CA2148611A1 - Expert system for detecting high impedance faults - Google Patents

Expert system for detecting high impedance faults

Info

Publication number
CA2148611A1
CA2148611A1 CA002148611A CA2148611A CA2148611A1 CA 2148611 A1 CA2148611 A1 CA 2148611A1 CA 002148611 A CA002148611 A CA 002148611A CA 2148611 A CA2148611 A CA 2148611A CA 2148611 A1 CA2148611 A1 CA 2148611A1
Authority
CA
Canada
Prior art keywords
expert
high impedance
beliefs
belief
fault
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.)
Granted
Application number
CA002148611A
Other languages
French (fr)
Other versions
CA2148611C (en
Inventor
B. Don Russell
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.)
Texas A&M University System
Original Assignee
B. Don Russell
The Texas A & M University System
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.)
Filing date
Publication date
Application filed by B. Don Russell, The Texas A & M University System filed Critical B. Don Russell
Publication of CA2148611A1 publication Critical patent/CA2148611A1/en
Application granted granted Critical
Publication of CA2148611C publication Critical patent/CA2148611C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2257—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using expert systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H02H1/0015—Using arc detectors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks

Abstract

An expert detection system (10) includes a method and apparatus for detecting high impedance faults occurring on a distribution circuit (12) coupled to an AC power source (14). Based upon an expert's knowledge of high impedance fault behavior and the performance of various fault detection techniques, the expert forms a belief (120) as to whether a high impedance fault has indeed occurred.
The expert's beliefs may be adjusted (130) with an elliptic formula, and then used to weight the status output of each technique. The weighted multiple technique outputs are combined to determine whether a high impedance fault has occurred. The expert's beliefs are calibrated during initial start-up (160) by comparison with a confirmed performance history of the detector using a scoring rule (170). The belief calibration may be included during operation to provide on-line adaption of the expert detector (10) to the changing situations of the distribution circuit (12).
CA002148611A 1993-10-15 1994-09-28 Expert system for detecting high impedance faults Expired - Lifetime CA2148611C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/138,392 1993-10-15
US08/138,392 US5550751A (en) 1993-10-15 1993-10-15 Expert system for detecting high impedance faults
PCT/US1994/011117 WO1995010815A1 (en) 1993-10-15 1994-09-28 Expert system for detecting high impedance faults

Publications (2)

Publication Number Publication Date
CA2148611A1 true CA2148611A1 (en) 1995-04-20
CA2148611C CA2148611C (en) 2005-03-22

Family

ID=22481800

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002148611A Expired - Lifetime CA2148611C (en) 1993-10-15 1994-09-28 Expert system for detecting high impedance faults

Country Status (5)

Country Link
US (1) US5550751A (en)
EP (1) EP0674793A4 (en)
AU (1) AU7924794A (en)
CA (1) CA2148611C (en)
WO (1) WO1995010815A1 (en)

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Also Published As

Publication number Publication date
EP0674793A4 (en) 1995-12-06
US5550751A (en) 1996-08-27
WO1995010815A1 (en) 1995-04-20
AU7924794A (en) 1995-05-04
EP0674793A1 (en) 1995-10-04
CA2148611C (en) 2005-03-22

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MKEX Expiry

Effective date: 20140929