Research and Application of Three-phase Power Flow Calculation in Distribution Network

Base on the description of standard distribution network expansion package of DCIM (Distribution Common Information Model) in IEC61968, the power flow calculation related equipment model of distribution network is established. The basic principle of power flow calculation based on Newton Raphson method is adopted, and the large-scale distributed power access to distribution network is taken into account, so as to realize the design of tide flow calculation algorithm. Based on the platform of distribution automation management system, the online three-phase power flow calculation program is developed, which is reliable and easy to operate, and fully meets the needs of the project, so as to solve the practical power flow analysis and calculation problems in the actual project.