Determination of the probability of a lightning strike in the elements of the object taking into account the statistical distribution of the current value
Problem. Modern international standards in the field of lightning protection, when assessing the probability of a lightning strike into an object, do not take into account the statistical distribution of the lightning current. Goal. Justification of the expediency of taking into account the statisti...
Gespeichert in:
| Datum: | 2023 |
|---|---|
| 1. Verfasser: | |
| Format: | Artikel |
| Sprache: | English Ukrainian |
| Veröffentlicht: |
National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine
2023
|
| Schlagworte: | |
| Online Zugang: | http://eie.khpi.edu.ua/article/view/284142 |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Назва журналу: | Electrical Engineering & Electromechanics |
Institution
Electrical Engineering & Electromechanics| id |
eiekhpieduua-article-284142 |
|---|---|
| record_format |
ojs |
| institution |
Electrical Engineering & Electromechanics |
| baseUrl_str |
|
| datestamp_date |
2023-08-21T18:26:45Z |
| collection |
OJS |
| language |
English Ukrainian |
| topic |
lightning protection risk assessment RSM - Rolling Sphere Method object of arbitrary shape probability distribution of lightning current collection area |
| spellingShingle |
lightning protection risk assessment RSM - Rolling Sphere Method object of arbitrary shape probability distribution of lightning current collection area Kniaziev, V. V. Determination of the probability of a lightning strike in the elements of the object taking into account the statistical distribution of the current value |
| topic_facet |
lightning protection risk assessment RSM - Rolling Sphere Method object of arbitrary shape probability distribution of lightning current collection area блискавкозахист оцінка ризику RSM – метод сфери що котиться об’єкт довільної форми розподіл ймовірності сили струму блискавки площа стягування |
| format |
Article |
| author |
Kniaziev, V. V. |
| author_facet |
Kniaziev, V. V. |
| author_sort |
Kniaziev, V. V. |
| title |
Determination of the probability of a lightning strike in the elements of the object taking into account the statistical distribution of the current value |
| title_short |
Determination of the probability of a lightning strike in the elements of the object taking into account the statistical distribution of the current value |
| title_full |
Determination of the probability of a lightning strike in the elements of the object taking into account the statistical distribution of the current value |
| title_fullStr |
Determination of the probability of a lightning strike in the elements of the object taking into account the statistical distribution of the current value |
| title_full_unstemmed |
Determination of the probability of a lightning strike in the elements of the object taking into account the statistical distribution of the current value |
| title_sort |
determination of the probability of a lightning strike in the elements of the object taking into account the statistical distribution of the current value |
| title_alt |
Визначення ймовірності удару блискавки в елементи об’єкта з урахуванням статистичного розподілу сили струму |
| description |
Problem. Modern international standards in the field of lightning protection, when assessing the probability of a lightning strike into an object, do not take into account the statistical distribution of the lightning current. Goal. Justification of the expediency of taking into account the statistical distribution of the lightning current with a determined probability of lightning striking the elements of the object, and the effectiveness of the application of the improved «rolling sphere» method. Methodology. Method of mathematical modeling, based on RSM with additional consideration of the probability distribution of lightning current. Results. The expediency of taking into account the statistical distribution of lightning current at the determined probability of lightning striking the elements of the object has been proven. The effectiveness of the improved «rolling sphere» method, implemented in the form of a computer program, which takes into account the given probability distribution of lightning current in the range from 2 kA to 200 kA, has been proved. The expediency of introducing the concept of «average value of the area of the collection area» is substantiated, taking into account the probability of lightning with a current in a given range. It has been established that the application of the standardized formula leads to a significant (many times) overestimation of the predicted number of lightning strikes to the object, if the height of the object exceeds 20 m. The reasons for the difference, according to the author, are due to the following properties of the standardized methodology: usually, the real shape of the object is not taken into account; statistical distribution of lightning current is not taken into account; it is based on the results of experimental studies obtained mainly for mast or rod-type objects in laboratory conditions with a limited discharge interval. Practical value. This approach will provide an opportunity to optimize the layout of lightning arresters during the restoration of objects, taking into account green reconstruction. The obtained results are proposed for consideration by the Technical Committee TC 81 IEC for inclusion in the next editions of the standards. |
