Relevant bibliographies by topics / Interleaved buck converter

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  2. Dissertations / Theses
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Academic literature on the topic 'Interleaved buck converter'

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Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Interleaved buck converter"

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Tseng, Sheng Yu, and Shu Yuan Fan. "Interleaved Soft-Switching Converter with L-C-D Snubber for Reflex Charger." Applied Mechanics and Materials 284-287 (January 2013): 2555–60. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.2555.

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This paper presents a Reflex charger realized by N sets of interleaved soft-switching converters with L-C-D snubbers. The interleaved converters used for implementing the Reflex charging technique can be interleaved boost, interleaved buck-boost, and interleaved sepic converters. The use of the L-C-D snubber in each set of interleaved converter is to reduce turn-off switching losses, hence, to achieve higher conversion efficiencies of the interleaved converters and to extend the lifetime of rechargeable batteries. A prototype of Reflex charger with four sets of interleaved buck-boost con-verters is implemented for charging lead acid batteries of 12V. Experimental results show that the proposed circuit structure can generate the required positive/negative pulses for the Reflex charging.
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Babaei, Ebrahim, Zahra Saadatizadeh, and Behnam Mohammadi Ivatloo. "A New Interleaved Bidirectional Zero Voltage Switching DC/DC Converter with High Conversion Ratio." Journal of Circuits, Systems and Computers 26, no. 06 (March 5, 2017): 1750105. http://dx.doi.org/10.1142/s0218126617501055.

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In this paper, a new interleaved nonisolated bidirectional zero voltage switching (ZVS) dc–dc converter by using one three-windings coupled inductor is proposed. The proposed topology can provide high step-up and high step-down conversion ratios for boost and buck operations, respectively. Moreover, because of interleaving, the proposed converter has low input current ripple at low voltage side in both buck and boost operations. The proposed converter uses lower number of switches to have bidirectional power flow in comparison with other interleaved bidirectional converters. All used switches in the proposed converter are turned on under ZVS. The advantages of the proposed converter in comparison with the conventional interleaved converters are included in the capability of bidirectional power flow, ZVS operation for all switches and high step-up and high step-down voltage gain for boost and buck operations. In this paper, the proposed converter is analyzed completely and all equations of components are extracted as well as the ZVS conditions of all switches. Moreover, a comprehensive comparison between the proposed converter and conventional topologies is presented. To verify the accuracy performance of the proposed converter, the experimental results are given.
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Tseng, Sheng Yu, and Yi Ren Juang. "Approach to Developing Interleaved Converter with Single-Capacitor Turn-Off Snubber." Applied Mechanics and Materials 284-287 (January 2013): 2477–84. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.2477.

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This paper presents a systematic approach to developing turn-off snubber for an interleaving converter to smooth out switch turn-off transition. With the approach, the interleaving converter with two turn-off snubbers, which are formed by two L-C-D type snubbers, can be replaced by the one with turn-off snubber composed of a single-capacitor snubber. It can be used in the basic six interleaved converters, such as buck, boost, buck-boost, ‘cuk, zeta and sepic converters. In this research, the structure of the interleaved converter with the turn-off snubber can be conveniently simplified from the derived general configurations, reducing the complexity of circuit structure significantly. Measured results from a buck prototype converter have been verified to prove the feasibility of the derived turn-off snubber.
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Do, Hyun Lark. "Interleaved Synchronous Buck Converter with a Coupled Inductor." Advanced Materials Research 424-425 (January 2012): 793–95. http://dx.doi.org/10.4028/www.scientific.net/amr.424-425.793.

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An interleaved synchronous buck converter with a coupled inductor is proposed in this paper. In the proposed converter, two synchronous buck converters operate with the interleaving technique. Moreover, a single magnetic component is utilized. By using a loosely coupled inductor, its leakage inductances are utilized to control the power flow. Theoretical analysis and performance of the proposed converter were verified on an experimental prototype operating at 100 kHz switching frequency
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Ilic, Milan, and Dragan Maksimovic. "Interleaved Zero-Current-Transition Buck Converter." IEEE Transactions on Industry Applications 43, no. 6 (2007): 1619–27. http://dx.doi.org/10.1109/tia.2007.908175.

