An evolutionary algorithm for the optimisation of the distributed generation dispatch

This paper presents a methodology for solving power dispatch problems in electrical power distribution and transmission networks through Evolutionary Algorithms (EA). Optimising the dispatch of distributed generation units embedded in high and medium voltage distribution networks will be discussed taking into account system capacity, voltage levels, electrical losses and generation costs. The basics of Evolutionary Algorithms is presented showing their elementary functionality, detailed characteristics and applicability, as well as the particular development for the proposed problem. Concerning the computational environment modelling, a network-planning integrated application is used to make networks editing and results displaying more efficient. The case study applied to an illustrative high voltage distribution network helps to explain the main purpose of this article as a contribution to the optimisation methods applied to electrical power system problems.