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Journal articles on the topic 'Interleaved buck converter'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

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

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This paper presents a Reflex charger realized by N sets of interleaved soft-switching converters with L-C-D snubbers. The interleaved converters used for implementing the Reflex charging technique can be interleaved boost, interleaved buck-boost, and interleaved sepic converters. The use of the L-C-D snubber in each set of interleaved converter is to reduce turn-off switching losses, hence, to achieve higher conversion efficiencies of the interleaved converters and to extend the lifetime of rechargeable batteries. A prototype of Reflex charger with four sets of interleaved buck-boost con-verters is implemented for charging lead acid batteries of 12V. Experimental results show that the proposed circuit structure can generate the required positive/negative pulses for the Reflex charging.

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2

Babaei, Ebrahim, Zahra Saadatizadeh, and Behnam Mohammadi Ivatloo. "A New Interleaved Bidirectional Zero Voltage Switching DC/DC Converter with High Conversion Ratio." Journal of Circuits, Systems and Computers 26, no. 06 (March 5, 2017): 1750105. http://dx.doi.org/10.1142/s0218126617501055.

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In this paper, a new interleaved nonisolated bidirectional zero voltage switching (ZVS) dc–dc converter by using one three-windings coupled inductor is proposed. The proposed topology can provide high step-up and high step-down conversion ratios for boost and buck operations, respectively. Moreover, because of interleaving, the proposed converter has low input current ripple at low voltage side in both buck and boost operations. The proposed converter uses lower number of switches to have bidirectional power flow in comparison with other interleaved bidirectional converters. All used switches in the proposed converter are turned on under ZVS. The advantages of the proposed converter in comparison with the conventional interleaved converters are included in the capability of bidirectional power flow, ZVS operation for all switches and high step-up and high step-down voltage gain for boost and buck operations. In this paper, the proposed converter is analyzed completely and all equations of components are extracted as well as the ZVS conditions of all switches. Moreover, a comprehensive comparison between the proposed converter and conventional topologies is presented. To verify the accuracy performance of the proposed converter, the experimental results are given.

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3

Tseng, Sheng Yu, and Yi Ren Juang. "Approach to Developing Interleaved Converter with Single-Capacitor Turn-Off Snubber." Applied Mechanics and Materials 284-287 (January 2013): 2477–84. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.2477.

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This paper presents a systematic approach to developing turn-off snubber for an interleaving converter to smooth out switch turn-off transition. With the approach, the interleaving converter with two turn-off snubbers, which are formed by two L-C-D type snubbers, can be replaced by the one with turn-off snubber composed of a single-capacitor snubber. It can be used in the basic six interleaved converters, such as buck, boost, buck-boost, ‘cuk, zeta and sepic converters. In this research, the structure of the interleaved converter with the turn-off snubber can be conveniently simplified from the derived general configurations, reducing the complexity of circuit structure significantly. Measured results from a buck prototype converter have been verified to prove the feasibility of the derived turn-off snubber.

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4

Do, Hyun Lark. "Interleaved Synchronous Buck Converter with a Coupled Inductor." Advanced Materials Research 424-425 (January 2012): 793–95. http://dx.doi.org/10.4028/www.scientific.net/amr.424-425.793.

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An interleaved synchronous buck converter with a coupled inductor is proposed in this paper. In the proposed converter, two synchronous buck converters operate with the interleaving technique. Moreover, a single magnetic component is utilized. By using a loosely coupled inductor, its leakage inductances are utilized to control the power flow. Theoretical analysis and performance of the proposed converter were verified on an experimental prototype operating at 100 kHz switching frequency

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5

Ilic, Milan, and Dragan Maksimovic. "Interleaved Zero-Current-Transition Buck Converter." IEEE Transactions on Industry Applications 43, no. 6 (2007): 1619–27. http://dx.doi.org/10.1109/tia.2007.908175.

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6

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

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7

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

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A photovoltaic (PV) generator exhibits nonlinear voltage-current characteristics and its maximum power point varies with solar radiation. Analytical investigations of the new family of switching converters based on a parallel connection of (=4) identical buck-boost converters employed in PV system are presented. The interleaving strategy ensures that all the converters operate at the same switching frequency. Mathematical models developed using the state-space average technique are presented in this paper. Various steady-state performance expressions are also derived. The present converter system has the advantages of reduced size of the converter, and ripple in the total inductor current. The effectiveness of the four-phase interleaved dc-dc converter combined with PV system is demonstrated through simulations carried out in MATLAB environment.

