摘要
提出了一种新颖的适用于航空变频电源(360～800Hz)的交交变换器。它由双升压式整流器和双降压式逆变器直接连接构成,继承了它们无桥臂直通隐患、无体二极管反向恢复的优点,同时具有可靠性高和效率高优点。简要介绍了该变换器工作原理,提出了直流母线电压的选取原则以及如何优化设计中间环节滤波电容,仿真和实验验证了理论分析的正确性。
A novel dual Boost/dual Buck AC - AC converter which is very suitable for the variable frequency ac source of airplane （360 - 800Hz） is proposed. It is constructed by directly connection of a dual Boost rectifier and a dual Buck inverter which inherit the merits of high reliability and efficiency of them for no hidden danger of shoot - through and no freewheeling current flows through the body diodes of power switches. The operational principle is briefly intro-duced first, and then the principle of choosing DC bus voltage and capacitors are proposed. Simulation and experi-ments verify the validity of the presented circuit.
出处
《电测与仪表》
北大核心
2012年第11期97-100,共4页
Electrical Measurement & Instrumentation
基金
宿迁学院科研基金项目(2012ky20)
关键词
母线电压选取
双升压
双降压
滤波器设计
变频
variable frequency, AC -AC converter, dual Boost/dual Buck, filter designing
