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An isolated bidirectional half-bridge active-clamp current-fed push-pull DC-DC converter for DC microgrid applications
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| Author(s) |
Matthias SCHULZ |
| Abstract |
This paper describes an isolated bidirectional half-bridge active-clamp current-fed push-pull DC/DC converter developed for a DC microgrid. A novel modulation scheme is introduced for step-down operation, which decreases the switching losses mainly on the higher voltage side of the converter. Also, the effect on step-up operation mode is analyzed in detail. A prototype of the converter is built with a nominal output power of 600 W exhibiting a peak efficiency of 96.8\% in step-down operation. Measurements show a good agreement with the simulated key waveforms. The topology has also a highly efficient step-up operation mode with a peak effi-ciency of 96.2\%. |
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| Filename: | 0001-epe2019-full-16214640.pdf |
| Filesize: | 1.087 MB |
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| Type |
Members Only |
| Date |
Last modified 2020-08-14 by System |
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