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8

Shao, Zhu Lei. "Study on Buck-Boost Integrated Type Three-Port Converter." Advanced Materials Research 960-961 (June 2014): 1304–7. http://dx.doi.org/10.4028/www.scientific.net/amr.960-961.1304.

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Aiming at simplifying the structure of power supply system of new energy, a buck-boost integrated type three-port converter is designed in this paper. The three-port converter can replace three separate converters, which makes the system structure is simplified and manufacturing cost is reduced. The three-port converter realizes the current expansion and ripple suppression by adopting inductor interleaved parallel bridge arm structure. The topology and control strategy of the three-port converter are analyzed in this paper. From the experimental results, the inductor current ripple and realization of soft switch meet the design requirement. The buck-boost integrated type three-port converter is applicable to the new energy power supply system.

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9

José Mendes de Seixas, Falcondes, Claudiner Mendes de Seixas, and Carlos Alberto Canesin. "A 300A Dynamic Electronic Load Based On Modified Buck+boost Interleaved Converter." Eletrônica de Potência 11, no. 3 (November 1, 2006): 161–66. http://dx.doi.org/10.18618/rep.2006.3.161166.

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10

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

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

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11

Kalirasu, A. "A Novel Single Source Multiple Output Converter Integrating Buck-Boost and Fly Back Yopology for SMPS Applications." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 3 (December 1, 2017): 733. http://dx.doi.org/10.11591/ijeecs.v8.i3.pp733-736.

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<p>This paper presents a novel single DC input source and multiple DC output suitable for switched mode power supply (SMPS) applications integrating interleaved boost and sepic converter with fly back topology. The proposed converter can be remodeled for any required output voltage power supply without changing hardware structure because wide range of output voltage can be obtained using sepic and boost converters by changing duty cycle command by implementing a simple voltage input pi controller. Conventional fly back topology is added to interleaved circuit to produce desired dc output voltage this voltage can be controlled by choosing turns ratio of fly back transformer. The proposed multi output DC converter is simulated in MATLAB/Simulink environment and results are presented for verifying merits of the converter.</p>

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12

Carbajal-Retana, Marco, Leobardo Hernandez-Gonzalez, Jazmin Ramirez-Hernandez, Juan Gerardo Avalos-Ochoa, Pedro Guevara-Lopez, Igor Loboda, and Luis Antonio Sotres-Jara. "Interleaved Buck Converter for Inductive Wireless Power Transfer in DC–DC Converters." Electronics 9, no. 6 (June 8, 2020): 949. http://dx.doi.org/10.3390/electronics9060949.

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The use of Inductive Wireless Power Transfer (IWPT) varies from low-power applications such as mobile phones and tablets chargers to high-power electric vehicles chargers. DC–DC converters are used in IWPT systems, and their design needs to consider the demand of high efficiency in the power transfer. In this paper, a DC–DC power converter for IWPT is proposed. Its topology uses a DC–AC converter in the transmitter circuit and an AC–DC converter in the receptor. The transmitter has an interleaved coupled-Buck converter that integrates two Buck converters connected to a half inverter bridge and a parallel resonant load. The control strategy implemented for the semiconductor switching devices allows two operating modes to obtain a sinusoidal output voltage with a low distortion that makes it suitable in high-efficiency power transfer systems. To obtain a DC output voltage, a full wave bridge rectifier is used in the receptor circuit. The proposed topology and the control strategy are validated with simulation and experimental results for a 15 W prototype.

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13

Chang, Chien-Hsuan, Hung-Liang Cheng, and En-Chih Chang. "Using the buck-interleaved buck–boost converter to implement a step-up/down inverter." Engineering Computations 34, no. 2 (April 18, 2017): 272–84. http://dx.doi.org/10.1108/ec-08-2015-0241.