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Lee, Seunghyun, Keunbong Lee, and Wansoo Nah. "Reduction of Conducted Emission in Interleaved RPWM Buck Converter." Journal of Korean Institute of Electromagnetic Engineering and Science 28, no. 4 (April 2017): 298–308. http://dx.doi.org/10.5515/kjkiees.2017.28.4.298.

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Desai, Hardik P., Ranjan Maheshwari, and Shambhu N. Sharma. "MATLAB-Based Investigation of Multiphase Interleaved Buck-Boost Converter for PV System." ISRN Renewable Energy 2012 (March 1, 2012): 1–9. http://dx.doi.org/10.5402/2012/317982.

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A photovoltaic (PV) generator exhibits nonlinear voltage-current characteristics and its maximum power point varies with solar radiation. Analytical investigations of the new family of switching converters based on a parallel connection of (=4) identical buck-boost converters employed in PV system are presented. The interleaving strategy ensures that all the converters operate at the same switching frequency. Mathematical models developed using the state-space average technique are presented in this paper. Various steady-state performance expressions are also derived. The present converter system has the advantages of reduced size of the converter, and ripple in the total inductor current. The effectiveness of the four-phase interleaved dc-dc converter combined with PV system is demonstrated through simulations carried out in MATLAB environment.
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Shao, Zhu Lei. "Study on Buck-Boost Integrated Type Three-Port Converter." Advanced Materials Research 960-961 (June 2014): 1304–7. http://dx.doi.org/10.4028/www.scientific.net/amr.960-961.1304.

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Aiming at simplifying the structure of power supply system of new energy, a buck-boost integrated type three-port converter is designed in this paper. The three-port converter can replace three separate converters, which makes the system structure is simplified and manufacturing cost is reduced. The three-port converter realizes the current expansion and ripple suppression by adopting inductor interleaved parallel bridge arm structure. The topology and control strategy of the three-port converter are analyzed in this paper. From the experimental results, the inductor current ripple and realization of soft switch meet the design requirement. The buck-boost integrated type three-port converter is applicable to the new energy power supply system.
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José Mendes de Seixas, Falcondes, Claudiner Mendes de Seixas, and Carlos Alberto Canesin. "A 300A Dynamic Electronic Load Based On Modified Buck+boost Interleaved Converter." Eletrônica de Potência 11, no. 3 (November 1, 2006): 161–66. http://dx.doi.org/10.18618/rep.2006.3.161166.

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Fesenko, Artem, Oleksandr Matiushkin, Oleksandr Husev, Dmitri Vinnikov, Ryszard Strzelecki, and Piotr Kołodziejek. "Design and Experimental Validation of a Single-Stage PV String Inverter with Optimal Number of Interleaved Buck-Boost Cells." Energies 14, no. 9 (April 25, 2021): 2448. http://dx.doi.org/10.3390/en14092448.

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Increasing converter power density is a problem of topical interest. This paper discusses an interleaved approach of the efficiency increase in the buck-boost stage of an inverter with unfolding circuit in terms of losses in semiconductors, output voltage ripples and power density. Main trends in the power converter development are reviewed. A losses model was designed and used for the proposed solution to find an optimal number of interleaved cells. It describes static and dynamic losses in semiconductor switches for buck and boost mode. The presented calculation results demonstrate the efficiency of the interleaved approach for photovoltaic system. 1 kW power converter prototype was designed with two parallel dc-dc cells for experimental verification of obtained theoretical results. The experimental results confirm theoretical statements.
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Dissertations / Theses on the topic "Interleaved buck converter"

