High step‐up interleaved converter with soft‐switching using a single auxiliary switch for a fuel cell system

Chao, Kuei‐Hsiang; Yang, Min-Sen

doi:10.1049/iet-pel.2013.0790

Cited by 33 publications

(39 citation statements)

References 14 publications

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“…To make a fair comparison, the coupled inductors turns ratio (n) is considered equal to 2. As can be observed, the proposed converter has a higher voltage gain than the conventional interleaved boost converter and the converters presented in [42,43]. The interleaved converter, which is presented in [44], has a higher voltage gain in duty cycles below 0.4.…”

Section: Conversion Ratiomentioning

confidence: 83%

A floating-output interleaved boost DC–DC converter with high step-up gain

Kianpour

Shahgholian

2017

Automatika

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A new interleaved boost converter with high step-up gain is presented in this paper. The proposed topology integrates coupled inductors and floating-output capacitors technique into interleaved boost converter to provide high step-up voltage gain without extreme duty cycle. The voltage stress on the power switches and diodes is very low, so low-cost and highperformance semiconductor devices can be employed. Also, the reverse recovery problem of all diodes is mitigated and zero-current-switching (ZCS) turn-on operation of the main switches is established as well. In addition, the passive clamp circuits are employed to suppress the voltage spikes across the main switches during turn-off instants. The operating principles and steady-state analysis of the proposed converter in continuous condition mode are explained. Finally, the simulation and experimental results of prototype 25-400 V circuit with 200 W output power are provided to verify the performance of presented topology.

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Section: Conversion Ratiomentioning

confidence: 83%

A floating-output interleaved boost DC–DC converter with high step-up gain

Kianpour

Shahgholian

2017

Automatika

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“…AC-DC converters with input power factor correction (PFC) that consist of two or more interleaved boost converter (IBC) modules are used widely in industry [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. As it was discussed previously, soft-switching approaches for these converters can either be zerovoltage switching (ZVS) if they are implemented with MOSFETs or zero-current switching (ZCS) if implemented with IGBTs.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Although the problem of hard switching of the auxiliary switch is solved in [11], yet it works like that of [16], which means that the auxiliary switch should be operated four times in each switching cycle to turn main switches on and off with ZVS and ZCS respectively. Another disadvantage of this topology is that, it needs a bulky clamping capacitor C1 which is placed in the path of the main power circuit, so the auxiliary circuit is not completely separated from the main converter.…”

Section: Literature Reviewmentioning

confidence: 99%

A novel AC-DC interleaved ZCS-PWM boost converter

Rasoulinezhad

Abosnina

Moschopoulos

2018

2018 IEEE Applied Power Electronics Conference and Exposition (APEC)

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AC-DC converters with input power factor correction (PFC) that consist of two or more interleaved boost converter modules are popular in industry. PFC is a must in today's AC-DC converters as their input current must meet harmonic standards set by regulatory agencies.With interleaving, the input current of each module can make to be discontinuous and the size of their input inductors since interleaving can reduce the high ripple in each module and produce a net input current with a ripple that is comparable to that achieved with a single boost converter module with a large input inductor.In high-frequency converters, so as to achieve low harmonic, fast dynamic response, low size, and high-power density the frequency should be increased. The drawback of increasing the switching frequency is increasing the switching losses. This is reason that why soft-switching methods should be used. The focus of the thesis is on zero current switching (ZCS) methods for insulated gate bipolar transistor (IGBT) converters. The auxiliary switch in the proposed converter is activated whenever a main converter switch is about to be turned off, gradually diverting current away from the switch so that it can turn off with ZCS and eliminate the switching losses. In addition, the auxiliary circuit is designed in a way that it can be activated only when the converter is operating with heavier loads and not used when the converter is operating with light load to maximize the overall efficiency.The operation of the novel converter will then be explained and the mathematical analysis in steady-state will be derived. Based on the results of the analysis, general design guidelines will be provided. Finally, the design procedure will be confirmed by experimental results obtained from the proof of concept prototype.

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“…But, small amount of end power is their typical defect [1]. In grid-tied usage, DC input voltage of a converter have to be high abundant to infuse power to utility grid [2]. For switching mode power supplies (SMPS) it requires high efficiency and more power density with high switching frequency can reduce the size of the power converters.…”

Section: Introductionmentioning

confidence: 99%

Integrated Buck Boost Series Parallel Fly-Back Converter for Electronic Ballast and LED Drive Applications

2019

IJRTE

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Integrated Buck Boost Series Parallel Fly-Back Converter (IBBSPFC) a single MOSFET Switch is used. This IBBSPFC can achieve high or low voltages by buck and boost process. The pass through a filter capacitances be able to be low thus to facilitate film capacitor can be used. Buck-boost converter can operate in Buck mode and Boost mode with continuous conduction mode by the inductor and capacitors. In this design, regulation and reliability of the converter improves when the capacitors are linked in series among the main winding of isolation transformer and the power transfer capability is improved by parallel connection of the isolation transformer with capacitor. By this IBBSPFC can increase and decrease of volt conversion without any transformer losses is obtained for different duty cycles. Therefore, this is beneficial for higher efficiency and reliability and the cost of the System can be reduced by using Fast recovery diodes, inductor and capacitors. By Conversion of 24V input to 50VOutput in continuous conduction mode (CCM) under 100W output power is obtained.

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High step‐up interleaved converter with soft‐switching using a single auxiliary switch for a fuel cell system

Cited by 33 publications

References 14 publications

A floating-output interleaved boost DC–DC converter with high step-up gain

A floating-output interleaved boost DC–DC converter with high step-up gain

A novel AC-DC interleaved ZCS-PWM boost converter

Integrated Buck Boost Series Parallel Fly-Back Converter for Electronic Ballast and LED Drive Applications

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