Full
Outline
An interleaved parallel double-tube forward converter is taken as the research object. First, based on the analysis of its working mode, an expression for the system efficiency is obtained, and the relationship between input voltage and modulation frequency is given. In addition, a system model is built and simulated using the PSIM software. Second, through the analysis of power losses of the transformer and switching tube in the system, an expression for the converter efficiency is established by taking into account the power losses. Third, a frequency adaptive control strategy based on input voltage is proposed, so as to optimize the system efficiency based on the closed-loop control of system voltage. Finally, an experimental platform of an interleaved parallel double-tube forward converter with rated power of 3 kW was set up, and results verified the effectiveness of the theoretical analysis and proposed control strategy.
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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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