An Enhanced Generalized Average Modeling of Dual Active Bridge Converters

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Abstrakt

An enhanced generalized average modeling (GAM) method for a dual active bridge (DAB) converter is presented in this paper. Firstly, the conventional lossless model is introduced and it is shown that this model might cause a non-neglectable steady state error. In order to improve the modeling accuracy, a wide range of loss sources are involved in the proposed enhanced GAM model, such as conduction losses and core losses. On this basis, this paper further proves that the 3 rd-order harmonic component of the leakage inductance current should be considered to reduce steady state errors in light load conditions, while others might only consider the 1 st-order harmonic in the existing DAB models. Also, a universal form of the modeling equation to include up to any h th-order harmonic component is derived. Finally, comparative simulation and experimental results are presented to validate the feasibility of the analysis.

OriginalsprogEngelsk
TitelProceedings of 35th Annual IEEE Applied Power Electronics Conference & Exposition (APEC 2020)
Antal sider6
ForlagIEEE Press
Publikationsdatojun. 2020
Sider85-90
Artikelnummer9124001
ISBN (Elektronisk)978-1-7281-4829-8
DOI
StatusUdgivet - jun. 2020
Begivenhed2020 IEEE Applied Power Electronics Conference and Exposition (APEC) - New Orleans, LA, USA
Varighed: 15 mar. 202019 mar. 2020

Konference

Konference2020 IEEE Applied Power Electronics Conference and Exposition (APEC)
LandUSA
ByNew Orleans, LA
Periode15/03/202019/03/2020
NavnI E E E Applied Power Electronics Conference and Exposition. Conference Proceedings
ISSN1048-2334

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