Method and system for optimizing operation of power distribution network under collaborative access of multiple stored energy

The invention provides a power distribution network operation optimization method and system under multi-energy storage collaborative access, and belongs to the field of power distribution network optimization scheduling. The method comprises the following steps: obtaining historical operation data and peak regulation requirements of a power distribution network; the historical operation data of the power distribution network comprises historical load data, line parameters of the power distribution network, node output power, energy storage equipment information and environmental factors; constructing a node model according to the historical operation data of the power distribution network to determine a typical scene; according to the peak regulation requirement, the charging and discharging behavior and capacity of each energy storage device in the power distribution network are determined with the purpose of minimizing the total investment cost of the energy storage devices; and based on the typical scene