Complex-Valued State Matrices for Simple Representation of Large Autonomous Microgrids Supplied by $PQ$ and $Vf$ Generation

摘要

This paper focuses on representing the state space model of a microgrid in which power regulated ($PQ$ ) and voltage/frequency regulated ( $Vf$) generation units share a distribution system. The generation units considered in this paper are inverter interfaced. This introduces some interesting modeling problems which are treated in the paper, such as the decoupled cascaded control schemes or the non-negligible grid dynamics.