WO2009030584A2 - Verfahren zur auslaufsteuerung einer asynchronmaschine - Google Patents
Verfahren zur auslaufsteuerung einer asynchronmaschine Download PDFInfo
- Publication number
- WO2009030584A2 WO2009030584A2 PCT/EP2008/060588 EP2008060588W WO2009030584A2 WO 2009030584 A2 WO2009030584 A2 WO 2009030584A2 EP 2008060588 W EP2008060588 W EP 2008060588W WO 2009030584 A2 WO2009030584 A2 WO 2009030584A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- asynchronous machine
- braking
- energy
- sto
- value
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
- H02P3/20—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by reversal of phase sequence of connections to the motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
- H02P3/24—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by applying dc to the motor
Definitions
- the invention relates to a method for the outlet control of an asynchronous machine.
- Asynchronous machines are widely used for various drive purposes. When starting an asynchronous machine, it is of interest to limit the starting currents and the starting torque of the asynchronous or to increase slowly with increasing speed of the asynchronous machine. Such a soft start is of interest for various technical applications.
- a soft start can be realized by a dosage of the electrical power supplied to the asynchronous machine. The regulation of the electrical power can be realized for example with a phase control.
- Asynchronous machines can be used in particular for the drive of tools or machines with a high mass moment of inertia.
- such machines may be planing machines, milling machines, circular saws, etc. in the woodworking industry.
- efflux times between 10 seconds and 20 seconds are required.
- the run-down time of the asynchronous machine should not be longer than the run-up time.
- Frequency converters In order to achieve the required braking times, it is often necessary to realize the deceleration process using a frequency converter. Frequency converters, however, consume valuable space and are also expensive to purchase.
- the object of the present invention is to provide a method for the outlet control of an asynchronous machine, which is improved at least insofar as compared to the prior art, that with less technical effort an effective braking of the asynchronous machine is made possible.
- the invention is based on the consideration of realizing the deceleration process in that a large part of the kinetic energy (rotational energy) of the current asynchronous machine is reduced by braking the asynchronous machine in the reverse mode. After the asynchronous machine has been decelerated in reversing mode, the remaining kinetic energy (rotational energy) present is reduced by DC braking of the asynchronous machine.
- the phases are reversed, two of the three phases are interchanged with respect to the normal operation of the asynchronous machine. Such a reversal of the phases ensures that the stator of the asynchronous machine generates a magnetic rotating field. testifies, which has opposite to the current direction of rotation of the rotor opposite direction of rotation.
- the asynchronous machine After the asynchronous machine has been decelerated in reversing mode, it has a residual rotational speed (residual rotational energy) which is dissipated by DC braking. In this case, two of the three phases of the asynchronous machine are subjected to a rectified alternating current.
- Asynchronous machine include the following steps:
- Starting energy (E sta rt) determined and stored.
- a deceleration of the asynchronous machine takes place in reversing mode with a braking energy (E stO p) which corresponds to the starting energy (E sta rt) multiplied by a correction factor ( ⁇ ), wherein the correction factor ( ⁇ ) assumes a value between 0 and 1.
- a further braking of the asynchronous machine after braking in reversing mode is done by DC braking.
- an asynchronous machine can be safely braked in a predetermined time.
- an asynchronous machine that drives parts with high mass moments of inertia can be braked safely.
- DC braking can be stopped after a specified period of time. Termination of DC braking after a specified period of time prevents unnecessarily long DC braking. In particular, the DC braking can be aborted after such a period of time after which the asynchronous machine has very probably come to a complete stop.
- DC braking can be aborted on the basis of the detection of a current increase in the motor current during the DC braking process.
- the detected current increase in the motor current allows a simple detection for the standstill of the asynchronous machine. In this way it can be ensured that the DC braking is stopped only after the complete standstill of the asynchronous machine.
- the asynchronous machine can during startup from standstill to operating speed or a desired
- the asynchronous machine can be connected to the power source via a control unit and a reversing contactor.
- the asynchronous machine can be disconnected from the power supply by the control unit.
- the electrical connection can be switched from the mains contactor to the reversing contactor, then the asynchronous machine can be braked in reversing mode, controlled by the control unit, with a phase-gapped and slowly rising motor current.
- Fig. 1 shows an asynchronous machine with a device for discontinuity control
- the asynchronous machine 101 can be used in particular for driving tools or machines with high mass moments of inertia.
