A decentralized control architecture for a microgrid with power electronic interfaces

This paper presents a decentralized control architecture for the autonomous operation of a microgrid with power electronic interfaces. The control architecture is based on a multi-agent system (MAS) in which all agents are hierarchically equal and there is no central agent. Neighbor to neighbor three-step communication algorithms are used by the MAS to determine real and reactive power mismatches and resolve the dispatch of real and reactive power among the agents within the microgrid. The research described here includes the design of control modes for the power electronic interfaces in the microgrid. The proposed method is demonstrated on a system comprising four microsources, and is implemented using MATLAB/SIMULINK.