An Analytical Method for Estimation of Lightning Performance of Transmission Lines Based on a Leader Progression Model

Sima, Wenxia; Li, Yongfu; Rakov, Vladimir A.; Yang, Qing; Yuan, Tao; Yang, Ming

doi:10.1109/temc.2014.2314772

Cited by 17 publications

(4 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 1990s, Dellera and Garbagnati [10] and Rizk [11] introduced a new method for SFR calculation known as leader progression model (LPM) which is based on the physics of lightning. This method has been developed in the last years because of its highly accurate results [12][13][14][15][16][17]. Although the results of the SFR calculated by LPM have a high level of accuracy, it is a complicated and time-consuming method.…”

Section: Introductionmentioning

confidence: 99%

Improved electro‐geometric model for shielding failure analysis of transmission lines

Hashemian¹,

Vahidi²,

Rahiminezhad³

2018

IET Science, Measurement & Technology

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Improved electro‐geometric model for shielding failure analysis of transmission lines

Hashemian¹,

Vahidi²,

Rahiminezhad³

2018

IET Science, Measurement & Technology

View full text Add to dashboard Cite

“…Sima et al . [] has also presented an analytical method for predicting the lightning strike to transmission lines, the Rizk criterion was employed as inception criterion of positive attachment leader, and the speed ratio λ of downward/upward leader was assumed to be equal to 2.5 in their model which varies from 4 to 1 [ Dellera and Garbagnati , ]. However, from the high‐speed optical observation data, the speed ratio of downward and upward leader is time varying rather than a constant value [ Lu et al ., ; Wang et al ., ].…”

Section: Introductionmentioning

confidence: 99%

“…Li et al [2012] has established a computational model for lightning, shielding performance of power transmission lines; however, it is assumed that the lightning strike could take place successfully when the inception condition of upward leader is satisfied. Sima et al [2014] has also presented an analytical method for predicting the lightning strike to transmission lines, the Rizk criterion was employed as inception criterion of positive attachment leader, and the speed ratio λ of downward/upward leader was assumed to be equal to 2.5 in their model which varies from 4 to 1 [Dellera and Garbagnati, 1990a]. However, from the high-speed optical observation data, the speed ratio of downward and upward leader is time varying rather than a constant value [Lu et al, 2013;Wang et al, 2016].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the lightning‐attractive radius for wind turbines considering the developing process of positive attachment leader

et al. 2017

View full text Add to dashboard Cite

In this paper, we have presented the upward leader propagation model, considering the transition of stream leader process by the finite element method and analyzing the inception and subsequent physical processes of upward leader and the attractive radius for large wind turbines. For validating our model, the comparison of simulated results with the optically high‐speed video observation shows that the model can predict an accepted result of upward leader from a 163 m tall tower, the simulated upward leader velocity and length before final jump are 2.3 × 105 m/s and 187.67 m presented by Warner (2010), which are very similar to the observed results of 2.8 × 105 m/s and 184 m, respectively. At the same time, we find that the assumed constant speed ratio of downward/upward leader is improper and cannot accurately predict the attractive radius by lightning strike. Also, the simulated results are compared with the widely used EGM (electro geometric model), and it is found that the EGM has an obvious underestimation of attractive radius more than 50%.

show abstract

“…In Japan, it was reported that most of the faults and power outages on overhead power lines are attributable to lightning strikes, and about 20 to 30% of the faults affect the double circuit lines [2,3]. Shielding failure accounts for more than 90% of the trip-out rate on the 500 kV lines in China [4]. It was stated in [5] that both the first and subsequent lightning strokes have resulted in flashover of insulators on 69 kV and 138 kV transmission towers.…”

mentioning

confidence: 99%

Assessment of shielding performance of 69/138 kV transmission lines exposed to lightning strikes

Malcolm

Aggarwal

2015

2015 IEEE Power &Amp; Energy Society General Meeting

View full text Add to dashboard Cite

Lightning is the leading cause of power interruptions on overhead transmission lines. The insulators used on overhead 69 kV and 138 kV transmission lines are likely to flashover whenever there is a direct lightning strike on the phase conductors due to their relatively low insulation levels. However, significant improvement can be achieved with the appropriate design of transmission line tower structures. This paper presents an analysis of the shielding failure flashover rate (SFFOR) occurrence on both 69 kV and 138 kV transmission tower lines and tower structures. This analysis is based on an electrogeometrical model recommended by the IEEE Standards 1243:1997.The analysis accounts for the striking distance of the geometry of the transmission lines and tower structures, the critical impulse flashover voltage (CFO) of the insulators, the statistical distribution of lightning current parameters and the keraunic level of the location of the lines. The proposed assessment is supported by the recommendations of CIGRE TB 549 (2013) for lightning parameters, which define the statistical distributions of lightning current parameters. The results show that shielding angle lower than 30 degrees predicts substantially lower SFFOR. Also, insulators with higher CFO ratings contribute to lower SFFOR. The analysis presented, therefore, could be applied to the design of high voltage transmission line support structures. Index Terms-Critical impulse flashover voltage, Lightning protection, Shielding failure flashover rate, Transmission line towers, Surge protection device I.

show abstract

An Analytical Method for Estimation of Lightning Performance of Transmission Lines Based on a Leader Progression Model

Cited by 17 publications

References 36 publications

Improved electro‐geometric model for shielding failure analysis of transmission lines

Improved electro‐geometric model for shielding failure analysis of transmission lines

Analysis of the lightning‐attractive radius for wind turbines considering the developing process of positive attachment leader

Assessment of shielding performance of 69/138 kV transmission lines exposed to lightning strikes

Contact Info

Product

Resources

About