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Dissertations / Theses on the topic 'DC/DC bidirectional converter'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

Wallberg, Alexander. "Design and construction of a bidirectional DC/DC converter." Thesis, Uppsala universitet, Elektricitetslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-385240.

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A four quadrant general single-phase bi-directional DC/DC converter was designed and constructed for high effect systems. The target application for the DC/DC converter was to be used to transfer energy between different energy storages, a miniature DC power grid and the high voltage AC power city grid. The converter is capable of step-up and step-down operations in both directions i.e. it is bi-directional at varying voltage levels. Different DC/DC topologies were investigated, and thereafter simulations were performed in LTspice and Simulink to ensure its capabilities and functionalities. Th

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2

Mohd, Mukhtar Nurhakimah. "Efficiency Improvement Techniques for Isolated Flyback and Forward Bidirectional DC-DC Converters." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/23127.

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The information age introduced myriad means for individuals and organisations to stay connected and feel informed. Among those means, email arose as one of the most successful and ubiquitous communication technologies to be enabled via internet access. Today it continues to grow in both the volume of traffic and users each year. We now know that this has resulted in an overabundance of information, which is proving difficult for people to mentally process and productively manage. This is known as “Information overload” and email’s part in this has been termed “email overload”. Among this surpl

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3

Zhang, Junhong. "Bidirectional DC-DC Power Converter Design Optimization, Modeling and Control." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/26126.

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In order to increase the power density, the discontinuous conducting mode (DCM) and small inductance is adopted for high power bidirectional dc-dc converter. The DCM related current ripple is minimized with multiphase interleaved operation. The turn-off loss caused by the DCM induced high peak current is reduced by snubber capacitor. The energy stored in the capacitor needs to be discharged before device is turned on. A complementary gating signal control scheme is employed to turn on the non-active switch helping discharge the capacitor and diverting the current into the anti-paralleled diode

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4

Ramasamy, Thaiyal Naayagi. "Bidirectional DC-DC converter for aircraft electric energy storage systems." Thesis, University of Manchester, 2010. https://www.research.manchester.ac.uk/portal/en/theses/bidirectional-dcdc-converter-for-aircraft-electric-energy-storage-systems(34423ae1-ebfb-48bd-a66d-fd03b45615e7).html.

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Future aircraft are likely to employ electrically powered actuators for adjusting flight control surfaces, and other high power transient loads. To meet the peak power demands of aircraft electric loads and to absorb regenerated power, an ultracapacitor-based energy storage system is examined in which a bidirectional dual active bridge DC-DC converter is used. This Thesis deals with the analysis, design, development and performance evaluation of the dual active bridge (DAB) converter, which can act as an interface between the ultracapacitor energy storage bank and the aircraft electrical power

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Chu, Alex. "Evaluation and Design of a SiC-Based Bidirectional Isolated DC/DC Converter." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/81994.

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Galvanic isolation between the grid and energy storage unit is typically required for bidirectional power distribution systems. Due to the recent advancement in wide-bandgap semiconductor devices, it has become feasible to achieve the galvanic isolation using bidirectional isolated DC/DC converters instead of line-frequency transformers. A survey of the latest generation SiC MOSFET is performed. The devices were compared against each other based on their key parameters. It was determined that under the given specifications, the most suitable devices are X3M0016120K 1.2 kV 16 mohm and C3M001009

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6

Melo, Rodnei Regis de. "Bidirectional interleaved dc-dc converter applied to supercapacitors for electric vehicles." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12327.

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nÃo hÃ<br>The electric vehicle is increasingly present in our cities every day, and in the technological context it has shown great progress. Two essential elements to the success of these vehicles are the electric energy storage devices and electronic converters for processing and management of this energy. In this context, this dissertation presents a study on the current situation of the electric vehicle on the world scenario and its embedded technologies. Another object of research are supercapacitors for application in electric vehicles as an energy storage source and fast energy transfer

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7

Mayes, Peter Richard. "A novel AC/DC bidirectional power converter." Thesis, University of Nottingham, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239439.

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8

Mazza, Luan Carlos dos Santos. "Single phase bidirectional DAB DC-DC converter based on three state switching cell." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14412.

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This work presented is DC-DC isolated ZVS Bidirectional Dual Active Bridge (DAB) single phase converter, based three-state switching cell is presented. The proposal is to apply it in photovoltaic systems with battery bank into smart networks. Basically the drive control is the duty cycle (D) of the switches and the Phase Shift (φ) of the fundamental tensions between the bridges. The gyrator modeling of the converter is presented, highlighting its natural operating characteristic as gyrator. Shows the qualitative and quantitative analysis of the converter, realizing the full study of the s

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9

Rezaee, Ali. "WIDE RANGE BI-DIRECTIONAL DC-DC CONVERTER." Thesis, Mittuniversitetet, Institutionen för elektronikkonstruktion, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-41189.

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Bi-directional DC-DC converters are used for applications that require a flow of energy in two directions, while a wide range converter offer efficient operation over a wide range of input and output voltages. However, an efficient technology that is both bi-directional and Wide Input Wide Output (WIWO), currently, does not currently exist. To find a suitable topology, the work began by surveying the existing literature and when a potentially suitable solution was identified, it was evaluated via simulation. Using a wide range, unidirectional topology as the starting point, a converter top

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10

Han, Sangtaek. "High-power bi-directional DC/DC converters with controlled device stresses." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/49010.

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The objective of the research is to develop a cost-effective high-power bi-directional dc/dc converter with low total-device ratings, reduced system parasitic effects, and a wide input/output range. Additional objectives of the research are to develop a small-signal model and control methods, and to present performance characterizations. Device stresses in the proposed topology are controlled to maintain minimal levels by varying the duty ratio and phase-shift angle between the primary and the secondary bridges, which results in a low total-device rating, when compared to conventional bi-direc

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11

Hedlund, Magnus. "Design and construction of a bidirectional DCDC converter for an EV application." Thesis, Uppsala University, Electricity, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-119916.

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<p>A Sliding Mode Control System for a Bidirectional DCDC Converter was designed and a low voltage prototype was constructed. The control system based its decisions solely on the latest available measurements, which improves performance when changing operative quadrant, since no memory needs reinitializing (such as for PI and state prediction methods). A boost control philosophy was presented, based on a current source approximation. The control was found to be stable without steady-state errors when the variance of the input/output dynamics was high.</p><p>The target application for the DCDC

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12

Enomoto, Bruno Yukio. "Conversores DC-DC Dual-Active-Bridge isolados bidirecionais." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-17072018-092952/.

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Este trabalho visa o estudo das regiões de operação de conversores CC/CC isolados bidirecionais do tipo DAB (Dual Active Bridge). É feito um estudo do comportamento do circuito com a variação dos valores das reatâncias de acoplamento, avaliando-se aspectos como eficiência, fator de potência, reativos, entre outros. A seguir é proposta uma estrutura de controle que permite a operação com tensões nos barramentos DC diferentes das nominais, minimizando as correntes absorvidas. Além disso, propõe-se uma estratégia de controle para regular a potência transferida. O trabalho inclui modelagem teórica

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13

Albiol, Tendillo Laura. "Design and control of a bidirectional dc/dc converter for an electric vehicle application." Doctoral thesis, Universitat Rovira i Virgili, 2015. http://hdl.handle.net/10803/312829.

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L’objectiu d’aquesta tesi és desenvolupar una solució pel convertidor DC/DC del sistema de tracció d’un vehicle elèctric. Varis aspectes d’aquesta solució han estat examinats minuciosament. El primer és la tria de la topologia de convertidor DC/DC bidireccional apropiada, tenint en compte l’aplicació considerada. Finalment s’ha optat per un convertidor boost bidireccional amb filtre de sortida. Un cop determinada la topologia, s’ha analitzat l’estabilitat del sistema, tenint en compte que l’accionament elèctric que alimenta té un efecte desestabilitzant. D’acord amb els resultats obtinguts, el

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14

Celius, Zacharek Daniel, and Filip Sundqvist. "Design of Bidirectional DC/DC Battery Management System for Electrical Yacht." Thesis, Linköpings universitet, Elektroniska Kretsar och System, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149463.

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Electrical vehicles are getting more popular as the technology around batteries and electrical motors are catching up to the more common combustion engines. Electrical boats are no exception but there are still a lot of boats using old combustion engines that have a big impact on the environment. This study aims to deepen the understanding of the integration of electrical motors into boats by proposing a design of a system using a bidirectional synchronous buckboost converter. This converter is designed to handle the power transfer in a dual battery application, namely consisting of a 12 V bat

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15

You, Keping Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "A new bidirectional AC-DC converter using matrix converter and Z-source converter topologies." Awarded by:University of New South Wales, 2007. http://handle.unsw.edu.au/1959.4/37450.

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This thesis proposes a new bidirectional three-phase AC-DC power converter using matrix converter and Z-source inverter topologies. Advantages of the AC-DC matrix converter are the inherently controllable power factor, the tight DC voltage regulation, the wide bandwidth with quick response to load variation, the single-stage buck-voltage AC-to-DC power conversion; advantages of the z-source inverter are the increased reliability by allowing the shoot-through between upper and lower power switches of one inverter leg, insensitivity to DC bus voltage due to the extra freedom of controlling DC-li

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16

Wu, Kuiyuan. "Analysis and design of isolated bidirectional DC-DC converter with novel triple phase-shift control." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/42815.

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The bidirectional DC-DC converter is widely used in automobiles, energy storage systems, uninterruptible power supplies and aviation power systems. At present, there are three main problems in this area. The first problem concerns stability of the bidirectional converter when parameters change; the second is maintaining high efficiency of the bidirectional converter over wide load range; the third concerns the sensitivity of the efficiency of the bidirectional converter to parameter changes. This thesis presents a new method to determine the stability of the bidirectional converter using the L

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17

Chen, Weilun Warren. "Bidirectional Three-Phase AC-DC Power Conversion Using DC-DC Converters and a Three-Phase Unfolder." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6905.

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Strategic use of energy storage systems alleviates imbalance between energy generation and consumption. Battery storage of various chemistries is favorable for its relatively high energy density and high charge and discharge rates. Battery voltage is in dc, while the distribution of electricity is still predominantly in ac. To effectively harness the battery energy, a dc-ac inverter is required. A conventional inverter contains two high-frequency switching stages. The battery-interfacing stage provides galvanic isolation and switches at high frequency to minimize the isolation transformer size

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18

González, Castaño Catalina. "Analysis and implementation of a bidirectional dc-dc converter with coupled inductor for an electric vehicle powertrain." Doctoral thesis, Universitat Rovira i Virgili, 2019. http://hdl.handle.net/10803/667655.

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En aquesta tesi es proposa l'ús d'un convertidor Buck-Boost no inversor situat entre les bateries i l'inversor per regular el bus de contínua del sistema de tracció d'un vehicle elèctric (VE). El convertidor es basa en el Buck-Boost versàtil que ha demostrat un comportament excel·lent en aplicacions de baixa potència i commutació dura en diferents sistemes basats en piles d'hidrogen. A partir d'aquí, ampliar l'ús del convertidor per aplicacions de més alta tensió com les del VE és un repte que s'aborda en aquest treball. L'ús d'un convertidor reductor/elevador d'alta eficiència en el sistema d

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19

Broday, Gabriel Renan. "Bidirectional DC-DC converters for hybrid energy storage systems in electric vehicle applications." Universidade Tecnológica Federal do Paraná, 2016. http://repositorio.utfpr.edu.br/jspui/handle/1/2411.

