Power distribution network low-voltage regulation equipment optimal configuration method and system based on minimum loss

The invention discloses a power distribution network low-voltage regulation equipment optimal configuration method and system based on minimum loss. The method comprises the following steps: obtaininga voltage disqualification node set of a power distribution network system; and determining the apparent capacity of the voltage regulation equipment configured by a single node with unqualified voltage, simulating the power distribution network again to obtain a node set with unqualified voltage, repeating the process until the voltage of all nodes is qualified, and obtaining the apparent capacity of the voltage regulation equipment configured by each node with unqualified voltage. According to the method, the voltage regulation equipment is configured for the nodes with the unqualified voltages according to the target of minimum loss, and compared with the mode that the equipment is additionally arranged on the nodes with the unqualified voltages, the purpose of voltage regulation can be achieved, the equipment