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Barbagallo, Mariano. "HV Interleaved Multiphase DcDc Buck-Boost Converter." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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in electric vehicle (ev) systems, bi-directional dc-dc converters are used to interface the rechargeable energy storage system (ress) such as the battery bank with the high voltage dc-link of the inverter. currently multi-cell batteries used in automotive systems, such as ev or hev, are subject to a higher failure rate than single cell batteries. the more cells are used in series, the greater the opportunities to fail and the worse the reliability. when a cell has failed the entire string or even worse the battery must be replaced, which is extremely costly [1]. so, to have less cells in series increases the reliability of the system, which also leads to a lower voltage of the dc link. for this reason and many others, in a hybrid or electric vehicle powertrain, a boost dc-dc converter enables optimization of the battery system. this work aims to investigate all the benefits that come with interleaving technique in dc-dc converters for automotive systems. indeed, these kind of converters for use in high-performance and high-power applications have received increasing interest in recent years. in particular this research work, done with sevcon ltd focuses on the theory behind bi-directional multiphase interleaved (imc) converter and how it could be used to interface a rechargeable energy storage system (ress) to the powertrain of a hybrid or electric vehicle. more specifically, it was investigated if it is possible to use (after appropriate hardware and software amendments) a standard three phase ac motor inverter as a multiphase interleaved converter. for this purpose two motor controller, produced by sevcon have been analysed. both the gen4 size 10 and the hvlp inverters were considered for use as a dc-dc converter. the voltage can step up or down based on the power flow direction. each phase is indeed a bi-directional buck or boost converter, which is composed of a bridge of power switches and inductor.
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Zich, Sean Michael. "ANALYSIS AND DESIGN OF CONTINUOUS INPUT CURRENT MULTIPHASE INTERLEAVED BUCK CONVERTER." DigitalCommons@CalPoly, 2009. https://digitalcommons.calpoly.edu/theses/35.

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The power requirements for microprocessors have been increasing per Moore's Law. According to International Technology Roadmap (ITRS), Voltage Regulator Module (VRM) for microprocessors will be about 200 W at 1 V output in 2010. With the VRM’s topology of synchronous buck, serious technical challenges such as small duty cycle, high switching frequencies, and higher current demands, contribute to decreased power density and increased cost. This thesis proposes a Continuous Input Current Multiphase Interleaved Buck topology to solve the technical challenges of powering future microprocessors. This new topology is aimed to improve past topologies by providing continuous input current and improved efficiency. An open loop system of the proposed new topology is simulated using OrCAD PSpice to evaluate the performance criteria of the VRM. A hardware prototype of a four-phase Continuous Input Current Multiphase Interleaved Buck Converter is constructed and tested to assess the targeted improvements.
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Fjällid, Markus. "Design of a Real-Time Model of a Photovoltaic Panel." Thesis, KTH, Elektrisk energiomvandling, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-166590.

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Photovoltaic panels are widely used to harvest solar energy. In the general application the panels are connected to an inverter that allows the power to be feed to the grid. The possibility to emulate a photovoltaic panel in a laboratory environment simplifies the development of inverters. Existing solutions are either expensive or not performing good enough. This thesis presents a real-time model that has fast enough transient response to be used with the future’s solar panel inverters. The solution is based on an interleaved synchronous buck converter with an analogue current control loop. A micro-controller is utilizing a look up table to steer the power stage to mimic the output of a real panel. The content of the look up table can be exchanged to emulate an arbitrary photovoltaic panel in different environmental conditions. The emulator output is stable in the load case with a typical inverter connected to it. It is oscillating with a limited amplitude under open circuit. A hardware implementation of the system confirms the functionality. The current controller can correct a load step in 20 μs. The output switching ripple is below 1 mA.
Fotovoltaiska paneler är ett väl etablerat sätt att ta tillvara på solenergi. Den vanligaste tillämpningen är att panelerna är anslutna till en växelriktare för att möjliggöra att energin matas ut på elnätet. Att kunna emulera en solcellspanel i laboratoriemiljö förenklar utvecklingen av växelriktare. Befintliga system är antingen dyra eller presterar inte bra nog. Denna avhandling presenterar en realtidsmodell som kan hantera transienta förlopp tillräckligt snabbt för att kunna användas med framtidens solpanelsväxelriktare. Lösningen är baserad på en tvåfas synkron buck-omvandlare med en analog strömreglering. En mikroprocessor använder uppslagstabell för att styra effektsteget till att efterlikna utsignalen från en verklig panel. Innehållet i uppslagstabellen kan bytas ut för att emulera en godtycklig solpanel i olika driftsförhållanden. Emulatorns utsignal är stabil med en typisk växelriktare ansluten som last. Utsignalen svänger med en begränsad amplitud under öppen krets. Experimentiella tester bekräftar funktionen. Strömregleringen kan korrigera ett belastningssteg inom 20 μs. Utgångens strömrippel är under 1 mA.
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Mandrioli, Riccardo. "A modular interleaved converter for output current ripple minimization in dc fast chargers for electric vehicles." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18995/.

