Study on the Numerical Simulation of Coupling Interference Law of AC Transmission Lines to Buried Pipelines
In energy public corridors， the similar routing of AC transmission lines and buried pipelines inevitably causes the pipeline to enter the AC interference zone， leading to pipeline AC corrosion， abnormal cathodic protection systems， and posing a threat to pipeline operation safety.To study the coupli...
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Editorial Department of Materials Protection
2025-01-01
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| Series: | Cailiao Baohu |
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| Online Access: | http://www.mat-pro.com/fileup/1001-1560/PDF/20250114.pdf |
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| author | ZHAO Yalei, CHEN Wei, CHENG Wei, LAN Wei, WU Xiang, MA Liming |
| author_facet | ZHAO Yalei, CHEN Wei, CHENG Wei, LAN Wei, WU Xiang, MA Liming |
| author_sort | ZHAO Yalei, CHEN Wei, CHENG Wei, LAN Wei, WU Xiang, MA Liming |
| collection | DOAJ |
| description | In energy public corridors， the similar routing of AC transmission lines and buried pipelines inevitably causes the pipeline to enter the AC interference zone， leading to pipeline AC corrosion， abnormal cathodic protection systems， and posing a threat to pipeline operation safety.To study the coupling interference law of AC transmission lines on buried pipelines， based on the pipeline equivalent circuit and electromagnetic induction theory， a model of AC interference of transmission lines on buried pipelines was established using CDEGS.The AC interference intensity and safety distance under typical transmission line characteristic parameters，pipeline parameters and laying environment parameters were calculated.Results showed that the AC interference voltage on the pipeline was directly proportional to the AC transmission current.When the parallel length between the 3PE pipeline and the transmission line was less than 20 km， the AC interference voltage was directly proportional to the parallel length.When the distance between the pipelines and transmission lines was small，the phase spacing and average height significantly impacted the AC interference voltage.As the distance increased， the AC interference voltage initially increased and then decreased.Based on extensive numerical simulations， a safety distance determination chart and AC interference voltage curve suitable for on-site engineering were proposed， providing a reference for selecting new pipeline routing and protecting existing pipelines from interference， thereby reducing the risk of AC interference on pipelines. |
| format | Article |
| id | doaj-art-5cc77b373be24cdd8f04c4530829276c |
| institution | DOAJ |
| issn | 1001-1560 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Department of Materials Protection |
| record_format | Article |
| series | Cailiao Baohu |
| spelling | doaj-art-5cc77b373be24cdd8f04c4530829276c2025-08-20T03:04:43ZzhoEditorial Department of Materials ProtectionCailiao Baohu1001-15602025-01-0158111612410.16577/j.issn.1001-1560.2025.0014Study on the Numerical Simulation of Coupling Interference Law of AC Transmission Lines to Buried PipelinesZHAO Yalei, CHEN Wei, CHENG Wei, LAN Wei, WU Xiang, MA Liming0(1.Hefei General Machinery Research Institute Co.， Ltd.， Hefei 230031， China；2.SINOMACH Special Equipment Inspection Co.， Ltd.， Hefei 230031， China；3.Branch of Science and Technology Research Institute of Pipe China Co.， Ltd.， Tianjin 300457， China；4.Ningxia Petrochemical Branch of PetroChina Corporation， Yinchuan 750026， China)In energy public corridors， the similar routing of AC transmission lines and buried pipelines inevitably causes the pipeline to enter the AC interference zone， leading to pipeline AC corrosion， abnormal cathodic protection systems， and posing a threat to pipeline operation safety.To study the coupling interference law of AC transmission lines on buried pipelines， based on the pipeline equivalent circuit and electromagnetic induction theory， a model of AC interference of transmission lines on buried pipelines was established using CDEGS.The AC interference intensity and safety distance under typical transmission line characteristic parameters，pipeline parameters and laying environment parameters were calculated.Results showed that the AC interference voltage on the pipeline was directly proportional to the AC transmission current.When the parallel length between the 3PE pipeline and the transmission line was less than 20 km， the AC interference voltage was directly proportional to the parallel length.When the distance between the pipelines and transmission lines was small，the phase spacing and average height significantly impacted the AC interference voltage.As the distance increased， the AC interference voltage initially increased and then decreased.Based on extensive numerical simulations， a safety distance determination chart and AC interference voltage curve suitable for on-site engineering were proposed， providing a reference for selecting new pipeline routing and protecting existing pipelines from interference， thereby reducing the risk of AC interference on pipelines.http://www.mat-pro.com/fileup/1001-1560/PDF/20250114.pdftransmission lines； buried pipelines； ac interference； interference voltage； safety distance |
| spellingShingle | ZHAO Yalei, CHEN Wei, CHENG Wei, LAN Wei, WU Xiang, MA Liming Study on the Numerical Simulation of Coupling Interference Law of AC Transmission Lines to Buried Pipelines Cailiao Baohu transmission lines； buried pipelines； ac interference； interference voltage； safety distance |
| title | Study on the Numerical Simulation of Coupling Interference Law of AC Transmission Lines to Buried Pipelines |
| title_full | Study on the Numerical Simulation of Coupling Interference Law of AC Transmission Lines to Buried Pipelines |
| title_fullStr | Study on the Numerical Simulation of Coupling Interference Law of AC Transmission Lines to Buried Pipelines |
| title_full_unstemmed | Study on the Numerical Simulation of Coupling Interference Law of AC Transmission Lines to Buried Pipelines |
| title_short | Study on the Numerical Simulation of Coupling Interference Law of AC Transmission Lines to Buried Pipelines |
| title_sort | study on the numerical simulation of coupling interference law of ac transmission lines to buried pipelines |
| topic | transmission lines； buried pipelines； ac interference； interference voltage； safety distance |
| url | http://www.mat-pro.com/fileup/1001-1560/PDF/20250114.pdf |
| work_keys_str_mv | AT zhaoyaleichenweichengweilanweiwuxiangmaliming studyonthenumericalsimulationofcouplinginterferencelawofactransmissionlinestoburiedpipelines |