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SeriesResonant ThreePortConverter (SRTPC) applies the traditional phase shifting control strategy when the port voltage mismatch which has the problems of large reflow power and small soft switching range, and this paper will propose a reflux power optimization method based on the phaseshifting plus duty cycle (PWM) control strategy. The complex power model of SRTPC is given by fundamental analysis method and phasor method, and the optimal control strategy of the converter when the reactive power is zero is given and the optimal control variable is solved through the analysis of the SRTPC reactive power (reflux power) model under the premise of ensuring the transmission of certain active power. Furthermore, the conditions for realizing soft switching under the optimized control strategy are further analyzed, and the soft switching range under the two control modes is compared. Finally, the Matlab/Simulink simulation results show that compared with the traditional phase shift control strategy, the SRTPC reflow power under the optimized control strategy has a smaller reflux power, a wider soft switching range, and higher efficiency under the condition of port voltage mismatch.
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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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