一种可并联的1．5～5kHz双三相中频电源设计

The Design of One Dual Three-phase Medium Frequency Inverter Power

无人机大量采用热台方式即发动机直接带交流发电机作为电源系统的主电源。由于无恒速传动装置，其输出频率在1．5—5kHz。输出形式主要有两种：三相高电压和双三相低电压。由于无人机发电机转速高，用热台方式进行地面电网络试验，一次性投入和使用维护成本很高。设计了一种可并联的1．5～5kHz双三相中频电源，极大地降低了成本，已应用到无人机的电网络的试验、维护中，从反应情况来看效果十分好。

unmanned aerial vehicle used electrical machine as the main power of the power system. The speed is not stable, the ouput frequency is from 1.5 kHz -5 kHz. The output form has two species：three-phase high volt- age and dual three-phase low voltage. The speed of the electrical machine is very high, so the use of cost is very high. So the design of the parallel medium frequency power reduces the cost. It has used in the test of the power system. The effect is very good.