EP1631936A1 - Proceder pour augmenter le rendement d'une installation destinee a executer un processus industriel - Google Patents

Proceder pour augmenter le rendement d'une installation destinee a executer un processus industriel

Info

Publication number
EP1631936A1
EP1631936A1 EP04736391A EP04736391A EP1631936A1 EP 1631936 A1 EP1631936 A1 EP 1631936A1 EP 04736391 A EP04736391 A EP 04736391A EP 04736391 A EP04736391 A EP 04736391A EP 1631936 A1 EP1631936 A1 EP 1631936A1
Authority
EP
European Patent Office
Prior art keywords
performance
control
plant
control loops
process variables
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.)
Withdrawn
Application number
EP04736391A
Other languages
German (de)
English (en)
Inventor
Stefan Haaks
Gerd Michaelis
Christian-Marius Wegner
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.)
Siemens AG
Original Assignee
Siemens AG
Siemens 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33185755&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1631936(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1631936A1 publication Critical patent/EP1631936A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/006—Calibration or setting of parameters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/078—Variable resistance by variable contact area or point
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for DC applications
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for DC systems

Definitions

  • the invention relates to a method for increasing the performance of a plant for carrying out an industrial process.
  • Such an industrial process can be a process with continuous material webs such as in the production of paper, textiles, plastic or metal foils.
  • the performance of the process is determined by the speed of the web, e.g. measured in meters per second.
  • the invention is based on the knowledge that previous measures for increasing the performance in the plants were always based on selective considerations of the plant and therefore generally lack long-term sustainability. Based on the determination of the process variables relevant to the performance of the system and their detection under changing operating conditions, a comprehensive consideration of the influencing factors limiting the performance of the system is ensured. Under changing operating conditions, the operating conditions that occur during regular operation of the system, i.e. e.g. in the case of a paper machine, the operation of the machine with paper of different qualities and types is understood. It is thus avoided that only some aspects of the system, such as the drive system are considered under some special operating conditions, but other factors and operating conditions that are decisive for performance are not taken into account. As a result, not only a short-term, but a sustainable increase in performance is possible.
  • the lowest control reserve of the control loops determines the increase in performance that can be achieved without further measures. This ensures that the development of existing power reserves is checked first and that these reserves are tapped if necessary. This puts the under economic The most achievable increase in performance.
  • control loops with too little control reserve already shows the effort that will be required for further investigations and possibly also for the implementation of measures to increase performance.
  • a decision is made to define a lower increase in output so that further investigations are only necessary for the correspondingly smaller number of control loops.
  • a technical and / or technological control loops with insufficient Rege 'lreser- ve and Development of measures to prepare the respective necessary control reserves by relieving the respective control circuits and / or by replacing components is carried out in subsequent steps Examine in the respective control loops through more powerful components.
  • the method according to the invention is particularly advantageously suitable for increasing the performance in a system for executing a continuous process, in particular a process for producing continuous webs of material, e.g. Paper, textiles, plastic or metal foils, the performance of which is determined by the speed of the web.
  • a process for producing continuous webs of material e.g. Paper, textiles, plastic or metal foils, the performance of which is determined by the speed of the web.
  • 5 shows a machine speed / torque diagram for determining the control reserve in a drive motor and 6 shows a determination of the control reserve in the drive motor of FIG. 5.
  • Appendix 1 shows a system 1 for the production of paper.
  • Appendix 1 includes a wide variety of system parts that are required for the various steps in the paper manufacturing process, e.g. a stock preparation la, a paper machine lb, rewinder / calender lc, slitter ld and cross cutter le.
  • the paper passes through 8 essential parts of the system 1 as a web.
  • the system 1 has a multiplicity of drive components 11, automation components 12 and energy supply components 13 for the drive, the power supply and the control or regulation of the various components in the manufacturing process.
  • a device 2 is used to determine the control reserves in the system 1.
  • the device 2 has a detection unit 3, an evaluation unit 4, an input unit 7 and an output unit 5.
  • the detection unit 3 is used to detect process variables P1 ... P10 of the paper manufacturing process on the system 1.
  • the process variables can come from a wide variety of sources of the process and can be in any, also different, form, for example analog, binary, numerical and / or as a variable physical variable.
  • the evaluation unit 4 serves to determine the control reserves in the control loops of the system 1. For this purpose, a large number of performance characteristics for a large number of components occurring in systems, in particular right of standard components. With the help of the output unit 5, the control reserves can be displayed. Furthermore, the device 2 has an input unit 7 for inputting a desired increase in output in the system 1.
