WO2004031778A2 - Mesure et commande de la vitesse de rotation d'un moteur asynchrone monophase et d'un moteur universel - Google Patents

Mesure et commande de la vitesse de rotation d'un moteur asynchrone monophase et d'un moteur universel Download PDF

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Publication number
WO2004031778A2
WO2004031778A2 PCT/DE2003/003243 DE0303243W WO2004031778A2 WO 2004031778 A2 WO2004031778 A2 WO 2004031778A2 DE 0303243 W DE0303243 W DE 0303243W WO 2004031778 A2 WO2004031778 A2 WO 2004031778A2
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WO
WIPO (PCT)
Prior art keywords
input
voltage
winding
control
motor
Prior art date
Application number
PCT/DE2003/003243
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German (de)
English (en)
Other versions
WO2004031778A3 (fr
Inventor
Stanislav Tkadlec
Original Assignee
Stanislav Tkadlec
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
Application filed by Stanislav Tkadlec filed Critical Stanislav Tkadlec
Priority claimed from DE10345268A external-priority patent/DE10345268A1/de
Publication of WO2004031778A2 publication Critical patent/WO2004031778A2/fr
Publication of WO2004031778A3 publication Critical patent/WO2004031778A3/fr

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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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/04—Single phase motors, e.g. capacitor motors

