Single‐switch high step‐up converter based on coupled inductor and switched capacitor techniques with quasi‐resonant operation

Forouzesh, Mojtaba; Yari, Keyvan; Baghramian, Alfred; Hasanpour, Sara

doi:10.1049/iet-pel.2015.0923

Cited by 99 publications

(75 citation statements)

References 28 publications

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“…On the other hand, soft-switching converters can reduce the above disadvantages while utilizing stray inductance and capacitance as part of a resonance circuit to achieve zero-voltage switching (ZVS) or zero-current switching (ZCS). As voltage and current during transitions are zero, dc-dc converters can operate at high frequency, which often enables reductions size and weight [127]- [137], [203]- [212], [218]- [219], [246]- [269], [288]- [292], [295]- [297].…”

Section: Hard Switched/soft Switchedmentioning

confidence: 99%

Step-Up DC–DC Converters: A Comprehensive Review of Voltage-Boosting Techniques, Topologies, and Applications

Forouzesh

Siwakoti

Gorji

et al. 2017

IEEE Trans. Power Electron.

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1,460

666

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DC-DC converters with voltage boost capability are widely used in a large number of power conversion applications, from fraction-of-volt to tens of thousands of volts at power levels from milliwatts to megawatts. The literature has reported on various voltage-boosting techniques, in which fundamental energy storing elements (inductors and capacitors) and/or transformers in conjunction with switch(es) and diode(s) are utilized in the circuit. These techniques include switched capacitor (charge pump), voltage multiplier, switched inductor/voltage lift, magnetic coupling, and multistage/-level, and each has its own merits and demerits depending on application, in terms of cost, complexity, power density, reliability, and efficiency. To meet the growing demand for such applications, new power converter topologies that use the above voltage-boosting techniques, as well as some active and passive components, are continuously being proposed. The permutations and combinations of the various voltage-boosting techniques with additional components in a circuit allow for numerous new topologies and configurations, which are often confusing and difficult to follow. Therefore, to present a clear picture on the general law and framework of the development of next-generation step-up dc-dc converters, this paper aims to comprehensively review and classify various step-up dc-dc converters based on their characteristics and voltage-boosting techniques. In addition, the advantages and disadvantages of these voltage-boosting techniques and associated converters are discussed in detail. Finally, broad applications of dc-dc converters are presented and summarized with comparative study of different voltage-boosting techniques.

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Section: Hard Switched/soft Switchedmentioning

confidence: 99%

Step-Up DC–DC Converters: A Comprehensive Review of Voltage-Boosting Techniques, Topologies, and Applications

Forouzesh

Siwakoti

Gorji

et al. 2017

IEEE Trans. Power Electron.

Self Cite

1,460

666

View full text Add to dashboard Cite

show abstract

“…In order to reduce the component count, single switch quadratic boost converters commonly are integrated. There are different designs of this structure were proposed in [3], [9]. Hence, two Zero Voltage Switching (ZVS) and Zero Current Switching (ZCS) are required in order to decrease the voltage stresses on power switches and improve the converter's efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…The clamping or snubber topology is effective and not only can minimize the voltage stresses on switches but only it can provide a zero voltage switching application. In [9], a novel passive snubber was introduced by using an extra inductor, a capacitor, and two diodes without any extra active power switch. The main disadvantage of snubber structure is their efficiency in small rated powers applications.…”

Section: Introductionmentioning

confidence: 99%

A Novel Step-Up Power Converter Configuration for Solar Energy Application

Ghaderi¹,

Bayrak²

2019

ElAEE

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Renewable Energy Sources (RES) including full cells, wind turbines, and photovoltaic panels, widely are spreading. Among all the renewable energy sources, solar power generation system tops the list. The first choice is the boost converter when the voltage step-up is the issue. But the most important subject is applying an efficient structure with high gain, cheap and quick controller circuit. Our proposed cascaded boost converter is one of such converters which consists of several cheap components such as diode, inductor, capacitor and power switch, which has same switching frequency and phase shift in comparison with conventional boost converters. In comparison with the classic cascaded boost converter, the voltage gain for the proposed structure is very high and by forming a preamplifier layer, for a duty cycle of 80 % by adding only two diodes, one inductor, and one capacitor for the second block, voltage gain is increased by 5 times compared to the classic boost converter. The proposed method provides the increased output voltage along with the duty cycle. The projected strategy has been verified with the help of Matlab/Simulink. Also, a hardware implementation of the proposed converter has been done around 200 W by applying a Jiangyin HR-200W-24V type solar panel.

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“…Moreover, such converters should have low input current ripple in order to achieve maximum power point tracking (MPPT) for PV applications and output power regulation of fuel cells. [4][5][6][7] Ideally, the conventional boost converters can attain infinite voltage gain when the duty ratio approaches unity. However, at higher duty ratio, the voltage gain and the efficiency degrade sharply due to the parasitic effect and the reverse recovery problem.…”

Section: Introductionmentioning

confidence: 99%

A wide load range ZVS high voltage gain hybrid DC‐DC boost converter based on diode‐capacitor voltage multiplier circuit

Priyadarshi

Kar

Karanki

2019

Int Trans Electr Energ Syst

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Summary In this paper, a single‐switch hybrid high voltage gain boost converter topology employing zero‐voltage switching (ZVS) feature is proposed. The proposed converter can achieve high voltage gain with soft switching operation over a wide range of load. The topology is a combination of the Cockcroft‐Walton diode‐capacitor voltage multiplier and a conventional boost converter, which results in a hybrid DC‐DC converter. The diode‐capacitor ladder enables the converter to achieve high voltage gain without a transformer or coupled inductor. Because of its transformerless design, single switch with lower duty cycle requirement, and ZVS feature, the efficiency of the converter is improved significantly. Moreover, due to the input inductor, it is able to provide lower input current ripple and variable fractional voltage gain, which is a key requirement for maximum power point tracking (MPPT) in photovoltaic application. A 480‐W hardware prototype with 48‐V input voltage and 450‐V output voltage is developed, and experimental results are presented to validate the efficacy of the proposed converter. The total achievable efficiency is above 95.4%, in the full load range (80‐480 W).

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Single‐switch high step‐up converter based on coupled inductor and switched capacitor techniques with quasi‐resonant operation

Cited by 99 publications

References 28 publications

Step-Up DC–DC Converters: A Comprehensive Review of Voltage-Boosting Techniques, Topologies, and Applications

Step-Up DC–DC Converters: A Comprehensive Review of Voltage-Boosting Techniques, Topologies, and Applications

A Novel Step-Up Power Converter Configuration for Solar Energy Application

A wide load range ZVS high voltage gain hybrid DC‐DC boost converter based on diode‐capacitor voltage multiplier circuit

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