An Intelligent Multi-Agent Based Approach for Protecting Distribution Networks

Nowadays, the presence of distributed generations has made traditional networks into dynamic state. Current flow fluctuation, increment of fault current and as a result loss of coordination and also error in relays operation in safe sections in the network have been among the problems due to using these generations. Finding solution for these problems has always been challenging over the years. The purpose of this paper is to suggest a new solution in the study of protection system operation in electrical energy networks by using intelligent electronic equipment with communication protocols at the level of distribution networks. In recent years, telecommunications platform and intelligent equipment usage has provided a platform that has been able to show its effectiveness against network sudden changes. Multi-Agent system is the name of this communication platform that has been able to pioneer the beginning of a fundamental change in the design of protection systems in electrical energy networks by using a new scheme. These systems have shown that they have not been without problems and in some cases have caused problems for the network. In the proposed approach, the multilayer structure of the multi-agent system will be broken and the surfaces will be independent of each other. Unlike the typical multi-agent system protection method, protection settings at the moment of fault are not calculated for the entire network. This problem, which has not been seen in previous methods, also removes a large load density from the central unit and increases the operating speed and reliability of the protection system.