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In this work, a DC off-board fast battery charger topology is presented, designed, and tested. It is expected to be able to fight the range anxiety by significantly diminish the EVs' charging times up to 15-20 minutes, meanwhile keeping low manufacturing, Operation and Maintenance (O&M) costs. The charger is made out of two main power stages the AC/DC and DC/DC converters. In order to keep the costs lower as possible, both parts are designed using interleaved topologies organized by using the same two-level three-phase modules coupled through reactors. This architecture allows to use the already well-known industrial three-phase modules taking advantage of the benefits guaranteed by mass production and at the same time permitting an effortless expansion thanks to its modularity. Thanks to the interleaved connections, it is possible to reach a high efficiency by distributing current and power evenly among the legs. Furthermore, this topology can handle bidirectional power flows, and it might be used for operating in both Grid to Vehicle (G2V) and Vehicle to Grid (V2G) modalities. In order to reduce the dimensions, and the costs of the filters, a control strategy able to keep a zero current ripple at any operative condition is developed. The proposed charger architecture uses an AC input BUS followed by an active rectifier stage. A ripple-free strategy acts on the variable DC BUS voltage according to the chopper duty cycle keeping the current ripple null. Meanwhile, DC/DC provides the requested output current. This strategy involves the AC/DC with the tasks to regulate the DC BUS voltage level and correcting the input power factor. A model-based control system ensures that every leg’s current follows an average current reference signal. Legs’ currents are actively rebalanced throughout a current rebalancing network. Finally, the simulation results are carried out trough MATLAB Simulink and validated with laboratory measurements on an adequately scaled prototype.
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Suarez, Buitrago Camilo Alexey [UNESP]. "Sistema de carregamento rápido de veículo elétrico puro." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/150572.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Uma das principais dificuldades para a adoção dos veículos elétricos (VE) é o tempo de abastecimento (carregamento elétrico), considerado elevado quando comparado com o tempo requerido para abastecer um veículo com motor a combustão interna. O carregamento do VE típico de passageiros é geralmente realizado na residência do proprietário, ligando o carregador interno do VE em uma tomada convencional monofásica. Este método de carregamento é conhecido como de Corrente Alternada (CA), requer, tipicamente pelo menos 7 horas para fornecer uma carga completa. Por outro lado, o método de carregamento por Corrente Continua (CC) oferece tempos de carregamento entre 10 e 80 minutos. Contudo, para obter este nível de desempenho, são empregados carregadores externos de alta potência ligados de forma direta ao banco de baterias do VE. Devido ao custo e aos requerimentos de alimentação, estes carregadores rápidos são usados principalmente em aplicações públicas e comerciais. As pesquisas pelas melhores topologias a serem empregadas nos carregadores rápidos ainda são, neste ano de 2017 objeto de estudos em escala mundial. Neste contexto, este trabalho descreve a análise e implementação de um protótipo de carregador externo rápido para VE, o qual é composto por um retificador híbrido trifásico com correção ativa do fator de potência (Etapa CA-CC), seguido de um conversor tipo Buck entrelaçado (Etapa CC-CC). Na etapa CA-CC são impostas correntes de entrada senoidais, obtendo desta forma uma reduzida distorção harmônica total (DHT). Nesta etapa são empregados retificadores SEPIC comutados sob corrente nula (Zero Current Switching, ZCS) controlados por uma simples modulação por histerese, em paralelo com um retificador trifásico a diodos de seis pulsos. O estágio SEPIC processa apenas uma fração da potência total entregue pelo retificador híbrido, reduzindo deste modo os esforços de corrente dos semicondutores empregados, permitindo o uso desta topologia em elevados níveis de potência. Na etapa CC-CC o conversor Buck entrelaçado é controlado por modulação de largura de pulso (Pulse-Width Modulation, PWM), permitindo assim a implantação da técnica de carregamento por corrente constante e tensão constante (Constant Current-Constant Voltage, CC-CV), comumente empregada em baterias de íons de lítio e supercapacitores (SC). Como principal resultado foi obtido o carregamento de um banco de supercapacitores de 2,54 F, com corrente constante de 20 A, variando sua tensão de 180 V a 270 V com uma duração de 40 s, obtendo uma distorção harmônica total de 3,52% na corrente de entrada, ajustando-se ao padrão IEEE 2030.1.1-2015.
One of the main barriers against electric vehicle (EV) adoption is related to the battery recharging time, which is relatively high when compared to the time required to fill up a gasoline/diesel internal combustion engine vehicle. EV charging generally is done at home, using the on-board EV charger tied to conventional single phase power inlet, this charging method is known as Alternating Current (AC) and takes at least 7 hours to provide a full charge. On the other hand, the Direct Current (DC) method offers charging times from 1.2 hours to 10 minutes. However, to reach this performance, high power off-board chargers also known as fast-chargers (FC), directly charge the EV battery bank. Due to its cost and power supply requirements FC are used only in public or commercial applications. The researches for the best FC topologies are an active area of studies over the world. This work describes the analysis and implementation of an off-board electric vehicle (EV) Fast Charger prototype. It is composed by a three-phase hybrid rectifier with power factor correction (AC/DC stage), followed by an interleaved buck converter (DC/DC stage). At AC/DC stage, sinusoidal input phase currents are imposed, and consequently low Total Harmonic Distortion (THD) is obtained by the use of Zero Current Switching (ZCS) SEPIC rectifiers, applying a simple hysteresis control technique, in parallel with a conventional three-phase six pulses diode rectifier. The SEPIC converters manage only a fraction of the total power delivered by the hybrid rectifier, reducing the semiconductors current stresses, and allowing the use of this topology for high power levels. At DC/DC stage, the interleaved buck converter is controlled by Pulse Width Modulation (PWM), allowing Constant Current–Constant Voltage (CC-CV) charging technique, typically used for Lithium-ion (Li) batteries and Supercapacitors (SC). As main result of this implementation was obtained a charging process using constant a constant current of 20A over a supercapacitor bank of 2,54 F, raising its voltage from 180V to 270V in less than 40s, having a input phase current THD of 3,52%, fulfilling the requirements of IEEE 2030.1.1-2015 standard.
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Suarez, Buitrago Camilo Alexey. "Sistema de carregamento rápido de veículo elétrico puro /." Ilha Solteira, 2017. http://hdl.handle.net/11449/150572.

