A Quasi-Resonant Current-Fed Converter With Minimum Switching Losses

Dobakhshari, Sina Salehi; Milimonfared, Jafar; Taheri, M.; Moradisizkoohi, Hadi

doi:10.1109/tpel.2016.2528893

Cited by 76 publications

(31 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition to these soft-switching circuits, some nonisolated and isolated dc-dc converters also benefit from implementing a small resonant capacitor in series with one side of the magnetic coupling (i.e., coupled inductor/transformer) in order to achieve quasi-resonant operation. These circuits often have stable soft-switching features throughout their operating points and load variations [130], [203], [204], [207], [210], [266].…”

Section: Hard Switched/soft Switchedmentioning

confidence: 99%

“…With the goal of enhancing boost ability or optimizing other features, a number of studies have focused on developing new types of dc-dc converters, including impedance (Z-) sourcebased isolated dc-dc converters, DAB topologies, dual-halfbridge topologies, etc. [226], [229]- [231], [249], [265], [266], [280], [287]- [288], [295]- [297]. It is worth mentioning that the operation of a converter containing transformers should be investigated using a complete model of the transformer that contains magnetizing inductance and the leakage inductances of the windings.…”

Section: Magnetic Couplingmentioning

confidence: 99%

See 1 more Smart Citation

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.

1,436

623

View full text Add to dashboard Cite

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.

show abstract

Section: Hard Switched/soft Switchedmentioning

confidence: 99%

Section: Magnetic Couplingmentioning

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.

1,436

623

View full text Add to dashboard Cite

show abstract

“…The active clamp circuits employed with the presented topology offers zerovoltage switching (ZVS) to reduce the switching stress and switching losses of the power electronic switch. 13 Figure 2 shows the conventional low boost single-ended primary-inductor converter (SEPIC) converter fed brushless DC (BLDC) motor drive developed for the EV applications. 14 Generally, a bidirectional DC-DC converter constructed with a phase-shift control strategy is mostly prepared for the HEV applications due to its simple topology and easy implementation of soft switching.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of PV based modified SEPIC converter fed hybrid electric vehicle (PV‐HEV)

Natchimuthu

Muniraj²,

Mark

2020

Circuit Theory & Apps

View full text Add to dashboard Cite

This paper presents a high gain modified three-port dual boost single-ended primary-inductor converter (SEPIC) converter operated hybrid photovoltaic (PV)/battery electric vehicle to improve the power transfer capability and efficiency of the power conversion stage. The proposed three-port dual boost high gain SEPIC converter accepts wide voltage range of input then the conventional single stage SEPIC converter. The three-winding high frequency coupling transformer integrates the two input sources and step-up the input voltage. The theoretical and experimental analyses are presented to validate the performance of the proposed modified SEPIC converter in boosting the wide range of input voltage. A 6 kW, 12 to 600 V of experimental model has been developed and tested. The efficiency obtained from the designed model is around 94.11%. K E Y W O R D SDC-DC power conversion, high boost dual input SEPIC converter, hybrid electric vehicle (HEV), hybrid PV/battery, PV array, three-port converter, voltage source inverter (VSI)

show abstract

“…The soft-switching techniques for dc-dc, dc-ac, ac-dc and ac-ac converters are prime objective in minimizing the losses thus to improve the efficiency with reduction in EMI/EMC phenomena. The various soft-switching techniques for semi-conductor switches have been proposed [6][7][8][9][10][11][12][13][14][15]. A novel soft-switching dc-dc converter with significant voltage gain is presented [7].…”

Section: Introductionmentioning

confidence: 99%

“…Zero-voltage transition, which is part of soft-switching methods, is implemented with an built-in transformer [8][9], but this is obvious that high frequency inductor makes the compact to its size and volume. The minimization of switching losses using quasi-resonant principle for current-fed converter is proposed by S. Dobakhshri et.al [10]. This converter preserves inherent advantages of current-fed structures, for instance, zero magnetizing dc offset, low input ripple, and low transformer turn ratio.…”

Section: Introductionmentioning

confidence: 99%

Minimization of Input Ripple Current for Soft-Switching Buck-Boost Converter

Behera,

Kumar,

Behera

2019

IJEAT

View full text Add to dashboard Cite

Among all dc-dc converters, the present trend of utilities is buck-boost converter which is capable enough to operate under on/off control so as to step-up and stepping-down the fixed input voltage by varying its duty-ratio of the switch. This converter possesses hard-switched one that means the switching device operate on non-zero voltage or non-zero current and leads to significant increase in switching loss. This issue leads to use of soft-switching of device. As far as the soft- switching of buck-boost converter is concerned, very few papers appear in literature. But in most of these cases, hardly the attention has been given to look into the aspect of ripple content at the input current level. Higher the ripple content at the input not only affect the electrical equipment (i.,e such as adding core losses to transformer in line thus reduction in efficiency), but also causes electromagnetic interference with nearby telecommunication lines and measuring equipment etc. Though there is an option to include the low-pass filter at input, but that creates a hindrance in providing the oscillation along dc link because of input filter in parallel with secondary components across the switch and load. In this research work, the parallel operation of soft-switching buck-boost converter is proposed by modifying the circuit [15] and the circuit is operated with its optimum level so as to minimize the requirement of components. The components of this converter are properly designed to enable soft-switching for the switch. The simulation of the proposed circuit is carried out by MATLAB (Simulink) to validate performance.

show abstract

A Quasi-Resonant Current-Fed Converter With Minimum Switching Losses

Cited by 76 publications

References 34 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

Experimental investigation of PV based modified SEPIC converter fed hybrid electric vehicle (PV‐HEV)

Minimization of Input Ripple Current for Soft-Switching Buck-Boost Converter

Contact Info

Product

Resources

About