Multiagent And WAN Based Adaptive Coordinated Protection System

This paper presents a multi-agent and WAN based adaptive coordinated protection system (MAWBACPS). The system utilizes IP intranet to realize real-time wide area information exchange of a power system. Multi-agent system's several good qualities to solve distributing problems are used to realize the coordination of the operation settings of protective relays. A new idea of effortful adaptation for power system protection is proposed, and a new method to determine adaptive coordinated relay settings of lines are proposed in this paper. Moreover, the structure, communication mechanism and coordination control strategy of MAWBACPS, and relating agents' design are presented. Experiment results illustrate that MAWBACPS can realize the coordination of protections, enable the back-up relays to use their adaptive settings in most situations, and efficiently improve the security of power system