Overview of High-Step-Up Coupled-Inductor Boost Converters

Liu, Huawu; Hu, Haibing; Wu, Hongfei; Batarseh, Issa

doi:10.1109/jestpe.2016.2532930

Cited by 336 publications

(177 citation statements)

References 82 publications

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“…[1][2][3][4][5][6][7] In conventional, step-up boost converters duty ratios have to be chosen near to unity to achieve higher voltage conversion ratios. 12 In Saadatizadeh et al, 13 an interleaved boost converter with three-winding coupled inductors is presented to reduce the ripple of the input current and increase the voltage gain; also, in Babaei, 14 coupled-inductor-based buck and boost converters are introduced, which can restrain the input current ripple. Considerable spikes on active switches would occur which forces the designer to choose switches and diodes that can tolerate higher range of voltages; consequently, the conduction losses and costs would increase.…”

Section: Introductionmentioning

confidence: 99%

Expandable interleaved high voltage gain boost DC‐DC converter with low switching stress

Saadatizadeh

Heris

Babaei

et al. 2019

Circuit Theory & Apps

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In this paper, an interleaved DC-DC step-up boost converter with high voltage conversion ratio and low voltage stresses on switches and diodes is proposed.The proposed converter has low average current passing through the diodes and switches and low input current ripple as a feature of interleaved converters. The voltage gain of the proposed converter can be increased by adding more diode-capacitor modules; therefore, the proposed converter has expandable structure. In addition, by implementing more diode-capacitor modules, the switching stresses would be more decreased. Also, to evaluate the performance of the proposed converter, it is compared with other similar presented circuits in the literature. The proposed converter is not only able to provide higher voltage gain but also has lower voltage stresses on switches and diodes.Consequently, switches and diodes with low voltage ratings can be selected.Theoretical analysis is provided in this study for each operation mode and the average current through the switches, diodes and inductors, voltage stresses on switches and diodes, voltage gain, and input current ripple are calculated. Finally, to demonstrate the accuracy performance of the proposed converter, a 450-W prototype is implemented practically.KEYWORDS diode-capacitor, high voltage gain, interleaved DC-DC converter, low input current ripple, low voltage stresses on switches

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Section: Introductionmentioning

confidence: 99%

Expandable interleaved high voltage gain boost DC‐DC converter with low switching stress

Saadatizadeh

Heris

Babaei

et al. 2019

Circuit Theory & Apps

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“…Even though by adding the secondary winding of these converters the voltage gain of the converter increases, several drawbacks such as leakage inductances which causes the resonances, voltage spikes, and consequently the related losses and high input current ripples may occur. 8 In recent years, numbers of dc-dc converters with coupled inductor in their topology are proposed which have suppressed the voltage spikes through active clamping circuits 9 and soft switching techniques in Tarzamni et al 10 Also, they have restricted the input current ripple. 11 Transformerless DC-DC boost converters are applied in power systems recently to avoid the disadvantages of the converters with transformer or coupled inductor in their power circuits.…”

Section: Introductionmentioning

confidence: 99%

A new switched‐capacitor/switched‐inductor–based converter with high voltage gain and low voltage stress on switches

Heris

Saadatizadeh

Sabahi

et al. 2019

Circuit Theory & Apps

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Summary In this paper, a nonisolated transformerless switched‐capacitor/switched‐inductor–based dc‐dc converter with high voltage gain is proposed. The proposed converter has low voltage stress on switches and diodes which leads to decrease the switching losses. The voltage gain of the proposed converter can be increased by adding more diode‐capacitor modules at output side; therefore, the proposed converter has expandable structure. The proposed converter has higher voltage gain and lower voltage stress on switches comparing with the other similar switched‐capacitor–based converters. The proposed converter uses two switches with the same switching pattern. Therefore, its switching pattern is not complicated. In this paper, the proposed converter is analyzed during a switching period which has two operating modes. Moreover, the average current through the switches, diodes, and inductors; voltage stress on switches and diodes; voltage gain; maximum and minimum current of switches and diodes; and the efficiency curve are calculated. Finally, in order to verify the accuracy performance of the proposed converter, a 530‐W 40 to 920‐V prototype is implemented practically.

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“…Stacked high step-up coupled-inductor boost converters discussed in [21] can obtained a very high voltage-gain and low voltage stress for power semiconductors, but the input current ripple of these converters are higher. The interleaved boost converters with winding-cross-coupling mentioned in [21] obtain a high voltage-gain, low voltage stress for power semiconductors and low input current ripple.…”

Section: Introductionmentioning

confidence: 99%

“…The interleaved boost converters with winding-cross-coupling mentioned in [21] obtain a high voltage-gain, low voltage stress for power semiconductors and low input current ripple. The Cascaded boost converters [22] can also obtain a high voltage-gain, but these converters have high input current ripple.…”

Section: Introductionmentioning

confidence: 99%

Input-Parallel Output-Series DC-DC Boost Converter With a Wide Input Voltage Range, For Fuel Cell Vehicles

Wang

Zhou

Zhang

et al. 2017

IEEE Trans. Veh. Technol.

150

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An input-parallel, output-series DC-DC Boost converter with a wide input voltage range is proposed in this paper. An interleaved structure is adopted in the input side of this converter to reduce input current ripple. Two capacitors are connected in series on the output side to achieve a high voltage-gain. The operating principles and steady-state characteristics of the converter are presented and analyzed in this paper. A 400V/1.6kW prototype has been created which demonstrates that a wide range of voltage-gain can be achieved by this converter and it is shown that the maximum efficiency of the converter is 96.62%, and minimum efficiency is 94.14% The experimental results validate the feasibility of the proposed topology and its suitability for fuel cell vehicles.

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Overview of High-Step-Up Coupled-Inductor Boost Converters

Cited by 336 publications

References 82 publications

Expandable interleaved high voltage gain boost DC‐DC converter with low switching stress

Expandable interleaved high voltage gain boost DC‐DC converter with low switching stress

A new switched‐capacitor/switched‐inductor–based converter with high voltage gain and low voltage stress on switches

Input-Parallel Output-Series DC-DC Boost Converter With a Wide Input Voltage Range, For Fuel Cell Vehicles

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