Analysis and design of an interleaved current-fed high step-up quasi-resonant DC-DC converter for fuel cell applications

Salehi, Sina; Vahidi, B.; Milimonfared, Jafar; Taheri, M.; Moradi, Hadi

doi:10.3906/elk-1306-111

Cited by 5 publications

(5 citation statements)

References 26 publications

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“…According to Table , microbial fuel cells produce the irregular voltage (Voc) and irregular current (Isc) at low values, as in other fuel cell types . The electrical performance of the microbial fuel cells by the polarization curve provides the highest power generation.…”

Section: Resultssupporting

confidence: 74%

Alternative Biofuel Materials for Microbial Fuel Cells from Poplar Wood

Erensoy

Çek

2018

ChemistrySelect

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In this study, biofuel properties of poplar wood materials rich in organic materials were investigated for microbial fuel cells. Therefore, in this study, investigates the chemical, biochemical properties with electrochemical performance of single chamber microbial fuel cell manufactured using poplar biomass materials, natural soil, graphite anode electrode and graphite cathode electrode. With the increase in the weight of the poplar tree in the microbial fuel cells, the power density increased. SEM, EDS, FTIR analyses showed that bacillus and coccus type bacteria in the natural structure of the soil act as the catalyst in the anode electrode. Poplar wood, electrodes and bacteria have served in harmony. According to experimental results, the maximum power reaches to 16.88 mW and microbial fuel cell successfully displays a maximum power density of 8555 mW/m 2 . All these results indicate that poplar wood may be appropriate biofuel sources for electrical energy generation as an effective environmentally microbial fuel cell technology.

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Section: Resultssupporting

confidence: 74%

Alternative Biofuel Materials for Microbial Fuel Cells from Poplar Wood

Erensoy

Çek

2018

ChemistrySelect

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“…To harvest the energy appropriately, a power electronic converter must be utilised to smooth either voltage, current or to collect maximum power. Many kinds of converters and topologies have been introduced in this manner [1][2][3][4]. The converters development has been moving towards higher efficiency, higher power density, and lower costs [4].…”

Section: Introductionmentioning

confidence: 99%

“…Soft switching: switching loss constitutes a major portion of a converter's losses [3,4]. Therefore, soft switching is one of the most important subjects in power electronic converters.…”

Section: Introductionmentioning

confidence: 99%

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High step‐up double input converter with soft switching and reduced number of semiconductors

Dobakhshari

Fathi

Milimonfared

2020

IET Power Electronics

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A novel semi-isolated high step-up double-input converter with current-fed inputs is introduced in this study. The proposed converter can operate in double-input mode and single-input mode. It can manage the collected power from both inputs effectively. In addition, it makes a gentle transition between the modes, without the need for an abrupt change in pulse pattern, and does not utilise a breaker switch. Meanwhile, the converter preserves soft-switching as well as a few number of semiconductors (three switches and three diodes). These items have improved the efficiency of the converter to 94.5%. Moreover, it is a high-voltage gain (more than 13). Also, both input ports are current-fed, so the input currents are smoothed. These features make the converter compatible with hybrid renewable energy applications. Furthermore, all components are engaged in both modes, which results in an improved component's utilisation factor. A thorough analysis has been conducted to prove the characteristics mentioned above of the proposed converter. Theoretical analysis has been verified by simulation and experimental results of a 200 W prototype.

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“…Therefore, it has been widely used when the converter works at nominal condition and frequency. FMA is valid but less accurate in the below-resonance region, and it is useful for qualitative analysis but not for an optimal design procedure [19][20][21]. The AC equivalent circuit of a CLL resonant converter based on FMA analysis is shown in Figure 3.…”

Section: Circuit Design Principlesmentioning

confidence: 99%

High-voltage isolated multioutput power supply for multilevel converters

Sepehr¹,

Saradarzadeh²,

Farhangi³

2017

Turk J Elec Eng & Comp Sci

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Abstract:Multilevel converters are one of the major choices for realizing high electric power conversion. The major feature of multilevel converter topologies is the need for a large number of switches, each of which requires a gate driver circuit and an isolated DC power supply. In this paper, a pragmatic concept of design and implementation of an isolated DC-to-DC converter for a high-voltage isolated application is introduced. More specifically, a multiple isolated output power supply based on the benefits of resonant converters is designed to prepare 36 double DC voltages for driving power semiconductor devices in a three-phase, seven-level cascaded H-bridge that acts as a static synchronous series compensator (SSSC). The power supply contains several high-frequency transformers in series, carrying a high-frequency single turn current as their primary winding excitations, and they are improved by a resonant tank circuit to reduce switching and core losses. The proposed design has a high voltage insulation level, low cost, small size, adequate hold-up time, and an easily upwards extending structure. The feasibility of the design is clarified by simulation results and implementation in a high-power D-SSSC converter.

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Analysis and design of an interleaved current-fed high step-up quasi-resonant DC-DC converter for fuel cell applications

Cited by 5 publications

References 26 publications

Alternative Biofuel Materials for Microbial Fuel Cells from Poplar Wood

Alternative Biofuel Materials for Microbial Fuel Cells from Poplar Wood

High step‐up double input converter with soft switching and reduced number of semiconductors

High-voltage isolated multioutput power supply for multilevel converters

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