Conference paper
Wide Input Range Power Converters Using a Variable Turns Ratio Transformer
A new integrated transformer with variable turns ratio is proposed to enable dc-dc converters operating over a wide input voltage range. The integrated transformer employs a new geometry of magnetic core with “four legs”, two primary windings with orthogonal arrangement, and “8” shape connection of diagonal secondary windings, in order to make the transformer turns ratio adjustable by controlling the phase between the two current excitations subjected to the two primary windings.
Full-bridge boost dc-dc converter is employed with the proposed transformer to demonstrate the feasibility of the variable turns ratio. 1-kW experimental prototype targeting to the PV standalone system has been built to well demonstrate a wide input voltage operation with high efficiencies.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2016 |
| Pages: | 2473-2478 |
| Proceedings: | 2016 IEEE Applied Power Electronics Conference and Exposition |
| ISBN: | 1467383937 , 1467395501 , 146739551X , 146739551x , 9781467383936 , 9781467395502 , 9781467395519 , 1467383945 and 9781467383943 |
| Types: | Conference paper |
| DOI: | 10.1109/APEC.2016.7468212 |
| ORCIDs: | Ouyang, Ziwei and Andersen, Michael A. E. |
DC-DC power converters DC-DC power convertors Inductors Legged locomotion Magnetic flux PV standalone system Transformer cores Windings current excitations dc-dc converters diagonal secondary windings full-bridge boost dc-dc converter integrated transformer magnetic core power 1 kW power transformers primary windings shape connection transformer windings variable turns ratio variable turns ratio transformer wide input range power converters wide input voltage
