2026-09-19T06:28:39Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/858052026-06-06T00:48:35Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
David J. Perreault.
Yogeswaran, Kesavan
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2014-03-19T15:46:34Z
2014-03-19T15:46:34Z
2012
2012
http://hdl.handle.net/1721.1/85805
872113102
Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2012.
Title as it appears in MIT degrees awarded program, September 19, 2012: A new topology for high-efficiency solar microinverters Cataloged from PDF version of thesis.
Includes bibliographical references (pages 95-96).
Previous work has been done to develop a microinverter for solar photovoltaic applications consisting of a high-frequency series resonant inverter and transformer section connected to a a cycloconverter that modulates the resonant current into a single-phase 240 VRMS utility line. This thesis presents a new stacked full-bridge topology that improves upon the previous high-frequency inverter section. By utilizing new operating modes to reduce the reliance on frequency control and allowing for the use of lower blocking voltage transistors, the operating frequency range of the HF inverter is reduced and efficiency is increased, especially at low output powers and lower portions of the line cycle. The design of an experimental prototype to test the stacked full-bridge HF inverter topology is presented along with test results that demonstrate the success of the topology. Future improvements to increase performance are also suggested.
by Kesavan Yogeswaran.
M.Eng.
96 pages
eng
Massachusetts Institute of Technology
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
Electrical Engineering and Computer Science.
A stacked full-bridge microinverter topology for photovoltaic applications
New topology for high-efficiency solar microinverters
Thesis
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Publication
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<Abstract>Previous work has been done to develop a microinverter for solar photovoltaic applications consisting of a high-frequency series resonant inverter and transformer section connected to a a cycloconverter that modulates the resonant current into a single-phase 240 VRMS utility line. This thesis presents a new stacked full-bridge topology that improves upon the previous high-frequency inverter section. By utilizing new operating modes to reduce the reliance on frequency control and allowing for the use of lower blocking voltage transistors, the operating frequency range of the HF inverter is reduced and efficiency is increased, especially at low output powers and lower portions of the line cycle. The design of an experimental prototype to test the stacked full-bridge HF inverter topology is presented along with test results that demonstrate the success of the topology. Future improvements to increase performance are also suggested.</Abstract>
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