Academic literature on the topic 'Conversor DC/DC booster'
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Journal articles on the topic "Conversor DC/DC booster"
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Ícaro T. Nogueira, Paulo, André Schlingmann, Lenon Schmitz, Denizar Cruz Martins, and Roberto Francisco Coelho. "SYMMETRIC DIFFERENTIAL DC-DC BUCK-BOOST CONVERTER." Eletrônica de Potência 26, no. 2 (2021): 1–11. http://dx.doi.org/10.18618/rep.2021.2.0049.
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Bosco R. F. Cabral, João, Sérgio Vidal Garcia Oliveira, and Yales Rômulo de Novaes. "Dc-dc Quadratic Boost Converter For Alternative Energy Applications." Eletrônica de Potência 18, no. 3 (2013): 1064–72. http://dx.doi.org/10.18618/rep.2013.3.10641072.
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Flavio Guepfrih, Marcelo, Gierri Waltrich, and Telles Brunelli Lazzarin. "A HIGH STEP-UP QUADRATIC-BOOST-DOUBLE-FLYBACK DC-DC CONVERTER." Eletrônica de Potência 24, no. 3 (2019): 366–77. http://dx.doi.org/10.18618/rep.2019.3.0014.
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Akyazı, Ömür. "GA-BASED FUZZY LOGIC CONTROLLER WITH BOOSTER TYPE DC-DC CONVERTER." e-Journal of New World Sciences Academy 13, no. 1 (2018): 34–43. http://dx.doi.org/10.12739/nwsa.2018.13.1.2a0134.
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Giacomini, Julian, Pablo Costa, António Andrade, Luciano Schuch, and Mário Martins. "Development Of A Boost-forward Dc-dc Converter For High-voltage Gain Applications." Eletrônica de Potência 22, no. 2 (2017): 206–17. http://dx.doi.org/10.18618/rep.2017.2.2675.
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Nery Chaves, Eric, Leandro Sousa Vilefort, and Henrique Tannús de Moura Carvalho. "Internal Model Control Design For P&o-mppt And Dc-dc Quadratic Boost Converter." Eletrônica de Potência 20, no. 4 (2015): 383–94. http://dx.doi.org/10.18618/rep.2015.4.2560.
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Potocny, Miroslav, Martin Kovac, Daniel Arbet, et al. "Low-Voltage DC-DC Converter for IoT and On-Chip Energy Harvester Applications." Sensors 21, no. 17 (2021): 5721. http://dx.doi.org/10.3390/s21175721.
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The power saving issue and clean energy harvesting for wireless and cost-affordable electronics (e.g., IoT applications, sensor nodes or medical implants), have recently become attractive research topics. With this in mind, the paper addresses one of the most important parts of the energy conversion system chain – the power management unit. The core of such a unit will be formed by an inductorless, low-voltage DC-DC converter based on the cross-coupled dynamic-threshold charge pump topology. The charge pump utilizes a power-efficient ON/OFF regulation feedback loop, specially designed for strict low-voltage start-up conditions by a driver booster. Taken together, they serve as the masters to control the charge pump output (up to 600 mV), depending on the voltage value produced by a renewable energy source available in the environment. The low-power feature is also ensured by a careful design of the hysteresis-based bulk-driven comparator and fully integrated switched-capacitor voltage divider, omitting the static power consumption. The presented converter can also employ the on-chip RF-based energy harvester for use in a wireless power transfer system.
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Venktesh, Kakumani Lakshmi, and Sairam Chappidi. "Portable USB Mobile Charger." International Journal of Recent Contributions from Engineering, Science & IT (iJES) 3, no. 3 (2015): 44. http://dx.doi.org/10.3991/ijes.v3i3.4937.
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The purpose of this project was to design, build, and implement an autonomous portable USB charger to charge USB devices. A single IC MAX756 which acts a buck booster was selected to achieve the task. A DC voltage of 3.5V is converted to 5V and fed into the device using the buck boost converter. This will use only the power from the DC AA batteries instead of using the conventional power from the AC mains. This special property of it enables us to charge our gadgets more efficiently with expended range of compatibility.
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Hu, Bo, and Zai Lin Piao. "Research on the System Modeling and Control of Single-Phase Pv Flexible Grid-Connected." Advanced Materials Research 960-961 (June 2014): 1367–70. http://dx.doi.org/10.4028/www.scientific.net/amr.960-961.1367.
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Photovoltaic systems can not meet the needs in the power grid without the impact, due to its penriodicity, intermittent and randomness, thus the key to solve the core technology of photovoltaic power generation system is important to achieve PV grid-connected. This article explains the two-stage topology system control and modeling of single-phase PV grid-connected: Modeling of DC / DC converter provides basis for maximum power point tracking; DC / AC inverter in grid-connected modeling offer efficient communication basis for grid-connected, it research on the control strategies for DC / DC and DC / AC circuit: that PV grid-connected complete alternating current of unit power factor using the booster circuit and inverter control structure, in order to offer photovoltaic systems flexible grid-connected the foundation.
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Skaria, Elezabeth, and Beena M Varghese. "DC-DC booster with cascaded connected multilevel voltage multiplier applied to transformer less converter for high power applications." IOSR Journal of Electrical and Electronics Engineering 9, no. 5 (2014): 73–78. http://dx.doi.org/10.9790/1676-09537378.
Full textDissertations / Theses on the topic "Conversor DC/DC booster"
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Alc?ntara, Sara Maria Freitas de. "Desempenho de um painel fotovoltaico de baixa tens?o, acoplado ao prot?tipo de um conversor dc/dc topologia Booster." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15632.