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Orientador: Carlos Alberto Canesin
Resumo: Uma das principais dificuldades para a adoção dos veículos elétricos (VE) é o tempo de abastecimento (carregamento elétrico), considerado elevado quando comparado com o tempo requerido para abastecer um veículo com motor a combustão interna. O carregamento do VE típico de passageiros é geralmente realizado na residência do proprietário, ligando o carregador interno do VE em uma tomada convencional monofásica. Este método de carregamento é conhecido como de Corrente Alternada (CA), requer, tipicamente pelo menos 7 horas para fornecer uma carga completa. Por outro lado, o método de carregamento por Corrente Continua (CC) oferece tempos de carregamento entre 10 e 80 minutos. Contudo, para obter este nível de desempenho, são empregados carregadores externos de alta potência ligados de forma direta ao banco de baterias do VE. Devido ao custo e aos requerimentos de alimentação, estes carregadores rápidos são usados principalmente em aplicações públicas e comerciais. As pesquisas pelas melhores topologias a serem empregadas nos carregadores rápidos ainda são, neste ano de 2017 objeto de estudos em escala mundial. Neste contexto, este trabalho descreve a análise e implementação de um protótipo de carregador externo rápido para VE, o qual é composto por um retificador híbrido trifásico com correção ativa do fator de potência (Etapa CA-CC), seguido de um conversor tipo Buck entrelaçado (Etapa CC-CC). Na etapa CA-CC são impostas correntes de entrada senoidais, obtendo desta forma uma r... (Resumo completo, clicar acesso eletrônico abaixo)
Mestre
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Dey, Sourav. "Large-Signal Analysis of Buck and Interleaved Buck DC-AC Converters." Wright State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=wright1409578634.