Definitions

  • the invention relates to a measuring method. - Speed measurement of a single-phase asynchronous motor, universal motor and several versions of the speed controls of a single-phase asynchronous motor and a universal motor.
  • the speed of a motor is measured either via a mechanically connected incremental encoder or via a mechanically coupled magnetic sensor, which represents a certain inconvenient design and cost Realize speed control.
  • the measuring method described in the application offers the specification of the speed of a motor directly from an electrical parameter - the induced voltage Uhw from the auxiliary winding 2 - after a signal processing and to use it as feedback for speed control of a single-phase asynchronous motor.
  • the speed measurement of a single-phase asynchronous motor after registration is characterized by the following features:
  • An asynchronous motor has the main winding 12 and at the same time the auxiliary winding 1 connected to a corresponding alternating voltage U1 via a starting capacitor 2 connected in series. Then the measured induced voltage -Uhw on the auxiliary winding 1 is proportional to the speed of the single-phase asynchronous motor. It may be necessary to process and calibrate the induced voltage -Uhw via a measuring device 14 for the speed measurement of a certain single-phase asynchronous motor. Instead of the induced voltage -Uhw on the auxiliary winding 1, the measured voltage -Uc from the starting capacitor 2 can also be used in the same way.
  • a speed control of a single-phase asynchronous motor is also described, which is characterized by the following features.
  • a single-phase asynchronous motor has the main winding 12 connected to the corresponding AC voltage U1 via a regulator element 4 and at the same time the auxiliary winding 1 via a starting capacitor 2.
  • a negative input of a differential controller 3 is connected to the connection point between the starting capacitor 2 and the auxiliary winding 1 and the positive input of a differential controller 3 is connected to the control input 6.
  • the output of the differential controller 3 is further connected to the input of the control element 4.
  • the current of the main winding 12 is regulated via the regulator element 4, namely in proportion to the voltage difference between the voltage Uact, which is further proportional to the induced voltage Uhw, and the control voltage Usoll on the control input 6.
  • the voltage Uc from the starting capacitor 2 is to be used instead of the voltage Uhw. Otherwise there is also the option to connect a voltage difference 15 in series between the connection nodes - auxiliary winding 1 - starting capacitor 2 and the negative input of a differential regulator 3 in order to compensate for the voltage drop Uo.
  • a single-phase asynchronous motor is described, where the two windings of an asynchronous motor - the main winding 12 and the auxiliary winding 1 are connected and controlled via a control element 4 and are characterized by the following features.
  • the main winding 12 and the auxiliary winding 1 connected in series with the starting capacitor 2 are connected via a regulator element 4 to the corresponding AC voltage U1.
  • a negative input of a differential controller 3 is connected to the connection point between the starting capacitor 2 and the auxiliary winding 1 and the positive input of a differential controller 3 is connected to the control input 6.
  • the output of the differential controller 3 is further connected to the input of the controller clip 4.
  • the current of the main winding 12 and the auxiliary winding 1, which is closed in parallel, is regulated via the regulator element 4, namely in proportion to the voltage difference between the voltage Uact, which is further proportional to the induced voltage Uhw, and the control voltage Usoll on the control input 6.
  • the feedback of the differential regulator 3 is to use the voltage Uc from the starting capacitor 2 instead of the voltage Uhw.
  • a voltage difference 15 in series between the connection nodes - auxiliary winding 1 - starting capacitor 2 and the negative input of a differential regulator 3 in order to compensate for the voltage drop Uo.
  • a phase-controlled element such as a triack or thyristor is intended as the control element 4.
  • a voltage-phase converter (9) and possibly a galvanic isolating element (8) should be connected between the output of the differential controller (3) and the input of the controller clip (4).
  • the control cable 6 can be connected via a communication module 35 to a communication bus 36 and the target value in the form of an analog input voltage (Usoll) can be conveyed by a communication bus 36 via a communication module 35.
  • a measuring method is described - speed measurement of a universal motor and several versions of the speed control of a universal motor.
  • the speed of a motor is measured either via a mechanically connected incremental encoder or via a mechanically coupled magnetic sensor, which represents an additional effort and an unfavorable cost factor.
  • a signal from the sensor as a feedback one can further correct an engine speed control.
  • a measuring method is described - speed measurement of a universal motor and several versions of the speed control of a universal motor.
  • the measuring method described in the application provides the specification of the speed of a universal motor directly from an electrical parameter - to take up the induced voltage Urw from the excitation winding 22 and after signal processing further use it as feedback for a speed control of a universal motor.
  • the speed measurement of a universal motor after registration is characterized in that with armature winding 21 of a universal motor connected in series as standard and the excitation winding 22 of a universal motor to a corresponding alternating voltage Un, the measured induced voltage -Urw on the excitation winding 22 at the speed of the universal motor ' is proportional.
  • the measured induced voltage -Urw may need to be corrected for converting the measured induced voltage -Urw into a speed.
  • the excitation winding 22 can be implemented in two winding sections 221 and 222 connected in series. Between the winding sections 221 and 222 the armature winding 21 is shot. In this case, the induced voltage -Urw is to be measured on one of the two of the winding sections 221 and 222.
  • the speed control of a universal motor after registration is characterized in that the armature winding 21 and the excitation winding 22 of a universal motor are connected to the corresponding AC voltage Un via a control element 24.
  • the input of an AC-DC converter 23 with the galvanic isolation is connected to the excitation winding 22 and the output of the AC-DC converter 23 is further connected to the negative input of a differential controller 3.
  • the positive input of a differential controller 3 is connected to the control input 6 of the speed control.
  • the output of the differential controller 3 is connected to the input of the control element 24.
  • the excitation winding 22 can be implemented in two winding sections 221 and 222 connected in series.
  • the armature winding 21 is connected between the winding sections 221 and 222.
  • the input of an AC-DC converter 23 is connected to one of the two of the winding sections 221 and 222 of the excitation winding 22.
  • the induced voltage -Urw from the excitation winding 22 becomes. transformed and corrected in the AC-DC converter 23 and evaluated as actual value (Uact) with the analog input voltage (target value - Usoll) from control input 6 in differential controller 3.
  • the differential controller 3 may be designed with electrical isolation and may be equipped with a suitable converter for converting an analog voltage into a phase signal.
  • the differential controller 3 controls the control element 24 with the output signal in a suitable form; For example, if a control element 24 is designed as a triack or thyristor, this control element 24 will be controlled with a phase-controlled signal.
  • the control input 6 can be connected via a communication module 35 to a communication bus 36, and the analog input voltage setpoint value (Usoll) can be conveyed by a communication bus 36 via a communication module 35.
  • control unit is described as an application of the described type of speed control of an electric motor.
  • Control unit for speed control of the motors in particular universal motors, asynchronous motors with a starting capacitor, characterized in that the actual input 11 is connected via an AC-DC converter with the electrical isolation 23 to the negative input of a differential controller 3.
  • the positive input of a differential controller 3 is connected to the control input 6 of the speed control.
  • the output of the differential controller 3 is connected via a DC-Phasc converter with the galvanic isolation 25 to an input of the control element 24.
  • the two power poles of the Rcgclelement 24 are connected to two output clamps 27.
  • the induced voltage -Urw from a motor winding, proportional to the speed of a motor, is connected to actual input 11.
  • the voltage is converted and corrected appropriately in the AC-DC converter 23 and evaluated as the actual value (Uactual) with the analog input voltage (setpoint value - Usoll) from the control input 6 in the differential controller 3.
  • the analog signal is converted into a phase-modulated signal in the DC-Phasc converter 25.
  • the signal further controls the regulating element 24 and the regulating element 24 regulates the current of a main winding, the armature winding of a motor and thus the speed of a motor.
  • the analog input voltage setpoint value (Usoll) can also be transferred via a communication module 35, which is also connected to a communication bus 36.
  • Fig.l. shows a block diagram of the circuit of the speed measurement
  • FIG. 2 shows a circuit of the speed control of a single-phase asynchronous motor after registration, the asynchronous motor having the main winding 12 over a
  • FIG 3 shows a circuit of the speed control of a single-phase asynchronous motor after registration, the asynchronous motor having the two windings main winding 12 and the auxiliary winding connected via a control element 4.
  • Fig. 4,5 shows the detailed control circuits for both options according to Figs. 2 and 3.
  • Fig. 6 shows the possibility of controlling the speed control unit via a communication bus.
  • Fig. 7 shows the basic arrangement of the speed measurement of a universal motor
  • Fig. 8 shows the basic arrangement of the speed control of a universal motor
  • FIG. 9 shows an example of a basic arrangement of the speed control of an asynchromotor with three windings and a starting capacitor.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