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Purpose A typical photovoltaic grid-connection power system usually consists of multi-stage converters to perform multiple functions simultaneously. To simplify system configuration, reduce cost and improve conversion efficiency, this paper aims to develop a buck–boost-type inverter. The proposed inverter has both step-up and step-down functions, so that it is suitable for applications with wide voltage variation. As only one power switch operates with high frequency at one time, switching losses can significantly be reduced. Design/methodology/approach A step-up/down inverter is developed by adopting a buck-interleaved buck–boost (BuIBB) DC-DC converter and connecting with an H-bridge unfolding circuit with line-commutated operation. Finding The proposed circuit can work functionally as either a buck-type or boost-type inverter, so that partial energy can be directly delivered to output to improve efficiency. The input current is shared by two inductors, leading to the reduction of current stresses. Research limitations/implications To apply the proposed inverter to micro-inverter applications in the future, developing a step-up/down inverter with a higher conversion ratio will be considered. Practical implications A laboratory prototype is built accordingly to verify the feasibility of the proposed inverter. The experimental results are presented to show the effectiveness. Originality/value This paper proposes a step-up/down inverter by using the BuIBB converter, which is innovatively studied.

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14

Sener, Eralp, Isil Yazar, Gurhan Ertasgin, and Hasan Yamık. "1.2kW Interleaved synchronous buck converter design for aviation systems." MATEC Web of Conferences 314 (2020): 02005. http://dx.doi.org/10.1051/matecconf/202031402005.

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The principal aim of this work is to design a battery-operated 1.2kW interleaved synchronous buck converter for aviation systems to obtain lower losses compared to the existing topologies. It is desired to achieve at least a 5% loss reduction. Military aircrafts such as F-22 and civil aircraft as Boeing 787 are using the 270V DC for their battery systems. Although 270V DC system has some advantages such as reducing loses and the passive element sizes, old avionics that have been designed, produced and used since the second world war may not be compatible with the 270V DC system. Conversion from 270V to 28V appears to be quite promising for both old and new systems. Therefore, a buck converter design for 270 to 28V conversion is proposed in this study to adapt older avionics technology to accommodate new achievements. The analysis of the SiC MOSFET based interleaved synchronous buck converter with a double loop PI controller is presented. The paper demonstrates the principles of the design and discusses possible future developments. The concept is verified using simulations.

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15

Yun, Chul, Byungkeun Yoon, Woohyen Kwon, and Woohyun Kim. "Inductor Characteristics Analysis in High Power Interleaved Buck Converter." IEIE Transactions on Smart Processing and Computing 6, no. 1 (February 28, 2017): 47–52. http://dx.doi.org/10.5573/ieiespc.2017.6.1.047.

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16

Hsieh, Yao-Ching, Bing-Siang Huang, Jing-Yuan Lin, Phu Hieu Pham, Po-Hao Chen, and Huang-Jen Chiu. "A zero-voltage-switched three-phase interleaved buck converter." International Journal of Electronics 105, no. 4 (September 26, 2017): 572–85. http://dx.doi.org/10.1080/00207217.2017.1381885.

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17

Li, W. H., W. C. Li, and X. N. He. "Isolated interleaved flyback-buck converter with inherent clamp scheme." Electronics Letters 45, no. 16 (2009): 853. http://dx.doi.org/10.1049/el.2009.1018.

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18

Cheng, Chang, Cheng, Chang, Chung, and Chang. "A Single-Stage LED Streetlight Driver with Soft-Switching and Interleaved PFC Features." Electronics 8, no. 8 (August 18, 2019): 911. http://dx.doi.org/10.3390/electronics8080911.

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This paper presents a single-stage driver with soft-switching and interleaved power-factor correction (PFC) features suitable for light-emitting diode (LED) energy-saving streetlight applications. The proposed LED streetlight driver integrates an interleaved buck-boost PFC converter with coupled inductors and a half-bridge LLC resonant converter into a single-stage power-conversion circuit with reduced voltage stress on the DC-linked capacitor and power switches, and it is suitable for operating at high utility-line voltages. Furthermore, coupled inductors in the interleaved buck-boost PFC converter are operated in discontinuous-conduction mode (DCM) for accomplishing PFC, and the half-bridge LLC resonant converter features zero-voltage switching (ZVS) to reduce switching losses of power switches, and zero-current switching (ZCS) to decrease conduction losses of power diodes. Operational modes and design considerations for the proposed LED streetlight driver are introduced. Finally, a 144 W (36V/4A)-rated LED prototype driver is successfully developed and implemented for supplying a streetlight module and operating with a utility-line input voltage of 220 V. High power factor, low output-voltage ripple factor, low output-current ripple factor, and high efficiency are achieved in the proposed LED streetlight driver.

