WO1998015882A1 - Verfahren und einrichtung zur identifikation bzw. vorausberechnung von prozessparametern eines industriellen zeitvarianten prozesses - Google Patents
Verfahren und einrichtung zur identifikation bzw. vorausberechnung von prozessparametern eines industriellen zeitvarianten prozesses Download PDFInfo
- Publication number
- WO1998015882A1 WO1998015882A1 PCT/DE1997/002297 DE9702297W WO9815882A1 WO 1998015882 A1 WO1998015882 A1 WO 1998015882A1 DE 9702297 W DE9702297 W DE 9702297W WO 9815882 A1 WO9815882 A1 WO 9815882A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- time
- model
- parameters
- invariant
- variant
- Prior art date
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
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
-
- 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
Definitions
- the invention relates to a method and a device for identifying or predicting process parameters of an industrial time-variant process.
- a new rolled strip consists of a new material, or which has a different thickness than the previous band, changes abruptly.
- the object of the invention is to provide a method or a device which enables identified or anticipated process parameters to be quickly adapted to changing operating states of the corresponding process.
- the object is achieved according to the invention by a method or a device for identifying or predicting process parameters of an industrial process, in particular a plant in the basic materials industry, with, in particular, rapidly changing process parameters or disturbance variables acting on the process, the process parameters to be identified being determined by means of of a process model are determined as a function of measured values from the process, and the process model has at least one time-invariant or largely time-invariant process model, which represents a time-averaged image of the process, and at least one time-variant process model, which relates to at least one time constant Disturbance variable or a variation of parameters of the process is coordinated.
- This method has proven to be particularly advantageous in order to identify process parameters of a time-variant process or to determine them with foresight. Disturbances are interpreted as changes in the process parameters and, like the actual changes in the process parameters, are modeled using variable model parameters.
- each significant constant of the process with respect to the variation of the process parameters to be identified is assigned a time-variant model which is matched to the corresponding time constant.
- the process model is able to to follow significant changes in process parameters. This procedure also enables the process model to be followed quickly in the event of rapid changes to the process, for example as a result of faults.
- the time-variant model is matched to a time constant, a change or disturbance variable in the process with respect to the variations in the process parameters to be identified or calculated by on-line adaptation of the time-variant model, the cycle time being the on -line adaptation is advantageously matched to the time constant. It has proven particularly advantageous to design the time-variant process model as a neural network.
- FIG. 1 shows the method according to the invention for identifying or predicting process parameters of an industrial time-variant process
- FIG. 2 shows the method according to the invention for identifying or predicting process parameters of an industrial time-variant process in an alternative
- FIG. 3 shows the method according to the invention for identifying or predicting process parameters of an industrial time-variant process in an alternative embodiment
- FIG. 4 shows the method according to the invention for identifying or predicting process parameters of an industrial time-variant process in an alternative embodiment.
- Process status information or measured values from process x 0 , x 1 # x 2 ..., x n are fed to a model of the process.
- the process state variables or measured values from the process x 0 , x 1 , x 2 ..., x n can be different or the same variables. Furthermore, these variables can be multidimensional, that is, they can include several process state variables.
- the process model has a time-invariant or largely time-invarant basic model 1 of the process, which depicts the industrial process as a long-term average.
- the input and output variables of the time-invariant or largely time-invariant basic model are the variables x 0 and y 0 .
- Reference numerals 2, 3 and 4 designate time-variant models, by means of which correction parameters y 1 ( y 2 , ..., y n are calculated from the input variables x 1 , x 2 ..., x n .
- the time-variant models 2,3 are and 4 matched to different time constants of the process so that they provide correction values Yn Y 2 ⁇ • ⁇ ⁇ Yn for different dynamic parts of the process for correcting the value y 0 , which is provided by the time-invariant or largely time-invariant basic model ⁇ , y / • • •, y n are linked by means of links 5, 6 and 7 with the value y 0 , so that at the output of the last link 7 there is a process parameter y which not only contains the static components of the process, but also the time-variant parts of the process that are models 2,3 and 4 have been taken into account.