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Previous issue date: 2010-06-18<br>Low voltage solar panels increase the reliability of solar panels due to reduction of in series
associations the configurations of photovoltaic cells. The low voltage generation requires DCDC
converters devices with high efficiency, enabling raise and regulate the output voltage.
This study analyzes the performance of a photovoltaic panel of Solarex, MSX model 77, configured
to generate an open circuit voltage of 10.5 V, with load voltage of 8.5 V, with short
circuit current of 9 A and a power of 77 W. The solar panel was assembled in the isolated
photovoltaic system configuration, with and without energy storage as an interface with a DCDC
converter, Booster topology. The converter was designed and fabricated using SMD (Surface
Mounted Devices) technology IC (integrated circuit) that regulates its output voltage at
14.2 V, with an efficiency of 87% and providing the load a maximum power of 20.88 W. The
system was installed and instrumented for measurement and acquisition of the following data:
luminosities, average global radiation (data of INPE Instituto Nacional de Pesquisas Espaciais),
solar panel and environment temperatures, solar panel and DC-DC converter output
voltages, panel, inverter, and battery charge output currents. The photovoltaic system was
initially tested in the laboratory (simulating its functioning in ideal conditions of operation)
and then subjected to testing in real field conditions. The panel inclination angle was set at
5.5?, consistent with the latitude of Natal city. Factors such as climatic conditions (simultaneous
variations of temperature, solar luminosities and ra diation on the panel), values of load
resistance, lower limit of the maximum power required by the load (20.88 W) were predominant
factors that panel does not operate with energy efficiency levels greater than 5 to 6%.
The average converter efficiency designed in the field test reached 95%<br>Pain?is solares de baixa tens?o aumentam a confiabilidade dos pain?is solares, devido ? redu??o
das associa??es em s?rie nas configura??es das c?lulas fotovoltaicas. A gera??o em baixa
tens?o requer dispositivos conversores DC/DC de alto rendimento, que possibilitem elevar e
regular a tens?o de sa?da. O presente estudo analisa o desempenho de um painel fotovoltaico
da Solarex, modelo MSX 77, configurado para gerar uma tens?o em aberto de 10,5 V, tens?o
com carga de 8,5 V, com uma corrente de curto-circuito de 9,0 A, e uma pot?ncia de 77
Watts. O painel solar foi montado na configura??o de sistema fotovoltaico isolado, com e sem
armazenamento de energia tendo como elemento de interface um conversor DC-DC, topologia
Booster. O conversor foi projetado e confeccionado com circuitos integrados de tecnologia
Surface Mounted Devices (SMD), para regular tens?o de sa?da em 14,2V, com rendimento
de 87 % , disponibilizando a carga uma pot?ncia m?xima de 20,88W. O sistema foi instalado
e instrumentado para medi??o e aquisi??o dos seguintes dados: luminosidades, radia??es m?dias
globais (dados do Instituto Nacional de Pesquisas Espaciais (INPE)), temperaturas do
painel solar, temperatura ambiente, tens?es de sa?da do painel solar, tens?o de sa?da do conversor
DC-DC, correntes de sa?da do painel, do conversor, da carga e da bateria. O conjunto
fotovoltaico foi inicialmente ensaiado em laborat?rio (simulando seu funcionamento em condi??es
ideais de opera??o) e, em seguida, submetido a testes em condi??es reais de campo. O
?ngulo da inclina??o do painel foi fixado em 5,5?, compat?vel com a latitude da cidade de Natal.
Fatores como condi??es clim?ticas (varia??es simult?neas de altas temperaturas e radia??es
solares), valores da resist?ncia de carga, baixo limite da m?xima pot?ncia solicitada pela
carga (20,88W) foram fatores predominantes para que painel n?o operasse com n?veis de
efici?ncia energ?tica maiores que 5 ? 6 %. O rendimento m?dio do conversor projetado nos
ensaios de campo alcan?ou 95 %
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Aniceto, José Manuel Antunes. "Conversor DC-DC com busca de ponto de potência máxima (MPPT) para painéis solares." Master's thesis, Faculdade de Ciências e Tecnologia, 2010. http://hdl.handle.net/10362/4977.
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Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para a obtenção do grau de Mestre em Engenharia Electrotécnica e de Computadores<br>Nesta dissertação é feito um estudo sobre o processo de conversão da energia retirada dos painéis solares fotovoltaicos em energia compatível com a rede pública de energia eléctrica. O objectivo é conseguir que os painéis fotovoltaicos funcionem sempre no ponto de potência máxima.
São apresentados alguns tipos de células fotovoltaicas, bem como várias configurações possíveis para interligar os painéis fotovoltaicos com a rede eléctrica.
São analisados diversos géneros de conversores DC/DC de forma a verificar qual o tipo de conversor que mais se adequa aos objectivos pretendidos.
É feito um estudo com base no circuito equivalente de um painel fotovoltaico e nas equações que o caracterizam. São apresentadas as curvas características de um painel fotovoltaico e a forma como essas curvas são afectadas pelos factores ambientais. Para uma melhor demonstração do comportamento do painel fotovoltaico, é efectuada uma simulação em MatLab/Simulink.
Para encontrar o ponto de potência máxima é utilizado um método de controlo Maximum power point tracker (MPPT). Neste projecto são expostos alguns métodos, assim como as suas vantagens e desvantagens. É apresentado um novo método de controlo MPPT que foi utilizado neste trabalho.
