Solution of the economic dispatch problem using global algorithm

Abstract

The concept of a microgrid system, when put in simple words, is a small-scale generation and deployment of power to a small geographical area in order to avoid transmission losses and maintain an uninterrupted power supply. It has been a mandatory protocol to implement the available renewable energy sources (RES) in order to minimize the emission of harmful pollutants to the atmosphere from the combustion of the fossil fuels. Economic load dispatch (ELD) deals with the optimal sizing of the distributed energy resources (DERs) by minimizing the fuel costs. Emission dispatch does the optimal sizing of the DERs sources by minimizing the number of pollutants released in the atmosphere. A multi-objective Combined Economic- Emission Dispatch (CEED) does the optimal DER sizing providing a compromised solution of minimizing both the fuel costs and pollutants emission. This work performs all ELD, emission dispatch and CEED on an islanded and renewable-integrated microgrid separately and a ten-unit Algerian Network using a recently developed novel Improved Harmony Search Algorithm (IHSA).