Estimación de parámetros de suelo no homogéneo y diseño del sistema de puesta a tierra de la subestación Loreto 138/69 kV

Abstract

A method is proposed with the purpose of obtaining the non-homogeneous soil model in 2 layers by using genetic algorithms for the design of grounding systems. The proposed method allows obtaining a two-layer soil model from the resistivity measurements made on the ground in which the grounding system is going to be implemented; in this way a non-homogeneous soil model with values closer to the real behavior is obtained, decreasing errors during the design process. Consequently, the design is performed in an optimal way, reducing the presence of dangerous areas for people or equipment in the event of a ground fault due to errors in the calculated parameters. The proposed methodology is a structured tool for estimating parameters of non-homogeneous soil; demonstrates effective and comparable results with those of works done by several researchers taken as reference. The previous steps of the proposed methodology are an advantage compared to previous works, and allow to know the qualitative information of the soil model that is expected, allowing to validate the said model before and after the execution, finding a correspondence between the results.