Publications related to Lightning Electromagnetic Fields and Their Induced Voltages on Overhead Lines: the Effect of a Non-flat Lossy Ground

Related publications (18)

Entangled Photon-Pair Emission in Waveguide Circuit QED from a Cooper Pair Splitter

As a waveguide circuit QED architecture, we investigate theoretically the single-photon pair emission of a Cooper pair splitter composed of two double quantum dots, each coupled to a microwave transmission line. We find that this system can generate freque ...

American Physical Society (APS)2025

On the correction of the transient ground resistance at early times in lightning surge propagation studies

Farhad Rachidi-Haeri, Hannes Kohlmann

The impact of the ground losses on transient surges that propagate along transmission lines is taken into consideration in the telegrapher’s equations through the so-called transient ground resistance function ξ’g(t), for which numerous ex-pressions exist. ...

2024

Study of Ionized Particles in a Gyrotron Using a Full Gyrotron Simulation Model

Jean-Philippe Hogge, Jérémy Genoud

The ionization of the residual gas in gyrotrons causes the generation of positively charged ions and negatively charged electrons. Using the electron optics code Ariadne, it was possible to simulate the behavior of these electrons in the overall gyrotron g ...

Institute of Electrical and Electronics Engineers Inc.2024

Assessment of the transmission line theory in the modeling of multiconductor underground cable systems for transient analysis using a full-wave FDTD method

Farhad Rachidi-Haeri, Rafael Silva Alipio, Naiara Figueiredo Duarte

In this paper, a rigorous and independent validation of two different approaches for calculating the ground-return impedance and admittance of multiconductor underground cable systems using the transmission line theory is carried out. Furthermore, analyses ...

Elsevier2023

Lightning-Induced Voltages on Overhead Distribution Lines Computed through Analytical Expressions for the Electromagnetic Fields

Farhad Rachidi-Haeri, Marcos Rubinstein

The evaluation of lightning ElectroMagnetic (EM) fields represents the most cumbersome part of the lightning-induced voltages computation process. Their evaluation is usually performed through a numerical routine or with simplified analytical expressions, ...

2021

Revisiting the Calculation of the Early Time HEMP Conducted Environment

Farhad Rachidi-Haeri, Nicolas Mora Parra, Carlos Alberto Romero Romero

The early time high altitude electromagnetic pulse conducted environment calculation is revisited by using the transmission line (TL) theory and including high-frequency corrections that were not present in the earlier studies. Waveform salient parameters, ...

2021

Analysis of the Effectiveness of the Series Inductor Integration Into the MFT for SST Applications

Drazen Dujic, Marko Mogorovic

This paper analyzes the effectiveness of the integration of the series inductor into the medium frequency transformer used for series resonant or dual active bridge converters - galvanically isolated DC-DC converters for high-power medium-voltage (solid st ...

2020

Investigation of Electromagnetic Field Coupling to a Transmission Line Terminated with Non-Vertical Risers

Farhad Rachidi-Haeri

Recently, a simple and efficient method was proposed to take into account non-vertical risers at the end of transmission lines through an equivalent partial inductance. This paper evaluates the frequency above which the inductance needs to be taken into ac ...

IEEE2020

On the Modeling of Non-Vertical Risers in the Interaction of Electromagnetic Fields With Overhead Lines

Farhad Rachidi-Haeri, Marcos Rubinstein, Jun Guo

This paper proposes a simple method to take into account non-vertical risers through an equivalent partial inductance. The proposed approach was validated considering several examples and taking as reference full-wave results obtained using a numerical ele ...

2019

A New Engineering Model of Lightning M Component That Reproduces Its Electric Field Waveforms at Both Close and Far Distances

Farhad Rachidi-Haeri, Marcos Rubinstein, Mohammad Azadifar, Quanxin Li

We present a new engineering model for the M component mode of charge transfer to ground that can predict the observed electric field signatures associated with this process at various distances, including (a) the microsecond-scale pulse thought to be due ...

2019

Modeling of EMP Coupling to Lossless MTLs in Time Domain Based on Analytical Gauss-Seidel Iteration Technique

Farhad Rachidi-Haeri, Jun Guo

This paper provides an efficient way to simulate the transient electromagnetic field coupling to overhead multi conductor transmission lines in time domain based on an analytical iterative technique. The method is entirely in time domain and therefore can ...

2018

Experimental Characterization of the Response of an Electrical and Communication Raceway to IEMI

Farhad Rachidi-Haeri, Marcos Rubinstein, Nicolas Mora Parra

This paper reports the results of two experimental campaigns aimed at studying the high-frequency response of a raceway containing low voltage power, telephone, and Ethernet cables, to external electromagnetic field illumination. The raceway was tested aga ...

Institute of Electrical and Electronics Engineers2016

A New Set of Electrodes for Coaxial Quarter Wave Switched Oscillators

Farhad Rachidi-Haeri

We present a new profile for the electrodes forming the radial transmission line of a switched oscillator (SWO). The profile is formed using a curvilinear orthogonal space based on a specific 2-D transformation called logarithmic-tangent. The proposed prof ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Lightning Return Strokes to Tall Towers: Ability of Engineering and Electromagnetic Models to Reproduce Nearby Electromagnetic Fields

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Abdolhamid Shoory, Seyed Abbas Mosaddeghi

We present measurements of nearby vertical and horizontal electric fields from leaders and return strokes associated with lightning strikes to the 100-m-tall Gaisberg Tower in Austria obtained in 2007 and 2008. The fields were measured at a distance of abo ...

Ieee-Inst Electrical Electronics Engineers Inc2012

The Effect of a Horizontally Stratified Ground on Lightning Electromagnetic Fields

Farhad Rachidi-Haeri, Abdolhamid Shoory

2010

Validity of Simplified Approaches for the Evaluation of Lightning Electromagnetic Fields above a Horizontally Stratified Ground

Farhad Rachidi-Haeri, Abdolhamid Shoory, Abdenabi Mimouni

We review in this paper simplified analytical expressions derived by Wait using the concept of attenuation function for the analysis of the propagation of lightning radiated electromagnetic fields over a horizontally stratified ground. Considerations regar ...

Institute of Electrical and Electronics Engineers2010

Toroidal Universal Drift Instability: A Global Gyrokinetic Study

Laurent Villard, Stephan Brunner

An electron density gradient driven instability identified as the toroidal branch of the universal drift instability is studied using a global gyrokinetic model treating both electrons and ions fully nonadiabatically and valid at all orders in the ratio of ...

American Institute of Physics (AIP)2010

Evaluation of Lightning-Induced Disturbances in Buried Cables

Farhad Rachidi-Haeri, Mario Paolone

2008