Condensed Buck-Boost Switched Capacitor Converter for Efficient Voltage Distribution in Electrified Aircraft
Switched capacitor converters are a category of power electronic converters that harness the significantly improved energy density of capacitors as opposed to that of their conventional, inductor-based counterparts to reap benefits in terms of efficiency, size, and utilization. This work presents th...
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| Format: | Thesis |
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Massachusetts Institute of Technology
2024
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| Online Access: | https://hdl.handle.net/1721.1/157247 |
| _version_ | 1824458247625506816 |
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| author | Aron, Aklilu |
| author2 | Coday, Samantha |
| author_facet | Coday, Samantha Aron, Aklilu |
| author_sort | Aron, Aklilu |
| collection | MIT |
| description | Switched capacitor converters are a category of power electronic converters that harness the significantly improved energy density of capacitors as opposed to that of their conventional, inductor-based counterparts to reap benefits in terms of efficiency, size, and utilization. This work presents the analysis, design, construction, and evaluation of one such converter, inspired by the flying capacitor multilevel topology and referred to as a condensed buck-boost converter. This converter is designed and built for an application as the interface between the battery voltage and DC bus on partially electrified aircraft, where the advantages of its ability to step up/down voltage in an efficient and lightweight fashion can be fully realized. In order to be implemented in hardware for the first time, this work utilize new monolithic, bidirectional GaN FETs, whose reverse voltage blocking capabilities open new possibilities for a converter design that wastes less power and occupies less board area. This converter is compared with others that perform similar functions to showcase the benefits that this topology has to offer. |
| first_indexed | 2025-02-19T04:22:52Z |
| format | Thesis |
| id | mit-1721.1/157247 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2025-02-19T04:22:52Z |
| publishDate | 2024 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1572472024-10-10T03:30:56Z Condensed Buck-Boost Switched Capacitor Converter for Efficient Voltage Distribution in Electrified Aircraft Aron, Aklilu Coday, Samantha Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Switched capacitor converters are a category of power electronic converters that harness the significantly improved energy density of capacitors as opposed to that of their conventional, inductor-based counterparts to reap benefits in terms of efficiency, size, and utilization. This work presents the analysis, design, construction, and evaluation of one such converter, inspired by the flying capacitor multilevel topology and referred to as a condensed buck-boost converter. This converter is designed and built for an application as the interface between the battery voltage and DC bus on partially electrified aircraft, where the advantages of its ability to step up/down voltage in an efficient and lightweight fashion can be fully realized. In order to be implemented in hardware for the first time, this work utilize new monolithic, bidirectional GaN FETs, whose reverse voltage blocking capabilities open new possibilities for a converter design that wastes less power and occupies less board area. This converter is compared with others that perform similar functions to showcase the benefits that this topology has to offer. M.Eng. 2024-10-09T18:31:02Z 2024-10-09T18:31:02Z 2024-09 2024-10-07T14:34:29.574Z Thesis https://hdl.handle.net/1721.1/157247 Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) Copyright retained by author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Massachusetts Institute of Technology |
| spellingShingle | Aron, Aklilu Condensed Buck-Boost Switched Capacitor Converter for Efficient Voltage Distribution in Electrified Aircraft |
| title | Condensed Buck-Boost Switched Capacitor Converter for
Efficient Voltage Distribution in Electrified Aircraft |
| title_full | Condensed Buck-Boost Switched Capacitor Converter for
Efficient Voltage Distribution in Electrified Aircraft |
| title_fullStr | Condensed Buck-Boost Switched Capacitor Converter for
Efficient Voltage Distribution in Electrified Aircraft |
| title_full_unstemmed | Condensed Buck-Boost Switched Capacitor Converter for
Efficient Voltage Distribution in Electrified Aircraft |
| title_short | Condensed Buck-Boost Switched Capacitor Converter for
Efficient Voltage Distribution in Electrified Aircraft |
| title_sort | condensed buck boost switched capacitor converter for efficient voltage distribution in electrified aircraft |
| url | https://hdl.handle.net/1721.1/157247 |
| work_keys_str_mv | AT aronaklilu condensedbuckboostswitchedcapacitorconverterforefficientvoltagedistributioninelectrifiedaircraft |