Paper Info
Title
Comparison of Modulations and Dc-Link Balance Control Strategies for a Multibattery Charger System Based on a Three-Level Dual-Active-Bridge Power Converter
Abstract
This paper focuses on the study of a charger for two batteries connected in series. From the three-phase grid, the batteries are charged through a three-level neutral-point-clamped (NPC) ac-dc converter in cascade with a three-level NPC dual-active-bridge converter. The system provides galvanic isolation and allows bidirectional power flow. A simple control strategy to charge the batteries is considered, based on the regulation of the common- and differential-mode components of the batteries charging currents. In addition, the proposed control system regulates the total dc-link voltage and the dc-link voltage balance in the two systems dc-links. This work is particularly focused on the comparison of the charger performance under two competitive ac-dc converter modulations, in terms of the ac-side voltage harmonic content, the number of switching transitions, the dc-link voltage balance, and the charging current control capacity. Simulation results with the performance comparison are provided and the merits and demerits of each option are highlighted.
Year
DOI
Venue
2022
10.1109/ISIE51582.2022.9831539
2022 IEEE 31st International Symposium on Industrial Electronics (ISIE)
Keywords
DocType
ISSN
Battery charger,capacitor voltage balance,dual-active-bridge,multilevel converter,nearest-three space-vector modulation,neutral point clamped,virtual vector pulse-width modulation
Conference
2163-5137
ISBN
Citations 
PageRank 
978-1-6654-8241-7
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
José M. Campos-Salazar100.34
Sergio Busquets-Monge213220.49
Alber Filbà-Martínez300.34
Salvador Alepuz413318.11