Coordinated Control Technology of Uninterrupted Supply Operation for Medium Voltage Multi-Terminal AC/DC Interconnection System and its Test Platform

Abstract

Multi-terminal AC/DC interconnection is one of the important forms of future distribution network, and the uninterrupted supply operation is the foundation for system reliable operation. Concerning a medium voltage AC/DC distribution network based on multi-terminal interconnection structure, the operation modes including master-slave and peer-to-peer are analysed, and the corresponding coordinated control technology of uninterrupted supply operation under different modes is proposed. A digital/analog hybrid test platform is further built. Finally, the feasibility of the proposed coordinated control technology is tested and verified.