系留气球不间断供电技术研究

Research on uninterrupted power supply technology for tethered balloon

供电系统是系留气球的重要组成部分,其正常运行是保证系留气球安全可靠的关键,一些特殊载荷需要不间断供电,即当主供电出现问题时,需要无缝切换到备用电源以实现系统和载荷正常运行。常用主备电切换方式动作缓慢,耗时较长,并且电路复杂可靠性低,结合系留气球供电系统的特点,提出一种简单易实现的不间断供电方式,即在电磁继电器基础上,在备用电源支路上再连接一组开关管并配合小容量电容,当系统检测到电压异常后,开关管在几微秒内快速切换到备用电源,电磁继电器在开关管接通一段时间后也会切换到备份电池,此时备份电池通过两条通路供电给母线,不仅球载电子设备可以稳定工作,而且可靠性大大增加。经过仿真和相关实验,证明这种供电结构实现了不间断供电,并且具有较高的可靠性。

Power supply system is an important part of tethered balloon,its normal operation is the key to ensure tethered balloon safety and reliability. Some special loading needs uninterrupted power supply. When the main power supply is malfunction,the emergency power is switched to supply system in seamless to achieve system and loading normal operation. The switching modes of common main power supply have the disadvantage of slow motion,long time consuming,complex circuit and low reliability.In combination with the features of tethered balloon power supply system,a simple and easy to implement uninterrupted power supply method is presented. By using this method,the balloon borne-electronic equipment can work stably,and the reliability is enhanced greatly. Simulation and related experiments prove that this power supply structure can realize uninterrupted power supply,and has higher reliability.