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Monte-Carlo-based simulation and investigation of 230 kV transmission lines outage due to lightning

Karami, E ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1049/hve.2019.0147
  3. Publisher: Institution of Engineering and Technology , 2020
  4. Abstract:
  5. Here, using the probabilistic evaluation based on the Monte Carlo method, back-flashover rate and shielding failure flashover rate of 230 kV overhead transmission lines in the western regions of Iran are evaluated. To such an aim, first, the number of thunderstorm days per year is collected from the reported weather information in order to determine the ground flash density. Then, using MRU-200 equipment, the tower-footing resistance of several towers is measured. Matlab® software is used in order to produce lightning surges considering its probabilistic nature and randomly distribution on the ground to evaluate striking distance based on the geometric model. Then, calculated parameters are transferred to EMTP-RV software by establishing a link to perform the transient simulation and report the results for modelled 230 kV transmission line. Finally, considering IEEE-1243 standard, it is shown that due to high ground flash density, using 230 kV tower with one shield wire is not sufficient to protect the line against lightning phenomena. © 2020 Institution of Engineering and Technology. All rights reserved
  6. Keywords:
  7. Electric lines ; Flashover ; Lightning ; MATLAB ; Probability distributions ; Transmissions ; Geometric modeling ; Ground flash densities ; Lightning surges ; Overhead transmission lines ; Probabilistic evaluation ; Shielding failure flashovers ; Transient simulation ; Weather information ; Monte Carlo methods
  8. Source: High Voltage ; Volume 5, Issue 1 , 2020 , Pages 83-91
  9. URL: https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/hve.2019.0147