Study of the coupling interference of high-voltage transmission lines on adjacent buried steel pipelines based on CDEGS

Wang, Xinhua; Wang, Yuexin; Sun, Tao; Yang, Xuyun; Yang, Lin; Qi, Yongsheng

doi:10.1016/j.epsr.2023.109125

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…To understand the perturbations that DC ground current might inflict on the cathodic protection potential of buried pipelines, simulations were executed focusing on the section of the grounding electrode proximate to the pipeline, at a span of 2 km. By modulating the current amplitude of 'The default parameter group' within the established preliminary conditions, we gauged the alterations in the cathodic protection potential distribution across the pipeline [24].…”

Section: Grounding Pole Currentsmentioning

confidence: 99%

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Effect of DC grounding electrode currents on the corrosion interference behavior of cathodic protection of nearby pipelines

Chen,

Li,

Zhang

et al. 2023

Meas. Sci. Technol.

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When operating a direct current (DC) transmission grounding electrode in single-pole return ground mode, transient currents traverse the soil, generating stray currents. These currents can intensify the corrosion of long-distance transmission pipelines near the grounding electrode, subsequently altering the pipeline’s cathodic protection potential. Previous investigations into the interference of grounding electrodes on pipeline cathodic protection have overlooked the cathodic protection systems themselves. Addressing this gap, we integrated COMSOL’s electrochemical module with its AC/DC module. To corroborate the accuracy of our COMSOL-based models, we devised specific validation experiments. Additionally, we crafted a COMSOL application builder interface to streamline computations. Consequently, we derived a multi-regression function to express the cathodic protection potential of the pipeline under varied factors and executed a regression tree classification for soil resistivity. To pinpoint optimal corrosion protection for pipelines, we simulated the cathodic protection of segmentally isolated pipelines, determining that potential excursions can be notably mitigated. This research offers insights into both disturbance evaluation and protective strategies for DC transmission and pipelines.

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Section: Grounding Pole Currentsmentioning

confidence: 99%

“…Underground pipelines with anticorrosive coatings are imperative assets for various industries, particularly oil and gas. These coatings protect pipelines from environmental factors and ensure the efficient and safe transport of materials [24]. However, these coatings are not invulnerable.…”

Section: Pipeline Coating Breakage Defectsmentioning

confidence: 99%

Effect of DC grounding electrode currents on the corrosion interference behavior of cathodic protection of nearby pipelines

Chen,

Li,

Zhang

et al. 2023

Meas. Sci. Technol.

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“…A technique for assessing the induced voltage on pipelines located at short distances from an ultra-high voltage transmission line is presented in [12]. The inductive effects of overhead power lines on pipelines are considered in [13]. Efficient algorithms for analyzing the electromagnetic effects of power transmission lines on oil and gas pipelines are described in [14].…”

mentioning

confidence: 99%

Modeling the Effects of Electromagnetic Interference from Multi-Wire Traction Networks on Pipelines

et al. 2023

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The 25 kV traction network creates highly intensive electromagnetic fields. These fields affect the long conductive structures located near railway lines and can induce voltage, posing a danger for maintenance personnel. Typical examples of such structures are pipelines, which are used to transport liquid and gaseous products. In addition to compromising electrical safety, the induced voltage can result in dangerous densities of corrosion currents in pipe insulation defects. Therefore, the determination of the induced voltage and current in the pipes is undoubtedly relevant. An analysis of existing literature on the electromagnetic compatibility of traction networks and pipelines indicates that important aspects regarding the effects of traction networks and high-voltage power lines on extended conductive structures have been addressed. However, these works do not present a unified method to determine the induced voltage on parts of the structures and the current flowing through the pipeline. Such a method could be based on a technology that models the operation of electric power systems in phase coordinates. This paper presents the development of a method and the results of the studies aimed at modeling the voltage induced by complex traction networks. The developed digital models make it possible to adequately determine the induced voltage created by multi-wire traction networks and the current flowing through the pipes. Using these models, one can make an informed decision regarding the appropriate measure to ensure the safety of personnel working on these structures, as well as the development of corrosion prevention methods and measures.

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Study of the coupling interference of high-voltage transmission lines on adjacent buried steel pipelines based on CDEGS

Cited by 2 publications

References 8 publications

Effect of DC grounding electrode currents on the corrosion interference behavior of cathodic protection of nearby pipelines

Effect of DC grounding electrode currents on the corrosion interference behavior of cathodic protection of nearby pipelines

Modeling the Effects of Electromagnetic Interference from Multi-Wire Traction Networks on Pipelines

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