Bolstering the Structure of Stand-alone Microgrids through Demand Side Management

Abstract

A stand-alone microgrid is subject to the challenges of inconsistent voltage and frequency. The transition of voltage and frequency from their predetermined range leads to a disparity in the value of active and reactive power. This paper addresses the voltage customization of a microgrid network to preserve power and to enable the mechanism of demand side management (DSM). An outer voltage and inner current loop have been adopted to perform DSM actions. An adaptive control structure is proposed that sets the voltage and current of the microgrid according to the modified voltage in the droop characteristics. The paper aims to address solutions to potential power catastrophes in the new era. A dynamic frequency controller is utilized to maintain the frequency in the predetermined range. The adequacy of the control structure is proved using simulation results performed in the MATLAB environment.