Full
Outline
To achieve lightweight and high-efficiency auxiliary power supply systems, a study was conducted on high-voltage and high-power DC-DC conversion power modules tailored for the application scenarios of new energy locomotive auxiliary power supplies. A quasi-two-stage topology was proposed, consisting of an input series output parallel (ISOP) three-level Boost (TL-Boost) and a full-bridge LLC resonant circuit, suitable for high-voltage and high-power applications. The working principle of this topology was detailed, and in response to the issues with traditional proportional integral (PI) control, an active disturbance rejection control (ADRC) method was proposed, addressing the instability of output voltage due to load fluctuations. This ultimately achieved high current sharing and high-stability operation of the auxiliary power supply. A prototype was constructed, comprising two 150 kW TL-Boost+LLC resonant converters, which was validated. The experimental results demonstrated the feasibility and effectiveness of the proposed DC-DC converter and control method, bearing significant engineering implications.
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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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