Relevant bibliographies by topics / Thyristor Rectifiers

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Thyristor Rectifiers'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Thyristor Rectifiers"

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Nedeljkovi, M., and Z. Stojiljkovi. "Fast current control for thyristor rectifiers." IEE Proceedings - Electric Power Applications 150, no. 6 (2003): 636. http://dx.doi.org/10.1049/ip-epa:20030910.

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Yodwong, Burin, Damien Guilbert, Matheepot Phattanasak, Wattana Kaewmanee, Melika Hinaje, and Gianpaolo Vitale. "AC-DC Converters for Electrolyzer Applications: State of the Art and Future Challenges." Electronics 9, no. 6 (2020): 912. http://dx.doi.org/10.3390/electronics9060912.

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The main objective of the article is to provide a thorough review of currently used AC-DC converters for alkaline and proton exchange membrane (PEM) electrolyzers in power grid or wind energy conversion systems. Based on the current literature, this article aims at emphasizing the advantages and drawbacks of AC-DC converters mainly based on thyristor rectifier bridges and chopper-rectifiers. The analysis is mainly focused on the current issues for these converters in terms of specific energy consumption, current ripple, reliability, efficiency, and power quality. From this analysis, it is shown that thyristors-based rectifiers are particularly fit for high-power applications but require the use of active and passive filters to enhance the power quality. By comparison, the association combination of the chopper-rectifier can avoid the use of bulky active and passive filters since it can improve power quality. However, the use of a basic chopper (i.e., buck converter) presents several disadvantages from the reliability, energy efficiency, voltage ratio, and current ripple point of view. For this reason, new emerging DC-DC converters must be employed to meet these important issues according to the availability of new power switching devices. Finally, based on the authors’ experience in power conversion for PEM electrolyzers, a discussion is provided regarding the future challenges that must face power electronics for green hydrogen production based on renewable energy sources.
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Pejovic, P., and D. Shmilovitz. "Low-harmonic thyristor rectifiers applying current injection." IEEE Transactions on Aerospace and Electronic Systems 39, no. 4 (2003): 1365–74. http://dx.doi.org/10.1109/taes.2003.1261133.

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BLAABJERG, FREDE, ERNESTO CHIARANTONI, ANTONIO DELL'AQUILA, MARCO LISERRE, and SILVANO VERGURA. "SENSITIVITY ANALYSIS OF AN LCL-FILTER-BASED THREE-PHASE ACTIVE RECTIFIER VIA A "VIRTUAL CIRCUIT" APPROACH." Journal of Circuits, Systems and Computers 13, no. 04 (2004): 665–86. http://dx.doi.org/10.1142/s0218126604001489.

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Three-phase active rectifiers based on the voltage source converter topology can successfully replace traditional thyristor-based rectifiers or diode bridge plus chopper in interfacing dc-systems to the grid. However, if the application in which they are employed has a high safety issue or if there are other loads connected to the same Point of Common Coupling (PCC), and sensitive to the harmonics produced by the switching of the converter, an LCL-filter has to be used. This kind of solution has been studied in theory but its sensitivity to the value of the LCL-filter passive elements employed, to the grid side stiffness and to the parameters of the controller has never been considered in detail. In this paper the experimental results of an LCL-filter-based three-phase active rectifier are analyzed with the circuit theory approach. A "virtual circuit" is synthesized in role of the digital controller and of the feedback filters to have an homogenous model that allows a sensitivity analysis which is rigorous and straightforward for the industry.
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Jiao, Wenliang, Xudong Wang, Risha Na, Lixin Zhang, and hua Li. "Study of optimum control strategy for multiple pulse thyristor rectifiers." International Journal of Embedded Systems 9, no. 1 (2017): 20. http://dx.doi.org/10.1504/ijes.2017.081724.

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Na, Risha, Lihua Li, Lixin Zhang, Xudong Wang, and Wenliang Jiao. "Study of optimum control strategy for multiple pulse thyristor rectifiers." International Journal of Embedded Systems 9, no. 1 (2017): 20. http://dx.doi.org/10.1504/ijes.2017.10002588.

