2024 : 4 : 22
Saeedreza Ostadzadeh

Saeedreza Ostadzadeh

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0002-9463-5642
Education: PhD.
ScopusId: 15065733900
Faculty: Engineering
Address: Arak University
Phone:

Research

Title
Parametric dependence of lightning impulse behavior of grounding electrodes buried in a dispersive and ionized lossy soil under first- and subsequent-stroke currents
Type
JournalPaper
Keywords
Dispersion, Ionization, Grounding electrode, Applied electromagnetism, Computational electromagnetics, Continuum sensitivity analysis, Earthing
Year
2020
Journal COMPEL
DOI
Researchers Seyyed sajjad Sajjadi ، Saeedreza Ostadzadeh ، Seyed hossein Hesamedin Sadeghi

Abstract

To the best of the authors’ knowledge, there is no research on sensitivity analyses for the simultaneous inclusion of the two effects on the effective length and the induced voltage on the soil surface. To this end, the simplified MTL is applied to the grounding electrodes. The simulation results show that the computational efficiency in comparison with previous methods is, first, considerably increased. Second, the simultaneous effects result in decreasing the soil surface voltage with respect to situations where either ionization or dispersion is taken into account (single-affected soils). In other words, the performance of grounding systems is improved. Third, the effective length in both-affected soil is has a middle value with respect to the single-affected soil. Such findings practically and financially are of importance.