JPS5713511A - Plant fault detecting device - Google Patents

Plant fault detecting device

Info

Publication number
JPS5713511A
JPS5713511A JP8664280A JP8664280A JPS5713511A JP S5713511 A JPS5713511 A JP S5713511A JP 8664280 A JP8664280 A JP 8664280A JP 8664280 A JP8664280 A JP 8664280A JP S5713511 A JPS5713511 A JP S5713511A
Authority
JP
Japan
Prior art keywords
signal
extent
variation
value
extractor
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.)
Pending
Application number
JP8664280A
Other languages
Japanese (ja)
Inventor
Yuji Hashimoto
Izumi Kobayashi
Mitsuo Suzuki
Kanji Kato
Michiya Serizawa
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.)
Chugoku Electric Power Co Inc
Chubu Electric Power Co Inc
Hitachi Ltd
Tokyo Electric Power Company Holdings Inc
Original Assignee
Tokyo Electric Power Co Inc
Chugoku Electric Power Co Inc
Chubu Electric Power Co Inc
Hitachi Ltd
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 Tokyo Electric Power Co Inc, Chugoku Electric Power Co Inc, Chubu Electric Power Co Inc, Hitachi Ltd filed Critical Tokyo Electric Power Co Inc
Priority to JP8664280A priority Critical patent/JPS5713511A/en
Publication of JPS5713511A publication Critical patent/JPS5713511A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D3/00—Control of nuclear power plant
    • G21D3/04—Safety arrangements
    • G21D3/06—Safety arrangements responsive to faults within the plant
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To obtain a plant fault detcting device which is excellent in detecting sensitivity, by providing a means for newly taking a mean value of an input signal, in case when the extent of variation of an input signal has exceeded a preset value. CONSTITUTION:An input signal 1 and output signal 10 of an object system 8 are inputted to a mean value operating circuit 2, and a mean value 3 which is its output is stored in a memory element of a signal variation extent extractor 4. The extractor 4 outputs to a comparing and deciding device 6 the extent of variation of an input signal, which is difference between the latest value of the signals 1, 10 and a value which has been stored in the memory element. The deciding device 6 outputs to the extractor 4 an off-signal and an on-signal whe the extent of variation 5 is within a preset value, and when it is not within a present value, respectively. The extractor 4 inputs a new mean value 3 to the memory element only when the on-signal has been received. Also, the extent of variation is inputted to a simulator 7, an estimate 9 of an object system output is derived, a deviation 12 to the signal 10 is obtained by a subtracter 11, and is inputted to a comparing and deciding device 14. In case when the deviarion 12 has exceeded a set point, the deciding device 14 decides that a fault has occurred in the system 8, and display it on an indicator 15.
JP8664280A 1980-06-27 1980-06-27 Plant fault detecting device Pending JPS5713511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8664280A JPS5713511A (en) 1980-06-27 1980-06-27 Plant fault detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8664280A JPS5713511A (en) 1980-06-27 1980-06-27 Plant fault detecting device

Publications (1)

Publication Number Publication Date
JPS5713511A true JPS5713511A (en) 1982-01-23

Family

ID=13892674

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8664280A Pending JPS5713511A (en) 1980-06-27 1980-06-27 Plant fault detecting device

Country Status (1)

Country Link
JP (1) JPS5713511A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635214A (en) * 1983-06-30 1987-01-06 Fujitsu Limited Failure diagnostic processing system
EP0212362A2 (en) * 1985-08-23 1987-03-04 Westinghouse Electric Corporation Reactor power level monitoring system using an alpha-beta tracker
JPH0497932A (en) * 1990-08-16 1992-03-30 Denki Kagaku Kogyo Kk Cement admixture and cement composition
JP2013084251A (en) * 2011-09-19 2013-05-09 Fisher Rosemount Systems Inc Inferential process modeling, quality prediction and fault detection using multi-stage data segregation

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635214A (en) * 1983-06-30 1987-01-06 Fujitsu Limited Failure diagnostic processing system
EP0212362A2 (en) * 1985-08-23 1987-03-04 Westinghouse Electric Corporation Reactor power level monitoring system using an alpha-beta tracker
JPH0497932A (en) * 1990-08-16 1992-03-30 Denki Kagaku Kogyo Kk Cement admixture and cement composition
JPH0625007B2 (en) * 1990-08-16 1994-04-06 電気化学工業株式会社 Cement admixture and cement composition
JP2013084251A (en) * 2011-09-19 2013-05-09 Fisher Rosemount Systems Inc Inferential process modeling, quality prediction and fault detection using multi-stage data segregation
JP2016021257A (en) * 2011-09-19 2016-02-04 フィッシャー−ローズマウント システムズ，インコーポレイテッド Computer implemented method, process model development system, and process monitoring system
US10140253B2 (en) 2011-09-19 2018-11-27 Fisher-Rosemount Systems, Inc. Inferential process modeling, quality prediction and fault detection using multi-stage data segregation

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