Metallic buried pipelines sharing the same corridor with AC power lines are subjected to AC interference, potentially harmful to personnel and equipment. The inductive coupling depends, among other factors, on the physical characteristics of the soil. This work presents an analysis of the effects of soil resistivity nonuniformities spanning along the length of a corridor. The investigation is performed by assessing several realistic configurations suited to highlight the various mechanisms affecting the phenomenon. The calculations are carried out employing an ad-hoc developed numerical tool, where the network analysis is used to enforce physical constraints on a 2D finite element analysis. The obtained results show that longitudinal nonuniformities in the soil resistivity can significantly affect the induced currents, depending on the particular configuration of the power line under exam.

Popoli A., Sandrolini L., Cristofolini A. (2020). Inductive coupling on metallic pipelines: Effects of a nonuniform soil resistivity along a pipeline-power line corridor. ELECTRIC POWER SYSTEMS RESEARCH, 189, 1-9 [10.1016/j.epsr.2020.106621].

Inductive coupling on metallic pipelines: Effects of a nonuniform soil resistivity along a pipeline-power line corridor

Popoli A.
;
Sandrolini L.;Cristofolini A.
2020

Abstract

Metallic buried pipelines sharing the same corridor with AC power lines are subjected to AC interference, potentially harmful to personnel and equipment. The inductive coupling depends, among other factors, on the physical characteristics of the soil. This work presents an analysis of the effects of soil resistivity nonuniformities spanning along the length of a corridor. The investigation is performed by assessing several realistic configurations suited to highlight the various mechanisms affecting the phenomenon. The calculations are carried out employing an ad-hoc developed numerical tool, where the network analysis is used to enforce physical constraints on a 2D finite element analysis. The obtained results show that longitudinal nonuniformities in the soil resistivity can significantly affect the induced currents, depending on the particular configuration of the power line under exam.
2020
Popoli A., Sandrolini L., Cristofolini A. (2020). Inductive coupling on metallic pipelines: Effects of a nonuniform soil resistivity along a pipeline-power line corridor. ELECTRIC POWER SYSTEMS RESEARCH, 189, 1-9 [10.1016/j.epsr.2020.106621].
Popoli A.; Sandrolini L.; Cristofolini A.
File in questo prodotto:
File Dimensione Formato  
EPSR R1 popoli et al.pdf

Open Access dal 12/08/2022

Descrizione: AAM
Tipo: Postprint
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione - Non commerciale - Non opere derivate (CCBYNCND)
Dimensione 673.43 kB
Formato Adobe PDF
673.43 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/787477
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 10
  • ???jsp.display-item.citation.isi??? 8
social impact