FR3099830B1 - Method and system for monitoring a cable network, by principal component analysis - Google Patents

Method and system for monitoring a cable network, by principal component analysis Download PDF

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Publication number
FR3099830B1
FR3099830B1 FR1908991A FR1908991A FR3099830B1 FR 3099830 B1 FR3099830 B1 FR 3099830B1 FR 1908991 A FR1908991 A FR 1908991A FR 1908991 A FR1908991 A FR 1908991A FR 3099830 B1 FR3099830 B1 FR 3099830B1
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FR
France
Prior art keywords
cable network
network
multidimensional variable
prediction error
monitoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1908991A
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French (fr)
Other versions
FR3099830A1 (en
Inventor
Nour Taki
Hassen Wafa Ben
Nicolas Ravot
Claude Delpha
Demba Diallo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centre National de la Recherche Scientifique CNRS
Sorbonne Universite
Universite Paris Saclay
CentraleSupelec
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Centre National de la Recherche Scientifique CNRS
Commissariat a lEnergie Atomique CEA
Universite Paris Sud Paris 11
Sorbonne Universite
CentraleSupelec
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Centre National de la Recherche Scientifique CNRS, Commissariat a lEnergie Atomique CEA, Universite Paris Sud Paris 11, Sorbonne Universite, CentraleSupelec, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR1908991A priority Critical patent/FR3099830B1/en
Priority to PCT/EP2020/069687 priority patent/WO2021023478A1/en
Publication of FR3099830A1 publication Critical patent/FR3099830A1/en
Application granted granted Critical
Publication of FR3099830B1 publication Critical patent/FR3099830B1/en
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/11—Locating faults in cables, transmission lines, or networks using pulse reflection methods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/088—Aspects of digital computing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52—Outage or fault management, e.g. fault detection or location

Abstract

Procédé de surveillance d’un réseau de câbles au moyen d’une pluralité de dispositifs de réflectométrie étant chacun connecté en un point du réseau de câbles, le procédé comprenant les étapes de : Acquérir (403), à un instant courant, au moyen de chacun des dispositifs de réflectométrie, une mesure d’un signal de test préalablement injecté dans le réseau et réfléchi sur au moins une discontinuité d’impédance du réseau, chaque mesure étant appelée réflectogramme temporel, l’ensemble des réflectogrammes temporels formant une variable multidimensionnelle, Déterminer (404) au moins une erreur de prédiction entre la variable multidimensionnelle et une projection de la variable multidimensionnelle sur un espace défini par un modèle du réseau de câbles à l’instant initial, le modèle étant déterminé par une analyse en composantes principales, Comparer (405) l’au moins une erreur de prédiction à un seuil de détection de défauts, Sélectionner (406) l’échantillon de la variable multidimensionnelle pour lequel l’erreur de prédiction dépasse le seuil de détection et est maximale, Déterminer (407), pour au moins l’échantillon sélectionné, une contribution relative de chaque dispositif de réflectométrie à cet échantillon. Figure 4A method of monitoring a cable network by means of a plurality of reflectometry devices each being connected to a point of the cable network, the method comprising the steps of: Acquiring (403), at a current time, by means of each of the reflectometry devices, a measurement of a test signal previously injected into the network and reflected on at least one impedance discontinuity of the network, each measurement being called a time reflectogram, the set of time reflectograms forming a multidimensional variable, Determine (404) at least one prediction error between the multidimensional variable and a projection of the multidimensional variable on a space defined by a model of the cable network at the initial time, the model being determined by a principal component analysis, Compare (405) at least one prediction error at a defect detection threshold, Select (406) the sample of the multidimensional variable e for which the prediction error exceeds the detection threshold and is maximum, Determine (407), for at least the selected sample, a relative contribution of each reflectometry device to this sample. Figure 4

FR1908991A 2019-08-06 2019-08-06 Method and system for monitoring a cable network, by principal component analysis Active FR3099830B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1908991A FR3099830B1 (en) 2019-08-06 2019-08-06 Method and system for monitoring a cable network, by principal component analysis
PCT/EP2020/069687 WO2021023478A1 (en) 2019-08-06 2020-07-13 Method and system for monitoring a network of cables, via principal component analysis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1908991A FR3099830B1 (en) 2019-08-06 2019-08-06 Method and system for monitoring a cable network, by principal component analysis
FR1908991 2019-08-06

Publications (2)

Publication Number Publication Date
FR3099830A1 FR3099830A1 (en) 2021-02-12
FR3099830B1 true FR3099830B1 (en) 2021-07-02

Family

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Family Applications (1)

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FR1908991A Active FR3099830B1 (en) 2019-08-06 2019-08-06 Method and system for monitoring a cable network, by principal component analysis

Country Status (2)

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FR (1) FR3099830B1 (en)
WO (1) WO2021023478A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115980281B (en) * 2023-03-16 2023-07-18 深圳奥雅设计股份有限公司 Carbon source detection method and system based on carbon neutralization

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6847267B2 (en) * 2000-03-07 2005-01-25 Board Of Regents, The University Of Texas System Methods for transmitting a waveform having a controllable attenuation and propagation velocity

Also Published As

Publication number Publication date
FR3099830A1 (en) 2021-02-12
WO2021023478A1 (en) 2021-02-11

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