The bidirectional switch-based current source converter (BDS-CSC) has broad application prospects for high-frequency bidirectional operation (rectification/inversion), which meets the requirements for reliable, efficient, and high-power-density three-phase AC-DC converter in systems such as electrified transportation and energy storage systems. High-quality operation of the BDS-CSC relies on reliable and efficient commutation and control, both of which require AC side phase voltage information. Based on this analysis, the relationship among active current vectors, the DC-link voltage and the phase voltage are firstly analyzed. a phase voltage reconstruction method is proposed that utilizes vector decomposition characteristics. Then, to suppress the effect of blind zone caused by low modulation ratio and sector boundary regions, a complementary vector strategy based on vector injection is further proposed to achieve high-quality-reconstruction. Finally, the effectiveness of the proposed method is validated on a 3 kW current source inverter.
| 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 |