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GB1272834A - Control system - Google Patents

Control system

Info

Publication number
GB1272834A
GB1272834A GB26744/69A GB2674469A GB1272834A GB 1272834 A GB1272834 A GB 1272834A GB 26744/69 A GB26744/69 A GB 26744/69A GB 2674469 A GB2674469 A GB 2674469A GB 1272834 A GB1272834 A GB 1272834A
Authority
GB
United Kingdom
Prior art keywords
channels
switches
computer
signals
restorer
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.)
Expired
Application number
GB26744/69A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1272834A publication Critical patent/GB1272834A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/36—Control circuits
    • 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
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
    • 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
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Safety Devices In Control Systems (AREA)
  • Hardware Redundancy (AREA)
  • Feedback Control In General (AREA)
  • Control Of Temperature (AREA)

Abstract

1,272,834. Automatic control systems. WESTINGHOUSE ELECTRIC CORP. May 27, 1969 [June 24, 1968], No.26744/69. Heading G3R. In a "high reliability" control system having at least three parallel channels which perform a common control function on a common input and are connected to means which produces a desired output despite malfunctions in one or more of the individual channels, separate "computer means" determine successively whether each channel is in proper working order and gives an indication if it is not and/or initiates a control action. The invention is shown applied to a system having four channels, one of which is normally switched out by switches 88, 128 but which is switched in by the computer to replace any of the other three channels detected as faulty. Sensors 52 ... 58 in a controlled zone 50 produce signals which are "conditioned" at 62 ... 68 and are connectible by switches 82 ... 88 to a "restorer" 90. This averages those two signals which are closest to each other (of the three which are used) to produce an output, rejecting the third, or the signals may be digital on or off and the output corresponds to the majority. The average signal is compared with a reference at 94 and any error is applied to four controllers 102 ... 108 connectible to a second "restorer" 130 through switches 122 ... 128. The output of this restorer controls the sensed parameter by means 134. The computer 150 periodically and successively examines the signals in the two sets of four channels and if any depart from a predetermined value or range operates the appropriate switches to disconnect the faulty channel and connect the spare, giving an indication that it has done so. The controlled parameter may be temperature, the means 134 comprising a rheostat in a resistance heating circuit, liquid level, 134 then comprising a valve, or a parameter of a nuclear reactor, 134 then being means to position control rods. The system may be used with one having a plurality of restorers, each monitered by the computer, and may include combinations of electrical or fluidic apparatus.
GB26744/69A 1968-06-24 1969-05-27 Control system Expired GB1272834A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73927668A 1968-06-24 1968-06-24

Publications (1)

Publication Number Publication Date
GB1272834A true GB1272834A (en) 1972-05-03

Family

ID=24971581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26744/69A Expired GB1272834A (en) 1968-06-24 1969-05-27 Control system

Country Status (3)

Country Link
DE (1) DE1931296A1 (en)
FR (1) FR2011595A1 (en)
GB (1) GB1272834A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3209718A1 (en) * 1982-03-17 1983-09-29 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Functionally reliable control device
GB2128778A (en) * 1982-10-16 1984-05-02 Yamato Scient Co Ltd A temperature controller
DE3334548A1 (en) * 1983-09-23 1985-04-04 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München METHOD AND DEVICE FOR GUIDING A RAILWAY VEHICLE
GB2170634B (en) * 1984-12-25 1989-05-04 Honda Motor Co Ltd Light control apparatus for a vehicle
FR2907234A1 (en) * 2006-10-13 2008-04-18 Thales Sa Main faulty sensor e.g. inertial sensor, identifying method for e.g. helicopter, involves identifying faulty sensor as unique main sensor when failure is confirmed, and deactivating control units supplied with measurement signals

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2396998A1 (en) * 1977-07-04 1979-02-02 Smiths Industries Ltd REACTION LOOP CONTROLLED
FR2501314A1 (en) * 1981-03-09 1982-09-10 Europ Propulsion ACTIVE REDUNDANT ELECTROMAGNETIC BEARING
DE3511208A1 (en) * 1985-03-28 1986-10-02 AEG-Kanis Turbinenfabrik GmbH, 8500 Nürnberg Circuit arrangement for supplying an actuating element, which is arranged in a control loop, with actuating signals from a first or second regulator
RU2582875C1 (en) * 2015-06-25 2016-04-27 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") Control system for safety of nuclear power plant

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3209718A1 (en) * 1982-03-17 1983-09-29 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Functionally reliable control device
GB2128778A (en) * 1982-10-16 1984-05-02 Yamato Scient Co Ltd A temperature controller
DE3334548A1 (en) * 1983-09-23 1985-04-04 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München METHOD AND DEVICE FOR GUIDING A RAILWAY VEHICLE
GB2170634B (en) * 1984-12-25 1989-05-04 Honda Motor Co Ltd Light control apparatus for a vehicle
FR2907234A1 (en) * 2006-10-13 2008-04-18 Thales Sa Main faulty sensor e.g. inertial sensor, identifying method for e.g. helicopter, involves identifying faulty sensor as unique main sensor when failure is confirmed, and deactivating control units supplied with measurement signals

Also Published As

Publication number Publication date
DE1931296A1 (en) 1970-01-02
FR2011595A1 (en) 1970-03-06

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees