A Comparison of Frequency-Dependent Soil Models: Electromagnetic Transient Analysis of Overhead Transmission Lines Using Modal Decomposition

Tainá Fernanda Garbelim Pascoalato, Anderson Ricardo Justo de Araújo, Jaimis Sajid Leon Colqui, Sérgio Kurokawa and José Pissolato Filho
Additional contact information
Tainá Fernanda Garbelim Pascoalato: Department of Electrical Enegineering, São Paulo State University (UNESP), Ilha Solteira 15385-000, Brazil
Anderson Ricardo Justo de Araújo: School of Electrical and Computer Engineering, State University of Campinas (UNICAMP), Campinas 13083-852, Brazil
Jaimis Sajid Leon Colqui: School of Electrical and Computer Engineering, State University of Campinas (UNICAMP), Campinas 13083-852, Brazil
Sérgio Kurokawa: Department of Electrical Enegineering, São Paulo State University (UNESP), Ilha Solteira 15385-000, Brazil
José Pissolato Filho: School of Electrical and Computer Engineering, State University of Campinas (UNICAMP), Campinas 13083-852, Brazil

Energies, 2022, vol. 15, issue 5, 1-31

Abstract: This article investigates the influence of four causal frequency-dependent (FD) soil models and their impact on the responses of a multiphase overhead transmission line (OHTL) with ground wires, generated by a lightning strike. The FD models proposed by Longmire-Smith (LS), Messier (M), Portela (P) and Alípio-Visacro (AV) are considered. The ground-return impedance and admittance matrices are computed with the Nagakawa approach for both frequency-constant and FD soil models. The frequency-domain modal voltages and time-domain transient voltages are assessed in this work. Modal decomposition technique is used to study the attenuation constant, propagation velocity and voltages for each propagation mode. Simulations are carried out in a frequency range of 100 Hz to 10 MHz, for OHTLs with lengths of 1 and 10 km, on soils of 700 and 4000 Ω ·m. Simulation results demonstrated that the Portela (P) model has resulted in more significant variation in the ground-return impedance and admittance, constant attenuation and propagation velocity in which a pronounced variation, especially at the high frequencies, is seen. On the other hand, Longmire-Smith (LS) and Messier (M) have produced similar results in both frequency and time domains. Additionally, the Alípio-Visacro (AV) model has produced intermediate responses, being the model recommended by CIGRÈ WG C4.33. Time-domain induced voltage waveforms obtained with the Portela (P) model has shown pronounced differences, especially at the peak values, for the high-resistive soil. This study demonstrates the importance of considering the FD soil models to assess the transient responses adequately, especially when OHTLs are on high-resistive soils.

Keywords: electromagnetic analysis; lightning; multiphase overhead lines; modal decomposition; frequency-dependent soil models (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/5/1687/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/5/1687/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:5:p:1687-:d:757425

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().