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Em um momento em que questões ambientais e a segurança energética estão numa posição de destaque, Veículos Elétricos (VEs) estão no centro das atenções. Entretanto, ainda é difícil para eles substituir os tradicionais veículos de combustão interna e a razão principal para isso é o seu sistema de energia. Normalmente, devido a suas características, baterias são usadas como banco de energia para VEs. No entanto, baterias também apresentam algumas limitações para essa aplicação e o problema no sistema de energia é relacionado a essas limitações. Uma das soluções propostas é se colocar baterias e

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20

Filho, Herminio Miguel de Oliveira. "Soft switching bidirectional isolated three-phase DC-DC converter using dual phase-shift control with variable duty cycle." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16346.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>This work presents the analysis, design example, simulations and experimental results on a soft-switching bidirectional isolated three-phase dc-dc converter using dual phase-shift control with variable duty cycle. The topology uses three single H-bridges in the primary side and a three-phase inverter in the secondary side. High-frequency isolation is ensured by using three single-phase transformers connected in open delta-wye configuration. The variation of both phase-shift (PS) angles between the H-bridge legs and/or primary and s

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21

Liu, Chaohui. "Analysis, design and control of DC-DC resonant converter for on-board bidirectional battery charger in electric vehicles." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/17528/.

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The combustion of fossil fuels, a non-renewable and finite resource, has caused increasing air pollution, ozone damage, acid rain and global warming. Electric vehicles (EVs) are eco-friendly with the attractive properties of lower greenhouse emissions, lower fuel usage and reduced air pollution. Battery and charger is one of the vital elements to analyse and develop for EVs. This research focuses on the bidirectional on-board battery charger with the emphasis on the design and analysis of the DC-DC converter. Firstly, a LLC resonant topology is selected as the initial design candidate of the D

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22

Le, Lesle Johan. "Design modeling and evaluation of a bidirectional highly integrated AC/DC converter." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEC009/document.

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De nos jours, les énergies renouvelables remplacent les énergies fossiles. Pour assurer une l’interconnexion entre toutes ces installations électriques, l’électronique de puissance est nécessaire. Les principales spécifications de la prochaine génération de convertisseur de puissances sont un rendement et une densité de puissance élevés, fiabilité et faibles coûts. L’intégration PCB des composants actifs et/ou passifs est perçue comme une approche prometteuse, peu onéreuse et efficace. Les délais ainsi que les coûts de fabrication des convertisseurs de puissance peuvent considérablement réduit

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23

Alves, Nuno Martins. "High-Performance Isolated Bidirectional DC-DC Converter." Master's thesis, 2017. https://hdl.handle.net/10216/105515.

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Conversores DC-DC bidireccionais têm vindo a ganhar atenção na área da eletrónica de potência devido ao aumento da necessidade de um fluxo de potência controlado entre dois barramentos DC. Aplicações típicas podem ser facilmente listadas, indo desde unidades de produção de energia renovável até veículos elétricos e híbridos. Estes conversores podem apresentar funcionalidades como elevada densidade energética e performance, assim como isolamento galvânico entre cada porto. Desta forma, a AddVolt requisitou que tal conversor fosse incluído na sua solução de travagem regenerativa. Com esta disse

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Alves, Nuno Martins. "High-Performance Isolated Bidirectional DC-DC Converter." Dissertação, 2017. https://hdl.handle.net/10216/105515.

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Conversores DC-DC bidireccionais têm vindo a ganhar atenção na área da eletrónica de potência devido ao aumento da necessidade de um fluxo de potência controlado entre dois barramentos DC. Aplicações típicas podem ser facilmente listadas, indo desde unidades de produção de energia renovável até veículos elétricos e híbridos. Estes conversores podem apresentar funcionalidades como elevada densidade energética e performance, assim como isolamento galvânico entre cada porto. Desta forma, a AddVolt requisitou que tal conversor fosse incluído na sua solução de travagem regenerativa. Com esta disse

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25

Tong, Shi-cheng, and 童世承. "The Study of Bidirectional DC-DC Converter for DC System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/31838579125174523655.

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碩士<br>逢甲大學<br>電機工程所<br>98<br>In recent years, the development of green energy has received increasing national attention. It is foreseeable that the DC power supply system development and application, under the progressive development of green energy. The operation mode of bidirectional DC-DC power supply system will be as the current UPS. This design makes and improves to the bidirectional DC-DC power supply system, and the system is superposition half-bridge and full-bridge. The system features is the output voltage has a wide range of modulation under charging model. The power source is th

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26

Lai, Chien-Hsuan, and 賴价炫. "Analysis and Implementation of Bidirectional DC/DC Converter." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/17371448190970655354.

