Energy Management Power Converters in Hybrid Electric and Fuel Cell Vehicles
Abstract
Using a bidirectional dc-dc converter along with low-voltage energy storage for the high-voltage dc bus and traction motor drives has been a prominent option for hybrid electric and fuel cell vehicles. This paper will describe the significance of energy management power converters and their circuit topology options for efficiency, size, and cost considerations. Whether isolated or nonisolated, soft switching techniques have been widely used in high-power bidirectional dc-dc converters. Through some design examples, the component selection and circuit design optimization are discussed, and their efficiency evaluation results are also given. Major difficulties of developing a high-power bidirectional dc-dc converter are found in lack of high-power passive components and lack of multiphase dc-dc controllers. More development work needs to be done in these areas
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Half-bridge MMC uses fewer power devices and provides a higher step-up ratio than full-bridge MMC.
“Half-bridge MMC uses fewer power devices and provides a higher step-up ratio at the same time [68]; however, the average device voltage stress is four times that in full-bridge MMC.”
From State of the Art of Solid-State Transformers: Advanced Topologies, Implementation Issues, Recent Progress and Improvements (2020) · cites this paper as [68]
Average device voltage stress in half-bridge MMC is four times that in full-bridge MMC.
“Half-bridge MMC uses fewer power devices and provides a higher step-up ratio at the same time [68]; however, the average device voltage stress is four times that in full-bridge MMC.”
From State of the Art of Solid-State Transformers: Advanced Topologies, Implementation Issues, Recent Progress and Improvements (2020) · cites this paper as [68]
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References 37 · Cited by 318
- Authors
- Lai, J.-S., & Nelson, D. J.
- Affiliations
- Virginia Tech (US)
- ORCID
- Lai, Jih-Sheng
- Venue
- Proceedings of the IEEE
- Published
- 2007-04
- Volume
- 95
- Issue
- 4
- Pages
- 766-777
- ISSN
- 0018-9219 (ISSN-L)
- OpenAlex
- W2125928333
- Cited by
- 318
- References
- 37
- Citations by year
- 2026: 2 · 2025: 9 · 2024: 11 · 2023: 8 · 2022: 17 · 2021: 11 · 2020: 23 · 2019: 16 · 2018: 25 · 2017: 16 · 2016: 17 · 2015: 12 · 2014: 24 · 2013: 27 · 2012: 20
- FWCI
- 19.55
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Proceedings of the IEEE (publishedVersion)
- Funders
- U.S. Department of Energy
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
- Physical Sciences › Engineering › Automotive Engineering › Electric and Hybrid Vehicle Technologies
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
- Keywords
- bidirectional DC-DC converter, hybrid electric vehicles, fuel cell vehicles, energy management, high-voltage DC bus, traction motor drives, soft switching, converter efficiency, circuit topology
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