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Lightning Modeling and Its Effects on Electric Infrastructures

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: closed (10 August 2021) | Viewed by 24478

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Special Issue Editors


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Guest Editor
Naval, ICT and Electrical Engineering Department (DITEN), University of Genoa, 16145 Genoa, Italy
Interests: electromagnetic fields; lightning modelling; optimization; microgrid and renewables
Special Issues, Collections and Topics in MDPI journals

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Co-Guest Editor
Naval and Electrical Engineering Department, University of Genoa, 16145 Genoa, Italy
Interests: electrical engineering; lightning protection; lightning modelling; software engineering and computer communications (networks)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Infrastructure security and people’s safety are the first objectives when it comes to dealing with high voltages or high currents issues. In this framework, lightning studies play a crucial role because of the dangerous consequences of this kind of phenomenon. It is well known that the normal operation of transmission and distribution systems is greatly affected by lightning, which is one of the major causes of power interruptions: lightning causes flashovers in overhead transmission and distribution lines, resulting in overvoltages on the line conductors that are due either to direct strikes or to nearby, indirect strikes.

The aim of this Special Issue will be, in particular, modeling lightning activity, investigating physical causes, discussing and testing mathematical models for the electromagnetic fields associated to lighting phenomena, and statistics on and measurements of the lightning activity, which represent a crucial point both for validating theoretical models as well as for providing numerical values which are able to quantify the risk due to lightning events.

Dr. Massimo Brignone
Dr. Daniele Mestriner
Guest Editors

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Keywords

  • Lightning
  • Lightning measurements and modeling
  • Numerical methods for lightning
  • Lightning electromagnetic fields
  • Lightning-induced effects and protection

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Published Papers (8 papers)

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Editorial

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3 pages, 160 KiB  
Editorial
Lightning Modeling and Its Effects on Electric Infrastructures
by Massimo Brignone and Daniele Mestriner
Appl. Sci. 2021, 11(23), 11444; https://doi.org/10.3390/app112311444 - 2 Dec 2021
Viewed by 1407
Abstract
Infrastructure security and people’s safety are the first objectives when it comes to dealing with high voltages or high currents issues [...] Full article
(This article belongs to the Special Issue Lightning Modeling and Its Effects on Electric Infrastructures)

Research

Jump to: Editorial

16 pages, 9295 KiB  
Article
Lightning Surge Analysis for Overhead Lines Considering Corona Effect
by Xiaoqing Zhang and Kejie Huang
Appl. Sci. 2021, 11(19), 8942; https://doi.org/10.3390/app11198942 - 25 Sep 2021
Cited by 2 | Viewed by 1697
Abstract
Corona discharge characteristics are measured in a corona cage. The difference is found between the qu curves under double exponential and damped oscillation surges. The behavior of the minor loops is revealed for the qu curves under positive and [...] Read more.
Corona discharge characteristics are measured in a corona cage. The difference is found between the qu curves under double exponential and damped oscillation surges. The behavior of the minor loops is revealed for the qu curves under positive and negative damped oscillation surges. An extended improvement is made on the traditional approach for modeling of the qu curves under damped oscillation surges. The extended approach has the capability of describing the complicated trajectory feature of the minor loops. On the basis of the extended approach, an efficient method is proposed for performing lightning surge analysis of overhead lines considering the corona effect. In the proposed method, an overhead line with corona is divided into a certain number of line segments. Each segment is converted into a circuit unit consisting of a non-linear branch and a linear circuit. With these circuit units connected in sequence, a complete equivalent circuit is constructed for the overhead line with corona. The transient responses can be obtained from the solution to the equivalent circuit. Then, the calculated results are compared with the field test results on a test overhead line. Full article
(This article belongs to the Special Issue Lightning Modeling and Its Effects on Electric Infrastructures)
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12 pages, 3816 KiB  
Article
Physical Simulation of the Spectrum of Possible Electromagnetic Effects of Upward Streamer Discharges on Model Elements of Transmission Line Monitoring Systems Using Artificial Thunderstorm Cell
by Nikolay Lysov, Alexander Temnikov, Leonid Chernensky, Alexander Orlov, Olga Belova, Tatiana Kivshar, Dmitry Kovalev and Vadim Voevodin
Appl. Sci. 2021, 11(18), 8723; https://doi.org/10.3390/app11188723 - 18 Sep 2021
Cited by 7 | Viewed by 1641
Abstract
The results of a physical simulation using negatively charged artificial thunderstorm cells to test the spectrum of possible electromagnetic effects of upward streamer discharges on the model elements of transmission line monitoring systems (sensor or antennas) are presented. Rod and elongated model elements [...] Read more.
The results of a physical simulation using negatively charged artificial thunderstorm cells to test the spectrum of possible electromagnetic effects of upward streamer discharges on the model elements of transmission line monitoring systems (sensor or antennas) are presented. Rod and elongated model elements with different electric field amplification coefficients are investigated. A generalization is made about the parameters of upward streamer current impulse and its electromagnetic effect on both kinds of model elements. A wavelet analysis of the upward streamer corona current impulse and of the signal simultaneously induced in the neighboring model element is conducted. A generalization of the spectral characteristics of the upward streamer current and of the signals induced by the electromagnetic radiation of the nearby impulse streamer corona on model elements is made. The reasons for super-high and ultra-high frequency ranges in the wavelet spectrum of the induced electromagnetic effect are discussed. The characteristic spectral ranges of the possible electromagnetic effect of upward streamer flash on the elements of transmission line monitoring systems are considered. Full article
(This article belongs to the Special Issue Lightning Modeling and Its Effects on Electric Infrastructures)
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20 pages, 1146 KiB  
Article
Impact of Grounding Modeling on Lightning-Induced Voltages Evaluation in Distribution Lines
by Daniele Mestriner, Rodolfo Antônio Ribeiro de Moura, Renato Procopio and Marco Aurélio de Oliveira Schroeder
Appl. Sci. 2021, 11(7), 2931; https://doi.org/10.3390/app11072931 - 25 Mar 2021
Cited by 11 | Viewed by 2337
Abstract
Lightning-induced voltages are one of the main causes of shutdown in distribution lines. In this work, attention is focused on the effects of wideband modeling of electric grounding in the overvoltage calculation along insulator strings due to indirect lightning strikes. This study is [...] Read more.
Lightning-induced voltages are one of the main causes of shutdown in distribution lines. In this work, attention is focused on the effects of wideband modeling of electric grounding in the overvoltage calculation along insulator strings due to indirect lightning strikes. This study is done directly in the time-domain with the grounding being represented with an equivalent circuit accounting for its dynamics. Results show that the adoption of commonly adopted simplified grounding models, such as low-frequency resistance, may lead to an underestimation of the overvoltage. According to the results, differences in the order of 25% can be found in some studied cases. Full article
(This article belongs to the Special Issue Lightning Modeling and Its Effects on Electric Infrastructures)
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12 pages, 406 KiB  
Article
Corona Effect Influence on the Lightning Performance of Overhead Distribution Lines
by Daniele Mestriner and Massimo Brignone
Appl. Sci. 2020, 10(14), 4902; https://doi.org/10.3390/app10144902 - 17 Jul 2020
Cited by 6 | Viewed by 2872
Abstract
Overhead distribution lines can be seriously damaged from lightning events because both direct and indirect events can cause flashovers along the line. The lightning performance of such power lines is usually computed neglecting the effect of corona discharge along the conductors: in particular, [...] Read more.
Overhead distribution lines can be seriously damaged from lightning events because both direct and indirect events can cause flashovers along the line. The lightning performance of such power lines is usually computed neglecting the effect of corona discharge along the conductors: in particular, the corona discharge determined by the indirect lightning event is taken into account only by few researchers because it can have meaningful impacts only in few cases. However, when we deal with overhead distribution lines with high Critical Flashover value (CFO) and small diameters, the corona discharge caused by indirect events has to be taken into account. This paper shows the effects of corona discharge in the lightning performance computation of overhead distribution lines. The analysis will involve different configurations in terms of line diameter and air conditions, focusing on the negative effect of corona discharge in the number of dangerous events that determine line flashovers. Full article
(This article belongs to the Special Issue Lightning Modeling and Its Effects on Electric Infrastructures)
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11 pages, 2773 KiB  
Article
An Efficient Method for Calculating the Lightning Electromagnetic Field Over Perfectly Conducting Ground
by Xin Liu and Tianping Ge
Appl. Sci. 2020, 10(12), 4263; https://doi.org/10.3390/app10124263 - 22 Jun 2020
Cited by 5 | Viewed by 2730
Abstract
In the implementation of the Cooray–Rubinstein formula, the calculation of a lightning electromagnetic field over perfectly conducting ground accounted for most of the computation time. Commonly, evaluating the ideal lightning electromagnetic field is based on the numerical integration method. In practice, only a [...] Read more.
In the implementation of the Cooray–Rubinstein formula, the calculation of a lightning electromagnetic field over perfectly conducting ground accounted for most of the computation time. Commonly, evaluating the ideal lightning electromagnetic field is based on the numerical integration method. In practice, only a sufficiently small discretization step is essential to get an accurate result, which leads to a relatively large number of calculations and results in a lengthy computation time. Besides, the programming is relatively complicated because the propagation of the lightning current along the channel must be considered. In order to increase the efficiency and simplify the programming, an improved method is proposed in this paper. In this method, the evaluation of the ideal lightning electromagnetic field is equated with a summation of analytical formulae and a simple integral operation, so it would be more efficient and easily programmed. The validation of the proposed method is demonstrated by some simulation examples. Full article
(This article belongs to the Special Issue Lightning Modeling and Its Effects on Electric Infrastructures)
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15 pages, 4808 KiB  
Article
On the Efficiency of OpenACC-aided GPU-Based FDTD Approach: Application to Lightning Electromagnetic Fields
by Sajad Mohammadi, Hamidreza Karami, Mohammad Azadifar and Farhad Rachidi
Appl. Sci. 2020, 10(7), 2359; https://doi.org/10.3390/app10072359 - 30 Mar 2020
Cited by 9 | Viewed by 3290
Abstract
An open accelerator (OpenACC)-aided graphics processing unit (GPU)-based finite difference time domain (FDTD) method is presented for the first time for the 3D evaluation of lightning radiated electromagnetic fields along a complex terrain with arbitrary topography. The OpenACC directive-based programming model is used [...] Read more.
An open accelerator (OpenACC)-aided graphics processing unit (GPU)-based finite difference time domain (FDTD) method is presented for the first time for the 3D evaluation of lightning radiated electromagnetic fields along a complex terrain with arbitrary topography. The OpenACC directive-based programming model is used to enhance the computational performance, and the results are compared with those obtained by using a CPU-based model. It is shown that OpenACC GPUs can provide very accurate results, and they are more than 20 times faster than CPUs. The presented results support the use of OpenACC not only in relation to lightning electromagnetics problems, but also to large-scale realistic electromagnetic compatibility (EMC) applications in which computation time efficiency is a critical factor. Full article
(This article belongs to the Special Issue Lightning Modeling and Its Effects on Electric Infrastructures)
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18 pages, 4823 KiB  
Article
Lightning Protection Methods for Wind Turbine Blades: An Alternative Approach
by Viktor Mucsi, Ahmad Syahrir Ayub, Firdaus Muhammad-Sukki, Muhammad Zulkipli, Mohd Nabil Muhtazaruddin, Ahmad Shakir Mohd Saudi and Jorge Alfredo Ardila-Rey
Appl. Sci. 2020, 10(6), 2130; https://doi.org/10.3390/app10062130 - 20 Mar 2020
Cited by 9 | Viewed by 7366
Abstract
Lightning strikes happens in a fraction of time, where they can transfer huge amounts of charge and high currents in a single strike. The chances for a structure to be struck by lightning increases as the height increases; thus, tall structures are more [...] Read more.
Lightning strikes happens in a fraction of time, where they can transfer huge amounts of charge and high currents in a single strike. The chances for a structure to be struck by lightning increases as the height increases; thus, tall structures are more prone to lightning. Despite the existing lightning protection systems available for wind turbine blades, there are still many cases reported due to the fact of damage caused by lightning strike. Owing to that, the present work introduces a new approach for a lightning protection system for wind turbine blades where preliminary investigations were done using Analysis Systems (ANSYS) Workbench. Two models were developed: one with a conventional type down conductor system and the other with a hybrid conductor system. The recorded findings have been compared and discussed, where it was found that the hybrid conductor system may provide alternative protection from lightning for wind turbine blades. Full article
(This article belongs to the Special Issue Lightning Modeling and Its Effects on Electric Infrastructures)
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