High power load loading equipment emergency power supply control system and control method thereof

The invention belongs to the technology of airborne equipment power supply and in particular relates to a high power load loading equipment emergency power supply control system and control method. The high power load loading equipment emergency power supply control system comprises an emergency power supply power source fuse, an emergency power supply connecting ting circuit breaker, a normal power supply cut-off circuit breaker, a normal power supply power source fuse, an emergency power supply connecting relay, a normal power supply cut-off relay and a power supply mode selection switch. When a power supply mode selection switch is at a connecting position, a control circuit of the emergency power supply connecting relay is connected, the relay acts, and an emergency power supply circuit of high power loading equipment is connected; meanwhile, a control coil of the normal power supply cut-off relay is connected, the relay acts, a normal power supply circuit of the high power loading equipment is disconnected to avoid power flee. The high power load loading equipment emergency power supply control system and method achieves separation of the emergency power supply circuit and the normal power supply circuit, reduces the fault rate and increases the system safety.