A distributed topology information storage and management method is proposed for the smart distribution network protection and control system. Each intelligent distribution terminal only needs to configure the basic topology information of the installation. Information of the adjacent terminals and division of the topological logic layer can be automatically acquired to complete the local topology identification through the orderly broadcast communication strategy

thereby providing the required topology to support the protection and control functions. Based on the local topology identification result

the minimum connection tree is generated for use as the basic unit to determine the agent terminal. A topology simplifying method based on the agent node is proposed to provide topology information acquisition and management to functions needing large-scale topology information. Taking the realization of distributed fault self-healing system as an example

the application of distributed topology information storage and management method for intelligent distribution network is analyzed.