Modeling method of transmission line support devices in DMS (Distribution Management System) system power grid model

The invention discloses a modeling method of transmission line support devices in a DMS (Distribution Management System) system power grid model. The method is characterized in that the devices only with the function of supporting a transmission line are transformed from joint models into universal models in the power grid model. In the prior art, when a power grid is managed by using a DMS system, all transmission line support devices (such as an electric pole) included in power objects are used as joint models having connection relation with the power grid; and due to participation in computational analysis of the DMS, the performance of the system is lowered. According to the method provided by the invention, the devices only with the function of supporting the transmission line in the power grid model are transformed from the original joint models into the universal models without electric connection function; the universal models do not participate in system operation and only serve as icon identifiers in the power grid model; the number of analytical models of the DMS system is greatly reduced and the system performance is improved.