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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Zhu, L. |
| Copyright Year | 1986 |
| Description | A soft-commutating method and control scheme for an isolated boost full bridge converter is proposed in this paper to implement dual operation of the well-known soft-switching full bridge dc/dc buck converter for bidirectional high power applications. It provides a unique commutation logic to minimize a mismatch between current in the current-fed inductor and current in the leakage inductance of the transformer when commutation takes place, significantly reducing the power rating for a voltage clamping snubber and enabling use of a simple passive clamped snubber. To minimize the mismatch, the method and control scheme utilizes the resonant tank and freewheeling path in the existing full bridge inverter at the voltage-fed side to preset the current in the leakage inductance of the transformer in a resonant manner. Zero-voltage-switching is also achieved for all the switches at the voltage-fed side inverter in boost mode operation. The proposed soft-commutating method is verified through boost mode operation of a 3-kW bidirectional isolated full bridge dc/dc converter developed for fuel cell electric vehicle applications. The tested result verified the isolated boost converter can operate at an input voltage of 8.5–15V and an output voltage of 250–420V with a peak efficiency of 93% and an average efficiency of 88% at 55-kHz switching frequency with 72 |
| Sponsorship | IEEE Power Electronics Society |
| Starting Page | 422 |
| Ending Page | 429 |
| Page Count | 8 |
| File Size | 464534 |
| File Format | |
| ISSN | 08858993 |
| Volume Number | 21 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Bridge circuits Inductance Snubbers Resonance Inverters Voltage Buck converters Logic Inductors Clamps soft-switching Automotive dc/dc converter bidirectional dc/dc converter full bridge isolated boost converter soft-commutating |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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