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19

Yodwong, Burin, Damien Guilbert, Wattana Kaewmanee, and Matheepot Phattanasak. "Energy Efficiency Based Control Strategy of a Three-Level Interleaved DC-DC Buck Converter Supplying a Proton Exchange Membrane Electrolyzer." Electronics 8, no. 9 (August 25, 2019): 933. http://dx.doi.org/10.3390/electronics8090933.

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To face the intensive use of natural gas and other fossil fuels to generate hydrogen, water electrolysis based on renewable energy sources (RES) seems to be a viable solution. Due to their fast response times, and high efficiency, proton exchange membrane electrolyzer (PEM EL) is the most suitable technology for long-term energy storage, combined with RES. Like fuel cells, the development of fit DC-DC converters is mandatory to interface the EL to the DC grid. Given that PEM EL operating voltages are quite low and to meet requirements in terms of output current ripples, new emerging interleaved DC-DC converter topologies seem to be the best candidates. In this work, a three-level interleaved DC-DC buck converter has been chosen to supply a PEM EL from a DC grid. Therefore, the main objective of this paper is to develop a suitable control strategy of this interleaved topology connected to a PEM EL emulator. To design the control strategy, investigations have been carried out on energy efficiency, hydrogen flow rate, and specific energy consumption. The obtained experimental results validate the performance of the converter in protecting the PEM EL during transient operations while guaranteeing correct specific energy consumption.

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20

Li, Po, Xiang Li, and Tao Zeng. "A Fast and Simple Fault Diagnosis Method for Interleaved DC-DC Converters Based on Output Voltage Analysis." Electronics 10, no. 12 (June 17, 2021): 1451. http://dx.doi.org/10.3390/electronics10121451.

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Interleaved DC-DC converters have been widely used in power conversion due to their high efficiency and reliability. In the application of new energy, this plays an increasingly important role in the grid-connected power generation of wind, solar, and tidal energy. Therefore, it is crucial to ensure the reliability and proper operation of interleaved DC-DC converters. We studied an open circuit fault (OCF) diagnosis method for a three-phase interleaved buck converter. We propose a non-invasive diagnosis method based on the output voltage using the harmonic amplitude and phase at the switching frequency as the diagnostic criteria. Evaluation was carried out on a hardware-in-the-loop (HIL) test platform to prove the validity of the proposed method. The results show that the presented method had high accuracy and robustness against OCFs, which could otherwise damage the system.

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Mazumder, Sudip K., Ali H. Nayfeh, and Dushan Boroyevich. "Nonlinear Analysis of Parallel Dc-Dc Converters." Journal of Vibration and Control 9, no. 7 (July 2003): 775–89. http://dx.doi.org/10.1177/1077546303009007003.

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We develop analytic methodologies for stability analysis of a parallel dc-dc converter using its switching model, discrete model (based on nonlinear map) and averaged model. We use these methodologies to investigate the dynamics of an interleaved and a synchronized parallel dc-dc buck converter. Using the switching and discrete models we show the mechanism and boundaries of fast-scale and slow-scale instabilities. We show the difference in mechanism of fast-scale instability between the interleaved and a synchronized converter. The averaged model does not show this difference. It also differs considerably (from the other two models) in prediction of instability boundaries.

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Kroics, Kaspars. "Simulation Based Analysis of Digitally Controlled 4-phase DC-DC Converter with Coupled Inductors." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 1 (June 16, 2015): 89. http://dx.doi.org/10.17770/etr2015vol1.215.

