Single-Switch Resonant Soft-Switching Ultra-High Gain DC-DC Converter With Continuous Input Current

Abbasian, Sohrab; Gohari, Homayon Soltani; Farsijani, Mohammad; Abbaszadeh, Karim; Hafezi, Hossein; Filizadeh, Shaahin

doi:10.1109/access.2022.3161456

Cited by 19 publications

(16 citation statements)

References 34 publications

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“…The voltages on C1, C2 and C3 are shown in Fig.9. The measurements indicate that the experimental results are in agreement with the theoretical predictions given in (21)-(23). The waveforms of the voltage and current on S are shown in the Fig.10.…”

supporting

confidence: 85%

“…The waveforms of the voltage and current on S are shown in the Fig.10. As expected, the blocking voltage corresponds to the value of VC1 defined by(23). Fig.11presents the turnon/turn-off transient intervals regarding S. Even though ZVS is not achieved, the turn-on loss is low because there is almost no simultaneous current and voltage during this interval.…”

supporting

confidence: 52%

“…In the proposed converter, the blocking voltage of both S and D1 are equal to VC1 (given in ( 23)), while D2 and D3 are subjected to Vo -VC1 (given in ( 30)). 23 1…”

Section: Static Modelmentioning

confidence: 99%

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Single-Switch High-Step-Up DC-DC Converter Employing Coupled Inductor and Voltage Multiplier Cell

2022

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This paper introduces a high-step-up dc-dc converter to provide voltage boosting in lowvoltage applications. The circuit contains only a single active switch and is based on the boost-type converter using coupled inductor and voltage multiplier cell. The proposed topology exhibits high efficiency, reduced voltage stress on the semiconductors and requires a low component count. The circuit is intended for applications with rated power in the order of a few hundreds of Watts, which corresponds to the typical level of a single photovoltaic (PV) module. A detailed mathematical description of the circuit operation is carried out, providing the means for the adequate design of the converter. The dynamic analysis is also addressed in the paper, and proper closed-loop operation is demonstrated. A 400 W prototype operating at 90 kHz, with an input voltage range of 24-48 V and output voltage of 400 V was built and tested in laboratory. Experimental results validate the analyses carried out and measurements indicate efficiency levels up to 97.5%, which ratifies the proposed converter as a good solution for typical PV applications.INDEX TERMS High voltage gain, high step-up, coupled inductor, voltage multiplier cell.

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supporting

confidence: 85%

supporting

confidence: 52%

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Single-Switch High-Step-Up DC-DC Converter Employing Coupled Inductor and Voltage Multiplier Cell

2022

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“…is set of factors makes the conduction losses in the converter components high. Consequently, the boost converter does not perform well for high voltage gain applications [13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Stacked Input-Output High Step-Up Buck-Boost DC-DC Converter with Coupled Inductor and Voltage Multiplier

Faistel

Toebe

Andrade

et al. 2022

International Transactions on Electrical Energy Systems

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This paper presents three high voltage gain DC-DC converters based on stacked input and output connection of nonisolated buck-boost converters with coupled inductor and voltage multiplier cells. Besides that, an empirical approach for the coupled inductor winding is proposed to show how to reduce the leakage inductance. In this way, the proposed converter achieves high voltage gain, low voltage, and current stress across the components without using an auxiliary clamp circuit, and they present a low component count. Besides that, this paper presents the evaluation of MPPT, modeling, and control of the converters. To validate the theoretical evaluations, three prototypes were built and evaluated experimentally, considering input power of 200 W, input voltage of 37.4 V, output voltage of 400 V, and switching frequency of 50 kHz. Finally, it should be noted that the maximum efficiency achieved is 97.53% at nominal input power.

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“…9,[14][15][16][17]21 Recently, researchers are working on developing the new topologies of three-winding coupled inductor converters to increase the converter's voltage gain. [27][28][29][30][31] It is normal that by increasing the number of coils, voltage gain of the converter will be increased, but in the articles based on three-winding coupled inductors that have been published in the past, the inductor size and its core dimensions have not been compared with two-winding structures.…”

mentioning

confidence: 99%

Theoretical and experimental evaluation of SEPIC‐based DC–DC converters with two‐winding and three‐winding coupled inductors

Mahmoudi

Ajami

Babaei

et al. 2022

Circuit Theory & Apps

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In this paper, an SEPIC‐based direct current–direct current (DC–DC) converter with high voltage gain and continuous input current is provided. Input current Continuity is a great advantage for renewable resources applications, and a small filter can be used in the output of these sources. Also in this paper, the effect of coupled inductor in three‐winding structure is discussed compared to the two‐winding coupled inductor. Precise analysis of converters based on two‐winding and three‐winding coupling inductors requires that the structures be similar so that the evaluation can be performed correctly. A comparison is performed between the two‐winding coupled inductor‐based converter and the improved converter to show the advantages of the proposed converter. All elements of the converter have been compared, and since both converters are different in terms of coupled inductor, complete analyses have been done in the field of calculating inductors. In addition to the features of the two‐winding coupled inductor converter, the proposed converter requires smaller coupled inductor to decrease the core size and increase the converter efficiency.

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Single-Switch Resonant Soft-Switching Ultra-High Gain DC-DC Converter With Continuous Input Current

Cited by 19 publications

References 34 publications

Single-Switch High-Step-Up DC-DC Converter Employing Coupled Inductor and Voltage Multiplier Cell

Single-Switch High-Step-Up DC-DC Converter Employing Coupled Inductor and Voltage Multiplier Cell

Stacked Input-Output High Step-Up Buck-Boost DC-DC Converter with Coupled Inductor and Voltage Multiplier

Theoretical and experimental evaluation of SEPIC‐based DC–DC converters with two‐winding and three‐winding coupled inductors

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