Lightning path simulation based on the stepped leader: Electrical conductivity effects

Mendes, Odim; Domingues, Margarete Oliveira

doi:10.1016/j.jastp.2005.05.004

Cited by 8 publications

(2 citation statements)

References 23 publications

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“…Sudden flow of electromagnetic discharge in a thunderstorm forms lightning. Moisture, unbalanced air and updraft wind create cumulonimbus clouds which are the common birthplace of five types of lightning including cloud to cloud (CC), intra-cloud (IC), cloud to ground (CG), cloud to air and from top of the cloud toward stratosphere (Mendes and Domingues, 2005). According to the creation and movements of the cloud to ground lightning strikes in a thunderstorm, a new evolutionary algorithm is developed which is capable of performing optimization analysis (Kheshti et al, 2017a(Kheshti et al, , 2017b.…”

Section: Lightning Flash Algorithmmentioning

confidence: 99%

Optimal overcurrent relay coordination in distribution network based on Lightning Flash Algorithm

Kheshti

Kang

2018

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Purpose Distribution network protection is a complicated problem and mal-operation of the protective relays due to false settings make the operation of the network unreliable. Besides, obtaining proper settings could be very complicated. This paper aims to discuss an innovative evolutionary Lightning Flash Algorithm (LFA) which is developed for solving the relay coordination problems in distribution networks. The proposed method is inspired from the movements of cloud to ground lightning strikes in a thunderstorm phenomenon. LFA is applied on three case study systems including ring, interconnected and radial distribution networks. The power flow analysis is performed in Digsilent Power Factory software; then the collected data are sent to MATLAB software for optimization process. The proposed algorithm provides optimum time multiplier setting and plug setting of all digital overcurrent relays in each system. The results are compared with other methods such as particle swarm optimization and genetic algorithm. The result comparisons demonstrate that the proposed LFA can successfully obtain proper relay settings in distribution networks with faster speed of convergence and lower total operation time of relays. Also, it shows the superiority and effectiveness of this method against other algorithms. Design/methodology/approach A novel LFA is designed based on the movements of cloud to ground lightning strikes in a thunderstorm. This method is used to optimally adjust the time multiplier setting and plug setting of the relays in distribution system to provide a proper coordination scheme. Findings The proposed algorithm was tested on three case study systems, and the results were compared with other methods. The results confirmed that the proposed method could optimally adjust the relay settings in the electric distribution system to provide a proper protection scheme. Practical implications The practical implications can be conducted on distribution networks. The studies provided in this paper approve the practical application of the proposed method in providing proper relay protection in real power system. Originality/value This paper proposes a new evolutionary method derived from the movements of cloud to ground lightning strikes in thunderstorm. The proposed method can be used as an optimization toolbox to solve complex optimization problems in practical engineering systems.

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Section: Lightning Flash Algorithmmentioning

confidence: 99%

Optimal overcurrent relay coordination in distribution network based on Lightning Flash Algorithm

Kheshti

Kang

2018

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“…Ψ j, k , Ψ z1, j, k and Ψ z2, j, k are the direct, overestimation and underestimation wind energy cost coefficients [36]. An induced electric field is generated between the cloud and the earth beneath [37,38]. A weak spark called the stepped leader breaks down the air and moves in the electric field toward the ground with speed of around 2 × 10 5 m/s [39].…”

Section: Ceed With Wind Penetrationmentioning

confidence: 99%

Lightning flash algorithm for solving non‐convex combined emission economic dispatch with generator constraints

Kheshti

Kang

et al. 2017

IET Generation, Transmission & Distribution

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The charge distribution in lightning downward leader channel based on RC distributed circuit model

Li,

Cao,

Wen

et al. 2024

Electr Eng

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Lightning path simulation based on the stepped leader: Electrical conductivity effects

Cited by 8 publications

References 23 publications

Optimal overcurrent relay coordination in distribution network based on Lightning Flash Algorithm

Optimal overcurrent relay coordination in distribution network based on Lightning Flash Algorithm

Lightning flash algorithm for solving non‐convex combined emission economic dispatch with generator constraints

The charge distribution in lightning downward leader channel based on RC distributed circuit model

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