Análisis del impacto dinámico de los sistemas de generación distribuida en los sistemas de subtransmisión a 69kV de la Empresa Eléctrica Regional Centro Sur C.A.

Abstract

This paper analyzes the dynamic impact of Distributed Generation (DG) on the 69 kV subtransmission systems of Empresa Eléctrica Regional Centro Sur C.A. in Cuenca, Ecuador. The integration of renewable sources such as solar photovoltaic and wind energy poses technical challenges that affect grid stability, generating voltage fluctuations, harmonics, and variations in power flow. Therefore, current regulations are reviewed, including international standards such as IEEE 2800 and local ARCO- NEL regulations, which establish technical requirements for the connection of DG to the grid. The behavior of the generation systems is analyzed through computational simulations, considering events such as changes in irradiance, line disconnections, load variations, and short circuits. The practical and theoretical study demonstrates that the incorporation of DG in the subtransmission network is applicable and, therefore, is of great relevance to energy planning in Ecuador, since it allows for the optimization of the subtransmission.