Interleaved-Input Series-Output Ultra-High Voltage Gain DC–DC Converter

Salehi, Seyed Mohsen; Dehghan, Seyed Mohammad; Hasanzadeh, Saeed

doi:10.1109/tpel.2018.2853577

Cited by 54 publications

(39 citation statements)

References 28 publications

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“…To determine advantages of the proposed DC–DC converter over the previously presented converters in [30, 31, 33, 35, 40–43], comparison has been conducted in different aspects and the results are presented in Table 1. In addition, the voltage step‐up gain and voltage stress waveforms are plotted in Fig.…”

Section: Performance Comparisonmentioning

confidence: 99%

“…Although the presented converters in [30, 33, 35] have two fewer windings and one fewer core, equal current sharing performance is not met in [30, 33]. Also, there are five more diodes and four more capacitors used in [35]. The DC–DC converter presented in [41] has one fewer capacitor and two fewer windings.…”

Section: Performance Comparisonmentioning

confidence: 99%

“…Whereas transformer‐less converters take the advantage of simplicity, large numbers of VMCs must be adopted for them which increases their complexity and cost. One emerging solution to this problem involves the integration of CI to VMCs [24–38]. By varying turns ratio of couple‐inductor, voltage step‐up gain can be markedly improved and voltage stress across switching devices can be decreased to a great extent.…”

Section: Introductionmentioning

confidence: 99%

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New interleaved high step‐up converter based on a voltage multiplier cell mixed with magnetic devices

Nouri

Shaneh

2020

IET power electron.

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A high step voltage ratio converter is introduced in this study. In order to improve the voltage gain and the voltage stress of semiconductors, coupled‐inductor (CI) combined with built‐in transformer (BIT) and voltage multiplier cell are employed. Therefore, comparing with previously presented converters in which only CI or BIT structure was used, a greater degree of freedom is obtained. Consequently, the low voltage rated semiconductors can be utilised which in turn decrease the conduction losses. To deal with the ringing phenomenon and reverse recovery problem, zero‐current switching turn‐on/turn‐off are well achieved for switches/diodes via leakage inductances of magnetic means. Moreover, by employing passive clamps, leakage energy is recycled. Furthermore, due to the interleaved structure, the input current ripple is considerably diminished. In addition, the share of input current between different phases is equitable as a result of the charge balance of capacitors. With all these in mind, the proposed structure is a good candidate for high current and high power applications. Finally, in order to validate the effectiveness of the proposed topology, a 600 W 24 V/480 V laboratory prototype is fabricated.

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Section: Performance Comparisonmentioning

confidence: 99%

Section: Performance Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New interleaved high step‐up converter based on a voltage multiplier cell mixed with magnetic devices

Nouri

Shaneh

2020

IET power electron.

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“…In [24], an interleaved flyback converter featuring ZVS was introduced, and the integration of the flyback and forward cells was investigated in [25]. In addition, interleaved configurations employing seriesconnected voltage multiplier cells were proposed in [26][27][28], in which the high step-up conversion ratio is achieved.…”

Section: Introductionmentioning

confidence: 99%

Generalised analysis of the high‐voltage‐gain interleaved ZVS boost‐flyback converter

Gonçalves¹,

Agostini²

2020

IET Power Electronics

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This study proposes the generalised analysis of the interleaved zero-voltage-switching (ZVS) boost-flyback converter containing a number k of interleaving cells. The analysis provides a general description of the energy transfer process of the circuit and yields a systematic approach for the adequate converter design. The effect of the leakage inductance on the voltage gain is verified in detail, enabling the designer to deal with the trade-off between high step-up operation and soft-switching occurrence. In addition, the conditions to guarantee ZVS for all switches are investigated, providing the basis for the adequate choice of the auxiliary switching capacitance and dead time. Experimental results obtained from the testing of a 500 W, 100 kHz, 96.9% peak efficiency prototype validate the analysis carried out and the proposed design procedure for the converter.

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“…Compared with isolated DC–DC converters, non‐isolated DC–DC converters have some merits such as less cost, small‐sized, lightweight, higher power density and more efficient [16–18]. Therefore, high gain topologies were widely studied and many novel topologies were proposed [19–31]. Earlier proposed high gain topologies were summarised in [18].…”

Section: Introductionmentioning

confidence: 99%

Three‐phase interleaved high step‐up bidirectional DC–DCconverter

Wang

et al. 2020

IET power electron.

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Interleaved-Input Series-Output Ultra-High Voltage Gain DC–DC Converter

Cited by 54 publications

References 28 publications

New interleaved high step‐up converter based on a voltage multiplier cell mixed with magnetic devices

New interleaved high step‐up converter based on a voltage multiplier cell mixed with magnetic devices

Generalised analysis of the high‐voltage‐gain interleaved ZVS boost‐flyback converter

Three‐phase interleaved high step‐up bidirectional DC–DCconverter

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