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Videau, Nicolas. "Convertisseurs continu-continu non isolés à haut rapport de conversion pour piles à combustible et électrolyseurs - Apport des composants GaN." Phd thesis, Toulouse, INPT, 2014. http://oatao.univ-toulouse.fr/15740/7/Videau_2.pdf.

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Face aux enjeux énergétiques d’aujourd’hui et de demain, le développement des énergies renouvelables semble inéluctable. Cependant, la production électrique de sources renouvelables prometteuses comme le photovoltaïque ou l’éolien est intermittente et difficilement prévisible du fait de la dépendance de ces sources aux conditions météorologiques. Afin de s’affranchir du caractère discontinu de la production d’électricité et de l’inadéquation de la production avec la consommation, un moyen de stockage de l’énergie électrique est nécessaire. Dans ce contexte, la batterie hydrogène est une des solutions envisagées. Lors de périodes de surproduction d’énergie renouvelable, un électrolyseur produit de l’hydrogène par électrolyse de l’eau. Lorsque cela est nécessaire, une pile à combustible fournit de l’électricité à partir du gaz stocké. Couplé avec des sources d’énergie renouvelable, la batterie hydrogène produit de l’énergie électrique non carbonée, c’est-à-dire non émettrice de gaz à effet de serre. L’intérêt majeur de cette technologie est le découplage entre l’énergie et la puissance du système. Tant que la pile à combustible est alimentée en gaz, elle fournit de l’électricité, l’énergie dépend des réservoirs de gaz. La puissance, quant à elle, dépend des caractéristiques des composants électrochimiques et du dimensionnement des chaînes de conversions de puissance. Les chaînes de conversion de puissance relient les composants électrochimiques au réseau électrique. Dans le cas de la chaîne de conversion sans transformateur qui est ici envisagée, la présence d’un convertisseur DC-DC à haut rendement à fort ratio de conversion est rendue nécessaire de par la caractéristique basse tension fort courant des composants électrochimiques. Avec pour but principal l’optimisation du rendement, deux axes de recherche sont développés. Le premier axe développe un convertisseur multicellulaire innovant à haut rendement à fort ratio de conversion. Les résultats expérimentaux du convertisseur appelé « miroir » obtenus dans deux expérimentations ont démontré la supériorité de cette topologie en terme d’efficacité énergétique par rapport aux convertisseurs conventionnels. Le deuxième axe porte sur de nouveaux composants de puissance en nitrure de gallium (GaN) annoncés comme une rupture technologique. Un convertisseur buck multi-phases illustre les défis technologiques et scientifiques de cette technologie et montre le fort potentiel de ces composants.
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Schittler, Andressa Colvero. "Análise e projeto do conversor buck intercalado para alimentação de lâmpadas de descarga em alta pressão de alta potência." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/8504.

