双管正激并-串联组合变换器研究与应用

【作者】 石健将； 王慧贞； 严仰光；

【机构】 南京航空航天大学航空电源重点实验室；

【摘要】 本文提出了一种由双管正激变换器作为基本单元组合成的新型变换器,该新型组合变换器保留了双管正激变换器可靠性高、开关管电压应力低的优点,同时克服了其副边二极管电压应力高、有效占空比小、输出电压和电流脉动大等缺点,比较适合于中、高输入电压,且要求输出高压、大电流应用场合。本文对该新颖电路拓扑进行了理论分析和仿真分析,最后采用该组合变换器拓扑研制了应用于某型飞机逆变器前级DC/DC变换器。更多还原

【Abstract】 A novel combining converter configuration is present in this paper. The novel converter not only have merits of high reliability and low voltage press of switching transistors as two-transistor forward converter, but also have merits of low voltage press of second-side diodes and low variation of output current and voltage and so on. It are very suitably applied in areas of middle or high input voltage and high output voltage and current. It is analysed in theory and simulation, and has been successfully applied in DC-DC frond-end of inverter in certain aeroplane.更多还原