Full
Outline
Bidirectional DC-DC converters are widely applied in the fields such as distributed generation systems, converter development and testing, and electric vehicles. Owing to their advantages including a wide gain, a high efficiency, and input and output isolation, bidirectional LLC resonant converters are widely used in DC bidirectional DC-DC converters. Based on the topology of a three-phase bidirectional LLC resonant converter, a loss model is established, and the efficiency characteristics of the converter are analyzed in depth. Meanwhile, with the consideration of the efficiency and gain indexes of the converter, a resonant parameter design method for optimizing the efficiency characteristics is proposed. A prototype of a 100 kW three-phase bidirectional LLC resonant converter was built, and the effectiveness and feasibility of the proposed method were verified by experimental results.
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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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