Com base no painel Bangkok Solar BS-40, foi dimensionado o sistema que permite a ligação à rede pública. Este sistema é composto por: painel fotovoltaico (PV), conversor DC-DC, algoritmo MPPT, modulador sinusoidal com transformador fly-back e ponte inversora de saída.
Finalmente, foi implementado o algoritmo MPPT com recurso a uma PIC, de forma a conseguir realizar testes e obter resultados experimentais.
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Bezerra, Gabriel Ribeiro. "Modeling and control of The DC-DC Buck-Boost converter using parametric identification techniques." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14745.
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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>This work presents procedures for modeling a Buck-Boost converter based on offline parametric identification techniques, with employment of black box and gray box models. For the identification of the control-to-output-voltage transfer function, the nonlinear Hammerstein model is employed, a particularly interesting structure to identify DC-DC converters for its ability to incorporate nonlinear static characteristic aside from the dynamic behavior of the plant. The identification of the mentioned transfer function is achieved from input and output data, obtained in simulations. In order to identify transfer function parameters, a restricted least squares algorithm is used. As for the identification of the control-to-inductor-current transfer function, a linear black box first order model is considered, with its parameters being determined from systemâs frequency response. In order to show the modelâs utility, a control system is designed based on the identified expressions. The control system employed is the digital version of type 3 compensator for the voltage loop and type 2 compensator for the current loop, both operating under or logics. The identification results of the system presented excellent agreement between the obtained parametric models and the converterâs behavior, showing the reliability of the identification techniques employed in this work. Furthermore, the control system designed from the identified transfer functions presented good performance, providing stability and quick disturbance rejection, bolstering the validity of parametric identification methods applied to the Buck-Boost converter.<br>Este trabalho apresenta procedimentos para a modelagem de um conversor Buck-Boost com base em tÃcnicas de identificaÃÃo paramÃtricas offline com emprego de modelos matemÃticos tipo caixa preta e caixa cinza. Para a identificaÃÃo da funÃÃo de transferÃncia que relaciona a tensÃo de saÃda e a razÃo cÃclica, à empregado o modelo nÃo linear de Hammerstein, estrutura particularmente interessante para aplicaÃÃo em identificaÃÃo de conversores CC-CC por incorporar a caracterÃstica estÃtica nÃo linear da planta de forma dissociada ao seu comportamento dinÃmico. A identificaÃÃo da funÃÃo de transferÃncia citada à feita a partir de dados de entrada e saÃda do sistema, medidos em simulaÃÃo. Para determinaÃÃo dos parÃmetros da funÃÃo de transferÃncia que relaciona a tensÃo de saÃda e a razÃo cÃclica, à utilizado um algoritmo de mÃnimos quadrados nÃo recursivo com restriÃÃes. Quanto à identificaÃÃo da funÃÃo de transferÃncia que relaciona a corrente no indutor e a razÃo cÃclica, à empregado um modelo caixa preta linear de primeira ordem, sendo os parÃmetros de tal modelo determinados a partir da resposta em frequÃncia do sistema. Visando mostrar a utilidade dos modelos paramÃtricos, à realizado um projeto de controle com base nas expressÃes identificadas. O sistema de controle adotado à a versÃo digital de um compensador tipo 3 para a malha de tensÃo e de um compensador tipo 2 para a malha de corrente, que operam de forma alternada segundo a lÃgica ou. Os resultados de identificaÃÃo do sistema apresentam uma excelente concordÃncia entre os modelos paramÃtricos obtidos e o comportamento do conversor, mostrando a confiabilidade das tÃcnicas de identificaÃÃo empregadas nesse trabalho. Adicionalmente, o sistema de controle projetado a partir das funÃÃes de transferÃncia estimadas apresentou bom desempenho, garantindo estabilidade e rÃpida rejeiÃÃo a distÃrbios, reforÃando a validade dos mÃtodos de identificaÃÃo paramÃtrica aplicados ao conversor Buck-Boost.
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Silva, Luciano de Souza da Costa e. [UNESP]. "Retificador boost entrelaçado com elevado fator de potência e sem ponte de diodos." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/87091.
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silva_lsc_me_ilha.pdf: 2144752 bytes, checksum: 39f1f729cd628eedd60a6b582fefd576 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Este trabalho propõe um conversor CA-CC, modulado por largura de pulso (PWM), de elevado fator de potência, dotado de um controle variável da razão cíclica. O estágio de potência do conversor pré-regulador do fator de potência (PFP) proposto é composto por múltiplas células entrelaçadas. A integração das técnicas de entrelaçamento (interleaving) à técnica de eliminação da ponte retificadora da entrada (bridgeless) busca diminuir as perdas de energia e distribuir os esforços de corrente nos semicondutores da estrutura conversora de potência. O levantamento bibliográfico foi realizado com intuito de analisar resultados e características de conversores CA-CC baseados em estruturas PFP boost modificadas. Comparações foram realizadas levando em consideração as características de distorção harmônica, fator de potência, complexidade do circuito de controle, eficiência energética, esforços nos semicondutores de potência e emissão de interferência eletromagnética (IEM). O conversor proposto é então equacionado e os valores dos componentes acumuladores de energia determinados são escritos como função das especificações de projeto. Análises gráficas indicam o comportamento da distorção harmônica e do fator de potência da estrutura atuando em diferentes níveis de tensão. Simulações são realizadas como forma de comprovar a eficácia do sistema conversor no que se refere à correção do fator de potência e à distribuição dos esforços nos semicondutores de potência. Os principais resultados estão dispostos em tabelas comparativas, que indicam um fator de potência praticamente unitário. O sistema de regulação da tensão saída, testado via simulação computacional, apresenta resultados que demonstram boa dinâmica na resposta transitória e erro nulo a regime frente às variações de carga e afundamentos na...<br>This paper proposes an AC-DC converter, pulse width modulated (PWM) with high power factor and a variable duty cycle control. The power factor preregulator (PFP) converter proposed is composed of multiple bridgeless boost interleaved cells. The integration of these techniques allows a reduction in the energy losses and sharing the stress in power semiconductors. The literature review was performed in order to analyze the results and characteristics of AC-DC converters based on modified PFC boost structures. Comparisons were made taking into account the characteristics of harmonic distortion, power factor, complexity of control circuitry, energy efficiency, current stress in power semiconductors, and emission of electromagnetic interference (EMI). The proposed converter is mathematically equated and the values of the reactive components are written as a function of design specifications. Graphical analysis indicates the behavior of harmonic distortion and power factor of the structure at different voltage levels. Simulations are performed in order to demonstrate compliance of the converter system with respect to the power factor correction and distribution efforts in the power semiconductors. The main results are arranged in comparative tables which indicate power factor very closed to unity. The control system applied to the converter was evaluated through the computer simulations which showed good dynamics at transient response and null steady-state error faced to load variations and sags in the voltage supply. The prototype for the power stage implemented in the laboratory operated according... (Complete abstract click electronic access below)
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Sobreira, Júnior Pedro de Assis. "Conversor CC-CC boost entrelaçado aplicado no processamento da energia de arranjo solar fotovoltaico." Universidade Federal de Juiz de Fora (UFJF), 2011. https://repositorio.ufjf.br/jspui/handle/ufjf/2453.
