Research and Considerations on Active Distribution Network Participating in Transmission Congestion Management

With the access of distributed generations (DGs) and demand side resources (DSRs), problem of insufficient transmission line margin in the transmission network is becoming increasingly prominent, which also provides new opportunities for the active distribution network (ADN) to assist the transmission network in providing auxiliary services. In view of the research progress of ADN, this paper reviews the feasibility of ADN participating in transmission congestion management, ADN rescheduling and topology adjustment to participate in transmission congestion management. And focuses on the research status of transmission and distribution coordinated economic scheduling, ADN active reconfiguration and active islanding. Finally, further research direction of ADN participating in transmission congestion management is prospected.