Network based protection based on the peer-to-peer communication—Part I: Research on the protection of the multiple power and radicalized connection structure

Based on the peer-to-peer communication system, a new protection theory for the multiple power and radialized connection structure is brought forward in this paper. By the peer-to-peer communication system, the theory can fulfill the coordination between the protection relays and improve the speed and selectivity of distribution system protection. It solves the cooperation difficulty between different protection relays in the power distribution system which has short line and cascaded switches. It is a new protection theory. By the modern communication and the simple criterions, the entire network cooperates more efficiently than before.