The invention relates to the technical field of electrical power systems, and relates to an electrical power
system multi-target optimal
power flow implementation method and device. The method provided by the invention comprises the following steps of: (1) calculating an
admittance matrix according to designated
power grid data, and constructing a multi-target planning problem corresponding to the optimal
power flow; (2) normalizing a target function of the multi-target optimal
power flow problem; (3) establishing self-
adaptive control of parameters by utilizing a flexibility analyzing technique; (4) resolving each single target optimizing problem in an alternative iteration mode; and (5) acquiring an approximate set of an
effective solution set of the multi-target optimal power flow problem. The device provided by the invention comprises a constructing unit, a normalizing unit, a creating unit, a
processing unit and an acquisition unit. According to the invention, a plurality of mutually conflicted power supply targets can be reasonable compromised and coordinated well, information of the whole
effective solution set or the approximate set with almost equal distances of the
effective solution set is obtained, and a strategy support is provided for
energy conservation and emission reduction as well as safe and economical running of the electrical power
system.