L'invention concerne un procédé de mesure ainsi qu'un procédé de commande de la vitesse de rotation d'un moteur asynchrone monophasé et d'un moteur universel. Le procédé de mesure selon l'invention recueille la vitesse de rotation d'un moteur directement de l'enroulement auxiliaire (1) d'un moteur asynchrone monophasé ou de l'enroulement excitateur (22) d'un moteur universel, après un traitement du signal, et l'utilise ensuite en tant que signal de réinjection pour une commande de la vitesse de rotation du moteur asynchrone monophasé ou du moteur universel. Le procédé de commande de la vitesse de rotation d'un moteur asynchrone monophasé selon l'invention est caractérisé en ce que le raccordement à la tension alternative correspondante UI se fait par l'intermédiaire d'un élément régulateur (4) pour l'enroulement principal (12) du moteur asynchrone monophasé et par l'intermédiaire d'un condensateur de démarrage (2) pour l'enroulement auxiliaire (1) du moteur asynchrone monophasé. Le courant de l'enroulement principal (12) et de l'enroulement auxiliaire (1) du moteur asynchrone monophasé est commandé par l'intermédiaire de l'élément régulateur, à l'aide d'un signal proportionnel à la différence de tension entre la tension Umes sur l'enroulement auxiliaire (1) et la tension de commande Ucons à l'entrée de commande (6), ce signal ayant été éventuellement adapté dans le régulateur différentiel (3).
PCT/DE2003/003243 2002-09-28 2003-09-28 Mesure et commande de la vitesse de rotation d'un moteur asynchrone monophase et d'un moteur universel WO2004031778A2 (fr)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
DE10245472 2002-09-28
DE10245472.8 2002-09-28
DE10253091.2 2002-11-13
DE10253091 2002-11-13
DE10253619.8 2002-11-15
DE10253619 2002-11-15
DE10253655 2002-11-16
DE10253655.4 2002-11-16
DE10329173 2003-06-28
DE10329173.3 2003-06-28
DE10345268.0 2003-09-28
DE10345268A DE10345268A1 (de) 2002-09-28 2003-09-28 Drehzahlmessung/Drehzahlsteuerung eines Asynchronmotors und eines Universalmotors

Publications (2)

Publication Number Publication Date
WO2004031778A2 true WO2004031778A2 (fr) 2004-04-15
WO2004031778A3 WO2004031778A3 (fr) 2004-07-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/003243 WO2004031778A2 (fr) 2002-09-28 2003-09-28 Mesure et commande de la vitesse de rotation d'un moteur asynchrone monophase et d'un moteur universel

Country Status (1)

Country Link
WO (1) WO2004031778A2 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196462A (en) * 1978-05-30 1980-04-01 General Electric Company Protective control circuit for induction motors
EP0054446A1 (fr) * 1980-12-09 1982-06-23 SOCIETE ELECTRO-HYDRAULIQUE (S.E.H.) Société anonyme Moteur électrique asynchrone, dispositif de commande de l'alimentation d'un tel moteur, et circulateur comportant un tel moteur
US4481448A (en) * 1982-07-17 1984-11-06 Ferranti, Plc Automatic electrical motor speed control
US4935678A (en) * 1989-11-09 1990-06-19 Whirlpool Corporation Universal motor speed control circuit for hand mixer
DE4130532A1 (de) * 1991-09-13 1993-03-18 Fraunhofer Ges Forschung Verfahren und vorrichtung zur drehzahl- und/oder leistungsaufnahme-regulierung eines elektromotors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196462A (en) * 1978-05-30 1980-04-01 General Electric Company Protective control circuit for induction motors
EP0054446A1 (fr) * 1980-12-09 1982-06-23 SOCIETE ELECTRO-HYDRAULIQUE (S.E.H.) Société anonyme Moteur électrique asynchrone, dispositif de commande de l'alimentation d'un tel moteur, et circulateur comportant un tel moteur
US4481448A (en) * 1982-07-17 1984-11-06 Ferranti, Plc Automatic electrical motor speed control
US4935678A (en) * 1989-11-09 1990-06-19 Whirlpool Corporation Universal motor speed control circuit for hand mixer
DE4130532A1 (de) * 1991-09-13 1993-03-18 Fraunhofer Ges Forschung Verfahren und vorrichtung zur drehzahl- und/oder leistungsaufnahme-regulierung eines elektromotors

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WO2004031778A3 (fr) 2004-07-08

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