WO2001011748A1 - Störungsüberwachung einer durch einen elektrischen motor angetriebenen arbeitsmaschine - Google Patents
Störungsüberwachung einer durch einen elektrischen motor angetriebenen arbeitsmaschine Download PDFInfo
- Publication number
- WO2001011748A1 WO2001011748A1 PCT/EP2000/006676 EP0006676W WO0111748A1 WO 2001011748 A1 WO2001011748 A1 WO 2001011748A1 EP 0006676 W EP0006676 W EP 0006676W WO 0111748 A1 WO0111748 A1 WO 0111748A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- operating
- fault monitoring
- learning function
- values
- motor
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0209—Rotational speed
-
- 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
- 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
- H02H7/08—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 for dynamo-electric motors
- H02H7/0833—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 for dynamo-electric motors for electric motors with control arrangements
Definitions
- the invention relates to a device for fault monitoring of a machine driven by an electric motor with variable speed, the motor being switched off when a fault occurs, and to a method for fault monitoring.
- impermissible operating states can occur due to system malfunctions. This can, for example, lead to a malfunction of the system due to a broken pipe, incorrect operation of fittings, an insufficient delivery rate or the like. Among other things, this can be idling, dry running or falling below a specified minimum delivery rate.
- the invention is based on the problem of ensuring reliable fault monitoring for driven machines driven by variable-speed motors and systems or systems supplied by them.
- fault monitoring is provided in that a control device acts on the electric motor at variable speed, which, with the aid of a previous learning function, detects operating values which are used for fault monitoring and in the event of a fault registered by comparison, the motor is switched off.
- a motor fed by a frequency converter can be used as the drive.
- the fault monitoring according to the invention is preferably used for a conveyor device for a fluid driven by an electric motor and / or a system supplied by the conveyor device.
- the method for operating the device according to the invention provides that before activation of the fault monitoring, the control device runs a learning function in which all possible operating states for the engine, the working machine and / or for a system supplied by the working machine are run through, during the learning function detected operating values of the engine in their assignment to that driven by the engine
- Machine and / or the system stored, held and for Fault monitoring can be used.
- the learning function can take place within a system specific to the use of the conveyor.
- the device for fault monitoring is activated. This carries out either a constant or periodic comparison of the operating state with the operating values recorded during the learning function.
- the data of the operating states can be recorded and stored in various forms: they can be recorded and saved as analog or digital values, as one or more curves, diagrams or in the form of tables.
- Use fault monitoring for dry running protection and to protect against falling below a specified minimum delivery rate can also be used with other machines as protection against impermissible operating states. For example, falling below a specified minimum load can be prevented.
- a learning process in a closed-off conveyor system that is to say with a zero delivery rate, also known as operation against a closed slide valve
- no amount is delivered by a working machine in the form of a pump.
- it is registered which power is delivered from the drive motor to the working machine.
- the speed ranges run through during the learning process are recorded and saved with the corresponding power outputs.
- the motor which can be regulated in its speed, travels with the connected working machine in a speed range which ranges between zero speed or zero load and / or up to a predetermined maximum speed or a predetermined load limit of the engine.
- the control device determines the speed values and the power values delivered to the connected working machine. These values are recorded, assigned and saved.
- the control device which can be an independent component, part of a motor or part of an electrical frequency converter, constantly compares the values of the motor during operation.
- the fault monitoring activated after the learning process uses the constantly recorded motor values and compares them with the values stored during the learning process. The fault monitoring then reacts when the values determined in the learning process are reached or fallen below.
- the learning process can be done in the simplest way, e.g. B. during the installation of such a machine connected to the engine in a system or even before delivery to a manufacturer, be passed through at short notice.
- the speed and power values recorded in the process which are stored in the form of curves, diagrams, tables or the like, are then available for fault monitoring during later operation. Complex sensors and their corresponding cabling are therefore no longer necessary.