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碩士<br>雲林科技大學<br>電機工程系碩士班<br>96<br>This thesis proposes two bi-directional dc-to-dc converters. These converters can be used in the hybrid electric vehicle for battery charging and discharging system. In order to increase the efficiency of converters, the resonant circuits have been designed to achieve zero-voltage-switching (ZVS) to reduce switching loss. In the secondary side of converters, the synchronous rectifier have been adapted to avoid the surge conduction losses on the power semiconductor. The bi-directional asymmetric PWM half-bridge converter with center tap synchronous rectifier an

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DUNG, NGUYEN ANH, and NGUYEN ANH DUNG. "Bidirectional DC-DC Converter for Energy Storage Systems." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6zar9y.

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博士<br>國立臺灣科技大學<br>電子工程系<br>106<br>The bidirectional DC-DC converters for the energy storage systems (ESSs) such as batteries or ultra-capacitors in the electric vehicle or automotive systems have been paid more attention in recent years due to the developing of the technology and the exhaustion of the fossil fuel energy and their environmental concerns. There are numerous types of the ESSs depended on the specific applications. However, the ESSs is basically categorized into two main groups based on the voltage level: high voltage ESSs and low voltage ESSs. Therefore, the bidirectional DC-DC c

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28

Gedam, Prashant. "Design and Implementation of bidirectional DC DC converter fed DC motor." Thesis, 2014. http://ethesis.nitrkl.ac.in/5913/1/110EE0196-10.pdf.

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The work aims at designing and implementation of a bidirectional DC DC converter fed PMDC motor which can be used as the traction system for hybrid electric vehicle(HEV) system. As in designing the HEV the main problem is of battery storage system and by using the bidirectional converter we can improve the overall efficiency of the HEV. In bidirectional converter as energy flow can take place in either direction, it can work in both the motoring and regenerative mode. In motoring mode, the converter acts as a boost converter and the voltage will be boosted and hence the current will be less so

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29

Lee, Yu-En, and 李育恩. "Analysis and Design of Bidirectional ZVS DC-DC Converter." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/64519079999866605219.

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碩士<br>國立雲林科技大學<br>電機工程系碩士班<br>95<br>The system analysis and circuit implementation of the bi-direction converters applied on charging/discharging complex fuel cell are presented in this thesis. The soft switching technique is used to reduce the size of magnetizing component, switching losses and to increase the circuit efficiency. In the secondary side of transformer, the synchronous rectifier configuration will reduce the conduction losses on the power semiconductors. The bi-direction asymmetric half-bridge and active clamp forward converters are presented and discussed. Finally, the experime

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Chen, Chi-Rong, and 陳麒容. "High-Power Bidirectional DC/DC Converter with Natural Commutation." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/84354102352686414747.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>103<br>This thesis proposes a high-power bidirectional DC/DC converter for micro-grid system applications. The power-stage circuit topology is a non-isolated buck-boost DC/DC converter. Conventionally, this topology is hard-switched, which results in significant switching losses, as well as induces electromagnetic interferences and high-frequency noises. Contrarily, a novel control strategy is proposed in this thesis, in which zero-voltage-switching (ZVS) of power switches can be realized with simple pulse-width-modulation. The term “natural commutation” here means t

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Rodrigues, Pedro Afonso. "Isolated and Bidirectional DC-DC Converter for Electric Vehicles." Master's thesis, 2018. https://hdl.handle.net/10216/114199.

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O estado da arte iniciou com a análise na literatura de topologias de conversores DC-DC. Técnicas de modulação são estudadas com vista a melhorar a eficiência de conversão, realçando as vantagens e limitações inerentes das mesmas. Após a análise da literatura, o foco projeto passou a ser a topologias de dupla ponte com dispositivos ativos e com isolamento galvânico intermédio entre as duas pontes (conhecido em inglês por dual active bridge). Algumas técnicas de modulação que permitem o funcionamento do conversor são analisadas no documento e suportadas com resultados obtidos em ambiente de si

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Rodrigues, Pedro Afonso. "Isolated and Bidirectional DC-DC Converter for Electric Vehicles." Dissertação, 2018. https://hdl.handle.net/10216/114199.

