Comparative Review of Consensus Controls with Triangle Mesh Topology for Reactive Power Sharing

摘要

In mismatched feeder line condition, reactive power sharing among distributed generators in islanded microgrids is one of the recent challenges. A comparative study is presented between two mathematical models of adaptive virtual impedance based on the leaderless and leader-followers consensus control methods. Also, a triangle mesh communication topology is proposed with these consensus methods to compare the accuracy of sharing reactive powers, enhancement of the rate of convergence, and the communication topology cost. A MATLAB/Simulink model with six distributed generators units validates the proposed control methods’ performances and finds the difference in the rate of convergence between leaderless and leader-followers consensus algorithms. The findings of the paper are leaderless consensus control is a reliable option with large systems, while the leader-followers consensus control is suitable for the small systems.