- the figure shows the function of a learning function in the manner of a flow chart. For the sake of clarity, the data processing elements have not been shown.
- a control device influencing the engine records the operating values of the machine.
- the control device registers whether the system is in an operating state that corresponds to a limit state.
- the control values required for the respective system are specified by the manufacturer or entered into the control device during commissioning.
- the limit state is also entered or specified, which will later be recorded in a system. In fluid transport systems in which a regulated pump is used, pump operation against a closed slide valve on the pressure side represents such a limit state.
- the learning function is terminated.
- the learning function is automatically activated when a limit state is present.
- an internal counter is reset and it is determined whether the speed of the motor is equal to or less than a predetermined maximum speed. Or whether the operating value to be monitored is equal to or less than a maximum operating value.
- the operating value can be, for example, an output to be monitored. To rule out the destruction of a machine to be monitored, a maximum performance value must not be exceeded even with the learning function.
- the learning function is ended.
- a setpoint is set.
- the target value results from an initial value to which the product is added, which is derived from the multiplication of an interval value with the respective counter value.
- a setpoint or operating value determined in this way is saved.
- the speed is shown in the drawing as an example for a setpoint.
- the set speed used as an example in the flowchart is composed of an initial speed to which the product of a speed interval multiplied by a counter value is added.
- An operating value can also be used instead of the speed. Such operating values are a function of the speed.
- a loop function is processed in which the counter value is increased by one value in each case. This process continues until the determined values correspond to the respective maximum value.
- the learning function ends when it is reached. With the help of the last value determined in the learning function, there is a setpoint or operating value for the respective system, which can be used to reliably monitor faults.
- Speed values or the operating states different results can occur. It must therefore be checked in individual cases whether a learning function can only be carried out with speed values, only with operating values or with both values as setpoints.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Multiple Motors (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50012135T DE50012135D1 (de) | 1999-08-04 | 2000-07-13 | Störungsüberwachung einer durch einen elektrischen motor angetriebenen arbeitsmaschine |
EP00954490A EP1198871B1 (de) | 1999-08-04 | 2000-07-13 | Störungsüberwachung einer durch einen elektrischen motor angetriebenen arbeitsmaschine |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19936023.5 | 1999-08-04 | ||
DE19936023 | 1999-08-04 | ||
DE10017861.8 | 2000-04-11 | ||
DE10017861A DE10017861A1 (de) | 1999-08-04 | 2000-04-11 | Störungsüberwachung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001011748A1 true WO2001011748A1 (de) | 2001-02-15 |
Family
ID=26005261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/006676 WO2001011748A1 (de) | 1999-08-04 | 2000-07-13 | Störungsüberwachung einer durch einen elektrischen motor angetriebenen arbeitsmaschine |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1198871B1 (de) |
AT (1) | ATE316705T1 (de) |
CZ (1) | CZ2002425A3 (de) |
DE (1) | DE50012135D1 (de) |
DK (1) | DK1198871T3 (de) |
ES (1) | ES2256029T3 (de) |
PT (1) | PT1198871E (de) |
