In this paper, we propose a multi-agent based restoration system for islanding distribution system. In the case of restoring an isolated power distribution system, since a power failure is restored using distributed power supplies, the supply capacity is generally insufficient for the demand. For this reason, it is necessary to restore from an important load in consideration of the restoration priority. In this paper, we propose a recovery method considering load priority.

The proposed multi-agent system consists of four types of agent: single facilitator agent (FAAG), several feeder agents (FAGs), several Load agents (LAGs), and several generator agents (GAGs). In the proposed system, FAAG and FAGs play as an important role, which facilitate the power interchange between GAGs and LAGs. From the simulation results, it can be seen the proposed multi-agent system could find suboptimal load distribution considering load priority.