WO2009031790A3 - Method and system for tracing trip-cause in industrial plant - Google Patents

Method and system for tracing trip-cause in industrial plant Download PDF

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Publication number
WO2009031790A3
WO2009031790A3 PCT/KR2008/005139 KR2008005139W WO2009031790A3 WO 2009031790 A3 WO2009031790 A3 WO 2009031790A3 KR 2008005139 W KR2008005139 W KR 2008005139W WO 2009031790 A3 WO2009031790 A3 WO 2009031790A3
Authority
WO
WIPO (PCT)
Prior art keywords
trip
input signal
signal
cause
logic
Prior art date
Application number
PCT/KR2008/005139
Other languages
French (fr)
Other versions
WO2009031790A2 (en
Inventor
Soonsung Lee
Original Assignee
Bnf Technologe Inc
Korea South East Power Co Ltd
Korea South Power Co Ltd
Korea East West Power Co Ltd
Korea Western Powor Co Ltd
Korea Midland Power Co Ltd
Soonsung Lee
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 Bnf Technologe Inc, Korea South East Power Co Ltd, Korea South Power Co Ltd, Korea East West Power Co Ltd, Korea Western Powor Co Ltd, Korea Midland Power Co Ltd, Soonsung Lee filed Critical Bnf Technologe Inc
Publication of WO2009031790A2 publication Critical patent/WO2009031790A2/en
Publication of WO2009031790A3 publication Critical patent/WO2009031790A3/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
    • G05B1/01—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric
    • G05B1/03—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing digital signals
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
    • G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
    • G05B23/0235—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25232—DCS, distributed control system, decentralised control unit

Abstract

Disclosed is a method for tracing an industrial plant trip-cause. In the disclosed system for tra cing a trip-cause, the system including: a trip logic unit including at least one logic operator, which is for receiving a logic input signal and outputting a trip determination signal; a storage unit for storing the logic input signal and internal signals within the trip logic unit; and a tracing unit, when the trip determination signal is determined as a trip value, for tracing back an internal signal changed just before output of the trip value from among signals from an input signal for the trip determination signal to the logic input signal by stages by searching the storage unit, and detecting a trip cause logic input signal, wherein the input signal corresponds to any internal signal having the trip determination signal as an output value, from among the internal signals.
PCT/KR2008/005139 2007-09-03 2008-09-02 Method and system for tracing trip-cause in industrial plant WO2009031790A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070089005A KR100852718B1 (en) 2007-09-03 2007-09-03 Method for tracing trip-cause in industrial plant
KR10-2007-0089005 2007-09-03

Publications (2)

Publication Number Publication Date
WO2009031790A2 WO2009031790A2 (en) 2009-03-12
WO2009031790A3 true WO2009031790A3 (en) 2009-06-04

Family

ID=39878126

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/005139 WO2009031790A2 (en) 2007-09-03 2008-09-02 Method and system for tracing trip-cause in industrial plant

Country Status (2)

Country Link
KR (1) KR100852718B1 (en)
WO (1) WO2009031790A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109519234B (en) * 2018-09-03 2023-07-25 大唐陕西发电有限公司 Protection method for preventing small steam turbine from refusing operation
KR102652289B1 (en) 2023-03-27 2024-03-28 주식회사 더블유이엔지 Network-type industrial plant control system using an integrated database

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61250708A (en) * 1985-04-30 1986-11-07 Mitsubishi Electric Corp Plant diagnostic device
KR980011521A (en) * 1996-07-25 1998-04-30 이호림 Reactor Abnormal State Detection Device and Method using ASIC
JP2003295937A (en) * 2002-03-29 2003-10-17 Hitachi Ltd Plant monitoring device and plant monitoring method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58132808A (en) 1982-01-29 1983-08-08 Mitsubishi Electric Corp Distributed plant diagnostic system
JPS60205707A (en) 1984-03-30 1985-10-17 Mitsubishi Electric Corp Plant monitor device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61250708A (en) * 1985-04-30 1986-11-07 Mitsubishi Electric Corp Plant diagnostic device
KR980011521A (en) * 1996-07-25 1998-04-30 이호림 Reactor Abnormal State Detection Device and Method using ASIC
JP2003295937A (en) * 2002-03-29 2003-10-17 Hitachi Ltd Plant monitoring device and plant monitoring method

Also Published As

Publication number Publication date
WO2009031790A2 (en) 2009-03-12
KR100852718B1 (en) 2008-08-20

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