- the asynchronous machine 101 can drive a planing machine, milling cutter or circular saw in the woodworking industry.
- the asynchronous machine 101 is connected during startup via the power contactor 103 and the controller 102 to the power source 105. While the asynchronous machine is accelerated to its operating speed 101 of the asynchronous machine 101 is added electric start energy (E sta rt) gemes ⁇ sen and stored. The measurement and storage of the starting energy (E s tart) is carried out with the aid of the control unit 102. The starting energy (E sta rt) is calculated as the integral of the air-gap power P LS p supplied to the asynchronous machine 101 over the starting time (t sta rt) (see Equation 1).
- Equation 3 represents the calculation of the air gap power (P LSP ), wherein the electrical power (P e i) and the power loss (P v ) at the stator of the asynchronous machine 101 are summed over a network period.
- S p denotes the number of samples per network period.
- the starting energy (E sta rt) can be summed over the number of network periods (L start ) for starting the asynchronous machine 101 (see Equation 4).
- the value determined for the starting energy (E star t) is stored by the control unit 102.
- control unit 102 Before the actual braking of the asynchronous machine 101, this is separated by the control unit 102 from the electric power supply. This can be realized for example by a thyristor, which is controlled by the controller 102. Subsequently, the electrical connection between the control unit 102 and the three-phase current source 104 is switched from the mains contactor 103 to the reversing contactor 105. After switching, the reversing contactor 105 bridges the mains contactor 103.
- FIG. 2 shows the time profiles of the starting energy (E s tart) / the starting current (I s tart) and the phase angle ( ⁇ s tart) as a function of time t.
- the values of the above prior ⁇ sizes are shown in Fig. 2 in arbitrary units against time t.
- Braking current (I DC ) has an increase 205 when the asynchronous machine 101 is at a standstill. On the basis of the increase 205 in the DC braking current (I DC ) applied to the asynchronous machine 101, the standstill of the asynchronous machine 101 can be detected.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
- Control Of Ac Motors In General (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Eletrric Generators (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
- Control Of Multiple Motors (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Paper (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08787143A EP2186187A2 (de) | 2007-09-03 | 2008-08-12 | Verfahren zur auslaufsteuerung einer asynchronmaschine |
BRPI0816358-8A BRPI0816358B1 (pt) | 2007-09-03 | 2008-08-12 | Método para controle de parada de uma máquina assíncrona |
CN2008801052646A CN101796714B (zh) | 2007-09-03 | 2008-08-12 | 异步电机的减速控制方法 |
US12/675,847 US8466640B2 (en) | 2007-09-03 | 2008-08-12 | Method for slowing-down control of an asynchronous machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07017244.0 | 2007-09-03 | ||
EP07017244A EP2031747B1 (de) | 2007-09-03 | 2007-09-03 | Verfahren zur Auslaufsteuerung einer Asynchronmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009030584A2 true WO2009030584A2 (de) | 2009-03-12 |
WO2009030584A3 WO2009030584A3 (de) | 2009-08-27 |
Family
ID=39111453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/060588 WO2009030584A2 (de) | 2007-09-03 | 2008-08-12 | Verfahren zur auslaufsteuerung einer asynchronmaschine |
Country Status (8)
Country | Link |
---|---|
US (1) | US8466640B2 (de) |
EP (2) | EP2031747B1 (de) |
CN (1) | CN101796714B (de) |
AT (1) | ATE504973T1 (de) |
BR (1) | BRPI0816358B1 (de) |
DE (1) | DE502007006888D1 (de) |
ES (1) | ES2360424T3 (de) |
WO (1) | WO2009030584A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2468496C1 (ru) * | 2011-08-08 | 2012-11-27 | Федеральное государственное образовательное учреждение высшего профессионального образования Московский государственный университет печати имени Ивана Фёдорова (МГУП имени Ивана Федорова) | Способ оптимального торможения асинхронного двигателя с короткозамкнутым ротором |