WO (1) | WO2001011748A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2145112B2 (de) † | 2007-05-12 | 2022-02-16 | KSB SE & Co. KGaA | Einrichtung und verfahren zur störungsüberwachung |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8469675B2 (en) | 2004-08-26 | 2013-06-25 | Pentair Water Pool And Spa, Inc. | Priming protection |
EP4361445A1 (de) | 2022-10-28 | 2024-05-01 | Siemens Aktiengesellschaft | Verfahren zur steuerung und/oder überwachung eines betriebs eines pumpensystems |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4518318A (en) * | 1983-07-07 | 1985-05-21 | Grundfos A/S | Pumping sets |
US4703387A (en) * | 1986-05-22 | 1987-10-27 | Franklin Electric Co., Inc. | Electric motor underload protection system |
NL8801918A (nl) * | 1988-08-02 | 1990-03-01 | Shell Int Research | Methode en inrichting voor het meten van het differentiele fluidumuitgangsvermogen van een pomp. |
DK171384B1 (da) * | 1994-09-14 | 1996-10-07 | Svanehoej International A S | Fremgangsmåde til at kontrollere og styre en deep-well pumpe |
DE19628054A1 (de) * | 1995-07-14 | 1997-01-16 | Przed En Ct Sp Z O O | System der selbsttätigen Sicherung des Motors von Umlauf- und Zirkulationspumpen |
WO1998004835A1 (de) * | 1996-07-29 | 1998-02-05 | Gebr. Becker Gmbh & Co. | Verfahren zur regelung eines aggregats und frequenzumrichter |
WO1999061964A1 (de) * | 1998-05-22 | 1999-12-02 | Rudair Ag | Verfahren zur kalibrierung der drehzahlregelung eines elektromotors zum antrieb einer pumpe |
-
2000
- 2000-07-13 PT PT00954490T patent/PT1198871E/pt unknown
- 2000-07-13 EP EP00954490A patent/EP1198871B1/de not_active Expired - Lifetime
- 2000-07-13 DE DE50012135T patent/DE50012135D1/de not_active Expired - Lifetime
- 2000-07-13 DK DK00954490T patent/DK1198871T3/da active
- 2000-07-13 ES ES00954490T patent/ES2256029T3/es not_active Expired - Lifetime
- 2000-07-13 AT AT00954490T patent/ATE316705T1/de active
- 2000-07-13 WO PCT/EP2000/006676 patent/WO2001011748A1/de active IP Right Grant
- 2000-07-13 CZ CZ2002425A patent/CZ2002425A3/cs unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4518318A (en) * | 1983-07-07 | 1985-05-21 | Grundfos A/S | Pumping sets |
US4703387A (en) * | 1986-05-22 | 1987-10-27 | Franklin Electric Co., Inc. | Electric motor underload protection system |
NL8801918A (nl) * | 1988-08-02 | 1990-03-01 | Shell Int Research | Methode en inrichting voor het meten van het differentiele fluidumuitgangsvermogen van een pomp. |
DK171384B1 (da) * | 1994-09-14 | 1996-10-07 | Svanehoej International A S | Fremgangsmåde til at kontrollere og styre en deep-well pumpe |
DE19628054A1 (de) * | 1995-07-14 | 1997-01-16 | Przed En Ct Sp Z O O | System der selbsttätigen Sicherung des Motors von Umlauf- und Zirkulationspumpen |
WO1998004835A1 (de) * | 1996-07-29 | 1998-02-05 | Gebr. Becker Gmbh & Co. | Verfahren zur regelung eines aggregats und frequenzumrichter |
WO1999061964A1 (de) * | 1998-05-22 | 1999-12-02 | Rudair Ag | Verfahren zur kalibrierung der drehzahlregelung eines elektromotors zum antrieb einer pumpe |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Section Ch Week 199622, Derwent World Patents Index; Class H01, AN 1996-210687, XP002152300 * |
DATABASE WPI Section PQ Week 9012, Derwent World Patents Index; Class Q56, AN 1990-088590, XP002152301 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2145112B2 (de) † | 2007-05-12 | 2022-02-16 | KSB SE & Co. KGaA | Einrichtung und verfahren zur störungsüberwachung |
Also Published As
Publication number | Publication date |
---|---|
DK1198871T3 (da) | 2006-05-22 |
EP1198871B1 (de) | 2006-01-25 |
ATE316705T1 (de) | 2006-02-15 |
CZ2002425A3 (cs) | 2002-06-12 |
EP1198871A1 (de) | 2002-04-24 |
DE50012135D1 (de) | 2006-04-13 |
PT1198871E (pt) | 2006-06-30 |
ES2256029T3 (es) | 2006-07-16 |
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