Current ripple comparison of multi and single phase Buck-boost converters

Beres, Matej; Schweiner, David; Kovacova, Irena; Kalinov, Andrii

doi:10.1109/mees.2017.8248905

Cited by 24 publications

(13 citation statements)

References 2 publications

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“…r DS(on) denotes the resistance of the MOSFET transistor when it is in the "on" state, while R Ln and L n represent the resistance and inductance of the primary inductor. V F signifies the voltage drop across a diode, R Pn2 is the resistance of the output conductor connected to the load, and V Z represents the load voltage [19,[23][24][25][28][29][30][31].…”

Section: Analysis Of Energy Accumulation In the Initial Time Periodmentioning

confidence: 99%

“…This insight paves the way to pinpoint the ideal number of branches for certain input power levels (keeping input voltage and chosen duty cycle constant). Such an understanding permits tweaks in the converter's design to optimize efficiency across different power inputs while retaining core design components and their characteristics [30][31][32].…”

Section: Calculation Of the Total Power Lossmentioning

confidence: 99%

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Efficiency Optimization in Multi-Branch Converters through Dynamic Control

Pavlík,

Bereš,

Kováč

et al. 2023

Sustainability

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As the global emphasis on solar energy intensifies, optimizing the efficiency of photovoltaic panels becomes crucial in meeting energy demands sustainably. Addressing this, our research delves deeply into advancing maximum power point tracking (MPPT), a pivotal component in perfecting the energy conversion process. Leveraging state-of-the-art mathematical modeling, in-depth simulations, and comprehensive experimental validation, we set out to markedly refine the performance of non-isolated multi-branch buck DC–DC converters. In this pursuit, we introduce an innovative algorithm meticulously designed to adjust the number of active branches. This adjustment is rooted in robust efficiency metrics, ensuring optimal power delivery even under dynamic and fluctuating conditions. We place a distinct emphasis on the transformative role of current in determining converter efficiency. Drawing from our findings, we advocate for an adaptive control strategy, precisely engineered to thrive in a spectrum of operational contexts. With this study, we not only present pivotal contributions to the domain of photovoltaic technology but also chart out clear expectations for future endeavors. Our hope is that these advancements serve as foundational steps, guiding the evolution of sustainable energy generation.

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Section: Analysis Of Energy Accumulation In the Initial Time Periodmentioning

confidence: 99%

Section: Calculation Of the Total Power Lossmentioning

confidence: 99%

Efficiency Optimization in Multi-Branch Converters through Dynamic Control

Pavlík,

Bereš,

Kováč

et al. 2023

Sustainability

View full text Add to dashboard Cite

show abstract

“…There are studies looking for other topologies with higher efficiency by using zero current switching (ZCS) and zero voltage switching (ZVS) as well as control methods of systems (Alonso et al, 2011;Fernão Pires et al, 2018). Such systems can be one-way or two-way and multi-phase, as in Bereš et al (2017). The availability of multiple phases makes it possible to reduce passive elements and output voltage fluctuations (Bereš et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Such systems can be one-way or two-way and multi-phase, as in Bereš et al (2017). The availability of multiple phases makes it possible to reduce passive elements and output voltage fluctuations (Bereš et al, 2017). Systems for targeted applications allow, for example, to reduce the number of power switches and optimise the entire device (Alonso et al, 2011;Fernão Pires et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

An Analysis of a Transformerless Dual Active Half-Bridge Converter

Sosnowski

Chojowski

Baszyński

2022

Power Electronics and Drives

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This paper proposes a transformerless dual half-bridge converter (TLDAHB). By eliminating the transformer and harnessing the possibility of using a low inductor value, it is possible to minimise the size of the converter. A phase-shift pulse width modulation will result in a wide controlled voltage gain of the converter and operation as buck and boost. The theoretical topology analysis, simulation, and experimental results are presented. Theoretical analysis consists of analysis of power transfer and design. In case of experimental research, particular attention was paid to power transfer and efficiency analysis. Near zero switching transient of voltage in the half-bridge topology results with high efficiency.

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“…Introduction: A multi-phase buck converter provides many advantages in comparison with the single-phase version. In the first place, the ripple of the output current of such a converter is much lower at the same switching frequency [1,2]. There is not only a narrower area of discontinuous current operation but also a higher efficiency of energy conversion of input energy to output because there is no time period of its activity, in which energy only accumulates in the converter, but it does not transfer to output.…”

mentioning

confidence: 99%