Three-Phase Push–Pull DC–DC Converter: Analysis, Design, and Experimentation

Larico, Hugo Rolando Estofanero; Barbi, I.

doi:10.1109/tie.2011.2177609

Cited by 27 publications

(13 citation statements)

References 16 publications

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“…In Andersen and Barbi, 21 a three-phase push-pull converter with Y-Y transformer connected is tested; however, it has some operating constraints with minimum duty cycle value but is a good candidate to be widely used in fuel cell and photovoltaic applications. 22 As reported in literatures, several dc-dc converters with a three-phase high frequency (HF) transformer have good efficiency, performance, and some type of active clamp or soft switching technique. [23][24][25][26][27] Additionally, a three-phase transformer provides greater safety and galvanic isolation, high voltage gain, and also increases the filter's operation frequency.…”

Section: Figurementioning

confidence: 99%

“…In Yang and Do, a high‐voltage step‐up converter with a single magnetic component is shown, where it provides high dc voltage gain and soft‐switching for lower‐power application. In Andersen and Barbi, a three‐phase push‐pull converter with Y‐Y transformer connected is tested; however, it has some operating constraints with minimum duty cycle value but is a good candidate to be widely used in fuel cell and photovoltaic applications …”

Section: Introductionmentioning

confidence: 99%

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Three‐phase step‐up/step‐down isolated dc‐dc converter with wide‐range duty cycle for low dc renewable energy sources applications

Mayer

Kattel

Oliveira

2018

Circuit Theory & Apps

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Summary Renewable sources of low voltage are an important resource in power generation systems. Many provide high output current at low voltage, as the photovoltaic modules and fuel cells systems, therefore, become more popular considering the safety requirements. In this paper, a novel current‐fed three‐phase dc‐dc converter with high‐frequency isolation transformer is proposed. This one has the main features as high dc voltage gain, reduced switches count, minimize the volume of the output/input filters, the frequency ripple of the input current and output voltage are three times higher than the switching frequency, best losses distribution and reduced stresses in the circuit. Moreover, it operates with wide‐range duty cycle, the soft‐start can be used, which allows the input current and the output voltage to be started gradually. Operating with a duty cycle of 1/3 and 2/3, the input current ripple is canceled. The proposed converter is studied qualitatively and quantitatively, being presented the operation principle in continuous and discontinuous conduction mode, dc voltage gain in each operation mode, and the voltage and current stresses for the power components sizing. To validate the operation of the proposed converter, the laboratory design example and experimental results are presented to demonstrate the performance and validate the claims of the converter for wide load variation. Experimental results are presented for a 4‐kW prototype, operating in R2 region for continuous conduction mode. Additionally, experimental results in R1 and R3 regions are obtained.

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Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Three‐phase step‐up/step‐down isolated dc‐dc converter with wide‐range duty cycle for low dc renewable energy sources applications

Mayer

Kattel

Oliveira

2018

Circuit Theory & Apps

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“…Modular design of high frequency isolated DC-DC power conversion provides high reliability and high power density as two essential requirements of such applications [5]- [16].…”

Section: Introductionmentioning

confidence: 99%

Series-Input Parallel-Output Modular-Phase DC–DC Converter With Soft-Switching and High-Frequency Isolation

Mohammadpour

Parsa

Todorovic

et al. 2016

IEEE Trans. Power Electron.

108

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Multi-phase soft-switching high-frequency isolated DC-DC converter is proposed for power conversion in modular stacked HVDC power transmission and distribution system. Input-series output-parallel connection of current-fed full-bridge DC-DC converter modules is proposed to increase voltage blocking capability at the input and decrease current ripple at the output. Basic power electronic building block is zero-current switching (ZCS) fullbridge phase-shift PWM DC-DC converter. Phase shift between switches in each leg of the converter is adjusted to control power flow while phase shift between gate signals of individual phases is selected according to the number of phases in order to minimize ripple of the output voltage. Converter analysis is carried out to develop a simple equivalent boost converter model of the three-phase soft-switching converter suitable for system-level analysis and simulation. Strategies are developed to ensure fast detection of faults and continued operation of the converter in the case of fault in one phase module. To verify the proposed system design and analysis, experimental results on scaled-down laboratory prototype are presented for a three-phase ZCS DC-DC converter. Index Terms Isolated DC-DC converter, zero-current-switching, subsea power distribution v An early version of this work has been presented at IEEE IECON 2013. Mohammadpour, A.; Parsa, L.; Todorovic, M.H.; Rixin Lai; Datta, R., "Interleaved multi-phase ZCS isolated DC-DC converter for sub-sea power distribution

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“…There exist topologies capable for avoiding the small duty ratio; these use transformers, capacitors and/or multistage converters [4][5][6][7][8][9][10][11][12]. According to literature [13], the system may also operate at two stages, on the first hand may include a conventional buck converter and, on the second hand an isolated converter, which may operate under 50% of the duty ratio.…”

Section: Introductionmentioning

confidence: 99%

Delayed quadratic buck converter

Vázquez

Reyes-Malanche

Vázquez³

et al. 2016

IET Power Electronics

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Nowadays, the microprocessors family normally require for the input source not only low voltage but also high current. There exists an increasing necessity for developing new applied techniques on topologies and control strategies, which may be able to fulfil such requirements. Although a considerable amount of applications use the conventional buck converter for step-down for DC/DC conversion, when a high step-down conversion is required is a much better choice to implement the quadratic buck converter (QBC); however, the problem for obtaining a high step-down conversion at wide duty ratio still remains. This document proposes the delayed quadratic buck converter, which offers a very high-step-down dc-dc conversion with a wide duty cycle. The QBC is modified in its topology by adding an inductor, which allows us to obtain for the duty cycle a higher increment than this normally obtained by a quadratic one. Converter behaviour and analysis are illustrated. Experimental results are also shown for a conversion from 36 to 1.5 V and an output power of 20 W.

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Three-Phase Push–Pull DC–DC Converter: Analysis, Design, and Experimentation

Cited by 27 publications

References 16 publications

Three‐phase step‐up/step‐down isolated dc‐dc converter with wide‐range duty cycle for low dc renewable energy sources applications

Three‐phase step‐up/step‐down isolated dc‐dc converter with wide‐range duty cycle for low dc renewable energy sources applications

Series-Input Parallel-Output Modular-Phase DC–DC Converter With Soft-Switching and High-Frequency Isolation

Delayed quadratic buck converter

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