The invention discloses a
renewable energy-containing micro-grid region division and
voltage fluctuation suppression method and device, and the method comprises the steps: constructing an optimization model composed of a micro-grid topology flexible division module, a micro-
grid network construction network type function connection module, and an optimal
power flow operation module, and solving the optimization model to obtain a micro-grid division result; calculating a
voltage fluctuation index through a
microgrid group
voltage fluctuation index module, verifying whether the
voltage fluctuation index meets the requirement of a
voltage fluctuation index constraint module, if the constraint requirement is not met, generating a corresponding linear feasible
cut by using a linear feasible
cut generation
algorithm module, merging the linear feasible
cut into an optimization model, and solving again; a new micro-grid division result is obtained; and running the
renewable energy power distribution network based on the new micro-grid division result, and enabling each node in the
renewable energy power distribution network to obtain
voltage fluctuation so as to improve the
adaptive capacity of the renewable energy power distribution network to renewable energy. The device comprises a processor and a memory. According to the invention, voltage fluctuation caused by output uncertainty of renewable energy sources is reduced, so that the
adaptive capacity of the power distribution network to the renewable energy sources is improved.