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O estado da arte iniciou com a análise na literatura de topologias de conversores DC-DC. Técnicas de modulação são estudadas com vista a melhorar a eficiência de conversão, realçando as vantagens e limitações inerentes das mesmas. Após a análise da literatura, o foco projeto passou a ser a topologias de dupla ponte com dispositivos ativos e com isolamento galvânico intermédio entre as duas pontes (conhecido em inglês por dual active bridge). Algumas técnicas de modulação que permitem o funcionamento do conversor são analisadas no documento e suportadas com resultados obtidos em ambiente de si

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Rodrigues, Pedro Afonso. "Isolated and Bidirectional DC-DC Converter for Electric Vehicles." Dissertação, 2002. https://repositorio-aberto.up.pt/handle/10216/114199.

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O estado da arte iniciou com a análise na literatura de topologias de conversores DC-DC. Técnicas de modulação são estudadas com vista a melhorar a eficiência de conversão, realçando as vantagens e limitações inerentes das mesmas. Após a análise da literatura, o foco projeto passou a ser a topologias de dupla ponte com dispositivos ativos e com isolamento galvânico intermédio entre as duas pontes (conhecido em inglês por dual active bridge). Algumas técnicas de modulação que permitem o funcionamento do conversor são analisadas no documento e suportadas com resultados obtidos em ambiente de sim

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Chen, Hsuan-Ting, and 陳宣廷. "Study and Implementation of Hybrid DC Switch and Bidirectional DC-DC Converter." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/byb65r.

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碩士<br>國立高雄應用科技大學<br>電機工程系博碩士班<br>101<br>Distributed generation system has developed rapidly in recent years, Renewable energies, such as: solar, wind and fuel cell, are the primary power sources for the distributed generation system. However, solar power and wind power are the intermittent energy sources. The output power of the intermittent energy sources will be affected due to the changes of climate and time. In order to utilize renewable energy effectively and improve the penetration of renewable energy, the energy storage system is required. The purpose of this study is to develop a batte

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Lee, Kun-Ying, and 李昆穎. "Bidirectional Softly Switched DC-to-DC Converter with Galvanic Isolation." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/d33zye.

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碩士<br>國立東華大學<br>電機工程學系<br>102<br>In recent years, the boom growth on electric vehicles led to the development of the batteries and also bidirectional converter. In order to increase the efficiency of the DC-DC power converters, the active switches, such as IGBTs, are required to reduce switching power consumption. In this thesis, the proposed circuit is a normal current-fed full bridge converter, an auxiliary inductor added to series-connected with the transformer’s leakage inductance helps to reach zero-current-switching in step-up mode and zero-voltage-switching in step-down mode. Above soft

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Huang, Da-wei, and 黃大維. "Study and Implementation of a Bidirectional DC-DC Converter Module." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/37722508243101351865.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>102<br>This thesis aims to study and develop a bidirectional DC-DC charger/discharger converter module for battery charger/discharger systems. This module can charge/discharge two battery stacks in series, and the digital controller is used to realize charging/discharging strategy. The prototype circuit consists of two-stage bidirectional DC-DC converters. Both of the two-stage circuits are implemented by adopting bidirectional buck/boost converter. Operating principles and design considerations are discussed in detail. System stability of the two-stage converters is

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Min-TsungHsiao and 蕭閔聰. "Study and Implementation of a Novel Bidirectional DC-DC Converter." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/10787424070991294340.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>98<br>In this thesis, a novel bidirectional DC-DC converter is proposed. The proposed bidirectional converter with high voltage ratio is used to transfer energy between battery and DC bus. When the converter is operated in the discharging mode, two inductors are charged in parallel and discharged in series to step up battery voltage to DC bus voltage. Conversely, the converter is operated in the charging mode, two inductors are charged in series and discharged in parallel to step down DC bus voltage to battery voltage. The operating principles and steady-state cha

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Yang, Yu-Chang, and 楊育璋. "Three-Port Isolated Full-Bridge Bidirectional DC-to-DC Converter." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/41849037729000621373.

