Development of auxiliary line loss management system in Hebei grid

The auxiliary line loss management system in Hebei grid is developed. The data of system are taken from EMS. After getting data from EMS, state estimation will be carried out periodically. The ground state of power flow is from the results of state estimation. The hardware configuration of system is introduced. A data receiving server is configured to receive model, graphic and data in auxiliary line loss management system in Hebei grid. It can integrate province dispatching center´s model and six area dispatching centers´ model to integral model in this server. And the integral model can be imported into PSASP system. The data receiving server can offer data storage for line loss management system. Seven servers are configured for saving the data of province and six area dispatching centers. A workstation is configured for power system condition monitoring. And it can carry out relevant analysis and calculation of power system planning. The workstation can log in any calculating server and view the calculation results of line loss. The auxiliary line loss management system in Hebei grid contains six subsystems. The subsystem of line loss calculation and subsystem of integral calculation and historical data storage for line loss is background calculation module. The other four subsystems offer interface for users to create, maintain and use the line loss analysis system. The modeling of power system planning subsystem provides the user interface to establish and maintain the power system planning model. The line loss query and analysis tool provides line loss modeling and maintenance functions. And it provides line loss query and analysis functions also.