In the current power grid dispatching automation system

the version management of model is confined to the management of time dimension information changes of the grid model. A multi-version managing method of the grid model is proposed based on the model set and the difference model. The method consists in dividing the model of application and space dimension into the corresponding version space. By using the model set as a baseline and the superposition of difference models with different effective time

the multi-version management is able to improve the flexibility in retrospecting model history

modeling future models and transforming the application models. It is capable of realizing the harmony and unification of real-time monitoring of the power grid and the historical and future grid analysis on the level of power grid models

satisfying the demand for analysis of researches on the three-dimensional grid of time

space and application by the power grid dispatching control centers. This work is supported by Beijing Natural Science Foundation (No. 3132035).