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碩士<br>南臺科技大學<br>電機工程系<br>105<br>The three-port isolated full-bridge bidirectional DC-to-DC converter has three different energy ports, with flexible power transmission, electrical isolation and high power density. So this converter is suitable for micro-grid and renewable energy systems to connect different energy and load. This paper proposes a Three-port isolated full-bridge bidirectional DC-to-DC converter to integrate renewable energy, energy storage systems and supply energy to the load, which can greatly reduce the impact of intermittent effects by integrating renewable energy and energy

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Hao-TangChang and 張皓棠. "Design and Implementation of Bidirectional DC-DC CLLLC Resonant Converter." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/5944qk.

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碩士<br>國立成功大學<br>電機工程學系<br>105<br>An isolated bidirectional resonant converter with digital control for the energy transferring between the DC bus and the battery of the electric vehicle is designed and implemented in this thesis. The main circuit topology consists of full-bridge structures and a CLLLC resonant tank. Due to the symmetrical circuit characteristics of bidirectional power flow, the circuit control can be simplified. This converter can also achieve soft switching for reducing the switching loss to further improve the system efficiency. In this thesis, the operating principles of th

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SUNG, KUAN-YI, and 宋冠毅. "Bidirectional DC-to-DC Converter With Wide-Voltage-Gain Range." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/af34qy.

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碩士<br>國立高雄科技大學<br>電機工程系<br>107<br>A bidirectional DC-to-DC converter with wide voltage gain range is proposed in this thesis. It is mainly applied to the power conversion between battery cells and DC bus in electric vehicles, which can reduce the loss of battery life. In the aspect of converter, the non-isolation structure is adopted to reduce the loss caused by leakage inductance, and has a higher gain in boost mode and buck mode. The voltage stress on the switch only needs about half of the voltage on the high voltage side. The switch with better conduction characteristics can be used in the

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Zhang, Fu-Xiang, and 張富翔. "Design and Implementation of a New Isolated Bidirectional DC - DC Converter." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/kg749n.

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碩士<br>遠東科技大學<br>電機工程研究所<br>101<br>This thesis proposes a new isolated bidirectional DC - DC Converter. This converter can be used to transfer the energy between a low-voltage side and a high-voltage side. At the step-up mode, when this switch is turned on, the energy of the low-voltage side is transferred to the inductor. When the switch is turned off, the energy stored in the inductor via the transformer is released to the high-voltage side. At the step-down mode, when this switch is turned on, the energy of the high-voltage side via the transformer is transferred to the inductor. When the sw

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Huang, Shih-Ming, and 黃士銘. "Design and Implementation of a High-Efficiency Bidirectional DC-DC Converter." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/9fjgv3.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>102<br>This thesis studies the design and implementation of a non-isolated dual-half-bridge bidirectional DC-DC converter. Using the presented topology, high efficiency can be achieved under wide-range load variations by the zero-voltage-switching features and phase-shift control method. In this thesis, dsPIC33FJ16GS502 digital signal controller (DSC) is utilized to implement the digital controller of the bidirectional DC-DC converter. According to the experimental results, a light-load efficiency over 92 % and a full-load efficiency over 97% can be achieved.

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Zheng, Li-Ren, and 鄭力仁. "Design and Implementation of a Bidirectional Buck-Boost DC-DC Converter." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/41810993725827533220.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>103<br>In this thesis, a digitally-controlled non-isolated bidirectional buck– boost dc–dc converter is studied and implemented. The proposed converter is capable of operating in all power conditions in buck/boost modes. Through a novel modulation strategy and proper design of the buck-boost inductance, zero voltage switching (ZVS) can be achieved and thus high efficiency can be obtained. To further improve the efficiency, an adaptive phase-shift control method which determines the phase shift between gating signals according to the load level is also proposced. A lo

