Optimal Expansion Planning for Medium and Large MicroRedes: Galapagos Case

The cost and stochastic nature of the renewable energy sources (FER), and of demand, make the planning, integration and operation of a Micorred a complex issue. It is critical of dimensioning the appropriate size of the FER and the energy storage elements (ESS) associated with a microred, for efficient, economical and reliable operation. For this, the optimization of its topology and operation, including the cost of additional elements, which for small networks may not be significant, such as the cost of electrical networks. This is especially valid for medium and large -scale micro -redes such as island micro -redes. The commercial solutions proposed for this purpose in general do not take into account the costs associated with the electrical networks, assuming that the FER and ESS are connected in a single bar. In addition, the proposed to date lineizes or simplifies the problem leading to obtain sub-phytimal solutions. In this work it is proposed to implement a mathematical formulation and solution algorithms for the optimal planning of the expansion of medium and/or large -scale micrordes including wind generation, photovoltaic solar energy (PV), ESS systems, and the associated networks in the configuration of a microrred. The formulation of this algorithm will be of non-linear type in such a way to have a more realistic representation of the functioning of the microred. To obtain the results, the electrical system data of the Galapagos Islands and a test system obtained from literature will be used.

21st UNIVERSITY RESEARCH PROJECT COMPETITION