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Previous issue date: 2011-09-09<br>CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Este trabalho apresenta o estudo e avaliação experimental do controle de uma topologia de conversor CC-CC boost entrelaçado aplicado em sistemas de geração solar fotovoltaica. A análise comparativa das duas principais técnicas de rastreamento de máxima potência possibilitou elucidar se o método de controle por tensão ou corrente terminal do painel solar fotovoltaico apresentam diferença significativa na eficiência do processo de conversão de energia solar em eletricidade. A estrutura de conversor elevador de tensão entrelaçado possibilita mitigar o efeito do sombreamento parcial em arranjos fotovoltaicos, reduzir o dimensionamento dos elementos passivos e prover rápida resposta transitória. Resultados de simulação e experimentais usando um Controlador Digital de Sinais comprovam o potencial da estrutura estudada para o condicionamento de energia em arranjos solares fotovoltaicos.<br>This work presents the study and experimental evaluation of the control of an interleaved boost DC-DC converter topology used in solar photovoltaic generation systems. The comparative analysis of two major techniques for tracking maximum power point allowed to elucidate whether the method of control by terminal photovoltaic voltage or current show significant difference in the efficiency of converting solar energy into electricity. The boost interleaved converter allows mitigating the effect of partial shading on photovoltaic arrays, reducing sizing of passive elements and providing fast transient response. Simulation and experimental results using a Digital Signal Controller demonstrate the potential of the studied structure for power conditioning in photovoltaic solar arrays.
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Cabral, João Bosco Ribeiro Fernandes. "Conversor CC-CC Não isolado de elevado ganho para aplicação no processamento de energia solar fotovoltaica." Universidade do Estado de Santa Catarina, 2013. http://tede.udesc.br/handle/handle/2075.
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Previous issue date: 2013-03-06<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This Master Thesis proposes a high gain non-isolated DC-DC converter applied on the processing of PV energy. The proposed converter is a boost converter with quadratic characteristic and with central point at its output. Basic operations and electric characteristics of a PV cell are described, including the procedures to determine its parameters. A model for numeric simulation is presented. A review of the high gain non-isolated DC-DC converters topologies is presented. Shows the converter´s transfer functions and the control strategy adopted as well as the design of control circuits. The control system is consisting of three loops, an internal loop of input current control, an external loop of total output voltage control and an additional loop of voltage unbalance control. The simulation and experimental results are shown to validate the analysis developed and demonstrate the performance of the control system adopted.<br>Esta Dissertação de Mestrado propõe um conversor CC-CC não isolado de elevado ganho para aplicação no processamento de energia solar fotovoltaica. O conversor proposto é um boost com característica quadrática e com ponto médio na sua saída. Descrevem-se o funcionamento básico e as características elétricas de uma célula fotovoltaica, incluindo-se o procedimento da determinação dos parâmetros e da modelagem dos módulos fotovoltaicos, apresentando-se um modelo para simulação numérica. Apresenta-se uma revisão de topologias de conversores CC-CC não isolados com elevado ganho estáticos. Apresentam-se as funções de transferência do conversor e a estratégia de controle adotada bem como o projeto dos circuitos de controle. O sistema de controle composto por três malhas de controle, uma malha interna de corrente de entrada, uma malha externa de tensão total e uma malha adicional de equalização de tensão. Resultados de simulação e experimentais são apresentados para validar as análises desenvolvidas e demonstrar o desempenho do sistema de controle adotado.
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Silva, Luciano de Souza da Costa e. "Retificador boost entrelaçado com elevado fator de potência e sem ponte de diodos /." Ilha Solteira : [s.n.], 2011. http://hdl.handle.net/11449/87091.