- the values y and y 0 , y 1 , y 2 , ..., y n can, like the values x 0; x 1 , x 2 ..., x n multidimensional sizes or sealare. It has proven to be particularly advantageous if y 0 , y 1; y 2 , ..., y n are sealare. If several process parameters y are to be identified, this is advantageously done by using different models, ie for using one model according to FIG. 1 for each process parameter y. In this way it is possible, in particular the time-variant models, to optimize for a process parameter y.
- Multiplications and additions are particularly suitable for linking 5, 6 and 7.
- the time-invariant or largely time-invariant basic model 1 or the time-variant models can be analytical models, neural networks, or hybrid models, i.e. a link between analytical models and neural networks. However, it has proven to be particularly advantageous to design the time-variant models 2, 3 and 4 as neural networks.
- the time-variant partial models 2, 3 and 4 are adapted, in particular on-line, to the real process. This adaptation is not shown in FIG. 1. It has also proven to be advantageous to adapt the time-variant or largely time-invariant basic model to the real process at certain time intervals.
- FIG. 2 shows the method according to the invention for identifying or predicting process parameters of an industrial time-variant process in an alternative embodiment to FIG. 1.
- a process parameter y is made using a time-variant or largely time-variant basic model 8, time-variant models 9 , 10 and 11 and links 12, 13 and 14 are determined.
- the methods from FIG. 1 are used for the time-invariant models 9, 10 and 11, the initial value of the time-invariant or largely time-invariant basic model 8 y 0 and the correction values y ⁇ , y 2 , .. ., y n - ⁇ supplied.
- the time-variant models 9, 10 and 11 are in addition to the Input variables x 1 , x 2 ..., x n a selection of the correction values yo »y ⁇ # y2» • • • • ⁇ Yn- ⁇ as input variables.
- FIG. 3 shows the method according to the invention for identifying or calculating process parameters y of a time-invariant process in an alternative embodiment in FIG. 2.
- a process parameter y is made using a time-invariant or largely time-invariant basic model 15, time-variant models 16, 17, 18 and links 19,20,21 identified.
- the time-invariant models 17 and 18 are not corrected values y ll y 2 , ..., y n-1 , but rather corrected intermediate values y 0 , ⁇ # y ⁇ , 2f • • • # y n - 2 , n - ⁇ fed. Otherwise, that which is stated for FIG. 2 also applies to FIG. 3 and that for FIG. 1 applies to FIG. 2 and 3.
- Process state information or measured values from process x are fed to a time-invariant or a largely time-invariant model 22 of the process. This determines an intermediate value u 0 , which is fed to a time-variant model 23.
- the time-variant model 23 determines one around the one modeled in it dynamic part of the process corrected intermediate value u 1; which in turn is fed to a further time-variant partial model 24. This determines an intermediate value u 2 , corrected by the dynamic part of the process modeled in it.
