Power Flow Control between the Grid and Distributed Generation for Dynamic Load Variation with VSC Converter

Abstract

This paper proposes a novel control method for the flow of power between utility and micro grid by controlling real and reactive power flow through back to back converter .The propose control strategy run in two different cases , in case 1 - real and reactive power are shared between the load and the micro grid through back to back converter. Case 2 , the required load demand by the utility is first taken until the DG reaches its maximum limit .the balanced required power to the utility is only taken by the micro grid . It is also shown the voltage or frequency fluctuation in the load side has no impact on the voltage or Power fluctuation. Different load variations i.e under, over load as well as constant load power sharing presented by simulating in MATLAB.