The invention discloses a power distribution network multi-disaster
toughness improvement strategy, an evaluation method, a
system, equipment and a medium, and belongs to the technical field of power distribution network
toughness evaluation and
toughness improvement, and the method comprises the steps: obtaining meteorological and
geological disaster data and
power grid structure data, and constructing a multi-disaster
coupling fault probability model; based on the multi-disaster
coupling fault probability model, a comprehensive toughness evaluation index is obtained by combining a power distribution network information entropy index, a graph structure toughness index and a load
recovery rate; carrying out joint representation learning on the topological structure and node operation data of the power distribution network through a graph convolutional network, extracting high-order topological features through multilayer message transmission, and carrying out state integration to obtain a comprehensive power distribution network
state vector; and constructing a soft actor-commentator
reinforcement learning model, and dynamically outputting an optimal
resource scheduling strategy by taking maximization of a comprehensive toughness index as a target. According to the invention, the
restoring force and the operation efficiency of the power distribution network in the face of natural disasters are effectively improved.