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<p class="R-AbstractKeywords"><span lang="EN-US">Interleaved converters are used in many different conversion systems involving various topologies and are related to different fields of application due its advantages over single-phase converters. Such advantages include reduced current in switching devices and passive elements, reduced output current ripple, and so on. Reductions in size and costs of magnetic components and inductors current ripple can be achieved by an integration of magnetics. In this paper application of 2-phase coupled inductor designed in convenient way by using commercially manufactured coil formers and ferrite cores is analyzed to developed 4-phase interleaved DC-DC converter. Different structures of the coupled inductor for 4 phases is studied. The steady state phase and output current ripple in buck mode of the interleaving magnetic integrated bidirectional DC-DC converter is simulated. The necessary count of inductors for selected topology are manufactured and placed on the PCB board.</span></p>

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23

Vitale, Gianpaolo, and Emiliano Pipitone. "A Six Legs Buck-boost Interleaved Converter for KERS Application." Renewable Energy and Power Quality Journal 18 (June 2020): 461–68. http://dx.doi.org/10.24084/repqj18.382.

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Azib, Toufik, Mahraz Bendali, Cherif Larouci, and Kamel Eddine Hemsas. "Fault Tolerant Control of Interleaved Buck Converter for Automotive Application." International Review of Electrical Engineering (IREE) 10, no. 3 (June 30, 2015): 336. http://dx.doi.org/10.15866/iree.v10i3.5472.

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Bagewadi, Milind D., Chinmay R. Chobe, Prathamesh S. Jagtap, Mahwash Siddiquee, and Sanjay S. Dambhare. "Buck–boost derived interleaved hybrid converter for residential nanogrid applications." IET Power Electronics 13, no. 2 (February 2020): 377–88. http://dx.doi.org/10.1049/iet-pel.2019.0521.

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Esteki, Morteza, Behzad Poorali, Ehsan Adib, and Hosein Farzanehfard. "High step‐down interleaved buck converter with low voltage stress." IET Power Electronics 8, no. 12 (December 2015): 2352–60. http://dx.doi.org/10.1049/iet-pel.2014.0976.

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27

Bayram, M. Baha, Ibrahim Sefa, and Selami Balci. "A static exciter with interleaved buck converter for synchronous generators." International Journal of Hydrogen Energy 42, no. 28 (July 2017): 17760–70. http://dx.doi.org/10.1016/j.ijhydene.2017.03.062.

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Cuoghi, Stefania, Riccardo Mandrioli, Lorenzo Ntogramatzidis, and Grandi Gabriele. "Multileg Interleaved Buck Converter for EV Charging: Discrete-Time Model and Direct Control Design." Energies 13, no. 2 (January 17, 2020): 466. http://dx.doi.org/10.3390/en13020466.

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This paper presents the modeling and the implementation of the digital control of a multileg interleaved DC-DC buck converter for electrical vehicle (EV) charging. Firstly, we derive a discrete averaged model of an n-leg interleaved buck converter (IBC). Secondly, we present a direct tuning procedure for one primary discrete PIDF (PID + filter) and multiple secondary PI controller. The objective of the control system is to regulate the current flow in each leg of the converter. This task is accomplished by introducing a novel control paradigm that simultaneously addresses two aims: on the one hand, the control scheme must guarantee an acceptable level of robustness under load variations; while on the other, an even distribution of power on each leg must be ensured at any operational condition. The proposed strategy hinges on a technique that combines simplicity and precision in the fulfillment of design frequency specifications. We use simulations and a digital signal processor (DSP) based experimental implementation of the design technique to validate the proposed methodology.

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Lee, Eui-Cheon, and Hyun-Chil Choi. "An Interleaved PWM Buck Converter with a Soft Switching Auxiliary Circuit." Transactions of the Korean Institute of Power Electronics 18, no. 6 (December 20, 2013): 547–55. http://dx.doi.org/10.6113/tkpe.2013.18.6.547.

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Kim, Nak-Yoon, and Hyun-Chil Choi. "A New High Efficiency Interleaved Buck Converter with Soft-switching Scheme." Transactions of the Korean Institute of Power Electronics 19, no. 2 (April 20, 2014): 116–23. http://dx.doi.org/10.6113/tkpe.2014.19.2.116.

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D, Sridevi, and Ravikiran Rao. "Feedback Control of an Interleaved Buck Converter with Improved Conversion Ratio." IJIREEICE 5, no. 2 (April 5, 2017): 74–77. http://dx.doi.org/10.17148/ijireeice/ncaee.2017.17.