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VATANSEVER, Fahri, Nedim Aktan YALÇIN, and Yiğit Çağatay KUYU. "Calculation of Triggering Angle of Thyristor Rectifiers with Evolutionary Algorithms." Uludağ University Journal of The Faculty of Engineering 20, no. 2 (2015): 67. http://dx.doi.org/10.17482/uujfe.13975.

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Chervonenko, Andrey P., and Denis A. Kotin. "MODELING THYRISTOR TRANSDUCERS IN MATLAB ENVIRONMENT TAKING INTO ACCOUNT THE PECULIARITIES OF THEIR IMPLEMENTATION." Vestnik Chuvashskogo universiteta, no. 3 (September 25, 2020): 150–65. http://dx.doi.org/10.47026/1810-1909-2020-3-150-165.

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The authors present the study of synthesis methods for simulating the models of semiconductor rectifiers. Simulation of semiconductor rectifiers is quite studied today, but many authors carry out synthesis in their own unique way. The need to apply high technologies in variable speed drives with the development of mechanisms and working machines is growing, the automated variable speed drive is being introduced increasingly, making the energy substrate for aggregates and working machines. The relevance of this work is explained by the fact that currently developing technologies make it possible to manufacture more advanced semiconductor elements. The more relevant and significant is the study of refined digital models of electric drives containing semiconductor converters. This paper will summarize known approaches to the development of rectifiers’ digital models, as well as it will offer the authors’ own vision of this issue – taking into account as many individual features of semiconductor elements and the entire electric drive system as a whole as possible. The option proposed for consideration differs in that when developing in Matlab environment the parameters of real existing power elements and their digital analogues are consistent. The article also examines the issue of creating a digital model of the electric drive reverse system including a thyristor transducer and an engine; the transition characteristics of the refined model are illustrated. The result of this study is the analysis of different approaches to modeling semiconductor converters in electric drive systems. In this regard, a refined approach to modeling semiconductor rectifiers was considered, consisting of maximizing approximation of the model structure to real implementation, taking into account all elements, included in the structure of the ventilated electric drive. The study suggests that the developed simulation models can be used for the design of a real power converter in the conditions of a production enterprise.
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Buddingh, P., and J. R. St. Mars. "New life for old thyristor power rectifiers using contemporary digital control." IEEE Transactions on Industry Applications 36, no. 5 (2000): 1449–54. http://dx.doi.org/10.1109/28.871295.

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Noland, Jonas Kristiansen, Fredrik Evestedt, and Urban Lundin. "Active Current Sharing Control Method for Rotating Thyristor Rectifiers on Brushless Dual-Star Exciters." IEEE Transactions on Energy Conversion 33, no. 2 (2018): 893–96. http://dx.doi.org/10.1109/tec.2018.2813664.

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Dissertations / Theses on the topic "Thyristor Rectifiers"

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Nøland, Jonas Kristiansen. "A New Paradigm for Large Brushless Hydrogenerators : Advantages Beyond the Static System." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-317780.

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The grid code, FIKS, from the Norwegian transmission system operator (TSO), Statnett, states that synchronous generators > 25MVA, must have a static excitation system. However, an improved brushless excitation system is in operation on some commercial power plants (36MVA, 93.75rpm & 52MVA, 166.67rpm) with grid-assisting performance beyond the conventional static system. The convenional diode bridge is replaced with a remote-controlled thyristor bridge on the shaft. If wireless communication is not allowed, a control signal through brushes should be employed instead. The thesis explores the expected new era for large brushless hydrogenerators. The proposed brushless system have benefits of reduced regular maintenance due to elimination of brushes and reduced unscheduled maintenance due to redundancy; causing a redused cost-of-energy. A six-phase exciter design with a hybrid-mode thyristor bridge interface leads to improved fault-tolerance, better controllability, minimized torque pulsations and reduced armature currents of the exciter. Excitation boosting (EB) capability is included in the brushless system without additional components or circuitry, contrary to the static excitation system. The brushless excitation system is made insensitive to voltage dips in the interconnected grid, causing improved fault ride-through (FRT) capability and power system stabilizer (PSS) actions.
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Idris, Ibrahim Idris Haroun. "Lab-scale thyristor rectifier and static VAR compensator circuits custom/typical applications /." Click here to view, 2009. http://digitalcommons.calpoly.edu/eesp/16/.

