Design and Optimization of an Efficient (96.1%) and Compact (2 kW/dm3) Bidirectional Isolated Single-Phase Dual Active Bridge AC-DC Converter
The growing attention on plug-in electric vehicles, and the associated high-performance demands, have initiated a development trend towards highly efficient and compact on-board battery chargers. These isolated ac-dc converters are most commonly realized using two conversion stages, combining a non-i...
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-10-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/9/10/799 |
| _version_ | 1798041699436462080 |
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| author | Jordi Everts |
| author_facet | Jordi Everts |
| author_sort | Jordi Everts |
| collection | DOAJ |
| description | The growing attention on plug-in electric vehicles, and the associated high-performance demands, have initiated a development trend towards highly efficient and compact on-board battery chargers. These isolated ac-dc converters are most commonly realized using two conversion stages, combining a non-isolated power factor correction (PFC) rectifier with an isolated dc-dc converter.This, however, involves two loss stages and a relatively high component count, limiting the achievable efficiency and power density and resulting in high costs. In this paper, a single-stage converter approach is analyzed to realize a single-phase ac-dc converter, combining all functionalities into one conversion stage and thus enabling a cost-effective efficiency and power density increase. The converter topology consists of a quasi-lossless synchronous rectifier followed by an isolated dual active bridge (DAB) dc-dc converter, putting a small filter capacitor in between. To show the performance potential of this bidirectional, isolated ac-dc converter, a comprehensive design procedure and multi-objective optimization with respect to efficiency and power density is presented, using detailed loss and volume models. The models and procedures are verified by a 3.7kW hardware demonstrator, interfacing a 400Vdc-bus with the single-phase 230V,50Hz utility grid. Measurement results indicate a state-of-the-art efficiency of 96.1% and power density of 2 kW/dm3, confirming the competitiveness of the investigated single-stage DAB ac-dc converter. |
| first_indexed | 2024-04-11T22:25:11Z |
| format | Article |
| id | doaj.art-fcd924c151e244e7ba8e7c35750bf677 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:25:11Z |
| publishDate | 2016-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-fcd924c151e244e7ba8e7c35750bf6772022-12-22T03:59:49ZengMDPI AGEnergies1996-10732016-10-0191079910.3390/en9100799en9100799Design and Optimization of an Efficient (96.1%) and Compact (2 kW/dm3) Bidirectional Isolated Single-Phase Dual Active Bridge AC-DC ConverterJordi Everts0Department of Electrical Engineering, Electromechanics and Power Electronics (EPE) Group, Eindhoven University of Technology (TU/e), Postbox 513, 5600 MB Eindhoven, The NetherlandsThe growing attention on plug-in electric vehicles, and the associated high-performance demands, have initiated a development trend towards highly efficient and compact on-board battery chargers. These isolated ac-dc converters are most commonly realized using two conversion stages, combining a non-isolated power factor correction (PFC) rectifier with an isolated dc-dc converter.This, however, involves two loss stages and a relatively high component count, limiting the achievable efficiency and power density and resulting in high costs. In this paper, a single-stage converter approach is analyzed to realize a single-phase ac-dc converter, combining all functionalities into one conversion stage and thus enabling a cost-effective efficiency and power density increase. The converter topology consists of a quasi-lossless synchronous rectifier followed by an isolated dual active bridge (DAB) dc-dc converter, putting a small filter capacitor in between. To show the performance potential of this bidirectional, isolated ac-dc converter, a comprehensive design procedure and multi-objective optimization with respect to efficiency and power density is presented, using detailed loss and volume models. The models and procedures are verified by a 3.7kW hardware demonstrator, interfacing a 400Vdc-bus with the single-phase 230V,50Hz utility grid. Measurement results indicate a state-of-the-art efficiency of 96.1% and power density of 2 kW/dm3, confirming the competitiveness of the investigated single-stage DAB ac-dc converter.http://www.mdpi.com/1996-1073/9/10/799ac-dc power convertersbattery chargersdual active bridgeDABoptimal designpower metal oxide semiconductor field effect transistors (MOSFETs)single-stage |
| spellingShingle | Jordi Everts Design and Optimization of an Efficient (96.1%) and Compact (2 kW/dm3) Bidirectional Isolated Single-Phase Dual Active Bridge AC-DC Converter Energies ac-dc power converters battery chargers dual active bridge DAB optimal design power metal oxide semiconductor field effect transistors (MOSFETs) single-stage |
| title | Design and Optimization of an Efficient (96.1%) and Compact (2 kW/dm3) Bidirectional Isolated Single-Phase Dual Active Bridge AC-DC Converter |
| title_full | Design and Optimization of an Efficient (96.1%) and Compact (2 kW/dm3) Bidirectional Isolated Single-Phase Dual Active Bridge AC-DC Converter |
| title_fullStr | Design and Optimization of an Efficient (96.1%) and Compact (2 kW/dm3) Bidirectional Isolated Single-Phase Dual Active Bridge AC-DC Converter |
| title_full_unstemmed | Design and Optimization of an Efficient (96.1%) and Compact (2 kW/dm3) Bidirectional Isolated Single-Phase Dual Active Bridge AC-DC Converter |
| title_short | Design and Optimization of an Efficient (96.1%) and Compact (2 kW/dm3) Bidirectional Isolated Single-Phase Dual Active Bridge AC-DC Converter |
| title_sort | design and optimization of an efficient 96 1 and compact 2 kw dm3 bidirectional isolated single phase dual active bridge ac dc converter |
| topic | ac-dc power converters battery chargers dual active bridge DAB optimal design power metal oxide semiconductor field effect transistors (MOSFETs) single-stage |
| url | http://www.mdpi.com/1996-1073/9/10/799 |
| work_keys_str_mv | AT jordieverts designandoptimizationofanefficient961andcompact2kwdm3bidirectionalisolatedsinglephasedualactivebridgeacdcconverter |