Secondary adaptive frequency consensus of AC microgrid exposed to network delays and high frequency noise signal

Abstract

This brief proposes a new consensus based adaptive frequency tracking scheme for dispersed generation (DG) based AC microgrid that is not connected to main grid. The distinct controllers has been designed following cooperative control algorithm having sufficient amount of adaptive potential. Linear quadratic regulator (LQR) calculates the controller gain. The microgrid performance has been checked exposing it to network delays (NDs) and high frequency noise (HFN) signals. Microgrid, subjected to NDs has been analyzed with the variation and alteration of control parameters. A detailed case study has been presented and simulated to generate results satisfying the proposed control scheme.