Design And Practice Of Feeder Automation(FA) Test Scheme In Nanchang Area

With the development of economy and society,higher reliability of distribution network power supply is required.Power distribution automation,an important means of emerging intelligent distribution network,is massively implemented in the distribution network gradually.Nanchang power supply company has completed Phase 1 of distribution automation project,which realizes the operation State monitoring of distribution network and automatic fault processing of distribution network in the pilot area.Fault handling function as the core function of distribution network automation,is critical to the safety and efficiency of electricity supply.But the feeder automation fault handling function lacks effective testing methods for a long time,and Inability to detect and debug the functional defects in time has a great impact on the practical process of distribution automation system.Therefore,the research and design of a dedicated feeder automation fault processing function of the field test program,in order to solve the problems such as the difficulty of coordinating management workload and the longtime of power failure,is of great significance to guarantee the stable operation of distribution network.in this paper,the test technology of feeder automation based on terminal injection is studied,The feeder automation test device is developed,the case preset test of feeder automation line in the condition of ceaseless electricity is realized.Integrated with feeder automation fault processing function scheme and distribution automation communication technology scheme of Nanchang,the problem of time synchronization and test interference is solved,a set of feeder automation(FA)integrated test scheme for Nanchang power grid,and feeder automatic electrification test,feeder automation fault processing logic verification,distributed interactive simulation function is realized.The result of the project has been successfully applied in the reconstruction of the distribution network automation in Nanchang,which has greatly improved the test efficiency,reduced the field test time,and brought some social and economic benefits.