Power grid equipment utilization rate optimization method and device and storage medium

The invention discloses a power grid equipment utilization rate optimization method and apparatus, and a storage medium. The method comprises the steps of obtaining a heavy load line and an overload line in a region according to a line load rate; obtaining a heavy-load line and adjacent lines and connection lines of loads capable of being transferred by the overload line; calculating the load transfer-out upper limit of the heavy load line and the overload line and the switchable load upper limit of the adjacent line and the connection line; obtaining a power load subdivision portrait of the region; obtaining a user load matching relation according to the power load subdivision user portraits; matching the loads on the heavy load line, the overload line, the adjacent line and the tie line according to the user load matching relationship to obtain a line load matching result; and generating a line load switching strategy according to the load switching-out upper limit, the switchable load upper limit and the l