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Choi, Hangseok. "Interleaved Boundary Conduction Mode (BCM) Buck Power Factor Correction (PFC) Converter." IEEE Transactions on Power Electronics 28, no. 6 (June 2013): 2629–34. http://dx.doi.org/10.1109/tpel.2012.2222930.

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Garcia, O., P. Zumel, A. de Castro, and A. Cobos. "Automotive DC-DC bidirectional converter made with many interleaved buck stages." IEEE Transactions on Power Electronics 21, no. 3 (May 2006): 578–86. http://dx.doi.org/10.1109/tpel.2006.872379.

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Garcia, Jorge, Antonio J. Calleja, Emilio Lopez Corominas, David Gacio Vaquero, and Lidia Campa. "Interleaved Buck Converter for Fast PWM Dimming of High-Brightness LEDs." IEEE Transactions on Power Electronics 26, no. 9 (September 2011): 2627–36. http://dx.doi.org/10.1109/tpel.2011.2121922.

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35

Repecho, Victor, Domingo Biel, Rafael Ramos-Lara, and Pilar Garcia Vega. "Fixed-Switching Frequency Interleaved Sliding Mode Eight-Phase Synchronous Buck Converter." IEEE Transactions on Power Electronics 33, no. 1 (January 2018): 676–88. http://dx.doi.org/10.1109/tpel.2017.2662327.

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Yau, Yeu-Torng, Kuo-Ing Hwu, and Jenn-Jong Shieh. "Minimization of Output Voltage Ripple of Two-Phase Interleaved Buck Converter with Active Clamp." Energies 14, no. 16 (August 23, 2021): 5215. http://dx.doi.org/10.3390/en14165215.

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A control technique combining pulse width modulation (PWM) and pulse amplitude modulation (PAM) is presented herein to reduce the output voltage ripple of the converter as little as possible. Such a converter requires a two-stage cascaded structure. The first stage is the buck-boost converter, which is used to adjust the output voltage of the second power stage, whereas the second stage is the two-phase interleaved buck converter, which is used to reduce the output voltage ripple. In theory, the two phases of the second stage operate under the condition of individual duty cycles of 50% with a phase difference of 180° between the two, and hence, the currents in the two phases are cancelled for any period of time, thereby making the output voltage of the converter almost voltage-free. Moreover, in order to improve the overall efficiency further, the proposed soft-switching technique based on an active clamp is presented and applied to these two stages to render the main and auxiliary switches turned on with zero-voltage switching (ZVS). Finally, the operating principles and control strategies of the proposed converter are described, and then, their effectiveness is verified by experimental results.

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Karimi, Mohsen, Mohammad Pichan, Adib Abrishamifar, and Mehdi Fazeli. "An improved integrated control modeling of a high-power density interleaved non-inverting buck-boost DC-DC converter." World Journal of Engineering 15, no. 6 (December 3, 2018): 688–99. http://dx.doi.org/10.1108/wje-11-2017-0360.

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PurposeThis paper aims to propose a novel integrated control method (ICM) for high-power-density non-inverting interleaved buck-boost DC-DC converter. To achieve high power conversion by conventional single phase DC-DC converter, inductor value must be increased. This converter is not suitable for industrial and high-power applications as large inductor value will increase the inductor current ripple. Thus, two-phase non-inverting interleaved buck-boost DC-DC converter is proposed.Design/methodology/approachThe proposed ICM approach is based on the theory of integrated dynamic modeling of continuous conduction mode (CCM), discontinuous conduction mode and synchronizing parallel operation mode. In addition, it involves the output voltage controller with inner current loop (inductor current controller) to make a fair balancing between two stages. To ensure fast transient performance, proposed digital ICM is implemented based on a TMS320F28335 digital signal microprocessor.FindingsThe results verify the effectiveness of the proposed ICM algorithm to achieve high voltage regulating (under 0.01 per cent), very low inductor current ripple (for boost is 1.96 per cent, for buck is 1.1) and fair input current balance between two stages (unbalancing current less than 0.5A).Originality/valueThe proposed new ICM design procedure is developed satisfactorily to ensure fast transient response even under high load variation and the solving R right-half-plane HP zeros of the CCM. In addition, the proposed method can equally divide the input current of stages and stable different parallel operation modes with large input voltage variations.

