Bidirectional AC to DC Isolated Multi-Cell Converter

Phung, Thanh Hai; Nguyen, S.T.; Lamorelle, Théo; Kerachev, Lyubomir; Andreta, André; Lembeye, Yves; Crébier, Jean-Christophe

doi:10.23919/epe.2019.8915568

Cited by 2 publications

(3 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Regarding other important design issues, efficiency is a key point. This has been already investigated in another publication [10] for the case investigated in the present paper of the PCA converter with three CSCs. Please refer to this paper [10] for more information related to efficiency of PCA converters.…”

Section: Analysis and Commentsmentioning

confidence: 92%

See 1 more Smart Citation

DC-AC Isolated Power Converter Array. Focus on Differential Mode Conducted EMI

et al. 2019

Self Cite

View full text Add to dashboard Cite

This paper introduces the implementation of a DC–AC step up isolated converter from associations of bidirectional Conversion Standard Cells (CSCs). The designed multi-cell converter is an array of standardized converter cells. It is described and then compared to a reference converter with respect to differential mode conducted electro-magnetic interference (EMI). The paper outlines the motivation for developing a generic multi-cell approach before underlining the benefits from the point of view of conducted EMI when implementing power converter arrays (PCAs). In particular, it is shown that in PCAs, the differential mode (DM) EMI filter can advantageously utilize distributed CSCs, making it possible to use very low value AC inductors to filter the AC current ripple. Experimental results are provided to validate the analysis carried out in the paper.

show abstract

Section: Analysis and Commentsmentioning

confidence: 92%

“…In terms of optimization, many aspects are of importance. Some are already addressed in [8,10] and some remain to be investigated. While conducted electro-magnetic interference (EMI) benefits have been already investigated in many multi-cell converter topologies [11], conducted EMI in the specific case of PCA remains to be addressed.…”

Section: Introductionmentioning

confidence: 99%

DC-AC Isolated Power Converter Array. Focus on Differential Mode Conducted EMI

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…It is well known that a key driver to increasing power density is to increase the apparent switching frequencies of power converters. This can be obtained thanks to multicell interleaved converters such as in [7,8]. Or it can be obtained more classically by increasing the switching frequency of the power converter.…”

Section: Introductionmentioning

confidence: 99%

Accurate Efficiency and Power Densities Optimization of Output Inductor of Buck Derived Converters

2022

Self Cite

View full text Add to dashboard Cite

In this article, inductor loss models are developed based on the experimental characterization of off-the-shelf components. The modelling steps and techniques are described and validated. It is shown that the model exhibits fairly good accuracy over a large range of ripple current frequency and magnitude. Then, these models are used, as an illustration, in order to present the possible optimization process of the tradeoff between switching frequency-current ripple magnitude and output inductors value in the case of a Buck-derived converter. This optimization has shown that a large current ripple may lead to minimized losses in some cases. The developed modelling technique aims to represent Joules and iron losses, as well as DC and AC losses of inductors. It is not based on physical behaviour description but on mathematical equations based on a set of experimental characterizations. The modelling technique is not suitable for designing the component itself but is useful for selecting the best component value in the manufacturer’s series of components. Since it remains difficult with the manufacturer datasheet to estimate AC losses accurately with respect to frequency and ripple current magnitude, a specific characterization is carried out to complement the available data.

show abstract

Bidirectional AC to DC Isolated Multi-Cell Converter

Cited by 2 publications

References 13 publications

DC-AC Isolated Power Converter Array. Focus on Differential Mode Conducted EMI

DC-AC Isolated Power Converter Array. Focus on Differential Mode Conducted EMI

Accurate Efficiency and Power Densities Optimization of Output Inductor of Buck Derived Converters

Contact Info

Product

Resources

About