Resumo

MARTINEZ LOZANO, Miguel. Methodology based on neural networks for earth resistivity interpretation in congested urban areas. Energética [online]. 2014, vol.35, n.1, pp. 59-69. ISSN 1815-5901.

One of the main troubles for grounding system design in an electrical installation on congested urban areas is obtaining the soil parameters, since the traditional measurements techniques are not applicable due to the limited space. In the present work, an alternative procedure based on introducing a driven rod into the soil and registering the variation of ground resistance versus the depth, is presented; with the field measurements obtained, a procedure were evaluated to estimate the soil parameters in a simplified bi-stratified model (two vertical layers) using a trained neural network to minimize the effort and time to obtain the respective results. The trouble about the measurement and estimation of electrical soil properties in congested urban areas is solved with the detailed methodology presented, based on non conventional measurement techniques and computational processing.The results obtained during both digital simulation and field measurements, demonstrates the validity of the proposed procedure and making feasible its application to engineering projects.

Palavras-chave : soil resistivity estimation on congested urban areas; grounding systems; neural networks.

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