Complete Method to Assess the DC Corrosion Impact on Pipeline Systems During the Planning and Approval Stages of HVDC Systems With Earth Current Return

The technology of HVDC systems defines the current return process, which can be through a dedicated metallic conductor or through a conducting medium, such as the earth or sea. Although the magnitude of the earth/sea return current is normally specified in local regulations or project specifications...

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Main Authors: Charalambos A. Charalambous, Alexandros I. Nikolaidis
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9970329/
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author Charalambos A. Charalambous
Alexandros I. Nikolaidis
author_facet Charalambos A. Charalambous
Alexandros I. Nikolaidis
author_sort Charalambos A. Charalambous
collection DOAJ
description The technology of HVDC systems defines the current return process, which can be through a dedicated metallic conductor or through a conducting medium, such as the earth or sea. Although the magnitude of the earth/sea return current is normally specified in local regulations or project specifications, there is no explicit methodology to estimate the intermittent, time duration of this current, over the life-span of a system. However, dc interference/corrosion impacts related to the development of HVDC links are, to a large extent, associated to the time duration of the earth current. In the absence of any explicit methodology, the potential influence of the earth/sea return current on nearby critical infrastructures is often based on unrealistic or on conservative interference impact studies. The purpose of this paper is to firstly provide a methodology to quantify the expected intermittent duration of the earth return current - in point-to-point bipolar HVDC systems, which arises from their partial-availability or the emergency conditions. Subsequently, the proposed methodology is applied in a realistic dc interference/corrosion study of a critical pipeline system that operates near a HVDC link currently being constructed. In essence, the paper describes a top-down complete approach for HVDC dc interference modelling endeavors in an attempt to avoid conservative and costly mitigation measures concerning third-party critical infrastructures in the nearby vicinity.
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spelling doaj.art-66496590efb3412f8cdd9c801c6dfb7b2022-12-22T03:52:14ZengIEEEIEEE Access2169-35362022-01-011012755012756210.1109/ACCESS.2022.32269409970329Complete Method to Assess the DC Corrosion Impact on Pipeline Systems During the Planning and Approval Stages of HVDC Systems With Earth Current ReturnCharalambos A. Charalambous0https://orcid.org/0000-0003-4476-9332Alexandros I. Nikolaidis1Department of Electrical and Computer Engineering, Power Systems Modeling (PSM) Laboratory–EMI, Earthing and Corrosion, University of Cyprus, Nicosia, CyprusTransmission System Operator-Cyprus, Nicosia, CyprusThe technology of HVDC systems defines the current return process, which can be through a dedicated metallic conductor or through a conducting medium, such as the earth or sea. Although the magnitude of the earth/sea return current is normally specified in local regulations or project specifications, there is no explicit methodology to estimate the intermittent, time duration of this current, over the life-span of a system. However, dc interference/corrosion impacts related to the development of HVDC links are, to a large extent, associated to the time duration of the earth current. In the absence of any explicit methodology, the potential influence of the earth/sea return current on nearby critical infrastructures is often based on unrealistic or on conservative interference impact studies. The purpose of this paper is to firstly provide a methodology to quantify the expected intermittent duration of the earth return current - in point-to-point bipolar HVDC systems, which arises from their partial-availability or the emergency conditions. Subsequently, the proposed methodology is applied in a realistic dc interference/corrosion study of a critical pipeline system that operates near a HVDC link currently being constructed. In essence, the paper describes a top-down complete approach for HVDC dc interference modelling endeavors in an attempt to avoid conservative and costly mitigation measures concerning third-party critical infrastructures in the nearby vicinity.https://ieeexplore.ieee.org/document/9970329/HVDCDC interferencecorrosiongas pipelinesplanningapproval
spellingShingle Charalambos A. Charalambous
Alexandros I. Nikolaidis
Complete Method to Assess the DC Corrosion Impact on Pipeline Systems During the Planning and Approval Stages of HVDC Systems With Earth Current Return
IEEE Access
HVDC
DC interference
corrosion
gas pipelines
planning
approval
title Complete Method to Assess the DC Corrosion Impact on Pipeline Systems During the Planning and Approval Stages of HVDC Systems With Earth Current Return
title_full Complete Method to Assess the DC Corrosion Impact on Pipeline Systems During the Planning and Approval Stages of HVDC Systems With Earth Current Return
title_fullStr Complete Method to Assess the DC Corrosion Impact on Pipeline Systems During the Planning and Approval Stages of HVDC Systems With Earth Current Return
title_full_unstemmed Complete Method to Assess the DC Corrosion Impact on Pipeline Systems During the Planning and Approval Stages of HVDC Systems With Earth Current Return
title_short Complete Method to Assess the DC Corrosion Impact on Pipeline Systems During the Planning and Approval Stages of HVDC Systems With Earth Current Return
title_sort complete method to assess the dc corrosion impact on pipeline systems during the planning and approval stages of hvdc systems with earth current return
topic HVDC
DC interference
corrosion
gas pipelines
planning
approval
url https://ieeexplore.ieee.org/document/9970329/
work_keys_str_mv AT charalambosacharalambous completemethodtoassessthedccorrosionimpactonpipelinesystemsduringtheplanningandapprovalstagesofhvdcsystemswithearthcurrentreturn
AT alexandrosinikolaidis completemethodtoassessthedccorrosionimpactonpipelinesystemsduringtheplanningandapprovalstagesofhvdcsystemswithearthcurrentreturn