Application Status of Corrosion Monitoring Technologies in the Field of High-Voltage Direct Current Interference in Buried Pipelines

HU Shangmao, LIU Qingsong, LIU Gang, DENG Jun, JIA Lei, ZHANG Yi, CHEN Wei, CAI Hansheng

doi:10.16577/j.issn.1001-1560.2023.0272

2023 , Vol. 56 >Issue 11: 139 - 148

DOI: https://doi.org/10.16577/j.issn.1001-1560.2023.0272

Application Status of Corrosion Monitoring Technologies in the Field of High-Voltage Direct Current Interference in Buried Pipelines

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(1. Electrical Power Research Institute, CSG, Guangzhou 510663, China; 2. Maintenance &Test Center, CSG EHV Power Transmission Company, Guangzhou 510663, China)

Received date: 2023-05-10

Revised date: 2023-06-18

Accepted date: 2023-07-14

Online published: 2023-12-25

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Abstract

In order to better understand the corrosion risk of single pole operation of high-voltage direct current (HVDC) grounding electrodes on pipelines, a comprehensive review of corrosion monitoring technologies for buried pipelines over recent decades was conducted in this paper; the principles of various corrosion monitoring techniques were introduced, and the application status of different corrosion monitoring technologies in the context of HVDC interference with buried pipelines was summarized; the advantages and disadvantages of four rapid corrosion measurement methods, namely the field burial method, intelligent pile monitoring method, electrochemical reduction (ER) corrosion rate probe method and laboratory simulation experiments, in evaluating the corrosion rate of buried pipelines under HVDC interference were mainly analyzed. Based on this analysis, recommendations for the application of various corrosion monitoring techniques in the field of HVDC interference with buried pipelines were proposed. Additionally, new directions in monitoring technology for corrosion rate of buried pipelines under HVDC interference were explored, providing references for relevant researchers and engineers.

Key words： high voltage direction current (HVDC); earth electrode; corrosion monitoring; corrosion rate; pipeline

Cite this article

HU Shangmao, LIU Qingsong, LIU Gang, DENG Jun, JIA Lei, ZHANG Yi, CHEN Wei, CAI Hansheng . Application Status of Corrosion Monitoring Technologies in the Field of High-Voltage Direct Current Interference in Buried Pipelines[J]. Materials Protection, 2023 , 56(11) : 139 -148 . DOI: 10.16577/j.issn.1001-1560.2023.0272

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