High frequency power conversion architecture for grid interface
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.
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| Other Authors: | |
| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2016
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| Online Access: | http://hdl.handle.net/1721.1/106083 |
| _version_ | 1811089419149508608 |
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| author | Lim, Seungbum |
| author2 | David J. Perreault. |
| author_facet | David J. Perreault. Lim, Seungbum |
| author_sort | Lim, Seungbum |
| collection | MIT |
| description | Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016. |
| first_indexed | 2024-09-23T14:18:52Z |
| format | Thesis |
| id | mit-1721.1/106083 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T14:18:52Z |
| publishDate | 2016 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1060832019-04-11T05:53:09Z High frequency power conversion architecture for grid interface Lim, Seungbum David J. Perreault. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science. Electrical Engineering and Computer Science. Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016. Cataloged from PDF version of thesis. Includes bibliographical references (pages 145-151). With the present ac-voltage distribution system, ac-dc converters are key components for driving many dc voltage applications from the ac grid voltage. There are a lot of electronic devices that natively operate from the dc voltage including light emitting diodes (LEDs), personal and laptop computers, and smart phones; for all of them there is a drive to increase functionality and to reduce the volume at the same time. The desire for further miniaturization is, however, facing a dominant obstacle strained by the performance requirements on power electronic circuits. In this thesis, a design technique for high-performance ac-dc power converters will be presented. A new grid interface ac-dc conversion architecture and associated circuit implementations are proposed along with novel control methods. This approach simultaneously address design challenges associated with high performance (e.g., high efficiency, high power factor, miniaturization, and high reliability/lifetime) of ac-dc power conversion systems. The proposed architecture is suitable for realizing ac-dc converters that switch in the HF range (3-30 MHz) with relatively low-voltage components and with zero-voltage switching (ZVS) conditions, enabling significant converter size reduction while maintaining high efficiency. Moreover, the proposed approach can achieve reasonably high power factor about 0.9, while dynamically buffering twice-line frequency energy using small capacitors operating with large voltage swings over the ac line voltage cycle. The ac-dc converter design shows that excellent combinations of power density, efficiency, and power factor can be realized with this approach. by Seungbum Lim. Ph. D. 2016-12-22T16:28:18Z 2016-12-22T16:28:18Z 2016 2016 Thesis http://hdl.handle.net/1721.1/106083 965253298 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 151 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Electrical Engineering and Computer Science. Lim, Seungbum High frequency power conversion architecture for grid interface |
| title | High frequency power conversion architecture for grid interface |
| title_full | High frequency power conversion architecture for grid interface |
| title_fullStr | High frequency power conversion architecture for grid interface |
| title_full_unstemmed | High frequency power conversion architecture for grid interface |
| title_short | High frequency power conversion architecture for grid interface |
| title_sort | high frequency power conversion architecture for grid interface |
| topic | Electrical Engineering and Computer Science. |
| url | http://hdl.handle.net/1721.1/106083 |
| work_keys_str_mv | AT limseungbum highfrequencypowerconversionarchitectureforgridinterface |