An Interleaved ZVS High Step-Up Converter for Renewable Energy Systems Applications

Nouri, Tohid; Shaneh, Mahdi; Benbouzid, Mohamed; Kurdkandi, Naser Vosoughi

doi:10.1109/tie.2021.3080211

Cited by 16 publications

(22 citation statements)

References 34 publications

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“…The comparison of the proposed converter with other similar interleaved converters is reported in Table 1. As shown, the auxiliary switches in the proposed converters [23, 24, 32, and 34] are switched at ZVS, while the auxiliary switch of the proposed converter is switched under ZCS. However, the converters in [23, 24, 32, and 34] require floating gate drives.…”

Section: Comparison and Experimental Resultsmentioning

confidence: 99%

“…However, in such converters, MOSFETs are not switched under ZVS, increasing switching losses [14, 15]. Zero voltage transition (ZVT), active clamp, and resonance techniques can remove MOSFETs switching and capacitive turn‐on losses [16–30]. The proposed ZVT cell in [16] is compact, low cost, and efficient and can improve the current imbalance between interleaved phases.…”

Section: Introductionmentioning

confidence: 99%

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A new interleaved high step‐up soft switching converter with simple auxiliary circuit and reduced voltage stress

Naeini

Shaneh

Mohammadi

et al. 2022

IET Renewable Power Gen

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This paper proposes a soft-switching high step-up DC/DC interleaved boost converter. The converter uses an interleaved structure to decrease input current ripple. The coupled inductor technique achieves high voltage gain without needing the extremely increased duty cycle. The applied auxiliary circuit provides zero-voltage-switching (ZVS) condition for both main switches with a minimum number of elements. In addition, all the diodes turn off with zero-current-switching (ZCS), alleviating the reverse recovery problem. Moreover, all power switches and diodes have low voltage stress. The voltage stress of the auxiliary switch is low, resulting in low C oss losses of the auxiliary switch. The other properties of the proposed converters are continuous-low-ripple input current, no need for the floating gate drive, and small size. The theoretical analysis is validated by a 250-W prototype with 40-V input to 400-V output voltage with a 100-kHz.switching frequency.

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Section: Comparison and Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new interleaved high step‐up soft switching converter with simple auxiliary circuit and reduced voltage stress

Naeini

Shaneh

Mohammadi

et al. 2022

IET Renewable Power Gen

Self Cite

View full text Add to dashboard Cite

show abstract

“…The other states can be considered such as transition states and eliminated from the analysis. 6,18,25,[27][28][29][30] Utilizing the obtained equations of the main states, voltage balance theory of L 1 and L m can be written such as (44) and (45).…”

Section: Voltage Gainmentioning

confidence: 99%

“…According to the key waveforms in Figure 2, main states of the converter performance are the second, the fourth, and the fifth states due to their time intervals during the switching cycle. The other states can be considered such as transition states and eliminated from the analysis 6,18,25,27–30 . Utilizing the obtained equations of the main states, voltage balance theory of L 1 and L m can be written such as (44) and (45).…”

Section: Analyses Of the Proposed Convertermentioning

confidence: 99%

“…Utilizing two power switches reduces voltage stress on the switches because of distributing voltage stress on them. 13 Various studies have proposed modified structures of quadratic boost converters 20,[23][24][25][26] due to its flexibility for new combinations, continuous input current, existence a ground between the load and source, and noticeable voltage gain for being used as the base of new configurations. Z-source and quasi Z-source converters are the two other kinds of converters for high step-up applications plus to the utilization of them in hybrid inverters.…”

Section: Introductionmentioning

confidence: 99%

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Ultrahigh step‐up DC‐DC converter consisting quadratic boost converter, multiplier cell, and three windings coupled inductor

Abbasi

Tanha

Rezaie

2022

Circuit Theory & Apps

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This paper presents an ultrahigh step‐up converter with combination of a quadratic boost converter, a multiplier cell, and a three windings coupled inductor. Main advantages of the converter include its high voltage gain, low voltage stress on the switch and most of the diodes, continuity of input current with low ripple, and existence of a common ground between the source and load. Furthermore, requiring small inductors leads to high efficiency performance of the converter. To confirm superiority of the proposed converter, it has been compared with the converters consisting coupled inductors. Analysis of the converter has been performed for its main operation modes to validate its quality and quantity factors. A prototype is built in order to experiment its performance per different conditions and evaluate the analysis. Rated values per the experiments are 25, 500, and 200 W for the input voltage, output voltage, and output power, respectively.

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Performance improvement of a zero‐voltage switching interleaved high step‐up DC–DC converter with low‐voltage stresses

Nouri

2023

IET Power Electronics

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This paper proposes a novel interleaved ultra‐large gain zero‐voltage switching (ZVS) DC–DC converter for renewable energy systems. By using coupled inductor (CI) and built‐in transformer (BIT), a high‐voltage gain is achieved. The secondary windings of the CIs are connected in series with the primary winding of the BIT and the secondary winding of the BIT is inserted in voltage multiplier cell (VMC). In such a case, the voltage gain is proportional to the multiplication of the turn's ratios of the CI and BIT. To increase the devices’ utilization, the active clamp circuit not only provide ZVS performance for the metal‐oxide‐semiconductor field‐effect transistor (MOSFETs) and recycles the leakage energy, but also participates in voltage gain enhancement. The voltage stress across the switches is considerably decreased and the low duty cycle reduces the conduction and switching losses. Low input current ripple, equal current sharing without a dedicated controller and common ground are the other merits of the proposed converter. Steady‐state analyses are presented and through a fair comparison, the superiority of the proposed converter over the state‐of‐the‐art is guaranteed. Finally, a 500‐W laboratory prototype with 20‐ to 400‐V voltage conversion is built to demonstrate the effectiveness of the proposed converter.

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An Interleaved ZVS High Step-Up Converter for Renewable Energy Systems Applications

Cited by 16 publications

References 34 publications

A new interleaved high step‐up soft switching converter with simple auxiliary circuit and reduced voltage stress

A new interleaved high step‐up soft switching converter with simple auxiliary circuit and reduced voltage stress

Ultrahigh step‐up DC‐DC converter consisting quadratic boost converter, multiplier cell, and three windings coupled inductor

Performance improvement of a zero‐voltage switching interleaved high step‐up DC–DC converter with low‐voltage stresses

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