотація:
Ce travail de thèse a pour objectifs l'observation et la commande des convertisseurs multi-niveaux et la commande des machines synchrones. Pour satisfaire le besoin des clients de l’entreprise GS Maintenance et pour des raisons de maintenance, une commande en courant de la machine synchrone est implémentée expérimentalement. L'accent est mis sur le démarrage de ce type de machines car durant ces phases de fonctionnement (basses vitesses), les forces électromotrices sont faibles pour assurer la commutation des thyristors de l'onduleur. Ensuite, l'entreprise a proposé à ses clients un convertiss
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29

Bonnin, Xavier. "Alimentation électrique des dispositifs de décharge à barrière diélectrique." Phd thesis, Toulouse, INPT, 2014. http://oatao.univ-toulouse.fr/13645/1/bonnin.pdf.

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Анотація:
Les dispositifs DBD se répandent dans un grand nombre d’applications industrielles. Utilisés depuis plus de 150 ans pour la production d’ozone afin de décontaminer l’eau à grande échelle, ils ont depuis la fin du XXème siècle investi les domaines du traitement de surface polymère, du dépôt de couche mince sur substrat et de l’émission lumineuse pour la décontamination ainsi que la médecine. Ces dispositifs sont mis en oeuvre avec un générateur électrique dont les caractéristiques impactent fortement la qualité de la décharge. Ce travail s’inscrit en partie dans le cadre du développement d’une
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30

Reymond, Cédric. "Conception d'une structure innovante de convertisseur AC-DC de type Totem-pole avec correction du facteur de puissance : application aux chargeurs de batteries des véhicules électriques." Thesis, Tours, 2019. http://www.theses.fr/2019TOUR4015.

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Анотація:
Les gouvernements responsabilisent les états sur l’environnement avec la mise en œuvre de solution pour décarboner la production de l’électricité. En 2020, 20 % de l’énergie produite sera générée par les énergies renouvelables. Cependant ces énergies vertes sont intermittentes et nécessitent une capacité de stockage importante pour la gestion locale des « smart grids ». Cette solution pose deux nouvelles problématiques : la nécessité d’un convertisseur bidirectionnel et la gestion des courants d’appel. Pour faciliter l’étude de ces problématiques, la thèse propose de lier au travers d’un bilan
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31

Lott, Christophe. "Filtrage actif parallèle des harmoniques de courant sur des réseaux industriels : étude théorique et réalisation d'une maquette à GTO." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL116N.

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Анотація:
Les convertisseurs statiques absorbent des courants non sinusoïdaux et consomment généralement de la puissance réactive. Ces deux phénomènes nouveaux sur le réseau ont engendré un certain nombre de perturbations allant du dysfonctionnement d'un équipement jusqu'à la destruction d'une partie des équipements connectés. Dans cette thèse, les problèmes liés aux perturbations générées par les convertisseurs statiques ont été étudiés et des solutions visant à les éliminer ont été présentées. Elles portent sur les méthodes de filtrage passif et actif. Quelques éléments de définition et de dimensionne
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32

Гаврилюк, Ігор Миколайович, та Havryliuk Ihor. "Розробка проекту лінії електропередачі з вставкою постій¬ного струму". Master's thesis, ТНТУ імені Івана Пулюя, 2019. http://elartu.tntu.edu.ua/handle/lib/29562.

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Анотація:
В дипломній роботі виконано дослідження можливих варіантів об’єднання несинхронних електроенергетичних систем та систем з різними стандартами регулювання частоти. Метою роботи є розробка лінії електропередачі «Ковель – Хелм» з вставкою постійного струму для продажу електроенергії з України у Польщу. Об’єкти, аналогічні спроектованому у даному проекті, можна впровад¬жувати і в інших елек-тричних мережах, що дозволить значно зменшити розміри синхронних мереж змінного струму, запобігти або обмежити каскадні відключення, підвищити коефіцієнт корисної дії електромереж і надійність електроенергети
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33

Anele, Amos Onyedikachi. "Nonlinear modelling and control of a thyristor-controlled series capacitor for power flow enhancement." 2012. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000968.

