Agent based power system management — Concept of congestion management

Congestion management is one of the technical challenges in the power system. Privatization and market liberalization lead to stressed operating conditions in existing and future power systems. Additionally, the increasing complexity of the power system results in an increased need for information on the actual grid condition and intelligent control methods. Unfortunately, measurement data from each node is not in the distribution level. Introduction of decentralized control methods allows overcoming the limitations associated with centralized control, like failure of main controller. In this paper, a concept of congestion management using a multi-agent system is presented. In this approach, control processes are realized by active power adjustments based on Power Transfer Distribution Factor methodology. Depending on localization of congested line, appropriate agent initiates the whole redispatch procedure.