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This work presents a detailed analysis about the interleaved buck converter applied to electronic ballasts to supply high power HID lamps, assuming the input voltage as a PFC stage output. As the output capacitor has a maximum value to be applied in parallel with the lamp, parallel operated converters are a suitable choice because the output current ripple cancellation characteristic. Besides, the output current ripple cannot be greater than 5% of the nominal current to avoid acoustic resonance phenomena. Also, interleaved converters allow magnetic and semiconductors losses reduction. The applied topology was the interleaved buck converter, because its inherent characteritstic of the output as a current source. A generalized model for the IBC operating in CCM was obtained, including inductors and semiconductors losses, besides an analysis to achieve the optimum point of design in terms of efficiency, size and complexity of implementation. To apply the IBC in CCM supplying HID lamps, it is necessary inductors current control, which means to guarantee a current source behavior of the converter. For that, two current control loop were designed, one for each inductor being measured via a shunt resistor located at the circuit input. Also, stability was analyzed based on impedance criterion. Finally, complete electronic ballast was presented, gathering a two-cell IBC, full-bridge inverter, measuring circuits for current and voltage and an external circuit for the correct delay of the IBC MOSFETs gate signals. Obtained experimental results were satisfatory, showing equal current sharing, once warm-up stage and closed-loop implementation were via an 8-bits microcontroller.
Este trabalho apresenta uma análise detalhada do conversor buck intercalado como reator eletrônico aplicado à alimentação de lâmpadas de descarga em alta pressão (HID) de alta potência, assumindo a entrada como a saída de uma etapa de correção de fator de potência (PFC). A característica de diminuição da ondulação da corrente de saída de conversores operando em paralelo é uma grande vantagem, pois o capacitor em paralelo com a lâmpada tem um valor limite a fim de garantir a estabilidade do sistema. Aliada a essa condição, a ondulação de corrente na lâmpada não pode ultrapassar 5% da corrente nominal para garantir que não ocorra o fenômeno da ressonância acústica de forma destrutiva. Além disso, permitem redução de perdas magnéticas e nos semicondutores, além de apresentar diminuição na ondulação da corrente de saída através da defasagem dos sinais de comando dos interruptores, diminuindo o capacitor de saída a ser empregado. Em termos de análise do conversor buck intercalado (IBC), foi obtida uma modelagem generalizada para o conversor operando em modo de condução contínua (CCM) incluindo as perdas nos interruptores, indutores e diodo. Também foi realizada uma análise de ponto ótimo de projeto contemplando tamanho, eficiência e complexidade de implementação. Para a utilização do IBC em CCM na alimentação de lâmpadas HID é necessário o controle de corrente dos indutores, ou seja, garantir que o conversor tenha o comportamento semelhante à uma fonte de corrente. Para tal, foram utilizadas duas malhas de controle de corrente, uma para cada indutor, sendo o sinal de controle medido através de um resistor shunt localizado na entrada do conversor. Ainda, foi apresentada uma análise de estabilidade baseada na relação entre as impedâncias da lâmpada e do conversor, com realimentação em modo corrente. Finalmente, o reator completo foi apresentado, constituído do IBC com duas células, inversor full-bridge, circuito inibidor para defasagem dos sinais de comando do IBC e o circuito de medição das correntes e tensão. Os resultados experimentais obtidos foram satisfatórios, com correntes equilibradas, uma vez que o IBC com malha fechada em ambos os indutores foi implementado com um microcontrolador de 8-bits, com frequência de barramento de 16 MHz.
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Huang, Yan-Hsun, and 黃彥勳. "Interleaved Buck Converter with Soft-Switching Feature." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/y73uz9.

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Abstract:
碩士
國立東華大學
電機工程學系
100
Because of the progress of chip manufacturing technique, the transistor count inside one single CPU increases a lot, which elevates the current necessity of the chip. In order to reduce the power consumption in CPU, the supplied voltage has to be lower down. Therefore, to power CPUs, the voltage regulation modules should be featured with high current output capability at reduced voltage. The purpose of this thesis is to propose a soft-switching interleaved buck converter, which is able to provide high current at reduced output voltage. This converter is composed of several parallel-connected basic buck converter cells, associated with auxiliary capacitors. All the active switches can be soft-switched off to minimize their turn-off switching loss. Besides, synchronous rectification technique is applied to alleviate the conduction loss, which diodes might be suffered at especially high current condition. This is helpful for raising converter efficiency and power density. All the converter cells are designed with the same specification to facilitate the converter’s steady-state analysis and design. At last, a laboratory prototype circuit is built to verify the theory. The experimental results illustrate convincible agreement to theoretical analyses. The highest converter efficiency achieved is 92.5%.
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Book chapters on the topic "Interleaved buck converter"

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Brahim, Lagssiyer, Aziz Abdelhak, and Mohamed El Hafyani. "Interleaved Positive Buck-Boost Converter (I.P.B.B)." In Lecture Notes in Electrical Engineering, 461–69. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1405-6_55.

