Three-Phase Weinberg Isolated DC–DC Converter: Analysis, Design, and Experimentation

Larico, Hugo Rolando Estofanero; Barbi, I.

doi:10.1109/tie.2011.2151814

Cited by 20 publications

(38 citation statements)

References 22 publications

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“…It is also observed that the maximum input current ripple value in R1 region is

{\overset{normalΔ I}{true}}_{U 1} = 1

for D = 0, while in R2 and R3, the maximum value are

{\overset{normalΔ I}{true}}_{U 1} = 1 false/ 4

and

{\overset{normalΔ I}{true}}_{U 1} = 1 false/ 12

for D = 1/2 and D = 5/6, respectively. The variation of input current ripple as a function of the duty cycle as proven, and their behavior is similar to the input current ripple of the three‐phase dc‐dc converters studied in Andersen and Barbi and Larico and Barbi …”

Section: Steady‐state Analysis Of Proposed Convertersupporting

confidence: 62%

“…According to Table , it can be seen that for duty cycle higher than 1/3, the dc voltage gain of proposed converter is two‐third of Andersen and Barbi, and the voltage stress in the R2 region is slightly higher. However, the switch voltage stress is not equal and higher than that of the topology in Larico and Barbi . On the other hand, the switch current stress in the proposed converter is 34 % less than that one proposed in Andersen and Barbi, as can be verified by Table , since it reduces the switches conduction losses.…”

Section: Comparison Between Proposed Converter and Others Three‐phasementioning

confidence: 61%

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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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“…It is also observed that the maximum input current ripple value in R1 region is

{\overset{normalΔ I}{true}}_{U 1} = 1

for D = 0, while in R2 and R3, the maximum value are

{\overset{normalΔ I}{true}}_{U 1} = 1 false/ 4

and

{\overset{normalΔ I}{true}}_{U 1} = 1 false/ 12

Section: Steady‐state Analysis Of Proposed Convertersupporting

confidence: 62%

Section: Comparison Between Proposed Converter and Others Three‐phasementioning

confidence: 61%

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

View full text Add to dashboard Cite

show abstract

“…In order to demonstrate the circuit advantages of the proposed converter, a detailed comparison with other converters is carried out and the results are presented in Table I. Compared with the three phase Weinberg converter in [24], the proposed converter has a lower main voltage stress and a lower switching loss due to the active clamp structure. The expandable characteristic and modular structure are also the merits of proposed converter.…”

Section: Iii． Proposed Topologies For Applicationsmentioning

confidence: 99%

High frequency inverter topologies integrated with the coupled inductor bridge arm

Hu¹,

Ji²,

Finney

et al. 2016

IET Power Electronics

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-A new topology of the high frequency AC (HFAC) inverter bridge arm is proposed which comprises a coupled inductor, a switching device and an active clamp circuit. Based on it, new single-phase and three-phase inverters are proposed and their operating states are analyzed along with the traditional H-bridge inverter.Multi-phase and multi-level isolated inverters are also developed using the HFAC bridge arm. Furthermore, based on the proposed HFAC, a frond-end DC-DC converter is also developed for photovoltaic (PV) systems to demonstrate the application of the proposed HFAC converter. Simulation and experimental results from prototype converters are carried out to validate the proposed topologies which can be utilized widely in high frequency power conversion applications such as induction heating and wireless power transfer.

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“…Fig. 1, presents the y-cycle range and its t mode for D ≤ 0,33 he reduction on the size are respectively is one of the most expensive elements in the pr current sources divides the c disadvantage of this topology presented in [9] and [12] is components which are aggreg As advantages, the Pushpassive components in th inductance value is lower Flyback-Boost converter be three times the switching fre the current efforts are higher three times higher than in current increase causes a h core.…”

Section: Analysis Of the Converter In Crcmmentioning

confidence: 99%

Three-phase Flyback-Boost DC-DC converter with three-phase high frequency isolation

Kattel

Oliveira

Perez

et al. 2013

2013 Brazilian Power Electronics Conference

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This paper presents a new modulation strategy of the three-phase DC-DC Boost converter with high frequency isolation. This work has as its main objective to present a solution to deal with the forbidden region found in the study of the referred converter. The proposed modulation keeps the main characteristics of the original topology, which are: the voltage and current frequencies in the output filter are three times the switching frequency, input current ripple reduction, high frequency isolation, moreover, when the converter works within duty ratio up to 1/3, it makes it possible to precharge the output capacitor, reducing the start-up converter' currents. A theoretical analysis of the operating stages and the experimental results are presented to a prototype operating as a Flyback-Boost with switching frequency of 20 kHz, input voltage from 24 V to 120 V, output voltage from 52 V to 450 V and output power from 650 W to 2025 W.

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Three-Phase Weinberg Isolated DC–DC Converter: Analysis, Design, and Experimentation

Cited by 20 publications

References 22 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

High frequency inverter topologies integrated with the coupled inductor bridge arm

Three-phase Flyback-Boost DC-DC converter with three-phase high frequency isolation

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