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/lp/de-gruyter/estimation-of-two-layer-soil-parameters-using-gradient-method-ESbsb053hY
- Publisher
- de Gruyter
- Copyright
- © 2022 Nedis Dautbašić et al., published by Sciendo
- eISSN
- 2566-3151
- DOI
- 10.2478/bhee-2022-0007
- Publisher site
- See Article on Publisher Site
Abstract
AbstractAn efficient method for evaluation of an optimal two-layer soil model from Wenner four-probe measuring method, which has been used during experimental investigations, is presented within this paper. A two-layer soil model is assumed, and this soil model is an adequate representation of nonhomogeneous soil for grounding system design. The application of optimization techniques is required to estimate the electrical parameters of the proposed soil model. In this paper, first the fast gradient-descent method to solve a given optimization problem is chosen, and then with the aim of faster calculation for accelerating the rate of convergence of an infinite sum, the application of Aitken’s δ2 method is proposed.
Journal
B&H Electrical Engineering – de Gruyter
Published: Dec 1, 2022
Keywords: grounding system; soil resistivity; Wenner four-probe method; two-layer soil model; Fast gradient-descent method; Aitken’s δ 2 method