Partial discharge location in power cables using a double ended method based on time triggering with GPS

Faisal Peer Mohamed, Wah Hoon Siew, John Soraghan, Scott Strachan, Jamie McWilliam

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Partial discharge (PD) diagnostics is the most widely used tool to assess the insulation condition of insulated power cables which facilitates informed maintenance planning leading to extended service life of ageing assets. Time domain reflectometry (TDR) using a single ended or double ended approach is the most widely used method for locating PD sources. The success of the single ended method is dependent upon cable network design. However, by monitoring PDs at both ends of the cable, i.e. double-ended PD monitoring, higher accuracy of PD location can be achieved with a higher success rate. The double ended method is not widely used due to its complex system design, time synchronization and communication requirement between measurement units. This paper proposes a double ended PD location system which triggers on the predefined one pulse per second (1PPS) signal obtained from a global positioning systems (GPS) using novel time based triggering logic (TBTL) implemented in field programmable gate arrays (FPGA). This system ignores non-useable (not synchronized) data caused by flywheel 1PPS from GPS receiver due to any short-term loss of satellite signals which eventually reduces the PD location accuracy. Furthermore TBTL also ignores spurious triggering pulses radiated from noise sources within the substation. With the use of a communication link between two ends of the cable provided via mobile broadband together with TBTL, eliminated the acquisition of non-useable(not synchronized) data. Based on laboratory tests and on-site measurements PD location accuracy of less than ± 10 m can be achieved. The system design, laboratory tests and on-site measurements are discussed.
LanguageEnglish
Pages2212-2221
Number of pages10
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Volume20
Issue number6
DOIs
Publication statusPublished - Dec 2013

Fingerprint

Partial discharges
Global positioning system
Cables
Systems analysis
Flywheels
Units of measurement
Monitoring
Service life
Telecommunication links
Field programmable gate arrays (FPGA)
Insulation
Large scale systems
Synchronization
Aging of materials
Satellites
Planning
Communication

Keywords

  • double-ended PD monitoring
  • partial discharge diagnostics
  • time domain reflectometry
  • GPS

Cite this

@article{46989e4fa4974ce298c1d6081bb0a9fc,
title = "Partial discharge location in power cables using a double ended method based on time triggering with GPS",
abstract = "Partial discharge (PD) diagnostics is the most widely used tool to assess the insulation condition of insulated power cables which facilitates informed maintenance planning leading to extended service life of ageing assets. Time domain reflectometry (TDR) using a single ended or double ended approach is the most widely used method for locating PD sources. The success of the single ended method is dependent upon cable network design. However, by monitoring PDs at both ends of the cable, i.e. double-ended PD monitoring, higher accuracy of PD location can be achieved with a higher success rate. The double ended method is not widely used due to its complex system design, time synchronization and communication requirement between measurement units. This paper proposes a double ended PD location system which triggers on the predefined one pulse per second (1PPS) signal obtained from a global positioning systems (GPS) using novel time based triggering logic (TBTL) implemented in field programmable gate arrays (FPGA). This system ignores non-useable (not synchronized) data caused by flywheel 1PPS from GPS receiver due to any short-term loss of satellite signals which eventually reduces the PD location accuracy. Furthermore TBTL also ignores spurious triggering pulses radiated from noise sources within the substation. With the use of a communication link between two ends of the cable provided via mobile broadband together with TBTL, eliminated the acquisition of non-useable(not synchronized) data. Based on laboratory tests and on-site measurements PD location accuracy of less than ± 10 m can be achieved. The system design, laboratory tests and on-site measurements are discussed.",
keywords = "double-ended PD monitoring, partial discharge diagnostics , time domain reflectometry, GPS",
author = "{Peer Mohamed}, Faisal and Siew, {Wah Hoon} and John Soraghan and Scott Strachan and Jamie McWilliam",
year = "2013",
month = "12",
doi = "10.1109/TDEI.2013.6678872",
language = "English",
volume = "20",
pages = "2212--2221",
journal = "IEEE Transactions on Dielectrics and Electrical Insulation",
issn = "1070-9878",
number = "6",

}

TY - JOUR

T1 - Partial discharge location in power cables using a double ended method based on time triggering with GPS

AU - Peer Mohamed, Faisal

AU - Siew, Wah Hoon

AU - Soraghan, John

AU - Strachan, Scott

AU - McWilliam, Jamie

PY - 2013/12

Y1 - 2013/12

N2 - Partial discharge (PD) diagnostics is the most widely used tool to assess the insulation condition of insulated power cables which facilitates informed maintenance planning leading to extended service life of ageing assets. Time domain reflectometry (TDR) using a single ended or double ended approach is the most widely used method for locating PD sources. The success of the single ended method is dependent upon cable network design. However, by monitoring PDs at both ends of the cable, i.e. double-ended PD monitoring, higher accuracy of PD location can be achieved with a higher success rate. The double ended method is not widely used due to its complex system design, time synchronization and communication requirement between measurement units. This paper proposes a double ended PD location system which triggers on the predefined one pulse per second (1PPS) signal obtained from a global positioning systems (GPS) using novel time based triggering logic (TBTL) implemented in field programmable gate arrays (FPGA). This system ignores non-useable (not synchronized) data caused by flywheel 1PPS from GPS receiver due to any short-term loss of satellite signals which eventually reduces the PD location accuracy. Furthermore TBTL also ignores spurious triggering pulses radiated from noise sources within the substation. With the use of a communication link between two ends of the cable provided via mobile broadband together with TBTL, eliminated the acquisition of non-useable(not synchronized) data. Based on laboratory tests and on-site measurements PD location accuracy of less than ± 10 m can be achieved. The system design, laboratory tests and on-site measurements are discussed.

AB - Partial discharge (PD) diagnostics is the most widely used tool to assess the insulation condition of insulated power cables which facilitates informed maintenance planning leading to extended service life of ageing assets. Time domain reflectometry (TDR) using a single ended or double ended approach is the most widely used method for locating PD sources. The success of the single ended method is dependent upon cable network design. However, by monitoring PDs at both ends of the cable, i.e. double-ended PD monitoring, higher accuracy of PD location can be achieved with a higher success rate. The double ended method is not widely used due to its complex system design, time synchronization and communication requirement between measurement units. This paper proposes a double ended PD location system which triggers on the predefined one pulse per second (1PPS) signal obtained from a global positioning systems (GPS) using novel time based triggering logic (TBTL) implemented in field programmable gate arrays (FPGA). This system ignores non-useable (not synchronized) data caused by flywheel 1PPS from GPS receiver due to any short-term loss of satellite signals which eventually reduces the PD location accuracy. Furthermore TBTL also ignores spurious triggering pulses radiated from noise sources within the substation. With the use of a communication link between two ends of the cable provided via mobile broadband together with TBTL, eliminated the acquisition of non-useable(not synchronized) data. Based on laboratory tests and on-site measurements PD location accuracy of less than ± 10 m can be achieved. The system design, laboratory tests and on-site measurements are discussed.

KW - double-ended PD monitoring

KW - partial discharge diagnostics

KW - time domain reflectometry

KW - GPS

UR - http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=94

U2 - 10.1109/TDEI.2013.6678872

DO - 10.1109/TDEI.2013.6678872

M3 - Article

VL - 20

SP - 2212

EP - 2221

JO - IEEE Transactions on Dielectrics and Electrical Insulation

T2 - IEEE Transactions on Dielectrics and Electrical Insulation

JF - IEEE Transactions on Dielectrics and Electrical Insulation

SN - 1070-9878

IS - 6

ER -