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Orientador: Falcondes Jose Mendes de Seixas<br>Banca: Guilherme de Azevedo e Melo<br>Banca: Jurandir de Oliveira Soares<br>Resumo: Este trabalho propõe um conversor CA-CC, modulado por largura de pulso (PWM), de elevado fator de potência, dotado de um controle variável da razão cíclica. O estágio de potência do conversor pré-regulador do fator de potência (PFP) proposto é composto por múltiplas células entrelaçadas. A integração das técnicas de entrelaçamento (interleaving) à técnica de eliminação da ponte retificadora da entrada (bridgeless) busca diminuir as perdas de energia e distribuir os esforços de corrente nos semicondutores da estrutura conversora de potência. O levantamento bibliográfico foi realizado com intuito de analisar resultados e características de conversores CA-CC baseados em estruturas PFP boost modificadas. Comparações foram realizadas levando em consideração as características de distorção harmônica, fator de potência, complexidade do circuito de controle, eficiência energética, esforços nos semicondutores de potência e emissão de interferência eletromagnética (IEM). O conversor proposto é então equacionado e os valores dos componentes acumuladores de energia determinados são escritos como função das especificações de projeto. Análises gráficas indicam o comportamento da distorção harmônica e do fator de potência da estrutura atuando em diferentes níveis de tensão. Simulações são realizadas como forma de comprovar a eficácia do sistema conversor no que se refere à correção do fator de potência e à distribuição dos esforços nos semicondutores de potência. Os principais resultados estão dispostos em tabelas comparativas, que indicam um fator de potência praticamente unitário. O sistema de regulação da tensão saída, testado via simulação computacional, apresenta resultados que demonstram boa dinâmica na resposta transitória e erro nulo a regime frente às variações de carga e afundamentos na... (Resumo completo, clicar acesso eletrônico abaixo)<br>Abstract: This paper proposes an AC-DC converter, pulse width modulated (PWM) with high power factor and a variable duty cycle control. The power factor preregulator (PFP) converter proposed is composed of multiple bridgeless boost interleaved cells. The integration of these techniques allows a reduction in the energy losses and sharing the stress in power semiconductors. The literature review was performed in order to analyze the results and characteristics of AC-DC converters based on modified PFC boost structures. Comparisons were made taking into account the characteristics of harmonic distortion, power factor, complexity of control circuitry, energy efficiency, current stress in power semiconductors, and emission of electromagnetic interference (EMI). The proposed converter is mathematically equated and the values of the reactive components are written as a function of design specifications. Graphical analysis indicates the behavior of harmonic distortion and power factor of the structure at different voltage levels. Simulations are performed in order to demonstrate compliance of the converter system with respect to the power factor correction and distribution efforts in the power semiconductors. The main results are arranged in comparative tables which indicate power factor very closed to unity. The control system applied to the converter was evaluated through the computer simulations which showed good dynamics at transient response and null steady-state error faced to load variations and sags in the voltage supply. The prototype for the power stage implemented in the laboratory operated according... (Complete abstract click electronic access below)<br>Mestre
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Fuzato, Guilherme Henrique Favaro. "Análise de um conversor boost interleaved com multiplicador de tensão para sistemas de geração distribuída que utilizam células a combustível como fonte primária." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18153/tde-13102015-152550/.
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Esta dissertação aborda aspectos gerais relativos à utilização de um conversor CC-CC que opera conectado à rede de distribuição e que emprega como fonte primária células a combustível. Neste trabalho, a modelagem matemática em espaços de estados (pequenos sinais e média) dos conversores Boost e Boost Interleaved com Multiplicador de Tensão (IBVM), assim como as arquiteturas de controle utilizadas em modo tensão, corrente média e corrente de pico são comparadas para determinar qual delas apresenta melhor desempenho. Devido ao fato das células a combustível apresentarem tensão terminal baixa e corrente terminal elevada, há a necessidade de utilizar conversores eletrônicos com alto ganho para equalizar a tensão produzida pela fonte com o nível de tensão presente na rede de distribuição. Tendo isso em vista, este trabalho mostra uma análise do ganho estático de tensão do conversor Boost e IBVM considerando os efeitos das resistências parasitas dos componentes utilizados e da carga conectada nos terminais de saída do conversor. Como resultado da modelagem matemática do ganho, é mostrado um conjunto de equações que definem o valor mínimo de resistência do semicondutor de potência, indutor, capacitor do multiplicador de tensão e a máxima carga que os conversores Boost e Boost Interleaved com Multiplicador de Tensão podem suprir. Por fim, os resultados experimentais são apresentados com o intuito de validar os resultados teóricos e de simulação obtidos.<br>This thesis addresses general aspects concerning the application of DC-DC converters applied to a grid connected Fuel Cell system. It is discussed in this thesis the averaged and small signals space state modeling of the Boost and Interleaved Boost with Voltage Multiplier (IBVM) converter, it is also mentioned the control architectures in voltage mode, average current mode and peak current mode. The voltage and average current mode control architectures are simulated and implemented in hardware in order to be compared. Due to the fact that Fuel Cells present low terminal voltage and high current, it is needed to use high gain DC-DC converters with the aim connect the system to the grid. This thesis also presents an approach in the analysis of DC-DC converter static voltage gain considering the effect of the parasitic resistances and the load connected to the converter terminals. As a result of the gain analysis, it is presented a set of equation, from which is possible to determine the maximum value of the parasitic resistances for the switch, inductor and capacitor of the voltage multiplier. It is also calculated the maximum value of load connected to the Boost and Interleaved Boost with Voltage Multiplier converters with the aim to present the designed voltage gain. Additionally, by the maximum load value calculated it is possible to determine the maximum power that the converter will be capable to process, considering a specific point of operation. Finally, the designed DC-DC converter is implemented with the aim to validate the theoretical and simulation results.
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JÃnior, Josà Ailton LeÃo Barboza. "A Double boost converter with PFC and series/parallel input connection for uninterrupted power system." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16257.
