Microgrid communication topology design method based on network mirror image and global propagation rate

The invention relates to a microgrid distributed communication topology design method based on a network mirror image and a global propagation rate. The method comprises the following steps: firstly,judging the communication connectivity of a microgrid distributed directed network; for the connected directed communication network, obtaining a mirror image network based on a mirror image operation, and selecting an optimal distributed directed communication topology corresponding to the maximum performance index based on algebraic connectivity and communication cost; for the optimized distributed communication topology, solving a containment distributed power supply set corresponding to different containment numbers based on a global propagation rate and the out-degree; finally, based on the optimal distributed communication network and the containment point of the microgrid, establishing the microgrid distributed secondary voltage control, and achieving reactive power equalization andaverage voltage recovery.