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Wide Range ZVS Operation of Dual Active Bridge DC-DC Converters using Adaptive Modulation and Low Coupling Factor Transformers
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| Author(s) |
Jan RIEDEL |
| Abstract |
One of the central requirements of a Dual Active Bridge (DAB) converter is to operate under ZeroVoltage Switching (ZVS) conditions, to reduce switching losses and increase operating efficiency. Thispaper shows how frequency domain analysis can be used to design and operate a DAB to ensure ZVSacross the entire operating range by using transformers with a reduced winding coupling factor andadaptive 3-level bridge modulation, while also including second order effects. The approach is shown toachieve experimentally measured efficiencies between 96.5\% and 98.5\% over the entire power range foran optimised DAB converter stage (>1 kW). |
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| Filename: | 0318-epe2016-full-12354572.pdf |
| Filesize: | 2.994 MB |
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| Type |
Members Only |
| Date |
Last modified 2017-04-13 by System |
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