Considering the phenomenon of asymmetric and special network structure,a distribution network of conventional components and steady/transient model of distributed power supply are established.The intelligent distribution network related algorithm of three-phase flow algorithm,three phase short circuit current and three-phase time-domain simulation algorithm are proposed based on the characteristic of three-phase asymmetric distribution network.Finally,simulation platform of intelligent distribution network is developed,which is applied in Nanjing CBD successfully,verifying its effectiveness and rationality.