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A low-cost, high-power-density DC-DC converter for hybrid and electric vehicle applications
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| Author(s) |
Md Rishad AHMED |
| Abstract |
A 400 V to 12 V soft-switching DC-DC converter is designed to supply power to the low-voltage system of the hybrid and electric vehicle from the high-voltage battery. The use of soft-switching topology, SiC MOSFET and an optimised design of the transformer and filter inductors enables a low profile layout for the converter. Optimised layouts of the components increased its volumetric and specific power density over the commercial state-of-the-arts and ensured a simple construction process. The 3.5 kW converter achieved a volumetric power density of 2 kW / litre and a specific power density of 1.2 kW / kg. The prototype converter operated at 3.6 kW, 150 kHz, 425 - 13 V and achieved 87\% efficiency. Experimental results from 100 W to 3.6 kW operations verified the superiority of the soft-switching topology over hard-switching operations. |
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| Filename: | 0230-epe2019-full-13150773.pdf |
| Filesize: | 960.9 KB |
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| Type |
Members Only |
| Date |
Last modified 2020-08-14 by System |
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