Energy interconnection system reliability evaluation method and device based on state coupling matrix

The invention provides an energy interconnection system reliability evaluation method and device based on a state coupling matrix, and relates to the technical field of power system evaluation. The method comprises the steps: constructing an energy interconnection system model, wherein the energy interconnection system model comprises an energy branch set, an energy node set, a user energy demandset, an energy supply user range set, an energy supply transmission branch range set and an energy node supply matrix; establishing an energy interconnection system state coupling matrix, and constructing an energy system state coupling matrix based on the energy interconnection system node branch incidence matrix and the energy interconnection system model; acquiring an energy interconnection system reliability index, and acquiring an energy interconnection system reliability index evaluation result based on the energy system state coupling matrix and the system fault parameter. According tothe invention and the devi