飞机电源系统转电问题研究

Research on Conversion of the Aircraft Power Supply System

飞机供电在地面电源起动后,由地面电源向机上电源转电过程中,转电时间过长会造成机载设备断电等故障。经分析,转换接触器是影响供电时间的关键设备。通过试验验证,接触器线圈控制电压是影响接触器动作时间的关键参数,控制接触器的线圈电压就可以实现对转电时间的控制。

In the process of aircraft power supply switching from the ground power supply to the power supply on the machine after the ground power is started,the over time will cause the failure of airborne equipment. Through analysis,the switch contactor is the key equipment to influence the power supply time. The test results show that the control voltage of contactor coil is the key parameter affecting the operation time of the contactor,so the control of the switching time can be realized by controlling the coil voltage of contactor.