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Asl, Elias Shokati, Mehran Sabahi, Mehdi Abapour, Alireza Eyvazizadeh Khosroshahi, and Hossein Khoun-Jahan. "Markov Chain Modeling for Reliability Analysis of Multi-Phase Buck Converters." Journal of Circuits, Systems and Computers 29, no. 09 (November 7, 2019): 2050139. http://dx.doi.org/10.1142/s021812662050139x.

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In recent years, the structure of multi-phase buck converter also called Interleaved Buck Converter (IBC) has gained considerable attention. The advantages of the IBC in comparison to the conventional Buck converter (CBC) are the lower output current ripple, higher efficiency, fast transient response, lower electromagnetic interference and higher reliability. Since more than one stage is employed in the IBC, this converter is highly reliable. In this paper, the reliability and mean time to failure (MTTF) of the CBC, and two- and three-stage IBCs are figured out. Using the obtained results and considering various scenarios, a comprehensive comparison is provided. In addition, the operation of the converter in case of fault occurrence for high and low capacities is analyzed and reliability is evaluated in each state. The relation between the reliability and temperature of semiconductor elements is discussed. Furthermore, a laboratory-scaled prototype is used to extract the experimental results of the temperature variation of the elements during a fault. Markov model is used to evaluate the analyzed reliability.

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Frivaldsky, Michal, Slavomir Kascak, Jan Morgos, and Michal Prazenica. "From Non-Modular to Modular Concept of Bidirectional Buck/Boost Converter for Microgrid Applications." Energies 13, no. 12 (June 26, 2020): 3287. http://dx.doi.org/10.3390/en13123287.

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In this article, the practical comparison of the operational performance of the modular (or multiport) and non-modular bidirectional buck/boost (bi-BB) DC/DC converter is realized. The main contribution of the work is the evaluation of both concepts based on various aspects, considering the qualitative indicators of the systems relevant for microgrids. Here, we discuss efficiency, electrical properties, costs, and component values. At the same time, critical comparisons are provided for converters based on SiC and GaN technology (non-modular high-voltage SiC-based dual-interleaved converter and modular low-voltage GaN-based). The concepts are specific with their operating frequency, whereby for each solution, the switching frequency is different and directly influences relevant components. The efficiency, overall system volume, output voltage ripple, and input current ripple are compared mutually between both concepts with a dependency on power delivery. These factors, together with overall volume and costs, are very important considering modern converters for microgrid systems. The summary of pros and cons is realized for each of the proposed converters, whereby the evaluation criterion is reflected within the electrical properties targeting microgrid application.

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ABU-QAHOUQ, JABER A., HONG MAO, and ISSA BATARSEH. "NONISOLATED MULTIPHASE HALF-BRIDGE-BUCK TOPOLOGY WITH INHERENT CURRENT SHARING CAPABILITY AND SOFT-SWITCHING AND COUPLED-INDUCTORS CURRENT-DOUBLER." Journal of Circuits, Systems and Computers 13, no. 03 (June 2004): 443–66. http://dx.doi.org/10.1142/s0218126604001672.

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Point-of-load DC–DC converter requirements and design are increasingly becoming stricter than ever. This is due to the required tight dynamic tolerances allowed for supply voltages and high dynamic performance demand coupled with very high power density. Moreover, as the required converter output voltage becomes smaller, higher voltage step-down ratio is required, which results in smaller switching duty cycle in the nonisolated topologies. Step-down transformer with large turns ratio is used in the isolated topologies to step-down the voltage and keep larger duty cycle. Most of the nonisolated DC–DC topologies are buck-derived and unfortunately work at hard-switching which degrades the efficiency. DC–DC interleaved buck topologies were proposed but are highly sensitive to interleaved phases asymmetry and require high performance current sharing loop. In this paper, a nonisolated multiphase nonisolated half-bridge-buck topology is presented. This topology makes it possible to achieve soft-switching, works at larger switching duty cycle with lower output voltages, and does not require current sharing loop because of the inherent current sharing capability. Moreover, a coupled-inductor current doubler topology is also presented in this paper allowing higher step-down ratio and lower output current ripple. Theoretical analysis and experimental results are presented.

