Rail transit self-consistent energy system risk assessment method considering access of optical storage system

The invention discloses a rail transit self-consistent energy system risk assessment method considering the access of an optical storage system, and the method comprises the following steps: constructing an equipment fault grade table, and determining the fault grade of the optical storage system through analyzing the influence caused by the access of the optical storage system to a traction power supply system, then obtaining a fault consequence grade vector of each device containing the optical storage system through an electrical main wiring diagram and a fault mode analysis table, constructing a device fault probability grade table by adopting a device failure rate, and obtaining a fault probability grade vector of the device through historical data of each type of device; and finally, multiplying the fault consequence level vector by the fault probability level vector to obtain an equipment fault matrix, and carrying out risk rating on the equipment fault by virtue of the equipment fault matrix, includin