An Improved Generalized Average Model of DC–DC Dual Active Bridge Converters
Abstract
Improvements are proposed for generalized average models of dual active bridge (DAB) converters. Generalized average modeling involves a tradeoff between accuracy and tractability. To maintain an acceptable level of complexity, existing DAB models are derived using a first harmonic approximation. These models provide accurate small-signal representations, but are limited as large-signal analysis tools due to persistent steady-state error. This study proposes a modeling framework that provides accurate large and small-signal models without significant increases in the overall complexity. The framework describes DAB operation with a triple phase shift modulation, and is easily simplified for single, dual, or extended phase shift modulation schemes. The special case of a single phase shift modulation, which experiences the most significant large-signal error, is given additional consideration. The framework is applied to open and closed-loop operation, and both large- and small-signal models are discussed. Models are validated in simulation and hardware experiments using a small scale DAB prototype.
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The phase-shifted DAB converter is one of the most popular bidirectional DC/DC converters in the OBC market.
“The phase-shifted DAB converter is one of the most popular bidirectional DC/DC converters in the OBC market [117], [118].”
From A Review of Bidirectional On-Board Chargers for Electric Vehicles (2021) · cites this paper as [117]
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A Review of Bidirectional On-Board Chargers for Electric Vehicles
Yuan, J., Dorn-Gomba, L., Callegaro, A. D., Reimers, J., & Emadi, A. (2021) · IEEE Access · doi:10.1109/access.2021.3069448 · Cited by 390 · see citing works
“bidirectional DC/DC converters in the OBC market [117], [118].”
Background
- Authors
- Mueller, J. A., & Kimball, J. W.
- Affiliations
- Missouri University of Science and Technology (US)
- Venue
- IEEE Transactions on Power Electronics
- Published
- 2018-11
- Volume
- 33
- Issue
- 11
- Pages
- 9975-9988
- ISSN
- 0885-8993 (ISSN-L)
- 1941-0107
- OpenAlex
- W2784623484
- Cited by
- 118
- References
- 26
- Citations by year
- 2026: 7 · 2025: 8 · 2024: 14 · 2023: 18 · 2022: 17 · 2021: 17 · 2020: 15 · 2019: 15 · 2018: 7
- FWCI
- 5.17
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- IEEE Transactions on Power Electronics (publishedVersion)
- Funders
- Division of Electrical, Communications and Cyber Systems (1406156)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Wireless Power Transfer Systems
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
- Keywords
- dual active bridge converter, large-signal modeling, small-signal modeling, phase-shift modulation, triple phase shift modulation, steady-state error, closed-loop operation, open-loop operation, DC-DC converter
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