Multi-microgrid hierarchical economic dispatching method and system considering lightning stroke fault

The invention discloses a multi-microgrid hierarchical economic dispatching method and system considering a lightning stroke fault, and the method comprises the steps: comprehensively evaluating the load importance degree from the safety and economy based on a load importance index, and constructing a load outage loss model; based on the load blackout loss model, considering the load blackout loss cost and the distributed power generation cost, and constructing a multi-microgrid intra-grid scheduling model; constructing a multi-microgrid inter-network scheduling model by considering the load outage loss cost and the microgrid power generation cost; constructing a multi-micro-grid layered economic dispatching model considering the lightning stroke fault, wherein the multi-micro-grid layered economic dispatching model comprises a multi-micro-grid layer, a multi-micro-grid intra-grid dispatching layer and a multi-micro-grid inter-grid dispatching layer; and multi-microgrid layered economic dispatching under the