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Thesis (B.S.)--California Polytechnic State University, 2009.<br>Project advisor: Taufik. Title from PDF title page; viewed on Jan. 28, 2010. Includes bibliographical references. Also available on microfiche.
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Buday, Martin. "Digitálně řízení tyristorový zdroj s GSM komunikací." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400622.

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Content of this diploma thesis is project of the digital control design for a thyristor source with GSM communication. Designed for corrosion protection. The work contain design of the whole device from the initial proposals of the electro diagrams up to finished product. It describes the events that arise in corrosion, explains the principle of operating a thyristor as a power switch. It also describes the creation and structure of a simple menu using the STM32 microprocessor. It explains the principle of controlling a source. Next, it deals with controlled rectifiers using a thyristor.
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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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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 la durée des temporisations associées aux transitions conduit au changement de la fréquence de sortie de l'onduleur. L'étude effectuée sur l'ensemble redresseur-onduleur machine-asynchrone nous permet d'envisager une stratégie de fonctionnement en vitesse de rotation variable, fondée sur une commande algorithmique des temporisations, conformément à l'asservissement donné. Nous avons réalisé une maquette de redresseur à thyristors liée à un ordinateur. La commande est gérée par RDP synchronisé. Elle ouvre des perspectives pour une nouvelle technique de commande des convertisseurs statiques.
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Loayza, Ramirez Jorge Miguel. "Study and characterization of electrical overstress aggressors on integrated circuits and robustness optimization of electrostatic discharge protection devices." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI044.

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Cette thèse de doctorat s’inscrit dans la thématique de la fiabilité des circuits intégrés dans l’industrie de la microélectronique. Un circuit intégré peut être exposé à des agresseurs électriques potentiellement dangereux pendant toute sa durée de vie. Idéalement, les circuits devraient pouvoir encaisser ces excès d’énergie sans perdre leur fonctionnalité. En réalité, des défaillances peuvent être observées lors de tests de qualification ou en application finale. Il est donc dans l’intérêt des fabricants de réduire ces défaillances. Actuellement, il existe des circuits de protection sur puce conçus pour dévier l’énergie de ces agresseurs à l’écart des composants fragiles. Le terme anglophone Electrical Overstress (EOS) englobe tous les agresseurs électriques qui dépassent une limite au-delà de laquelle les composants peuvent être détruits. La définition de ce terme est traitée en détail dans la thèse. L’objectif de cette thèse est de comprendre le statut du sujet des EOS dans l’industrie. On propose ensuite une nouvelle méthodologie de caractérisation de circuits pour quantifier leur robustesse face à des formes d’onde représentatives présélectionnées. On propose également des solutions de circuits de protection sur puce que ce soit au niveau de nouveaux composants actifs ou au niveau de la conception des circuits électroniques de protection. Par exemple on propose un nouveau composant basé sur le thyristor qui a la capacité de s’éteindre même si la tension d’alimentation est présente sur l’anode. Une autre proposition est de désactiver les circuits de protection face aux décharges électrostatiques lorsque les puces sont dans un environnement où l’on est sur ou ces agresseurs ne présentent plus de danger. Finalement, des perspectives du travail de thèse sont citées<br>This Ph.D. thesis concerns reliability issues in the microelectronics industry for the most advanced technology nodes. In particular, the Electrical OverStress (EOS) issue is studied. Reducing EOS failures in Integrated Circuits (ICs) is becoming more and more important. However, the EOS topic is very complex and involves many different causes, viewpoints, definitions and approaches. In this context, a complete analysis of the current status of the EOS issue is carried out. Then, the Ph.D. objectives can be defined in a clear way. In particular, robustness increase of on-chip protection structures and IC characterization against EOS-like aggressors are two of the main goals. In order to understand and quantify the behavior of ICs against these aggressors, a dedicated EOS test bench is put in place along with the definition of a characterization methodology. A full characterization and comparison is performed on two different Electro- Static Discharge (ESD) power supply clamps. After identifying the potential weaknesses of the promising Silicon-Controlled Rectifier (SCR) device, a new SCR-based device with a turn-off capability is proposed and studied thanks to 3-D Technology Computer-Aided Design (TCAD)simulation. Triggering and turn-off behaviors are studied, as well as its optimization. Finally, three different approaches are proposed for improving the robustness of the IC onchip protection circuits. They are characterized thanks to the EOS test bench which allows identifying their assets as well as their points of improvement
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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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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 high current industrial processes. HVDC transmission configurations are first developed for 4-quadrant high-pulse operation, based on the series connected multi-level current reinjection (MLCR) topology. Independent reactive power control between two ends of an HVDC link are proven under firing-shift control, with high-pulse operation, and without on-load tap changing (OLTC) transformers. This is followed by application of firing-shift control to a bi-directional back-to-back HVDC link connecting two weak systems to highlight the added dc voltage control flexibility of the concept. The fault recovery capability of an MLCR based ultra-HVDC (UHVDC) long distance transmis-sion scheme is also proven under firing-shift control. The scheme responds favourably to both ac disturbances and hard dc faults, without the risk of commutation failures and instability experienced during fault recovery of line-commutated conversion. The two-quadrant capability of very high current rectification is also proven with configurations based on phase-shifted 12-pulse and MLCR parallel CSCs. The elimination of the electro-mechanical OLTC/satruable reactor voltage control, the high-current CSC’s biggest shortcoming, greatly improves controllability and with firing-shift control, ensures high power-factor for all load conditions. This reduces the reactive power demands on the transmission system, which results in more efficient power delivery
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Broďák, Kamil. "Napájecí zdroj elektrostatického odlučovače." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221177.