  • the method according to the invention is explained in FIG. 2 using a flow chart.
  • the method is advantageously carried out by a service provider who has the appropriate know-how and technical options for carrying it out.
  • a first step 31 - as explained in detail in FIGS. 3 and 4 - the process variables relevant to the performance of the system are determined.
  • these process variables are recorded under changing operating conditions of the system and in a third step 33 - as explained by way of example in FIGS. 5 and 6 - a minimum control reserve of the control loops of the system is determined on the basis of the recorded process variables.
  • This control reserve can be used to increase the performance of the system without any significant investment.
  • a step 33a it is therefore checked whether an increase in power beyond this lowest control reserve is desired. If this is not the case, the method can be ended in a method step 39b by tapping into the existing power reserves.
  • a further increase in output is desired in the system, such a desired increase in output of the system can be defined in a further method step 34.
  • the control reserves required for the desired increase in power are determined in the control loops of the system, and in a further method step 36 the control loops are determined with a control reserve that is too low for the desired increase in power.
  • technical and / or technological investigations of the control loops can be carried out in a further method step 37 and measures can be developed to produce the respectively required control reserves by relieving the respective control loops and / or by replacing components in the respective control loops with more powerful components become.
  • a technical and / or business assessment can be carried out for these measures, on the basis of which the measures in step 39a are finally implemented.
  • a process variable representing the performance of the plant is determined in a first step.
  • a process variable representing the performance of the plant is determined in a first step.
  • a paper manufacturing plant e.g. the speed of the paper in the system.
  • a core process 6 of the system is defined and all interfaces 21-25 of the core process 6 to the secondary processes 41-45 surrounding it (for example secondary processes for the supply of energy, water and compressed air). determined and examined for correlations with this representative process variable. This can be done by measuring the physical effects (e.g. forces, currents, fields, flow rates, pressures) at these interfaces. The measurement of these physical effects or process variables can be provided by existing and / or additional ones
  • the sub-process running on the paper machine can be defined as the core process. Interfaces to secondary processes with interdependencies with the speed of the paper passing through are then found primarily in the area of material and energy flows, for example in the supply of energy, steam, water, fibers, chemicals and additives as well as the removal of water, condensate and waste heat.
  • the relevant process variables in the area of secondary processes are - as shown in FIG.
  • the energy supply 51 (measured, for example, as power P), the steam supply 52 (measured as volume per unit of time), the water supply 53 (measured as Volume per unit time), the fiber supply 54 (measured as mass per unit time), the chemical supply 55 (measured as mass per unit time), the water discharge 56 (measured as volume per unit time), the condensate discharge 57 (measured as unit volume per unit time) and the Waste heat removal 58 (measured as power P).
  • FIG. 6 shows the torque M of the motor over the speed v of the machine, these two parameters being shown by a linear relationship in accordance with FIG. represents through the line G, are approximated.
  • the maximum power of a motor or converter (whichever is lower) is a hyperbolic curve HK in the speed / load level v / M.
  • the distance RV of this hyperbolic curve HK to the straight line G is a measure of the control reserve and thus of the maximum possible speed increase.
  • control reserve e.g. With regard to the positioning of a vacuum or steam control valve, speed and load of an auxiliary drive, of liquid flows etc., the machine speed can also be plotted instead of over the load over the position of the valve, the speed of the auxiliary drive or the liquid flow, the residence time determined and approximated linear or more complex relationship with the velocity v can be determined.
  • processes to be considered are usually not very dynamic.
  • the dynamic components in the process variables are not of primary interest even for the determination of the control reserves. Rather, the average long-term behavior of the process variables is of greater interest.
  • the process variables are therefore preferably filtered (approx. 2 s) and only sampled approx. Every 5s.
  • An online evaluation of the recorded data with subsequent data compression is preferably carried out for a subsequent offline evaluation of the recorded data.

Landscapes

  • Paper (AREA)
  • Fuses (AREA)
  • General Factory Administration (AREA)
  • Feedback Control In General (AREA)

Abstract

Selon la présente invention, le rendement d'une installation (1) destinée à exécuter un processus industriel peut être augmenté de façon économique et durable par un procédé comprenant les étapes suivantes : détermination de grandeurs de processus (P1 ... P10) significatives du rendement de l'installation (1), enregistrement des grandeurs de processus (P1 ... P10) dans des conditions de service variables de l'installation et définition d'une marge de régulation la plus faible des circuits de régulation de l'installation sur la base des grandeurs de processus enregistrées (P1 ... P10).
EP04736391A 2003-06-10 2004-06-09 Proceder pour augmenter le rendement d'une installation destinee a executer un processus industriel Withdrawn EP1631936A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10326428 2003-06-10
PCT/EP2004/006258 WO2004109571A1 (fr) 2003-06-10 2004-06-09 Proceder pour augmenter le rendement d'une installation destinee a executer un processus industriel

