HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Theses

Surrogate models to estimate the magnetic field and the electrical surges generated by a direct lightning strike in industrial facilities

Abstract : From mechanical to electrical effects, a direct lightning strike to an industrial facility can cause severe damage. Knowing what to expect is not only fundamental to design the lightning protection system of the facility, but also necessary to achieve reliability and safety. One can find valuable principles in the existing literature to protect structures and equipment against the adverse effects of lightning. However, the principles which current standards are based on cannot be used in the safety demonstration. There is hence a growing need for accurate and validated tools to estimate the effects of lightning strikes and assess the risk associated. In this thesis, we have decided to focus on the indirect effects of direct lightning strikes on large industrial facilities. More specifically, on estimating the peak-values of the transient magnetic field generated by a direct strike inside industrial buildings, and the surges induced in underground cables when one of the buildings in the facility is struck by lightning. We carry out simulations using TEMSI-FD, a full-wave solver based on the finite-difference time-domain (FDTD) method. Then, using the data obtained from the simulations, we build different surrogate models to create a set of engineering tools to calculate the peak-values. Full-wave simulations can be computationally expensive and time consuming. Sometimes all one needs is a quick yet reasonable estimation of the values.
Document type :
Theses
Complete list of metadata

https://tel.archives-ouvertes.fr/tel-03653433
Contributor : Abes Star :  Contact
Submitted on : Wednesday, April 27, 2022 - 5:29:33 PM
Last modification on : Thursday, April 28, 2022 - 3:35:50 AM

File

2022LIMO0028.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-03653433, version 1

Collections

Citation

Susana Naranjo Villamil. Surrogate models to estimate the magnetic field and the electrical surges generated by a direct lightning strike in industrial facilities. Electromagnetism. Université de Limoges, 2022. English. ⟨NNT : 2022LIMO0028⟩. ⟨tel-03653433⟩

Share

Metrics

Record views

0

Files downloads

0