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Do, Hyun-Lark. "Interleaved Buck-Boost Converter with a Wide Conversion Ratio." In Lecture Notes in Electrical Engineering, 367–70. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27287-5_59.

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Durán, E., M. B. Ferrera, S. P. Litrán, A. J. Barragán, J. M. Enrique, J. M. Andújar, Jorge Semião, Jânio Monteiro, and I. Martins. "An Application of Interleaved Zeta-Buck-Boost Combination Converter in Distributed Generation." In INCREaSE, 291–304. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-70272-8_25.

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Murugappan, K., R. Seyezhai, G. Kishor Sabarish, N. Kaashyap, and J. Jason Ranjit. "Simulation and Analysis of Interleaved Buck DC-DC Converter for EV Charging." In Lecture Notes in Electrical Engineering, 369–80. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7245-6_28.

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Conference papers on the topic "Interleaved buck converter"

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Lin, Bor-Ren, Chau-Shing Wang, Jyun-Ji Chen, and Kun-Liang Shih. "Interleaved PWM active-clamping buck-type converter." In 2010 International Power Electronics Conference (IPEC - Sapporo). IEEE, 2010. http://dx.doi.org/10.1109/ipec.2010.5543843.

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Prasanth, Sangani, Udaya Bhasker Manthati, Vishnu Sidharthan P, and Srinivas Punna. "Efficient Interleaved Buck Converter Driver for LED Applications." In 2019 IEEE International Conference on Sustainable Energy Technologies and Systems (ICSETS). IEEE, 2019. http://dx.doi.org/10.1109/icsets.2019.8744943.

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Cheng-Tao Tsai and Chih-Lung Shen. "Interleaved soft-switching buck converter with coupled inductors." In 2008 IEEE International Conference on Sustainable Energy Technologies (ICSET). IEEE, 2008. http://dx.doi.org/10.1109/icset.2008.4747131.

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Teeula, Afshin Keshtkar, and Shahriyar Kaboli. "A Reliable and Fast Response Buck Converter Based on Interleaved Converter." In 2019 27th Iranian Conference on Electrical Engineering (ICEE). IEEE, 2019. http://dx.doi.org/10.1109/iraniancee.2019.8786512.

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Videau, N., T. Meynard, V. Bley, D. Flumian, E. Sarraute, G. Fontes, and J. Brandelero. "5-phase interleaved buck converter with gallium nitride transistors." In 2013 IEEE Workshop on Wide Bandgap Power Devices and Applications (WiPDA). IEEE, 2013. http://dx.doi.org/10.1109/wipda.2013.6695594.

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Pushpavalli, M., and M. L. Bharathi. "Comparison of interleaved two &three stages buck converter." In 2013 International Conference on Information Communication and Embedded Systems (ICICES 2013). IEEE, 2013. http://dx.doi.org/10.1109/icices.2013.6508222.

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Yao-Ching Hsieh, Yu-Jen Chen, Chin-Sien Moo, and Hung-Liang Cheng. "An interleaved twin-buck converter with zero-voltage-transition." In 2009 IEEE International Conference on Industrial Technology - (ICIT). IEEE, 2009. http://dx.doi.org/10.1109/icit.2009.4939675.

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Cao, Guoen, Arsalan Ansari, and Hee-Jun Kim. "An interleaved buck converter with reduced reverse-recovery problems." In 2014 IEEE International Conference on Industrial Technology (ICIT). IEEE, 2014. http://dx.doi.org/10.1109/icit.2014.6894886.

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Sefa, I., S. Balci, N. Altin, and S. Ozdemir. "Comprehensive analysis of inductors for an interleaved buck converter." In 2012 EPE-ECCE Europe Congress. IEEE, 2012. http://dx.doi.org/10.1109/epepemc.2012.6397274.

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Sanchez, V., F. Chan, Juan M. Ramirez, and Julio C. Rosas-Caro. "Fuel cell emulator based on interleaved synchronous buck converter." In 2012 IEEE Energy Conversion Congress and Exposition (ECCE). IEEE, 2012. http://dx.doi.org/10.1109/ecce.2012.6342214.

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