Publications (1)

Publication Number Publication Date
EP1631936A1 true EP1631936A1 (fr) 2006-03-08

Family

ID=33185755

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03023118A Withdrawn EP1487077A3 (fr) 2003-06-10 2003-10-10 Fusible électronique à auto-apprentissage
EP04736391A Withdrawn EP1631936A1 (fr) 2003-06-10 2004-06-09 Proceder pour augmenter le rendement d'une installation destinee a executer un processus industriel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP03023118A Withdrawn EP1487077A3 (fr) 2003-06-10 2003-10-10 Fusible électronique à auto-apprentissage

Country Status (4)

Country Link
EP (2) EP1487077A3 (fr)
BR (1) BRPI0411315A (fr)
CA (1) CA2528778C (fr)
WO (1) WO2004109571A1 (fr)

Cited By (1)

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CN109507468A (zh) * 2018-12-21 2019-03-22 九州能源有限公司 一种基于关联特征的汇流箱支路电流检测方法及系统

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US7412842B2 (en) 2004-04-27 2008-08-19 Emerson Climate Technologies, Inc. Compressor diagnostic and protection system
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DE102006025605A1 (de) 2006-05-24 2007-11-29 Friedrich Lütze Gmbh & Co. Kg Vorrichtung zum selbsttätigen Abschalten oder Schalten eines elektrischen Verbrauchers
US8590325B2 (en) 2006-07-19 2013-11-26 Emerson Climate Technologies, Inc. Protection and diagnostic module for a refrigeration system
US20080216494A1 (en) 2006-09-07 2008-09-11 Pham Hung M Compressor data module
AT504659B1 (de) * 2006-12-22 2008-07-15 Moeller Gebaeudeautomation Gmb Elektrische installationsanordnung und verfahren zum betrieb einer elektrischen installationsanordnung
AT504528B1 (de) * 2007-02-16 2008-06-15 Siemens Ag Oesterreich Elektronische sicherung für eine stromversorgung
DK2012404T3 (da) * 2007-07-03 2013-12-02 Silver Stone Technology Co Ltd Selektiv, uafhængig overbelastnings- og gruppeoverbelastningsbeskyttelseskredsløb til effektforsyning
US20090037142A1 (en) 2007-07-30 2009-02-05 Lawrence Kates Portable method and apparatus for monitoring refrigerant-cycle systems
US8393169B2 (en) 2007-09-19 2013-03-12 Emerson Climate Technologies, Inc. Refrigeration monitoring system and method
US9140728B2 (en) 2007-11-02 2015-09-22 Emerson Climate Technologies, Inc. Compressor sensor module
EP2149954B1 (fr) * 2008-07-31 2018-09-05 ABB Schweiz AG Module d'interface pour la communication avec un dispositif électronique ou électromécanique d'une unité de coupure de moyenne tension
DE102008039450A1 (de) * 2008-08-25 2010-03-04 Kernkraftwerke Lippe-Ems Gmbh Verfahren zur Erkennung des Betriebszustands eines Elektrogeräts, insbesondere von Elektrowärmegeräten, und zur Freischaltung des Elektrogeräts in nichtbestimmungsgemäßen Betriebszuständen
FR2964505B1 (fr) * 2010-09-06 2017-05-19 Ece Systeme de protection en courant d'au moins une ligne d'alimentation d'un reseau a courant continu a haute tension.
EP2681497A4 (fr) 2011-02-28 2017-05-31 Emerson Electric Co. Solutions de contrôle et de diagnostic d'un système hvac destinées à des habitations
US8964338B2 (en) 2012-01-11 2015-02-24 Emerson Climate Technologies, Inc. System and method for compressor motor protection
US9310439B2 (en) 2012-09-25 2016-04-12 Emerson Climate Technologies, Inc. Compressor having a control and diagnostic module
DE102012023459B3 (de) * 2012-11-30 2014-05-15 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zur Detektion von Lichtbögen in einem Kraftfahrzeug-Bordnetz
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US9551504B2 (en) 2013-03-15 2017-01-24 Emerson Electric Co. HVAC system remote monitoring and diagnosis
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CN112290514A (zh) * 2020-10-30 2021-01-29 珠海迈巨微电子有限责任公司 用于电流和/或电压过载保护的装置及集成电路装置

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Also Published As

Publication number Publication date
EP1487077A3 (fr) 2005-04-20
CA2528778A1 (fr) 2004-12-16
EP1487077A2 (fr) 2004-12-15
WO2004109571A1 (fr) 2004-12-16
CA2528778C (fr) 2014-04-01
BRPI0411315A (pt) 2006-07-18

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