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Outline
Aimed at the problems in traditional quasi-Y-source inverters such as high busbar voltage peaks and high device voltage stress, the circuit topology of an active clamp-type Y-source three-phase inverter is proposed. By adding power switch tube, capacitor and diode to form a clamping circuit, the voltage gain is improved, the voltage stress of the power device is reduced, and the continuous characteristic of input current is maintained. A third-order harmonic injection boost modulation strategy is adopted to improve the utilization rate of DC-link voltage. The working principle for this inverter is analyzed in detail, and the formulas for its voltage gain and the device voltage stress are deduced. In addition, its performance is compared with those of other inverters, and its advantage is theoretically demonstrated. Finally, a simulation model and an experimental prototype were built for verification, and both the simulation and experimental results verified the feasibility of the proposed inverter.
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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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