Full
Outline
A soft-switching high step-up converter based on switched-coupled-inductor is proposed to improve its voltage gain and efficiency for the applications of fuel cell. The switched-coupled-inductor and switched capacitor are utilized to achieve a high voltage gain under an appropriate duty cycle, and an active clamp circuit is used to reduce the voltage stress of power switches and recycle the energy of leakage inductor. All the power switches achieve zero voltage switching. In addition, the number of components is less, the power loss is reduced, and the efficiency and power density are improved. The operation principle and steady-state analysis are also introduced in detail. Finally, a 250 W experimental prototype was fabricated to verify the performance. Results show that the measured maximum and full-load efficiencies were 97.4% and 96.1%, respectively.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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