The invention relates to the technical field of power distribution network optimization, in particular to a dynamic optimization method and
system for a power distribution network, and the method comprises the steps: collecting the operation data of each node of the power distribution network in real time through an intelligent electric meter; carrying out load flow calculation according to the node
power balance equation set to obtain a
branch power flow diagram; marking the
branch with the active power exceeding the power threshold as a power abnormal
branch; constructing a power distribution network
resource network topology model; optimizing
interconnection switch states of the candidate connection branches by adopting a
genetic algorithm, and generating opening and closing combination configuration of
interconnection switches; and the
simulation load flow calculation is executed again, and if the stability condition is met, opening and closing combination configuration is executed. By introducing real-time load flow calculation, an abnormal path can be quickly identified when the power is abnormal. According to the method, a
genetic algorithm is utilized, and an initial
population design based on weighted sorting is combined, so that an optimal opening and closing combination with low
power loss and low switching cost is realized, and dynamic and accurate state evaluation and optimization decision are realized.