Comparison of Screening Configurations for the Mitigation of Voltages and Currents Induced on Pipelines by HVAC Power Lines

In this paper, a strategy for reducing the electromagnetic interferences induced by power lines on metallic pipelines is proposed and numerically investigated. The study considers a set of steel conductors interposed between the power line and the pipeline. Different shapes of conductor cross sectio...

Full description

Bibliographic Details
Main Authors:	Arturo Popoli, Leonardo Sandrolini, Andrea Cristofolini
Format:	Article
Language:	English
Published:	MDPI AG 2021-06-01
Series:	Energies
Subjects:	AC interference metallic pipelines mitigation screening corrosion finite element analysis
Online Access:	https://www.mdpi.com/1996-1073/14/13/3855

id	doaj-b87d609b359848f9921de660b5ae7a08
record_format	Article
spelling	doaj-b87d609b359848f9921de660b5ae7a082021-07-15T15:33:12ZengMDPI AGEnergies1996-10732021-06-01143855385510.3390/en14133855Comparison of Screening Configurations for the Mitigation of Voltages and Currents Induced on Pipelines by HVAC Power LinesArturo Popoli0Leonardo Sandrolini1Andrea Cristofolini2Department of Electrical, Electronic and Information Engineering “Guglielmo Marconi”, University of Bologna, 40136 Bologna, ItalyDepartment of Electrical, Electronic and Information Engineering “Guglielmo Marconi”, University of Bologna, 40136 Bologna, ItalyDepartment of Electrical, Electronic and Information Engineering “Guglielmo Marconi”, University of Bologna, 40136 Bologna, ItalyIn this paper, a strategy for reducing the electromagnetic interferences induced by power lines on metallic pipelines is proposed and numerically investigated. The study considers a set of steel conductors interposed between the power line and the pipeline. Different shapes of conductor cross sections and different magnetic permeabilities are considered, to identify the solution exhibiting the greatest mitigation efficiency for the same amount of material. The investigation is carried out by means of a quasi-3D finite element analysis. Results show that the main mechanism responsible for the mitigation is constituted by the currents induced in the screening conductors by the power line. Hence, a high magnetic permeability can have a detrimental effect since it reduces the skin depth to values below the size of the screening conductor. In this case, a reduction of the screening current and in the mitigation efficiency is observed. Nevertheless, the study shows that the use of strip-shaped screening conductors allows the employment of cheaper magnetic materials without compromising the mitigation efficacy of the screening conductors.https://www.mdpi.com/1996-1073/14/13/3855AC interferencemetallic pipelinesmitigationscreeningcorrosionfinite element analysis
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Arturo Popoli Leonardo Sandrolini Andrea Cristofolini
spellingShingle	Arturo Popoli Leonardo Sandrolini Andrea Cristofolini Comparison of Screening Configurations for the Mitigation of Voltages and Currents Induced on Pipelines by HVAC Power Lines Energies AC interference metallic pipelines mitigation screening corrosion finite element analysis
author_facet	Arturo Popoli Leonardo Sandrolini Andrea Cristofolini
author_sort	Arturo Popoli
title	Comparison of Screening Configurations for the Mitigation of Voltages and Currents Induced on Pipelines by HVAC Power Lines
title_short	Comparison of Screening Configurations for the Mitigation of Voltages and Currents Induced on Pipelines by HVAC Power Lines
title_full	Comparison of Screening Configurations for the Mitigation of Voltages and Currents Induced on Pipelines by HVAC Power Lines
title_fullStr	Comparison of Screening Configurations for the Mitigation of Voltages and Currents Induced on Pipelines by HVAC Power Lines
title_full_unstemmed	Comparison of Screening Configurations for the Mitigation of Voltages and Currents Induced on Pipelines by HVAC Power Lines
title_sort	comparison of screening configurations for the mitigation of voltages and currents induced on pipelines by hvac power lines
publisher	MDPI AG
series	Energies
issn	1996-1073
publishDate	2021-06-01
description	In this paper, a strategy for reducing the electromagnetic interferences induced by power lines on metallic pipelines is proposed and numerically investigated. The study considers a set of steel conductors interposed between the power line and the pipeline. Different shapes of conductor cross sections and different magnetic permeabilities are considered, to identify the solution exhibiting the greatest mitigation efficiency for the same amount of material. The investigation is carried out by means of a quasi-3D finite element analysis. Results show that the main mechanism responsible for the mitigation is constituted by the currents induced in the screening conductors by the power line. Hence, a high magnetic permeability can have a detrimental effect since it reduces the skin depth to values below the size of the screening conductor. In this case, a reduction of the screening current and in the mitigation efficiency is observed. Nevertheless, the study shows that the use of strip-shaped screening conductors allows the employment of cheaper magnetic materials without compromising the mitigation efficacy of the screening conductors.
topic	AC interference metallic pipelines mitigation screening corrosion finite element analysis
url	https://www.mdpi.com/1996-1073/14/13/3855
work_keys_str_mv	AT arturopopoli comparisonofscreeningconfigurationsforthemitigationofvoltagesandcurrentsinducedonpipelinesbyhvacpowerlines AT leonardosandrolini comparisonofscreeningconfigurationsforthemitigationofvoltagesandcurrentsinducedonpipelinesbyhvacpowerlines AT andreacristofolini comparisonofscreeningconfigurationsforthemitigationofvoltagesandcurrentsinducedonpipelinesbyhvacpowerlines
_version_	1721299704264785920

Comparison of Screening Configurations for the Mitigation of Voltages and Currents Induced on Pipelines by HVAC Power Lines

Similar Items