| publisher |
National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine |
| publishDate |
2023 |
| url |
http://eie.khpi.edu.ua/article/view/284142 |
| work_keys_str_mv |
AT kniazievvv determinationoftheprobabilityofalightningstrikeintheelementsoftheobjecttakingintoaccountthestatisticaldistributionofthecurrentvalue AT kniazievvv viznačennâjmovírnostíudarubliskavkivelementiobêktazurahuvannâmstatističnogorozpodílusilistrumu |
| first_indexed |
2025-07-17T11:49:48Z |
| last_indexed |
2025-07-17T11:49:48Z |
| _version_ |
1850412121647480832 |
| spelling |
eiekhpieduua-article-2841422023-08-21T18:26:45Z Determination of the probability of a lightning strike in the elements of the object taking into account the statistical distribution of the current value Визначення ймовірності удару блискавки в елементи об’єкта з урахуванням статистичного розподілу сили струму Kniaziev, V. V. lightning protection risk assessment RSM - Rolling Sphere Method object of arbitrary shape probability distribution of lightning current collection area блискавкозахист оцінка ризику RSM – метод сфери що котиться об’єкт довільної форми розподіл ймовірності сили струму блискавки площа стягування Problem. Modern international standards in the field of lightning protection, when assessing the probability of a lightning strike into an object, do not take into account the statistical distribution of the lightning current. Goal. Justification of the expediency of taking into account the statistical distribution of the lightning current with a determined probability of lightning striking the elements of the object, and the effectiveness of the application of the improved «rolling sphere» method. Methodology. Method of mathematical modeling, based on RSM with additional consideration of the probability distribution of lightning current. Results. The expediency of taking into account the statistical distribution of lightning current at the determined probability of lightning striking the elements of the object has been proven. The effectiveness of the improved «rolling sphere» method, implemented in the form of a computer program, which takes into account the given probability distribution of lightning current in the range from 2 kA to 200 kA, has been proved. The expediency of introducing the concept of «average value of the area of the collection area» is substantiated, taking into account the probability of lightning with a current in a given range. It has been established that the application of the standardized formula leads to a significant (many times) overestimation of the predicted number of lightning strikes to the object, if the height of the object exceeds 20 m. The reasons for the difference, according to the author, are due to the following properties of the standardized methodology: usually, the real shape of the object is not taken into account; statistical distribution of lightning current is not taken into account; it is based on the results of experimental studies obtained mainly for mast or rod-type objects in laboratory conditions with a limited discharge interval. Practical value. This approach will provide an opportunity to optimize the layout of lightning arresters during the restoration of objects, taking into account green reconstruction. The obtained results are proposed for consideration by the Technical Committee TC 81 IEC for inclusion in the next editions of the standards. В роботі розглянуто застосування методу «сфери що котиться» до об’єктів інфраструктури у вигляді території, яка включає будівлі та споруди довільної форми. Запропоновано алгоритм урахування статистичного розподілу ймовірності сили струму блискавки для визначення ймовірності влучення блискавки у елементи об’єкту. Визначено, що не урахування цього аспекту у сучасних нормативних документах, призводить до суттєвих помилок. Такий підхід наддасть можливість оптимізувати схему розміщення блискавкоприймачів під час відновлення об’єктів з урахуванням зеленої реконструкції. National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2023-08-21 Article Article Peer-reviewed Article application/pdf application/pdf http://eie.khpi.edu.ua/article/view/284142 10.20998/2074-272X.2023.5.08 Electrical Engineering & Electromechanics; No. 5 (2023); 57-62 Электротехника и Электромеханика; № 5 (2023); 57-62 Електротехніка і Електромеханіка; № 5 (2023); 57-62 2309-3404 2074-272X en uk http://eie.khpi.edu.ua/article/view/284142/280022 http://eie.khpi.edu.ua/article/view/284142/280023 Copyright (c) 2023 V. V. Kniaziev http://creativecommons.org/licenses/by-nc/4.0 |