- the last partial model 25 outputs a value y for the parameter y to be identified, which contains the dynamic parts from the time-variant models 23, 24 and 25 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Feedback Control In General (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19781103T DE19781103B4 (de) | 1996-10-08 | 1997-10-07 | Verfahren und Einrichtung zur Identifikation bzw. Vorausberechnung von Prozeßparametern eines industriellen zeitvarianten Prozesses |
US09/284,324 US6473658B1 (en) | 1996-10-08 | 1997-10-07 | Process and device for identification or pre-calculation of parameters of a time-variant industrial process |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19641431A DE19641431A1 (de) | 1996-10-08 | 1996-10-08 | Verfahren und Einrichtung zur Identifikation bzw. Vorausberechnung von Prozeßparametern eines industriellen zeitvarianten Prozesses |
DE19641431.8 | 1996-10-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998015882A1 true WO1998015882A1 (de) | 1998-04-16 |
Family
ID=7808151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1997/002297 WO1998015882A1 (de) | 1996-10-08 | 1997-10-07 | Verfahren und einrichtung zur identifikation bzw. vorausberechnung von prozessparametern eines industriellen zeitvarianten prozesses |
Country Status (6)
Country | Link |
---|---|
US (1) | US6473658B1 (de) |
KR (1) | KR100499165B1 (de) |
CN (1) | CN1174298C (de) |
DE (2) | DE19641431A1 (de) |
RU (1) | RU2200341C2 (de) |
WO (1) | WO1998015882A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999002282A1 (de) * | 1997-07-07 | 1999-01-21 | Siemens Aktiengesellschaft | Verfahren und einrichtung zur steuerung bzw. voreinstellung eines walzgerüstes |
FR2783292A1 (fr) | 1998-07-28 | 2000-03-17 | Valeo | Embrayage a friction portant le rotor d'une machine electrique, notamment pour vehicule automobile |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8311673B2 (en) * | 1996-05-06 | 2012-11-13 | Rockwell Automation Technologies, Inc. | Method and apparatus for minimizing error in dynamic and steady-state processes for prediction, control, and optimization |
DE19731980A1 (de) * | 1997-07-24 | 1999-01-28 | Siemens Ag | Verfahren zur Steuerung und Voreinstellung eines Walzgerüstes oder einer Walzstraße zum Walzen eines Walzbandes |
US6571134B1 (en) * | 1998-02-18 | 2003-05-27 | Siemens Aktiengesellschaft | Method and device for determining an intermediary profile of a metal strip |
US6553270B1 (en) * | 1999-06-30 | 2003-04-22 | Kimberly-Clark Worldwide, Inc. | Proactive control of a process after the beginning of a destabilizing event |
US6587737B2 (en) * | 2000-09-14 | 2003-07-01 | Sulzer Makert And Technology Ag | Method for the monitoring of a plant |
CN100410825C (zh) * | 2004-04-22 | 2008-08-13 | 横河电机株式会社 | 工厂运转支持系统 |
WO2006007621A2 (de) * | 2004-07-22 | 2006-01-26 | Avl List Gmbh | Verfahren zur untersuchung des verhaltens von komplexen systemen, insbesondere von brennkraftmaschinen |
US7818276B2 (en) | 2006-02-03 | 2010-10-19 | Recherche 2000 Inc. | Intelligent monitoring system and method for building predictive models and detecting anomalies |
DE102007025447A1 (de) * | 2006-10-09 | 2008-04-17 | Siemens Ag | Verfahren zur Steuerung und/oder Regelung eines industriellen Prozesses |
WO2011129805A1 (en) * | 2010-04-12 | 2011-10-20 | Siemens Aktiengesellschaft | Method for computer-aided closed-loop and/or open-loop control of a technical system |
RU2488455C2 (ru) * | 2010-12-07 | 2013-07-27 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский университет "Высшая школа экономики" | Способ прокатки металлической заготовки |
