An optimal design method for improving the lightning performance of overhead high voltage transmission lines

In this paper, a methodology for determination of the optimal value of protection design parameters, i.e. tower footing resistance, insulation strength, and surge arresters’ rating in the planning stage of transmission lines (TLs) is presented. This method calculates the shielding failure flashover rate (SFFOR) of TLs, based on Electro-geometric model (EGM) of TLs, and the back flashover rate (BFR) of TLs, based on the Monte Carlo method, in which the accuracy of the proposed methodology has been verified by comparing the resultant results with those obtained with the use of the IEEE FLASH program. The proposed method can be directly used to achieve the minimum lightning flashover rate (LFOR) of TLs by the minimum investment cost. Also, it can be used, indirectly, for determination of the appropriate value of the footing resistance, insulation strength and arresters’ rating to satisfy any target number of LFOR that might be specified by the utilities or standards.

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“…where P(β) is the probability distribution function of the random variable β. The variable β is defined as follows [7]:…”

Section: Back-flashover Failurementioning

confidence: 99%

“…In [6], the EMTP software is used to estimate the lightning performance of TLs. In [7], an optimization approach is presented to minimize lightning-related failure. The effect of non-vertical strokes on lightning performance has been investigated in [8].…”

Section: Introductionmentioning

confidence: 99%

A Methodology for Optimal Design of Transmission Lines to Protection against Lightning Surges in Presence of Arresters

Shariatinasab

Azimi

2020

AEM

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“…Several methods have been proposed to keep failure rates in a low level as well as to avoid damages and disturbances to the OHTL system. The methods such as improving tower footing resistance, installing earth wires, and transmission lightning arresters (TLA) installation [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Transmission-Lightning-Arrester : A Location Determination Using Tflash

Jambak¹,

Sidik²,

Buntat³

et al. 2015

EECSI

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The high density of lightning occurrence in Malaysia has caused problems to transmission and distribution electrical energy. Normally, transmission overhead lines trip due to Back Flashover (BF) of lightning and shielding failures of earth wire. Therefore, a detailed lightning study is required to analyse the corresponding lines and to determine the exact location of Transmission Lightning Arrester (TLA). In this paper, a simulation of lightning study using TFlash software associated with the installation of (TLA) at 132 kV SSWW-BBST overhead lines system located in Selangor, Malaysia is presented. By using the TFlash software the location of TLA has been determined.

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“…The estimation of the rates of lightning strikes on transmission lines using the electrogeometric model (EGM) has been an area of active research for years [2]- [13]. Shielding failure outage can be estimated according to several methods, such as the electrogeometrical model [2]- [10], numerical analysis model [14], analytical [15], and Electromagnetic Transients Program (EMTP) [16].…”

Section: Introductionmentioning

confidence: 99%

Leader Progression Analysis Model for Shielding Failure Computation by Using the Charge Simulation Method

Vahidi

Yahyaabadi

Tavakoli

et al. 2008

IEEE Trans. Power Delivery

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Shielding failure has long been recognized as a possible mode of lightning flashover. This paper reports the development of a method for estimating the shielding failure number of transmission lines using the charge simulation method. The effects of towers, sags of conductors, and a perfectly conducting ground are represented in 3-D computation. In addition, the stepwise descending nature of a downward negative leader-streamer system is taken into account by using an appropriate progression model. Upward leader inception and propagation is also modeled utilizing critical equivalent streamer-length criterion as well as Rizk's formula. The results of the comparison between traditional and proposed techniques with different criteria are also presented.Index Terms-Charge simulation method (CSM), leader, shielding failure number (SFN), transmission line.

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An optimal design method for improving the lightning performance of overhead high voltage transmission lines

Cited by 21 publications

References 23 publications

A Methodology for Optimal Design of Transmission Lines to Protection against Lightning Surges in Presence of Arresters

A Methodology for Optimal Design of Transmission Lines to Protection against Lightning Surges in Presence of Arresters

Transmission-Lightning-Arrester : A Location Determination Using Tflash

Leader Progression Analysis Model for Shielding Failure Computation by Using the Charge Simulation Method

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