DE69917169D1 - Method and device for the active compensation of periodic disturbances during hot or cold rolling - Google Patents

Method and device for the active compensation of periodic disturbances during hot or cold rolling

Info

Publication number
DE69917169D1
DE69917169D1 DE69917169T DE69917169T DE69917169D1 DE 69917169 D1 DE69917169 D1 DE 69917169D1 DE 69917169 T DE69917169 T DE 69917169T DE 69917169 T DE69917169 T DE 69917169T DE 69917169 D1 DE69917169 D1 DE 69917169D1
Authority
DE
Germany
Prior art keywords
variable
during hot
cold rolling
controlled system
active compensation
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.)
Revoked
Application number
DE69917169T
Other languages
German (de)
Other versions
DE69917169T2 (en
Inventor
Andreas Kugi
Helge Frank
Karl Aistleitner
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3518720&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69917169(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Application granted granted Critical
Publication of DE69917169D1 publication Critical patent/DE69917169D1/en
Publication of DE69917169T2 publication Critical patent/DE69917169T2/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/66—Roll eccentricity compensation systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Steroid Compounds (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

In a method and a corresponding device for the active compensation of periodic disturbances of known frequency during hot or cold rolling, such as roll eccentricities, by means of a control system, with the aid of a linear dynamic controller (2) which comprises a model (Pu) that describes one part of the dynamic behaviour of the controlled system (1), an output variable (y) is determined from an input variable (u) on the basis of a reference variable (r), and a compensation signal (uLMS) is generated on the basis of said output variable and a measured output variable (y) of the controlled system (1) and is impressed on the input variable (u) fed to the controlled system (1). As a result, the tracking control is decoupled from the disturbance control, and the controller according to the invention can therefore be inserted into existing control loops for the thickness of the rolling material and/or for the position of the rolls and/or for the rolling force and/or for the roll bending. The compensation signal is generated without prior identification of the eccentricity, which thus permits a more rapid correction of the disturbances. <IMAGE>
DE69917169T 1998-10-08 1999-10-07 Method and device for active compensation of periodic disturbances during hot or cold rolling Revoked DE69917169T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0168298A AT408035B (en) 1998-10-08 1998-10-08 METHOD FOR ACTIVE COMPENSATION OF PERIODIC DISORDERS
AT168298 1998-10-08

Publications (2)

Publication Number Publication Date
DE69917169D1 true DE69917169D1 (en) 2004-06-17
DE69917169T2 DE69917169T2 (en) 2005-07-07

Family

ID=3518720

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69917169T Revoked DE69917169T2 (en) 1998-10-08 1999-10-07 Method and device for active compensation of periodic disturbances during hot or cold rolling

Country Status (3)

Country Link
EP (1) EP0992295B1 (en)
AT (2) AT408035B (en)
DE (1) DE69917169T2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT502348B1 (en) * 2005-08-17 2008-09-15 Voest Alpine Ind Anlagen CONTROL METHOD AND REGULATOR FOR A MECHANICAL-HYDRAULIC SYSTEM WITH A MECHANICAL FREEDOM DEGREE PER HYDRAULIC ACTUATOR
DE102005053489C5 (en) * 2005-11-09 2008-11-06 Siemens Ag Regulatory system and regulatory procedure for an industrial facility
DE102007022241A1 (en) 2007-05-09 2008-11-27 Voith Patent Gmbh Method and device for compensation of periodic torque fluctuations
CN104923572B (en) * 2015-06-25 2017-01-11 中色科技股份有限公司 Eccentricity compensation method for cold rolling mill upstream rolling mill roll
CN114643287B (en) * 2022-05-23 2022-08-02 东北大学 Bending roller force output control method based on plate shape closed loop regulating quantity

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1527671A1 (en) * 1966-09-09 1973-08-16 Licentia Gmbh PROCESS FOR STRIP THICKNESS CONTROL IN COLD ROLLING MILLS
US3618348A (en) * 1968-05-21 1971-11-09 Nippon Kokan Kk Method of controlling rolling of metal strips
DE2061695C3 (en) * 1970-12-15 1979-12-20 Vsesojuznyj Nautschno-Issledovatelskij I Proektno-Konstruktorskij Institut Metallurgitscheskogo Maschino-Stroenija Vniimetmasch, Moskau Device for strip thickness control for a cold rolling mill
JPS595364B2 (en) * 1977-01-07 1984-02-04 株式会社日立製作所 Tension control method
EP0170016B1 (en) * 1984-07-05 1988-12-07 Siemens Aktiengesellschaft Method to compensate the influence of roll excentricities
DE3935434A1 (en) * 1989-10-25 1991-05-02 Schloemann Siemag Ag METHOD FOR COMPENSATING DISTURBANCES CAUSED BY ROLLER Eccentricities
JP2583657B2 (en) * 1990-10-17 1997-02-19 新日本製鐵株式会社 Thickness deviation disturbance rejection control method
DE4105321A1 (en) * 1991-02-20 1992-08-27 Siemens Ag CONTROL OF A HOT AND / OR COLD ROLLING PROCESS
JPH09174128A (en) * 1995-12-26 1997-07-08 Kawasaki Steel Corp Method for controlling shape of rolled stock
JP3071690B2 (en) * 1996-04-22 2000-07-31 川崎製鉄株式会社 Looper control device for continuous rolling mill

Also Published As

Publication number Publication date
ATA168298A (en) 2000-12-15
DE69917169T2 (en) 2005-07-07
EP0992295B1 (en) 2004-05-12
ATE266483T1 (en) 2004-05-15
AT408035B (en) 2001-08-27
EP0992295A3 (en) 2002-12-18
EP0992295A2 (en) 2000-04-12

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation
8327 Change in the person/name/address of the patent owner

Owner name: SIEMENS VAI METALS TECHNOLOGIES GMBH, LINZ, AT