Comparison with Centralized and Decentralized Systems for Power System Restoration

概要

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This paper proposes a multi-agent approach to decentralized power system restoration for distribution system networks and discusses a comparison with centralized and decentralized systems for power system restoration. So far, numerous studies have been conducted on power system restoration problems. From the view point of system structures, this research can be divided into two categories: centralized system and decentralized system. In this study, we have solved a power system restoration problem for the power distribution network with two kinds of methods: mathematical programming method (MIP) and the proposed multi-agent based method (MAS). The proposed multi-agent system consists of several Distributing Substation Agents (DSAGs) and Load Agents (LAGs). LAG corresponds to the customer load, while a DSAG supply electricity to LAG.From the simulation results, it can be seen the proposed system could reach the right solution by making use of only local information and the solution quality is better than that of the centralized system (MIP). This means that the proposed multi-agent restoration system is a promising approach to more large-scale distribution networks.