Comparison and Analysis on Key Performance of EHV/UHV DC Transmission Line Surge Arresters

Gu, Shanqiang; Wang, Jian; Wan, Shengpeng; Cao, Wei; He, Jinliang

doi:10.1109/iclp.2018.8503314

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…The installation of LSA aims to improve the overall lightning performance, and it is well documented in the literature [24][25][26][27][28]. Even though it is a very effective solution to improve the lightning performance, it is often considered not economically viable to install LSA all along a transmission line.…”

Section: Line Surge Arresters (Lsa) Solutionmentioning

confidence: 99%

Techniques for the improvement of the lightning back-flashover performance of double circuit HVDC lines

Manduley

Pack

Xémard

et al. 2021

Electric Power Systems Research

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Section: Line Surge Arresters (Lsa) Solutionmentioning

confidence: 99%

Techniques for the improvement of the lightning back-flashover performance of double circuit HVDC lines

Manduley

Pack

Xémard

et al. 2021

Electric Power Systems Research

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“…In recent years, in order to deal with the problems of lightning strike fault of DC transmission system, the DC line surge arresters have been developed to protect the installed towers from lightning flashover and achieve good results [4, 5]. However, the DC transmission channels are up to 2000 or 3000 km long, and the arresters cannot be installed for all towers subject to economic input.…”

Section: Introductionmentioning

confidence: 99%

Study on lightning risk assessment and early warning for UHV DC transmission channel

Wang

et al. 2019

High Voltage

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Operation data show lightning faults account for >70% for the main ultra-high voltage (UHV) DC transmission channels, very different from the design view. In order to accurately master the lightning characteristics and the lightning protection performance of the line so as to propose solutions to weak points, this study firstly obtains and analyses the density and strength distributions of lightning risk source. Then the study proposes a set of risk assessment process where the key model electrogeometric model is improved according to the polarity effect of DC line. Then the work realises the calculation of the lightning shielding failure risk of single tower and whole line. The example shows the assessment result is consistent to the line's actual operation. Next, to further evaluate and predict the lightning risk in real time, the study adopts the backpropagation neural network algorithm to integrate the lightning detection data, atmospheric electric fields, and radar echoes to develop the early warning model of lightning risk source, and proposed a method to realise the early warning of lightning damage risk for UHV DC channels. The results show that the effective warning ratio is 73% and the failure-to-warn ratio is 27% which indicates very good application effects.

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Study on Short-Circuit Current Performance of ±500kV DC Transmission Line Surge Arrester

Wan

Wang

et al. 2019

2019 11th Asia-Pacific International Conference on Lightning (APL)

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Comparison and Analysis on Key Performance of EHV/UHV DC Transmission Line Surge Arresters

Cited by 3 publications

References 13 publications

Techniques for the improvement of the lightning back-flashover performance of double circuit HVDC lines

Techniques for the improvement of the lightning back-flashover performance of double circuit HVDC lines

Study on lightning risk assessment and early warning for UHV DC transmission channel

Study on Short-Circuit Current Performance of ±500kV DC Transmission Line Surge Arrester

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