Interconnected microgrid double-layer dispatching method considering new energy utilization rate and system economy

Abstract

The present application relates to the interconnected microgrid double-layer scheduling method which takes into account the new energy utilization rate and the system economy, and belongs to the field of microgrid optimization scheduling. The present application obtains the day-ahead operation data of each microgrid in the interconnected microgrid; establishes an upper-layer optimization scheduling model, takes the highest new energy utilization rate as the objective function, and obtains the upper-layer optimization result; transmits the upper-layer optimization result to a lower-layer optimization scheduling model; establishes the lower-layer optimization scheduling model, takes the lowest system operation cost as the objective function, and obtains the scheduling value of the diesel generator set; and outputs the scheduling value of the diesel generator set for guiding the operation scheduling of the interconnected microgrid. The present application processes the two targets of new energy consumption and economic operation by double-layer optimization architecture, which can maximize the utilization of renewable energy such as wind and light, and effectively reduce the system operation cost, and provides an optimization decision scheme which takes into account the double targets for the collaborative scheduling of the interconnected microgrid.

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