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Optimal Modulation for a Fifth-Order Dual-Active-Bridge Resonant Immittance DC–DC Converter.
- Source :
-
IEEE Transactions on Power Electronics . Jan2020, Vol. 35 Issue 1, p70-82. 13p. - Publication Year :
- 2020
-
Abstract
- This paper proposes a fifth-order resonant immittance network based dual-active-bridge (DAB) converter and an optimal modulation method that will ensure high-efficiency operation of the converter under wide-range variations in voltage ratio and output power level. The proposed modulation method is based on the concept of total power loss minimization, where a loss model is developed and an optimization algorithm is formulated to compute the optimal set of internal and external phase shift parameters that will lead to the maximum efficiency for a given set of operating parameters including voltage ratio and output power level. It is found that to maintain high-efficiency operation under wide-range variations in voltage ratio and output power level, the DAB converter is required to switch between different operation modes and neither soft-switching operation nor unity-power-factor operation is able to achieve wide-range high efficiency performance when used alone. The importance of $reconfigurability$ of operation mode for achieving wide-range high efficiency performance is clearly illustrated in this paper. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 08858993
- Volume :
- 35
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Power Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 139293196
- Full Text :
- https://doi.org/10.1109/TPEL.2019.2911233