Transient analysis of inductive induced voltage between power line and nearby pipeline

Wu, Xuan; Zhang, Hui; Karady, G.G.

doi:10.1016/j.ijepes.2016.04.051

Cited by 21 publications

(5 citation statements)

References 15 publications

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“…For security reasons, Spanish legislation forbids the installation of wires at depths of less than 0.6 m. In addition, burial depths greater than 3 metres are beyond the capacity of usual construction equipment, and the maximum distance between two circuits is limited to 6 metres because of the nature of urban terrain, as in ( 13)-( 14). Other external constraints, pipelines or obstacles can modify the characteristics of the parameters of the circuits [18] and the optimal results. In the proposed formulation, these geometrical constraints can be easily considered by the inclusion of additional equality and inequality restrictions in the optimization problem.…”

Section: Minimization Of Costs and Magnetic Field Generated By N-cabl...mentioning

confidence: 99%

Optimal statistical calculation of underground cable bundles positions for time-varying currents

Jiménez

Castronuovo

Rodríguez-Morcillo

2018

International Journal of Electrical Power & Energy Systems

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Section: Minimization Of Costs and Magnetic Field Generated By N-cabl...mentioning

confidence: 99%

Optimal statistical calculation of underground cable bundles positions for time-varying currents

Jiménez

Castronuovo

Rodríguez-Morcillo

2018

International Journal of Electrical Power & Energy Systems

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“…When the overhead power conductor suffers a lightning strike, the lightning current in the intruding conductor will generate a space-alternating electromagnetic field around the conductor such that the adjacent pipeline, due to inductive coupling, produces a pipeline overvoltage [4,5]. If the lightning current makes the line insulator flashover, the lightning current will be scattered along the surface of the flashover insulator through the tower grounding grid such that the adjacent pipeline, due to resistive coupling, produces a pipeline overvoltage [6][7][8]. Furthermore, due to the existence of resistive coupling and the pipeline insulation layer's potential difference, the safe operation of the pipeline has been threatened; thus, research into the overvoltage protection of the transmission line adjacent to the pipeline is of great significance.…”

Section: Introductionmentioning

confidence: 99%

Research on Lightning Overvoltage Protection of Line-Adjacent Pipelines Based on Solid-State Decoupling

Liu,

Hu,

Tian

et al. 2023

Applied Sciences

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Existing transmission lines and pipelines are frequently crossed and erected in parallel, meaning that if lightning strikes a wire and causes insulator flashovers, the resulting lightning current will spread through the grounding of the tower where the flashover insulator is located. This dispersion of current can lead to overvoltage effects on nearby pipelines. This study performs simulation calculations to analyze the overvoltage experienced by pipelines due to the dispersion of grounding current from the tower. Furthermore, this paper proposes a method for protecting the pipeline from such an overvoltage. Firstly, the lightning transient calculation model of a transmission line tower is constructed using the electromagnetic transient software ATP-EMTP 5.5. The model calculates the effects of lightning peak currents and soil resistivity on the distribution characteristics of lightning current in the tower, specifically in the area where the flashover insulator is located. Subsequently, a calculation model of the tower grounding grid–natural gas pipeline is developed, taking into account the distribution characteristics of lightning current in the tower. This model analyzes the impact of lightning peak currents, soil resistivity, and pipeline spacing on pipeline overvoltage. Finally, the effectiveness of the solid-state decoupler in mitigating lightning overvoltage in the pipeline is verified. The results demonstrate a positive correlation between the lightning current entering the tower grounding grid through the flashover insulator and the lightning current distribution characteristics. The solid-state decoupling device proves to be effective in reducing the voltage of the pipeline insulation layer, and the simulation results provide the optimal laying length of the bare copper wire.

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“…Metallic buried pipelines sharing the same corridor as AC power lines are subjected to AC interference, which is potentially harmful to personnel and equipment [1][2][3]. Some of the most critical conditions for the pipelines' integrity are caused by transient phenomena, such as lightning or short circuits of the power lines [4,5]. In particular, lightning strikes may cause discharge currents up to hundreds of kA for a duration of several microseconds [6].…”

Section: Introductionmentioning

confidence: 99%

Laplace Transform for Finite Element Analysis of Electromagnetic Interferences in Underground Metallic Structures

et al. 2022

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A numerical methodology is proposed for the calculation of transient electromagnetic interference induced by overhead high-voltage power lines in metallic structures buried in soil—pipelines for oil or gas transportation. A series of 2D finite element simulations was employed to sample the harmonic response of a given geometry section. The numerical inverse Laplace transform of the results allowed obtaining the time domain evolution of the induced voltages and currents in the buried conductors, for any given condition of the power line.

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Transient analysis of inductive induced voltage between power line and nearby pipeline

Cited by 21 publications

References 15 publications

Optimal statistical calculation of underground cable bundles positions for time-varying currents

Optimal statistical calculation of underground cable bundles positions for time-varying currents

Research on Lightning Overvoltage Protection of Line-Adjacent Pipelines Based on Solid-State Decoupling

Laplace Transform for Finite Element Analysis of Electromagnetic Interferences in Underground Metallic Structures

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