CONTROLLER DESIGN FOR FREQUENCY CONTROL OF MICROGRID

Abstract

Evolutionary changes in the regulatory and operational climate of traditional electric utilities and the emergence of smaller generating systems such as microturbines have opened new opportunities for on-site power generation by electricity users in the form of Distributed Energy Resources (DER) - small power generators typically located at users’ sites. The significant potential of smaller DER to meet customers’ and utilities’ needs can be best captured by organizing these resources into MicroGrids. Although technical barriers discourage it, the MicroGrid could serve as a small source of power or ancillary services. In order to reduce the technical constraints, various control strategies are designed to sync the power quality and reliability of Microgrids with those of conventional grids. This dissertation has been created to analyze the effect of droop constant and integral gain on the two DG system and therefore determine the procedure for finding the controller parameters. The controller is then designed for this two DG system and its effectiveness is checked by using Simulink/MATLAB