Power distribution terminal double-backup power supply management system and management method thereof

The invention discloses a power distribution terminal double-backup power supply management system and a management method thereof. According to the method, an existing single backup power supply is improved, and fine distribution and management of a power supply and storage integrated power supply are achieved. The improved power distribution terminal adopts double backup power supplies, so that when an external power supply and a main backup power supply of the power distribution terminal fail at the same time, the auxiliary backup power supply can also ensure switch-on and switch-off of a switch. According to the method, a back-up power supply switching module is added between the double back-up power supplies and a charging and discharging loop, charging and discharging management of the double back-up power supplies under one charging loop is flexibly achieved, the functions of floating charge prevention, over-discharge prevention, flexible switching of the double back-up power supplies and the like are