DE102020203623A1 (de) * | 2020-03-20 | 2021-09-23 | Schmidhauser Ag | Schaltung und Verfahren zur Ansteuerung einer elektromechanischen Haltebremse, Frequenzumrichter und System |
US11967917B2 (en) * | 2022-02-23 | 2024-04-23 | Eaton Intelligent Power Limited | Methods of braking motors and motor starters employing the same |
Citations (3)
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DE8707425U1 (de) * | 1987-05-23 | 1987-07-09 | Asea Brown Boveri Ag, 68309 Mannheim | Einrichtung zum Gleichstrombremsen einer Schleifringläufermaschine |
DE4310485A1 (de) * | 1993-03-31 | 1994-10-06 | Kimo Ind Elektronik Gmbh | Verfahren zum Betrieb einer Schaltungsanordnung zur Steuerung bzw. Regelung des Anlaufens, Abbremsens und der Drehzahl eines Drehstrom-Asynchronmotors |
WO2001071902A1 (de) * | 2000-03-23 | 2001-09-27 | Wilhelm Altendorf Gmbh & Co. Kg | Bremsmodul |
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FR2543759B1 (fr) * | 1983-03-30 | 1985-06-14 | Cem Comp Electro Mec | Dispositif de commutation statique traction-freinage pour systeme a vitesse variable a moteurs asynchrones alimentes par commutateur de courant |
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CN2115615U (zh) * | 1992-02-25 | 1992-09-09 | 重庆大学 | 交流异步电动机制动控制装置 |
US6002225A (en) * | 1992-08-20 | 1999-12-14 | Deutsche Thomson-Brandt Gmbh | Method for the control of a motor |
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JP2003189651A (ja) * | 2001-12-20 | 2003-07-04 | Brother Ind Ltd | 直流モータの減速制御装置 |
US6641236B2 (en) * | 2002-03-21 | 2003-11-04 | Frank T. Grudzien | Cabinet with drawer retainer/locking system |
KR100534107B1 (ko) * | 2003-02-14 | 2005-12-08 | 삼성전자주식회사 | 모터전원공급장치 |
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2007
- 2007-09-03 EP EP07017244A patent/EP2031747B1/de active Active
- 2007-09-03 DE DE502007006888T patent/DE502007006888D1/de active Active
- 2007-09-03 AT AT07017244T patent/ATE504973T1/de active
- 2007-09-03 ES ES07017244T patent/ES2360424T3/es active Active
-
2008
- 2008-08-12 WO PCT/EP2008/060588 patent/WO2009030584A2/de active Application Filing
- 2008-08-12 CN CN2008801052646A patent/CN101796714B/zh active Active
- 2008-08-12 US US12/675,847 patent/US8466640B2/en active Active
- 2008-08-12 EP EP08787143A patent/EP2186187A2/de not_active Withdrawn
- 2008-08-12 BR BRPI0816358-8A patent/BRPI0816358B1/pt active IP Right Grant
Patent Citations (3)
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DE8707425U1 (de) * | 1987-05-23 | 1987-07-09 | Asea Brown Boveri Ag, 68309 Mannheim | Einrichtung zum Gleichstrombremsen einer Schleifringläufermaschine |
DE4310485A1 (de) * | 1993-03-31 | 1994-10-06 | Kimo Ind Elektronik Gmbh | Verfahren zum Betrieb einer Schaltungsanordnung zur Steuerung bzw. Regelung des Anlaufens, Abbremsens und der Drehzahl eines Drehstrom-Asynchronmotors |
WO2001071902A1 (de) * | 2000-03-23 | 2001-09-27 | Wilhelm Altendorf Gmbh & Co. Kg | Bremsmodul |
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ANONYMOUS: "Reduced stopping time with a soft starter" LMPFORUM, [Online] 12. September 2005 (2005-09-12), XP002527582 Gefunden im Internet: URL:http://www.lmpforum.com/inforum/Reduced-stopping-time-s-t797.html&pid=2360&mode=threaded> [gefunden am 2009-05-12] * |
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Also Published As
Publication number | Publication date |
---|---|
EP2031747B1 (de) | 2011-04-06 |
EP2186187A2 (de) | 2010-05-19 |
DE502007006888D1 (de) | 2011-05-19 |
US8466640B2 (en) | 2013-06-18 |
ES2360424T3 (es) | 2011-06-03 |
CN101796714B (zh) | 2012-07-18 |
US20100207554A1 (en) | 2010-08-19 |
BRPI0816358A2 (pt) | 2015-02-24 |
CN101796714A (zh) | 2010-08-04 |
EP2031747A1 (de) | 2009-03-04 |
WO2009030584A3 (de) | 2009-08-27 |
ATE504973T1 (de) | 2011-04-15 |
BRPI0816358B1 (pt) | 2023-01-17 |
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