Research on dynamic viewport display method for automatic generation of power flow diagram

Abstract

Abstract. Power flow diagram is an important tool of modern Energy Management System (EMS)for system operators to schedule the operation and maintenance plan, examine security situation and dispatch in real-time. Manually creation and maintenance of power flow diagram of large scale power grid is time consuming and error prone. In the previous research, exposure of the detail information inside substations that is of interest to system operators and incremental update of the generated diagrams are not supported for diagram automatic generation of power flow diagrams. In this paper, we propose dynamic viewport display method for automatic generation of large scale power flow diagram. Firstly, integrative management of model and graph of the power grid is introduced. Then dynamic viewport display method is developed to automatically generate the power flow diagram for large scale power grid. With our proposed approach, essential layout inside the substation is exposed to support systematic simulation and control. Besides, incremental mapping is supported to increase the efficiency for diagram generation and maintenance. The method could not only improve efficiency and practicability of power flow diagram automatic generation, but also provide the systematic and integrative map for simulation and control of the power grid. The example in actual projects has shown its advantages.