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fator de potÃncia e recurso para operar com dois valores de tensÃo de entrada. O mesmo à aplicÃvel a sistemas ininterruptos de energia do tipo dupla conversÃo ou on-line com caracterÃsticas de tensÃo de entrada bivolt (110 Vca e 220 Vca) e desta maneira à descartada a
utilizaÃÃo de um autotransformador com seletor de tensÃo. O conversor em estudo à composto por dois conversores CA-CC boost clÃssicos, em que, para uma tensÃo de entrada de 110 Vca as entradas sÃo conectadas em paralelo e para uma tensÃo de entrada de 220 Vca as entradas sÃo conectadas em sÃrie. A ideia à fazer com que se tenha uma divisÃo equilibrada na entrada de cada conversor quando a tensÃo da rede elÃtrica for 220 Vca. Assim cada conversor boost
clÃssico recebe metade da tensÃo total de alimentaÃÃo do conversor proposto. A estratÃgia de controle à baseada no controle por modo corrente mÃdia aplicada a ambos os conversores para proporcionar a correÃÃo do fator de potÃncia e a regulaÃÃo da tensÃo de saÃda. Para verificar o estudo teÃrico foi desenvolvido o projeto do circuito de potÃncia e controle validando atravÃs de resultados de simulaÃÃo e experimentais para um protÃtipo de 2,4 kW. Para a conexÃo paralelo e sÃrie das entradas, os resultados obtidos foram satisfatÃrios e o conversor operou adequadamente.<br>This work presents a study of a Double Boost AC-DC Converter with power factor correction and dual input voltage operation capability via a selector switch. Such converter can be applied to on-line uninterruptible power supplies with dual voltage input characteristics, this
way avoiding the usage of a low frequency autotransformer. The studied structure is composed by two AC-DC classical boost converters, in which for input voltage of 110 Vac
both its inputs are connected in parallel, and, for 220 Vac, they are connected in series. The control strategy is based in the average current mode control applied to both converters, in order to provide the power factor correction and output voltage regulation. Simulation and experimental results for 2.4 kW are presented, and so are validate the theoretical study and design. Connecting the inputs in parallel and series, the results were satisfactory and the
converter operated properly.
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Fernandes, Rodolfo Castanho [UNESP]. "Retificador trifásico de 18 pulsos com estágio CC controlado por histerese constante." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/87117.
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fernandes_rc_me_ilha.pdf: 1607084 bytes, checksum: d60bd1d35a36564730a6c9f6b43790ab (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Este trabalho propõe um novo conversor CA-CC trifásico de múltiplos pulsos com estágios CC-CC elevadores de tensão controlados pela técnica de histerese constante. Nesta proposta não são empregados indutores de interfase. A finalidade deste conversor é a de possibilitar um barramento CC regulado para aplicações embarcadas, acionamentos elétricos e afins, sempre com preocupações relacionadas aos aspectos de Qualidade de Energia Elétrica. Assim, a proposta deve apresentar elevado fator de potência, baixa distorção harmônica total de corrente drenada da rede elétrica. Ampla revisão bibliográfica, reunindo as propostas mais recentes da literatura para conversores com mesma finalidade, é feita para que sejam estudadas as estruturas de potência, técnicas de controle, versatilidade, possibilidade de isolamento galvânico e robustez. Em seguida, é detalhada a proposta principal deste trabalho por meio da apresentação do equacionamento do autotransformador, dos estágios elevadores de tensão e da técnica de controle. Esta análise permite que sejam feitas simulações com todos os elementos do conversor CA-CC e então, se desenvolva o projeto físico dos elementos magnéticos e se escolham os componentes eletrônicos do protótipo. O número reduzido de componentes de controle e a simplicidade dos circuitos de potência são grandes atrativos da proposta discutida. Todas as informações relevantes são descritas detalhadamente e, sempre que possível, meios alternativos de solucionar problemas são também apresentados, de forma que fiquem claras as possibilidades de melhoria da técnica empregada. A operação conjunta de todos os elementos mais a técnica de controle foi validada, de maneira que se comprovou, por meio de ensaios, todos os princípios de funcionamento da proposta de conversor CA-CC. Pelos resultados experimentais, obteve-se corrente drenada...<br>This work proposes a new AC-DC three-phase multipulse converter with DC-DC boost stages and constant hysteresis control. The objective of this converter is to provide a reliable DC bus for on-board applications, electric motor drives and similars, always considering power quality issues. Thus, the proposal presents high power factor and low harmonic distortions in the currents from the mains. A wide revision is made on other recent proposals found in the scientific literature. Different topologies are compared considering power circuits, control techniques, isolation possibility and robustness. The second chapter presents the details on the main proposal of this work and also the mathematical equations that describe the autotransformer, boost converters and control strategy. Later, simulation results are commented and discussed and the physical design is detailed. The output filter elements, power components and control elements are specified. Experimental results including main waveforms, efficiency, voltage regulation and temperature rise are presented for the autotransformer. The boost stages are also tested and its results are discussed. Finally, the proposed AC-DC converter is tested and the control technique applied to the power stage is validated
Books on the topic "Conversor DC/DC booster"
Book chapters on the topic "Conversor DC/DC booster"
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Severns, Rudolf P., and Gordon Ed Bloom. "The Boost Converter." In Modern DC-to-DC Switchmode Power Converter Circuits. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-011-8085-6_3.
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Wu, Keng C. "Boost Converter in Continuous Conduction Mode." In Pulse Width Modulated DC-DC Converters. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-6021-0_11.