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Sundar, T., and K. Umapathy. "Performance Comparison of PV based Buck Boost and Interleaved Buck Boost Converter Inverter based Solar Systems." Indian Journal of Science and Technology 10, no. 14 (April 1, 2017): 1–7. http://dx.doi.org/10.17485/ijst/2017/v10i14/104354.

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Zhang, Zhi, Hao Zhou, Chengliang Deng, and Qinghua Song. "Multiloop interleaved control for three-level buck converter in solar charging applications." IEICE Electronics Express 15, no. 11 (2018): 20180369. http://dx.doi.org/10.1587/elex.15.20180369.

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Sánchez Vázquez, Marco Antonio, Ismael Araujo-Vargas, and Kevin Cano-Pulido. "Emulator Based on Switching Functions for a Dual Interleaved Buck-Boost Converter." Mathematical Problems in Engineering 2019 (August 4, 2019): 1–10. http://dx.doi.org/10.1155/2019/5930548.

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Under the unavailability of some components of a complex system, the Hardware In the Loop (HIL) tool allows the emulation of other subsystems. When these devices are not available, a customized emulator can be developed based on the Piecewise Linear Model (PWLM) and a numerical method for solving the differential equations system. However, these implementations require the use of a Field Programmable Gate Array (FPGA) with extensive hardware resources. In this article we propose the use of switching functions for the modeling of power converters of a Hybrid Power System (HPS), allowing the reduction of hardware resources of the FPGA, and the number of steps per switching cycle is increased. The results are compared with SABER simulations and a PWLM evaluated with the Euler method.

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Esteki, Morteza, Ehsan Adib, Hosein Farzanehfard, and Sayed Abbas Arshadi. "Auxiliary circuit for zero‐voltage‐transition interleaved pulse‐width modulation buck converter." IET Power Electronics 9, no. 3 (March 2016): 568–75. http://dx.doi.org/10.1049/iet-pel.2014.0687.

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Tao, Luo, Zhao-zhao Wang, and Jian-wei Mei. "Mechanism Analysis and Closed Loop Simulation of Two-phase Interleaved BUCK Converter." IOP Conference Series: Materials Science and Engineering 439 (November 5, 2018): 052032. http://dx.doi.org/10.1088/1757-899x/439/5/052032.

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Lin, Bor-Ren, Po-Li Chen, and Kun-Liang Shih. "Analysis, design and experimentation of an interleaved active-clamping buck-type converter." International Journal of Electronics 97, no. 6 (June 2010): 677–93. http://dx.doi.org/10.1080/00207211003697814.

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Liao, H. K., T. J. Liang, L. S. Yang, and J. F. Chen. "Non-inverting buck–boost converter with interleaved technique for fuel-cell system." IET Power Electronics 5, no. 8 (2012): 1379. http://dx.doi.org/10.1049/iet-pel.2011.0102.

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Granados-Luna, Teresa-Raquel, Ismael Araujo-Vargas, Andrew J. Forsyth, Kevin Cano-Pulido, Pedro-Enrique Velazquez-Elizondo, Ilse Cervantes, Francisco Gomez-Olguin, and Alejandro Villarruel-Parra. "Two-Phase, Dual Interleaved Buck–Boost DC–DC Converter for Automotive Applications." IEEE Transactions on Industry Applications 56, no. 1 (January 2020): 390–402. http://dx.doi.org/10.1109/tia.2019.2942026.

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Villarruel-Parra, Alejandro, and Andrew J. Forsyth. "Modeling Phase Interactions in the Dual-Interleaved Buck Converter Using Sampler Decomposition." IEEE Transactions on Industrial Electronics 66, no. 5 (May 2019): 3316–22. http://dx.doi.org/10.1109/tie.2018.2854585.

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tha P, Ashi, Smitha Paulose, and Emmanual Babu P. "Modified Interleaved Buck Converter with Reduced Input Current and Number of Switches." International Journal of Engineering Trends and Technology 50, no. 3 (August 25, 2017): 155–60. http://dx.doi.org/10.14445/22315381/ijett-v50p224.

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