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Анотація:
M. Tech. Electrical Engineering.<br>Discusses energy as the basic necessity for the economic development of a country. Many functions necessary to present-day living grind to halt when the supply of energy stops. Energy exists in different forms in nature but the most important form is the electrical energy. Therefore, enhancing power flow in transmission systems is important for efficient power supply because a modern-day society requires a large amount of electrical energy for domestic, commercial and industrial purposes. Among the various means of enhancing power flow in transmission system
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34

Mazibuko, Ronnie H. "Design and implementation of a thyristor controlled series capacitor for research laboratory application." Thesis, 2003. http://hdl.handle.net/10413/4157.

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Анотація:
The power transfer capability of a transmission line is determined by the magnitude of the voltage at each end of the line, angle difference of these voltages and the impedance of the line. This impedance is mainly inductive. Traditionally, fixed series capacitor banks have been used for series compensation. However, due to instability problems associated with loading transmission line close to their thermal limits, researchers have looked at other alternatives to line compensation by static devices such as fixed series capacitors. Flexible AC Transmission Systems (FACTS) has allowed power uti
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35

Pandit, Nakul. "Simulation and control of thyristor controlled series capacitors." 2007. http://proquest.umi.com/pqdweb?did=1240710321&sid=10&Fmt=2&clientId=39334&RQT=309&VName=PQD.

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Анотація:
Thesis (M.S.)--State University of New York at Buffalo, 2007.<br>Title from PDF title page (viewed on July 06, 2007) Available through UMI ProQuest Digital Dissertations. Thesis adviser: Safiuddin, Mohammed. Includes bibliographical references.
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36

Deacon, Johan Abraham. "Drywingselektroniese mutators met siklies-resonante gapsers en hekafskakelbare tiristors." Thesis, 2014. http://hdl.handle.net/10210/12202.

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M.Ing. (Electrical & Electronic Engineering)<br>The gate turn-off thyristor is discussed as a power switch. A gate-firing circuit for gate turn-off thyristors in the range 10 A - 300 A was developed. The resonant dc-link as snubber for voltage fed inverters is discussed. On considering various factors, the gate turn-off thyristor was chosen as switching component in the inverter. The problems that deve16ped with the use of gate turn-off thyristors in resonant dc-link inverters w,re discussed. Which lead to the development of a storage time compensator for gate turn-off thyristors. Attention wa
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37

Vermooten, Dan. "Die ontwikkeling en eienskappe van 'n tiristorbeheerde reaktiewe driefase netwerk." Thesis, 2014. http://hdl.handle.net/10210/10102.

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M.Ing.<br>This dissertation describes the development and characteristics of a thyristor controlled reactive three phase network which is used for the compensation of reactive power in a power network. The problem of distortion in power networks is illustrated and the development of a thyristor controlled reactive three phase network is motivated. The considerations that were taken into account in the design of the network are explained and the experimental setup is evaluated. A computer simulation was done to verify a single phase model of the reactive power network. The driving function in p
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Pillay, Anand. "A DSP-based digital controller for a thyristor controlled series capacitor." Thesis, 2007. http://hdl.handle.net/10413/2245.

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The power transfer capability of long high voltage transmission lines is often limited by the inductive reactance of the transmission line. Series compensation is in some instances employed to lower the inductive reactance of the transmission line which increases the transmission line power transfer capability. Numerous methods have been employed to provide series compensation of a transmission line. One such method is to use a thyristor controlled series capacitor (TCSC). A thyristor controlled senes capacitor (TCSC) belongs to the flexible altemating CUlTent transmission systems (FACTS) fami
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39

Subhash, Sujatha. "Investigations On The Application Of Thyristor Controlled Series Compensators In Power Systems." Thesis, 1999. http://etd.iisc.ernet.in/handle/2005/1636.