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Severns, Rudolf P., and Gordon Ed Bloom. "Boost-Derived Circuits." In Modern DC-to-DC Switchmode Power Converter Circuits. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-011-8085-6_6.
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Marne, Vaibhav, and K. Vadirajacharya. "Performance Verification of DC–DC Boost Converter." In Advances in Intelligent Systems and Computing. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1513-8_67.
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Umarani, D., and R. Seyezhai. "Reliability Modeling of Multiphase DC–DC Boost Converter." In Advances in Energy Research, Vol. 2. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2662-6_71.
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Chapparya, Vaishali, Prakash Dwivedi, and Sourav Bose. "Multiphase DC-DC Boost Converter: Introduction to Controller Design." In Transactions on Engineering Technologies. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9808-8_4.
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Wens, Mike, and Michiel Steyaert. "A Mathematical Model: Boost and Buck Converter." In Design and Implementation of Fully-Integrated Inductive DC-DC Converters in Standard CMOS. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1436-6_4.
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Sakthidhasan, K., and K. Mohana Sundaram. "Dual-Input Multioutput Using Non-Cloistered DC–DC Boost Converter." In Lecture Notes in Electrical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2256-7_12.
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Madni, Zineb, Kamel Guesmi, and Atallah Benalia. "Backstepping Control of Abnormal Behaviours in DC-DC Boost Converter." In Advanced Control Engineering Methods in Electrical Engineering Systems. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97816-1_1.
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Cervone, Andrea, and Gianluca Brando. "Input-State Feedback Linearization of a Boost DC/DC Converter." In Lecture Notes in Electrical Engineering. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37161-6_11.
Full textConference papers on the topic "Conversor DC/DC booster"
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Chao, Paul C. P., Ching-Hua Kuan, and Jia-Wei Su. "An Optimized On-Chip Boost-Type DC-DC Converter With an On-Board Inductance." In ASME 2014 Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/isps2014-6967.
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The rapid development of portable electronic products in recent years increases demands of varied displays. With resolutions of panel sizes and pixels under current drive capability improved, this study is intended for designing an inductive DC boost converter circuit for displays, which is fully integrated with IC fabrication technology [1][2]. Most of current displays employ capacitances for voltage-boosting to supply relative high-voltage biases to displays. These booster circuits are in small sizes and with high efficiency, but limited output currents, which are inadequate for some of large-sized displays. To remedy the problem, an on-board, small-sized inductor in the forms of coils in a printed circuit board (PCB) is proposed for a superior solution. This PCB-type inductor can be incorporated into the same board with other drive chips for the displays, while offering large, adequate current, as an incapable task via an on-chip coil.
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HOCH, HENRIQUE JAHNKE, TIAGO MIGUEL KLEIN FAISTEL, ADEMIR TOEBE, and ANTóNIO MANUEL SANTOS SPENCER ANDRADE. "Conversor Doubler Output Coupled Inductor para Aplicações de Fontes Alternativas." In Seminar on Power Electronics and Control (SEPOC 2021). sepoc, 2021. http://dx.doi.org/10.53316/sepoc2021.003.
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High step-up DC-DC converters are necessary in photovoltaic energy generation, due the low voltage of the panels source. This article propose the Doubler Output Coupled Inductor converter. This converter is based in boost converter and utilize switched capacitors and a coupled inductor to maximize the static voltage gain. The converter achieve a high voltage gain with low turns ratio in the coupled inductor and an acceptable duty cycle. Can highlight the converter utilize low number of components and have low voltage and current stresses in semiconductors. To validate and evaluate the operation of the converter a 200W prototype is simulated.
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Tou, Ngobou, Rossi, Al-Haddad, and Rajagopalan. "New three-phase AC-DC convertor of booster type with unity power factor." In Proceedings of Canadian Conference on Electrical and Computer Engineering CCECE-94. IEEE, 1994. http://dx.doi.org/10.1109/ccece.1994.405672.
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Sadaf, Shima, Nasser Al-Emadi, Atif Iqbal, Mohammad Meraj, and Mahajan Sagar Bhaskar. "A Novel Modified Switched Inductor Boost Converter with Reduced Switch Voltage Stress." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0090.
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DC-DC power converters are necessary to step-up the voltage or current with high conversion ratio for many applications e.g. photovoltaic and fuel cell energy conversion, uninterruptible power supply, DC microgrid, automobile, high intensity discharged lamp ballast, hybrid vehicle, etc. in order to use low voltage sources. In this project, a modified SIBC (mSIBC) is proposed with reduced voltage stress across active switches. The proposed mSIBC configuration is transformerless and simply derived by replacing one diode of the classical switched inductor structure with an active switch. As a result, mSIBC required low voltage rating active switches, as the total output voltage is shared between two active switches. Moreover, the proposed mSIBC is low in cost, provides higher efficiency and required the same number of components compared to the classical SIBC. The experimental results are presented which validated the theoretical analysis and functionality, and the efficiency of the designed converter is 97.17%. The proposed mSIBC converter provides higher voltage conversion ratio compared to classical converters e.g. boost, buck-boost, cuk, and SEPIC. The newly designed configurations will aid the intermediate power stage between the renewable sources and utility grid or high voltage DC or AC load. Since, the total output voltage is distributed among the two active switches, low voltage rating switches can be employed to design the power circuit of the proposed converter. The classical boost converter or recently proposed switched inductor based boost converter can be replaced by the proposed mSIBC converter in real-time applications such as DC microgrid, DC-DC charger, battery backup system, UPS, EV, an electric utility grid. The proposed power circuitry is cost effective, compact in size, easily diagnostic, highly efficient and reliable.