EP2479630A1 (de) | 2011-01-25 | 2012-07-25 | Siemens Aktiengesellschaft | Verfahren zur kollisionsfreien Überführung einer Anlage aus einem Scheinausmodus in einen Betriebsmodus |
EP3324254A1 (de) * | 2016-11-17 | 2018-05-23 | Siemens Aktiengesellschaft | Einrichtung und verfahren zur bestimmung der parameter einer regeleinrichtung |
EP4124398B1 (de) * | 2021-07-27 | 2024-04-10 | Primetals Technologies Austria GmbH | Verfahren zur bestimmung mechanischer eigenschaften eines walzgutes mit hilfe eines hybriden modells |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5043863A (en) * | 1987-03-30 | 1991-08-27 | The Foxboro Company | Multivariable adaptive feedforward controller |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4663703A (en) | 1985-10-02 | 1987-05-05 | Westinghouse Electric Corp. | Predictive model reference adaptive controller |
JPH04308901A (ja) * | 1991-04-05 | 1992-10-30 | Nec Corp | 状態推定器と磁気ディスク装置の位置決め制御回路 |
US5402333A (en) * | 1992-06-15 | 1995-03-28 | E. I. Du Pont De Nemours & Co., Inc. | System and method for improving model product property estimates |
DE4416364B4 (de) | 1993-05-17 | 2004-10-28 | Siemens Ag | Verfahren und Regeleinrichtung zur Regelung eines Prozesses |
JP3370783B2 (ja) * | 1994-06-27 | 2003-01-27 | マツダ株式会社 | 機器の制御装置および制御方法 |
WO1996007126A1 (de) * | 1994-08-29 | 1996-03-07 | Siemens Aktiengesellschaft | Verfahren zur schnellen adaption modellgestützter steuerungen und zugehörige anordnung |
DE19508474A1 (de) * | 1995-03-09 | 1996-09-19 | Siemens Ag | Intelligentes Rechner-Leitsystem |
US5933345A (en) * | 1996-05-06 | 1999-08-03 | Pavilion Technologies, Inc. | Method and apparatus for dynamic and steady state modeling over a desired path between two end points |
-
1996
- 1996-10-08 DE DE19641431A patent/DE19641431A1/de not_active Withdrawn
-
1997
- 1997-10-07 WO PCT/DE1997/002297 patent/WO1998015882A1/de active IP Right Grant
- 1997-10-07 RU RU99109474/09A patent/RU2200341C2/ru not_active IP Right Cessation
- 1997-10-07 US US09/284,324 patent/US6473658B1/en not_active Expired - Fee Related
- 1997-10-07 CN CNB971986428A patent/CN1174298C/zh not_active Expired - Lifetime
- 1997-10-07 DE DE19781103T patent/DE19781103B4/de not_active Expired - Fee Related
- 1997-10-07 KR KR10-1999-7002963A patent/KR100499165B1/ko not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5043863A (en) * | 1987-03-30 | 1991-08-27 | The Foxboro Company | Multivariable adaptive feedforward controller |
Non-Patent Citations (2)
Title |
---|
M.A.FKIRIN: "IDENTIFICATION OF DYNAMIC PROCESSES AT VARIOUS TIME CONSTANTS", CYBERNETICS AND SYSTEMS, vol. 22, no. 3, May 1991 (1991-05-01), USA, pages 349 - 356, XP002052723 * |
SZTIPANOVITS J ET AL: "SYSTEM IDENTIFICATION WITH NEURAL NETWORK CONTROLLED RESONATOR-BANKS", PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON INTELLIGENT CONTROL, ARLINGTON, AUG. 13 -15, 1991, no. -, 13 August 1991 (1991-08-13), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 158 - 163, XP000242515 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999002282A1 (de) * | 1997-07-07 | 1999-01-21 | Siemens Aktiengesellschaft | Verfahren und einrichtung zur steuerung bzw. voreinstellung eines walzgerüstes |
FR2783292A1 (fr) | 1998-07-28 | 2000-03-17 | Valeo | Embrayage a friction portant le rotor d'une machine electrique, notamment pour vehicule automobile |
Also Published As
Publication number | Publication date |
---|---|
KR100499165B1 (ko) | 2005-07-04 |
DE19781103D2 (de) | 1999-09-09 |
DE19781103B4 (de) | 2013-02-21 |
DE19641431A1 (de) | 1998-04-16 |
RU2200341C2 (ru) | 2003-03-10 |
KR20000048928A (ko) | 2000-07-25 |
CN1174298C (zh) | 2004-11-03 |
CN1233331A (zh) | 1999-10-27 |