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The diploma thesis focuses on the problems of electric power precipitators. Due to their current dominant position, the work concentrates on the sources of single phase transformers operating at the frequency of 50 Hz controlled by thyristors. The first part describes the electrostatic precipitator and its principle. This is followed by a brief insight into the proposal for an electrostatic precipitator. The work also explains the high voltage source that is divided into a transformer with a rectifier and into a control box with power circuits and control circuits that provide the power supplied by a transformer. The work also offers an explanation of the HV source system that operates at different conditions. The last part suggests a proposal for cooling cabinet including thyristors, for power line control box resources, for a supply line and a line to the transformer.
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Zelený, Miroslav. "Provoz distribučních sítí s odporovými svářečkami." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219391.

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This Diploma thesis deals with assessment of the influence of two fundamental types of resistance welders operation on chosen power quality parameters at the point of common coupling (PCC) of the power network. The assessed parameters of power quality are the total harmonic distortion of the supply voltage, asymmetry of the supply voltage and the level of short term flicker at the point of common coupling. The assessment is based on the comparison of the results of computer simulations done in PSCad 4.2.0 with the requirements of technical standards. The outcome of this thesis is the determination of allowable limits for physical and operation parameters for the general arrangement of a power distribution network and a resistance welder that should guarantee the power quality compliance.
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Monsur, Nasima. "Modeling a hybrid diode-thyristor HVDC rectifier in EMTP-RV." Thesis, 2007. http://spectrum.library.concordia.ca/975534/1/MR34639.pdf.

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High Voltage Direct Current (HVDC) transmission systems are used all over the world in frequency-conversion schemes, non-synchronous AC interconnections, submarine DC-links and in many other projects where they enhance AC system stability. HVDC system has many advantages such as fast power flow control, stable and economical operation for long-distance transmission. But the large-scale usage of HVDC transmission is limited by several factors and one of the most important factors is the high cost of conversion equipment. A proposed converter model for the HVDC rectifier system is presented for a possible reduction of the high cost of conversion equipment. This thesis presents an investigation into the viability of a hybrid diode-thyristor HVDC rectifier. In a standard HVDC system, a 12-pulse thyristor-bridge is used. In this thesis, the CIGRE benchmark based HVDC system operating with a weak AC system is presented as the standard model. In the proposed hybrid circuit, the lower 6-pulse thyristor-bridge (which is connected with a Y-Y transformer), is replaced by a cheaper diode-bridge. This reduces the overall capital cost of the 12-pulse rectifier, but has implications regarding the operational behaviour of the HVDC terminal and system. The operational behaviour of this hybrid diode-thyristor rectifier under static and dynamic conditions and the comparison with the standard model are verified with the well-known simulation package called EMTP-RV. Due to unbalanced harmonic cancellation between diode-bridge and thyristor-bridge, the proposed HVDC system generates more characteristic harmonics than the standard model on both AC and DC side. So, an extra filtering unit is needed which will increase the cost of the proposed HVDC model. In the proposed model, only one controller block is needed for the thyristor-bridge as the diode-bridge does not need the controller block. So the cost will be reduced in the proposed model due to the requirement of a single controller block. The controller for optimizing the PI parameters of the proposed HVDC model is designed by using ITAE (Integral of Time multiplied by the Absolute value of the Error) criterion, which is one of the synthetic indexes for evaluating the control system's performance. DC fault is the most severe fault for the converter valves at the rectifier end and it represents one serious operational difficulty with the introduction of the proposed model. It is very difficult to recover from a DC fault like the standard model because of the uncontrolled diode-bridge. So an AC breaker (which is costly equipment) is added to the system to recover from the fault
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Butros, Peter. "Simulations of Rotating Brushless AC Excitation System with Controlled Thyristor Bridge Rectifier for Hydropower Generators." Thesis, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-166403.

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This thesis aims to simulate and find out more about the electrical dynamics of a six-phase exciter for hydropower generators. Because ordinary electric circuit-based simulation software only simulate three-phase electrical systems, a FEM-based software is used for the electrical dynamics simulations of the six-phase system. The objective is to analyse the pulsation behaviour of the rectified electrical output on the six-phase system and compare it to the three-phase system. The three-phase system is also simulated with filters with the aim of decreasing the amplitude of the pulsations on the electrical output. It is expected that an upgraded system from a three-phase system to a six-phase system should double the pulsation frequency on the rectified electrical output. However, the result shows that the rectified electrical output of the six-phase system consists of pulsations with unexpected frequencies. The simulated RL-filter on the three-phase system shows only insignificantly small changes on the rectified electrical pulsation amplitude.
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Books on the topic "Thyristor Rectifiers"

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Supronowicz, Henryk. Uluchshenie koėffit͡s︡ienta moshchnosti preobrazovatelʹnykh ustanovok. Ėnergoatomizdat, 1985.

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Marston, R. M. 110 Thyristor Projects Using S.C.R.s and Triacs. Butterworth-Heinemann Ltd, 1986.

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International, Semiconductor Data, ed. Power modules. SDI, 1990.

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Book chapters on the topic "Thyristor Rectifiers"

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Gumhalter, Hans. "Thyristor Controlled Rectifiers." In Power Supply in Telecommunications. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-78403-3_10.

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Patil, Mahesh, and Pankaj Rodey. "Thyristor Rectifier in Closed Loop." In Control Systems for Power Electronics. Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2328-3_3.

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Jayendran, Ariacutty, and Rajah Jayendran. "Silicon controlled rectifiers or thyristors." In Englisch für Elektroniker. Vieweg+Teubner Verlag, 1996. http://dx.doi.org/10.1007/978-3-322-84907-6_16.

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Zhao, Feng, and Bingjiao Wu. "Thyristor Ports Voltage in Double Anti-Star-Controlled Rectifier Circuit with Balancing Reactor." In Electrical, Information Engineering and Mechatronics 2011. Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2467-2_184.

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Manias, Stefanos N. "Thyristor-Controlled Rectifiers." In Power Electronics and Motor Drive Systems. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-12-811798-9.00005-6.

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"Conversion of Electrical Energy in the Processes of Its Generation and Transmission." In Technologies for Electrical Power Conversion, Efficiency, and Distribution. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-61520-647-6.ch008.

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Electrical energy can be obtained by burning coal (thermal power plant), by using nuclear fuel (nuclear power plant) or by using the power of water (hydro power plant). In these cases, the energy obtained by the sources put a shaft of an electrical generator in motion. The generator generates electrical energy – see Figure 1. In the installation, excitation system for the generator is used. The system turns on an uncontrolled rectifier, thyristor-controlled rectifier or AC thyristor regulator dependent on the generator type. The obtained energy is transmitted using a transmission system towards consumers. The transmission yet is made mainly in high-voltage AC energy form (HVAC). In different parts of the transmission network the voltage value may be different. There are so-called high-voltage (420 kV, 220 kV, 110 kV, etc) and medium voltage (20 kV, 6.6 kV, etc.) systems. General consumers consume electrical energy from so-called low-voltage systems (230V, 50Hz or 110V, 60Hz). During the transmission the type of energy does not change, only the value of the voltage changes using transformers.
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Manias, Stefanos N. "Thyristor and Single-Phase Half-Wave Controlled Rectifier." In Power Electronics and Motor Drive Systems. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-12-811798-9.00003-2.

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"A Digital Trigger of Thyristor Rectifier for High Voltage Formed Aluminum Foil Based on DSP." In ESSE 2017. De Gruyter, 2017. http://dx.doi.org/10.1515/9783110540048-063.

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Conference papers on the topic "Thyristor Rectifiers"

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Gelman, Vitaly. "Why There Is No IGBT Traction Rectifiers?" In 2014 Joint Rail Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/jrc2014-3802.

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The Insulated Gate Bipolar Transistors (IGBT) are widely used in high power converters. Definite advantages of IGBT rectifiers (also called PWM rectifiers) are: zero reactive power, low harmonics, and inherent power recuperation capability. However stationary traction rectifiers are built with either thyristors or diodes, not with IGBTs. The paper compares IGBT and thyristor rectifiers and analyzes the factors precluding the use of IGBT rectifiers at traction power substations.
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Gelman, Vitaly. "Thyristor Controlled Rectifier Testing Using Scaling Theory." In 2018 Joint Rail Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/jrc2018-6133.

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Thyristor Controlled Rectifiers offer numerous advantages for the traction applications: capital cost savings, increased system throughput, reduced maintenance and additional energy and cost savings for reversible controlled rectifiers. Yet the controlled rectifier usage has been limited, partially because of testing difficulties. The multi-megawatt power level makes testing at the test laboratory at full power impractical. Further exasperating the issue is a presence of control systems that can’t be tested completely while running with a shorted output. The paper proposes a way out of this conundrum through the testing at reduced voltage and current (scaling). The scaling allows reducing power requirements 50 to 400 times, making it practical to test both regulating system and power circuit performance with simulated train load current. The scaled voltage/current test verifies a dynamic response under realistic train behavior, voltage regulation curve, AC and DC harmonics. The paper proposes the scaling tests to verify both forward and reverse operation of controlled rectifier.
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Gelman, Vitaly. "Energy Savings With Reversible Thyristor Controlled Rectifier." In 2009 Joint Rail Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/jrc2009-63013.

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The paper deals with energy savings in Traction Systems available with Thyristor Controlled Rectifiers (TCR) and Reversible TCR (RTCR). TCR provides active voltage control, RTCR in addition has power recuperation into AC line. The energy balance of the TCR and diode rectifier systems are calculated, including losses in the rails, car’s power train and friction losses. The TCR advantages over diode rectifiers: better voltage regulation and fault current limiting allow us to reduce the number of substations and increase their service life. Major energy savings are through recuperation back to AC line using RTCR, with additional savings through increased DC bus voltage. The estimated energy savings depending on the system parameters, train speed profile, etc. can be as high as 50%.
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Das, Bhaba Priyo, Neville R. Watson, and Yonghe Liu. "Mains Synchronisation for Thyristor Rectifiers." In 2011 Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, 2011. http://dx.doi.org/10.1109/appeec.2011.5748540.

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5

Sagareli, Sergo, and Vitaly Gelman. "Implementation of New Technologies in Traction Power Systems." In ASME/IEEE 2004 Joint Rail Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/rtd2004-66014.

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Due to significant developments in power electronics since the 1980’s, a row of new components are being used for both utility [1] and traction power substations, leading to new concepts in their design and construction. Among others, such innovations as incorporation of microprocessor-based multifunction protective relays and programmable logic controllers are changing traditional substations’ equipment layout and inter-connections; the development and experimental use of thyristor rectifiers and solid-state DC circuit breakers is under way. A significant reduction in the amount of protective and control devices (and associated wiring) has been achieved by introduction of multi-function relays (MFR or MPR – Multi-Purpose Relay), capable of replacing a whole group of relays used for equipment protection and automated control; for example, one MFR may perform functions of overcurrent and ground fault protection, over- and undervoltage protection, fault sensing and reclosing. Plus, it may be used for data logging and data recording purposes [2]. Additionally, high end MPRs have remote access features allowing not only to set any parameters, but even provide firmware upgrade without visiting the substation, thus providing labor savings. Therefore, one MFR may replace about a dozen of traditional relays and devices, along with their wiring and save maintenance expenses as well. Thyristor Controlled Rectifiers (TCR’s) are another significant innovation in traditional DC traction power substation design. Thyristor rectifiers are offering very important benefit of regulated DC voltage: at the substation’s bus output, the voltage may be constant from 0 to a 100% or even 150% load, which means improved train performance in terms of speed and reliability, as well as lower losses of energy in third rails, and possibility of raising third rail system voltage in the future, thus further lowering losses of energy in the system. Alternatively, it allows to increase the distance between the substations and thus reduce total number of substations. LIRR installed one thyristor rectifier for experimental use in 2003. Flywheel-based energy storage system is another important innovation that is being installed by the LIRR for experimental use. LIRR is installing for experimental use trackside fly-wheel energy storage system developed and tested by the British uranium enrichment company URENCO. According to Tarrant [3], in March 2002 the company successfully tested the KESS – Kinetic Energy Storage System and demonstrated 11% to 18% energy savings in different conditions of operation, because of the lower losses due to higher voltage during the acceleration period.
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Mack, Michael, and Richard Cruise. "Diesel Alternators and Thyristor Rectifiers - Potentially Unstable Partners." In 1987 The Ninth International Telecommunications Energy Conference. IEEE, 1987. http://dx.doi.org/10.1109/intlec.1987.4794551.

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Gelman, Vitaly. "Thyristor Controlled Rectifiers (TCR) for traction - problems and solutions." In 2013 3rd International Conference on Electric Power and Energy Conversion Systems (EPECS). IEEE, 2013. http://dx.doi.org/10.1109/epecs.2013.6713078.

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Gelman, Vitaly. "Comparison Between Wayside Storage and Reversible Thyristor Controlled Rectifiers (RTCR) for Heavy Rail Applications." In 2013 Joint Rail Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/jrc2013-2460.

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There had been a substantial interest in the traction community to use wayside Energy Storage Systems (ESS) to better utilize train braking energy and thus achieve reduction of energy cost and peak power, and voltage stabilization. An alternative solution to reach the same goals is using recuperating (also called regenerating) traction power stations such as a Reversible Thyristor Controlled Rectifiers (RTCR). The paper compares advantages and disadvantages of ESS of three most common types — flywheels, batteries and supercapacitors — and RTCR. The analysis takes into account size, capital cost, the “round trip” energy losses and energy savings for heavy rail applications.
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Di Tommaso, A. O., F. Genduso, and R. Miceli. "A modular approach in teaching thyristor rectifiers with equation-oriented softwares." In 2014 Ninth International Conference on Ecological Vehicles and Renewable Energies (EVER). IEEE, 2014. http://dx.doi.org/10.1109/ever.2014.6844096.

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Biacs, Gabor A., and Milan S. Adzic. "Modeling of the thyristor controlled rectifiers for control of Ward - Leonard system." In 2009 7th International Symposium on Intelligent Systems and Informatics (SISY). IEEE, 2009. http://dx.doi.org/10.1109/sisy.2009.5291167.

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