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Anzicek, Joshua, and Mark Thompson. "Power Converter and Control Interface for a GEM Fuel Cell Vehicle." In ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2005. http://dx.doi.org/10.1115/fuelcell2005-74159.
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In this paper, we discuss the design and performance of a low cost, fully integrated power conversion and control system for a modified Global Electric Motors (GEM) fuel cell hybrid vehicle. The need for a custom converter and control system has become apparent as the commercial DC-DC market seems to have a void in the ranges of power and voltage required for fuel cell vehicle applications. The system incorporates a custom designed DC-DC boost converter which steps up the nominal 26 VDC fuel cell stack voltage to interface with the 72 VDC vehicle battery bus at an input power level of 1.2 kW. Additionally, several embedded control functions are implemented to integrate a Ballard Nexa™ fuel cell power module into the GEM vehicle. Design equations supported by preliminary performance data indicates that the DC-DC power converter achieves a conversion efficiency approaching 98% for a single fuel cell power module operating at full output power (1.2kW). The high efficiency allows for a simple and flexible air-cooled design with minimal heat sink requirements and cooling system weight. The control system incorporates algorithms to perform battery charging and power ramp rate, as well as fuel cell voltage, and current limiting algorithms. The control system exhibits stable performance characteristics throughout the entire vehicle load range and battery state of charge range, while tracking vehicle transient conditions.
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Burra, R. K., and Sudip K. Mazumder. "A Low-Cost Solid Oxide Fuel Cell (SOFC) Power Conditioner for Residential Utility." In ASME 2004 2nd International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2004. http://dx.doi.org/10.1115/fuelcell2004-2463.
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We describe a low-cost power-electronics system (PES) for a solid-oxide fuel cell (SOFC) power system which achieves an efficiency η > 93%. The PES comprises of a DC/DC boost converter followed by a soft-switched multi-level high-frequency (HF) inverter and an AC/AC converter. The DC/DC converter comprises zero-ripple boost inductor, which reduces the switching current ripple of the SOFC-stack output current, thereby, possibly improving the durability of the SOFC. Additionally, the design of the inductor yields higher power at a reduced cost. Finally, preliminary experimental results and efficiency estimates for individual subsystems of the PES are demonstrated.
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Wei, Yijin, and Denise A. McKahn. "Minimization of Stack Mass in Miniature PEM Fuel Cell Systems With DC/DC Converters." In ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2017 Power Conference Joint With ICOPE-17, the ASME 2017 11th International Conference on Energy Sustainability, and the ASME 2017 Nuclear Forum. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fuelcell2017-3713.
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Polymer electrolyte membrane (PEM) fuel cells have been explored as a clean battery replacement in portable and miniature applications where total system mass and specific energy density (Wh/kg) are critical design constraints. By coupling a boost (step-up) DC/DC converter with a miniature PEM fuel cell stack, the total power system mass can be reduced while providing voltage regulation capabilities not available with a fuel cell alone. This configuration is applied to the design of a controlled meteorological (CMET) balloon power system as a case-study. In this work, we designed and tested three different micro-power DC/DC boost converters that were deployed in series with a PEM fuel cell stack. Testing of the converters revealed a transition region in which the converter output voltage is hysteretic, not well regulated, and dependent on the input voltage. As a result, it is important to identify the minimal stable and reliable input voltage to a given DC/DC converter in order to minimize the fuel cell power system mass. An optimization strategy is presented here that enables the minimization of PEM fuel cell stack mass by identifying the appropriate DC/DC converter input voltage subject to the dimension constraints of the fuel cell components. Prototype DC/DC converters were then experimentally tested in direct connection to a miniature two-cell PEM fuel cell stack.
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Musale, Ashwini S., and Bapusaheb T. Deshmukh. "Three level DC-DC boost converter for high conversion ratio." In 2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT). IEEE, 2016. http://dx.doi.org/10.1109/iceeot.2016.7754759.
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Gursoy, Mehmetcan, Andy G. Lozowski, and Xin Wang. "Power Electronics Sliding Mode Control Design for Photovoltaic Energy Conversion Systems." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10110.
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Abstract The manuscript presents a novel power electronics sliding mode control design for photovoltaic energy conversion systems. In order to maximize the power generation from solar panels, P&O maximum power point tracking algorithm is applied. The purposed first and high-order sliding mode control techniques are developed to overcome the irradiance and load fluctuation challenge, and to optimize the power conversion efficiency. Compared with the first-order method, the higher-order sliding mode approach can significantly reduce the chattering effect in the Buck-Boost converter. The output of the DC-DC converter is then fed into a voltage-oriented control based SVPWM inverter for three-phase AC power generation. Computer simulation studies have shown the effectiveness and robustness of the proposed power electronics control approach for solar energy systems.
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Zhou, Xiao, and Sung-Yeul Park. "Design and Analysis of a Direct Borohydride Fuel Cell DC-DC Converter for Portable Applications." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33279.
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Due to high power density and reactivity compared with the use of gaseous hydrogen as the fuel, direct borohydride fuel cell (DBFC) is becoming an emerging renewable energy source. In this paper, DBFC characteristic is analyzed based on the frequency response measurement and test with different load conditions. The equivalent circuit of DBFC is obtained from the DBFC characteristic. A dc-dc converter is designed from the frequency domain and verified its performance at time domain with transient load test. Based on the combined model analysis of DBFC and the dc-dc converter, transient response of the model is discussed. In addition, load transient response tests with power supply and DBFC have been compared. A prototype of dc-dc boost converter for 5-cell DBFC has been built and tested.