Full
Outline
A non-isolated multiport DC-DC converter with ultra-high gain is proposed to meet the high gain DC-side conversion requirements of voltage sag control equipment, which integrates two unidirectional input sources, one bidirectional energy storage unit and output load. This converter has three different operating modes depending on the operation of the energy storage unit, and all of them can achieve ultra-high voltage gain. In particular, the converter can still operate reliably when the input of any one of the input sources is zero. In addition, the input current of multiport in the converter is continuous, and the input and output ports are common grounded, which helps to reduce electromagnetic interference in the system. A detailed analysis was performed on the operating principle, steady-state characteristics and performance comparison of the converter, moreover, a 250 W experimental prototype was built to verify the feasibility and effectiveness of the proposed converter.
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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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