US6473658B1 (en) | 2002-10-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4338608B4 (de) | Verfahren und Vorrichtung zur Führung eines Prozesses in einem geregelten System | |
WO1998015882A1 (de) | Verfahren und einrichtung zur identifikation bzw. vorausberechnung von prozessparametern eines industriellen zeitvarianten prozesses | |
DE4338615B4 (de) | Verfahren und Vorrichtung zur Führung eines Prozesses in einem geregelten System | |
DE4008510C2 (de) | Regeleinrichtung mit Optimal-Entscheidungseinheit | |
DE19522494C2 (de) | Verfahren zum Walzen eines Metallbandes | |
DE112019001512T5 (de) | EINSPRITZGIEßMASCHINENSYSTEM | |
DE19881711C5 (de) | Verfahren und Einrichtung zur Steuerung einer Hüttentechnischen Anlage | |
DE102016011525B4 (de) | Vorrichtung für maschinelles Lernen und Spulen-Produktionsvorrichtung | |
DE4416317B4 (de) | Verfahren und Regeleinrichtung zur Regelung eines materialverarbeitenden Prozesses | |
DE4338607B4 (de) | Verfahren und Vorrichtung zur Führung eines Prozesses in einem geregelten System | |
DE2256136A1 (de) | Computergesteuertes walzwerk | |
DE4131765A1 (de) | Regelparameter-verbesserungsverfahren fuer industrielle anlagen | |
EP0756219A2 (de) | Verfahren zur Überwachung von Produkteigenschaften und Verfahren zur Regelung eines Herstellungs-prozesses | |
DE102020206114A1 (de) | System und Verfahren zur Steuerung einer aus mehreren Anlagenteilen bestehenden Produktionsanlage, insbesondere einer Produktionsanlage zur Erzeugung von Industriegütern wie metallischem Halbzeug | |
DE19881041B4 (de) | Verfahren zur Steuerung und Voreinstellung eines Stahlwerkes oder von Teilen eines Stahlwerkes | |
DE3832789A1 (de) | Stoerungsfolgevorrichtung | |
AT408728B (de) | Verfahren und einrichtung zur voreinstellung einer walzstrasse | |
DE19641432C2 (de) | Verfahren und Einrichtung zur Vorausberechnung von vorab unbekannten Parametern eines industriellen Prozesses | |
DE102018006035A1 (de) | Verfahren zur automatisierten Erzeugung von Einstellmarametern und zur Prozessüberwachung bei zyklischen Produktionsprozessen | |
EP3642372A1 (de) | Verfahren zum betreiben eines glühofens | |
EP4165480A1 (de) | System, verfahren und computerprogramm zur steuerung einer aus mehreren anlagenteilen bestehenden produktionsanlage, insbesondere einer metallurgischen produktionsanlage zur erzeugung von industriegütern wie metallischem halbzeug und/oder metallischen endprodukten | |
EP1248095A2 (de) | Verfahren zur Ermittlung von Spannungs-Dehnungs-Kurven mittels Splineinterpolation auf Basis charakterischer Punkte und unter dem Einsatz neuronaler Netze | |
DE19980248B4 (de) | Verfahren und Einrichtung zur Bestimmung eines Zwischenprofils eines Metallbandes | |
WO2018024693A1 (de) | Verfahren zum betreiben eines glühofens zum glühen eines metallbandes | |
DE19642919A1 (de) | System zur Berechnung des Ausgangs eines mehrstufigen Verformungsprozesses |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 97198642.8 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN DE KR RU US |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1019997002963 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09284324 Country of ref document: US |
|
REF | Corresponds to |
Ref document number: 19781103 Country of ref document: DE Date of ref document: 19990909 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 19781103 Country of ref document: DE |
|
WWP | Wipo information: published in national office |
Ref document number: 1019997002963 Country of ref document: KR |
|
WWG | Wipo information: grant in national office |
Ref document number: 1019997002963 Country of ref document: KR |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |