Dual Active Bridge-Based Battery Charger for Plug-in Hybrid Electric Vehicle With Charging Current Containing Low Frequency Ripple
By Lingxiao Xue, Zhiyu Shen, Dushan Boroyevich, Paolo Mattavelli, D. Diaz. IEEE transactions on power electronics, 2013
304 citations recorded by the source corpus.
Manufacturers want high power density for the on-board battery chargers of plug-in hybrid electric vehicles. Wide bandgap devices can be used to shrink other passive components by increasing the switching frequency, but the bulk dc link capacitor of the ac-dc power factor correction stage, becomes one of the major barriers to higher power density, because its volume depends on the ripple power at the double line frequency in a dc current charging system. However, if this double line frequency ripple flows into the battery, the dc link capacitance can be significantly reduced. This charging scheme, named as sinusoidal charging in this paper, is analyzed and implemented based on a two-stage battery charging system, which is comprised of one full bridge ac-dc stage and one dual active bridge dc-dc stage. We further find that converter loss causes ripple power imbalance and bigger dc link capacitance. Therefore, the impact of converter loss on the ripple power balance is analyzed, and a feedback control on the dc link voltage ripple is proposed based on this analysis in order to further reduce the dc link capacitance. The effectiveness of the proposed solutions is verified in both Si-based and GaN-based charging systems.
Subfields: Automotive Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/412f6a2b8bdb3ab3b9ac686ee21099fb56484578
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Citations in the corpus
- A Comprehensive Review of Power Converter Topologies and Control Methods for Electric Vehicle Fast Charging Applications (2022, background): “To address this issue, the concept of sinusoidal charging which allows power ripple at two times the line frequency to the EV battery is utilized so that ripple power stored in the dc link capacitor can be reduced [214].”
- A High-Efficiency High-Density Wide-Bandgap Device-Based Bidirectional On-Board Charger (2018, background): “However, in applications like battery chargers, this concept has the problem of a very large output current ripple [24].”