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Chen, Chin-Lin, and 陳志霖. "Study and Implementation of DC-DC Bidirectional Converter with Synchronous Rectification." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/05434701480542559003.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>98<br>The objective of this thesis is to design and implement a PWM zero- voltage-switching bidirectional converter. The bidirectional converter employs a buck and boost topology with synchronous rectification. In this thesis, the bidirectional converter control strategy of bidirectional operates at two operation modes: Buck mode (charge battery)、Boost mode (discharge battery).Because the bidirectional converter has different operation modes, so need to design two feedback loop compensators for each mode. Small-signal models have been used extensively in many

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Wu, Guo-Wei, and 吳國瑋. "Analysis and implementation of new bidirectional DC-DC converter for battery." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/12674531493294543948.

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碩士<br>遠東科技大學<br>電機工程研究所<br>100<br>In this thesis, a bidirectional DC-DC converter is proposed. The proposed converter is used to transfer the energy between the battery and DC bus. This converter can be operated in wide voltage conversion range than the conventional bidirectional DC-DC boost/buck converter. The circuit topology of this converter is very simple. The pulse width modulation control strategy is used to control the active switches. Moreover the synchronous rectification technology is used to reduce the losses. When this converter is operated in the charging mode, the battery is cha

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Hsu, Kai-Cheng, and 許凱程. "Three Ports Bidirectional DC/DC Converter with Three-Winding Coupled Inductor." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/75faj6.

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碩士<br>國立高雄科技大學<br>電子工程系<br>107<br>This thesis proposes a three-port bidirectional converter with three-winding coupled inductor applied to a Photovoltaic (PV) system, which is to step-up the PV system output to a DC bus or DC load while charging the battery. When the PV output is insufficient, battery voltage will be stepped up to the DC bus, and when the DC bus has excess energy, it will be stepped down to charge the battery. Thus, a three-port bidirectional high step-up / step-down converter is achieved. In this thesis, a three-winding common core coupled inductor is designed and adopted in

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Lin, Yong-Kai, and 林詠凱. "Design and Implementation of a High Efficiency Bidirectional DC/DC Converter." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/bjpfvb.

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碩士<br>國立臺北科技大學<br>電機工程系所<br>94<br>The objective of this thesis is to design and implement a high efficiency bidirectional DC/DC converter for fuel cell systems, which converts the energy from battery (or load) to fuel cell and visa versa. When the converter operates in buck mode, the power is provided by battery with constant voltage. In contrast, when the converter operates in boost mode, the battery is charged by fuel cells or regenerative energy of load with constant current. The details of the specification include: Power rating = 1.5 kW Voltage rating =24V/45V First, the operation princip

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Zhuang, Kai-Pin, and 莊凱斌. "Design of Bidirectional DC-DC Converter and Active Current Sensing Circuit." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/3z49ng.

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碩士<br>國立臺北科技大學<br>電腦與通訊研究所<br>95<br>The main theme of this thesis is to present a Bidirectional DC-DC converter provided two functional options of buck and boost converters based upon mode selection and changed external component connection method which is used by the same power mos. This converter proposed in thesis is to adopt the current control model and technology of hysteresis current comparator. By utilizing active current sensing circuit, this control method includes significant of the inductor current and providing fast transient response. Meanwhile, power mos will be used to replace

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Huang, Te-Yu, and 黃得祐. "Design of Isolated Bidirectional DC/DC Converter for Energy Storage System." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/y7ga8x.

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碩士<br>國立中央大學<br>電機工程學系<br>107<br>Due to the instability of renewable energy, this thesis designs an isolated bidirectional DC/DC converter with adjustable power. It proposes on control the energy flow between DC bus and energy storage system. With this design of converter, the electrical energy can be bidirectionally flow to supplement the power required by the electrical system and improve the energy efficiency. The electric circuit of this paper is phase-shifted full-bridge/push-pull bidirectional circuit. Pulse phase modulation is used to achieve zero-voltage switching. The digital control

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Hong-WeiDeng and 鄧弘緯. "DSP Controlled AC-DC Bidirectional Power Converter." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/55249315633117041500.

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