New solution for resolution of the Economic Load Dispatch by different mathematical optimization methods, turning off the less efficient generators

Abstract

The Economic Load Dispatch (ELD) is one of the most important tasks of optimization and operational decision for the in power systems. Traditional materials and methods have been developed to solve the economic dispatch. They allow you to determine the ideal combination of the output power of each generating unit, in order to meet the desired demand, without violating the restrictions. Traditional methodologies underutilize the capacity of the power plant by leaving all generators connected, in cases where demand is less than the total generation capacity of the plant, increasing total fuel costs. The objective of this work is to perform a comparison of several mathematical optimization methods (Lambda Iteration, Newton's Method and Quadratic Programming) in solving the ELD problem, considering the traditional methodology and the proposed methodology that includes turning off the less efficient generators.