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40

Kabiri, Khosro. "Analysis and control of subsynchronous resonance in the presence of thyristor controlled series compensation." Thesis, 2004. http://hdl.handle.net/2429/16053.

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In this thesis, the problem of subsynchronous mechanical oscillations in the shaft assembly of a turbo-generator with its steam turbine stages is studied, when the generator is connected to a Thyristor Controlled Series Capacitor (TCSC) compensated transmission line. The first three-phase thyristor controlled series capacitor was installed in 1992. The usefulness of this device for mitigating subsynchronous resonance has been established. There are, however, issues remaining to be investigated. A point of contention is the nature of the behaviour of TCSC towards subsynchronous frequencie
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41

Mazur, Garry Brian. "Control of power system harmonics with firing angle modulation of a thyristor controlled reactor." 1986. http://hdl.handle.net/1993/15414.

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42

Li, Hsing-Chieh, and 李興傑. "A Study of Thyristor-Controlled Series Capacitor (TCSC)on Control Performance of Induction Machines." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/x7up62.

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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>90<br>Abstract This thesis investigates the application of variable-impedance characteristics of thyristor-controlled series capacitor (TCSC) of flexible AC transmission systems (FACTS) on control performance of three-phase induction machines. Both qd0-axis and three-phase abc frame induction-machine models are respectively employed to study steady-state and dynamic characteristics of the studied machine under different operating conditions. Regarding to speed control performance of an induction motor and active-power control of a grid-connected induction generato
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43

Murray, Nick. "Flexible power control in large power current source conversion : a thesis presented for the degree of Doctor of Philosophy in Electrical and Computer Engineering at the University of Canterbury, Christchurch, New Zealand /." 2008. http://hdl.handle.net/10092/2610.

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44

Gumunyu, Tonderayi. "Use of Thyristor Controlled Series Capacitors (TCSCs) to enhance power system transient stability and their possible application on the South African Grid." Thesis, 2015. http://hdl.handle.net/10539/22693.

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This research report is submitted as a partial fulfilment of the requirements for a Master of Science degree in Electrical Engineering (Power).<br>Thyristor Controlled Series Capacitors (TCSCs) are FACTS devices which incorporate power-electronic-based and other static controllers to enhance controllability and increase power transfer capability. This research investigated the possibility of applying TCSCs on the South African transmission network, in particular application on long transmission lines connecting bulk thermal generators in the northern part of South Africa to load centres
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45

Кбайдат, Імад. "Дослідження та розробка системи керування електричним приводом". Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/4863.

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Кбайдат Імад. Дослідження та розробка системи керування електричним приводом : кваліфікаційна робота магістра спеціальності 153 "Мікро- та наносистемна техніка" / наук. керівник З. А. Ніконова. Запоріжжя : ЗНУ, 2020. 105 с.<br>UA : Розроблено привід подачі робочого інструмента металообро-бних верстатів, який має повністю цифрове рішення системи авто-матичного регулювання і системи імпульсно-фазового керування, що дозволило збільшити функціональність.<br>EN : The drive of giving of the working tool of metalworking machines which has completely digital decision of system of automatic control an
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Banerjee, Debmalya. "Load Commutated SCR Current Source Inverter Fed Induction Motor Drive With Sinusoidal Motor Voltage And Current." Thesis, 2008. http://hdl.handle.net/2005/744.

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This thesis deals with modeling, simulation and implementation of Load Commutated SCR based current source Inverter (LCI) fed squirrel cage induction motor drive with sinusoidal voltage and sinusoidal current. In the proposed system, the induction motor is fed by an LCI. A three level diode clamped voltage source inverter (VSI) is connected at the motor terminal with ac chokes connected in series with it. The VSI currents are controlled in such a manner that it injects the reactive current demanded by the induction motor and the LCI for successful commutation of the SCRs in the LCI. Additional
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