The service integration of transmission and distribution network is a trend in regional power grid dispatch operation and development. In consideration of the present energy management system(EMS)and distribution management system(DMS)development in an independent mode
the service demand of transmission and distribution network in coordinated operation and analytic calculation is analyzed. The coordinated operation overall structure of transmission and distribution network advanced application are proposed. On this basis
several key technologies
including unified modeling
topology analysis
power flow calculation
risk assessment and fault handling in transmission and distribution network are treated
while references for coordinated operation and system construction in transmission and distribution network dispatch service are provided.