WO2008135520A2 - Moteur électrique et procédé de commande de celui-ci - Google Patents

Moteur électrique et procédé de commande de celui-ci Download PDF

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Publication number
WO2008135520A2
WO2008135520A2 PCT/EP2008/055401 EP2008055401W WO2008135520A2 WO 2008135520 A2 WO2008135520 A2 WO 2008135520A2 EP 2008055401 W EP2008055401 W EP 2008055401W WO 2008135520 A2 WO2008135520 A2 WO 2008135520A2
Authority
WO
WIPO (PCT)
Prior art keywords
motor
position sensors
sensors
changes
sensor
Prior art date
Application number
PCT/EP2008/055401
Other languages
English (en)
Other versions
WO2008135520A3 (fr
Inventor
Kerem Erenay
Fehmi Sonmezoz
Latif Tezduyar
Ersoy Ozcan
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2008135520A2 publication Critical patent/WO2008135520A2/fr
Publication of WO2008135520A3 publication Critical patent/WO2008135520A3/fr

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
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/12—Monitoring commutation; Providing indication of commutation failure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24457—Failure detection
    • G01D5/24461—Failure detection by redundancy or plausibility
    • 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
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/02—Providing protection against overload without automatic interruption of supply
    • 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
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position

Definitions

  • the present invention relates to a motor and the control method thereof that detects the sensor errors.
  • the position of the rotor is detected by sensorless algorithms or by various sensor structures such as position sensors.
  • the position sensor configuration provides performance safety in washer/dryers. If the motor is operating at high speed when this sensor malfunctions or when there is a lock of motor, then great damage can occur in the motor or the motor circuit.
  • the aim of the present invention is the realization of a motor and a control method thereof wherein the erroneous functioning of the position sensors is detected without delay.
  • At least one control unit is provided that controls the position sensors. As long as the motor operates with the algorithms in the control unit, the output values of the position sensors are controlled without interruption.
  • the control unit controls the number of changes in output values of each sensor and compares the number of changes in output values of each sensor with the number of changes in output values of the other two sensors. If the control unit detects that while the output value of a sensor changes n times, the output values of the other two sensors do not change (n-1), n or (n+1) times, then an error signal is generated and the motor is halted.
  • Figure 1 - is the schematic view in a three position sensor embodiment of a bipolar brushless direct current motor with a clockwise rotating rotor.
  • Figure 2 - is the output value diagram of the sensors in a three position sensor embodiment of a bipolar brushless direct current motor with a clockwise rotating rotor.
  • Figure 3 - is the table of output values received from the sensors in a three position sensor embodiment of a bipolar brushless direct current motor with a clockwise rotating rotor.
  • Figure 4 - is the schematic view of a bipolar brushless direct current motor with a clockwise rotating rotor in another embodiment.
  • the elements illustrated in the figures are numbered as follows:
  • the motor (1) comprises a rotor (2), a stator (3) around the rotor (2), at least two position sensors (4) positioned equidistantly to one another on the stator (3) and at least one control unit (5) that controls the output values of the position sensors (4, 41 , 42).
  • the rotor (2) has magnetic poles (WS). While the rotor (2) rotates, the magnetic poles (N/S) pass alternately in front of the position sensors (4). The output values of the positions sensors (4) change as each of the magnetic poles (N/S) passes in front of the position sensors (4).
  • the position sensors (4, 41 , 42) are disposed equidistantly from each other. For example, in an embodiment with three position sensors (4, 41 , 42), the position sensors (4, 41 , 42) generate square waves each having 120 degree phase difference with respect to each other as the different poles of the rotor (2) pass in front of the position sensors (4, 41 , 42) ( Figure 2).
  • a hall sensor that detects magnetic changes and delivers by converting to an electrical parameter such as voltage is selected as the position sensor (4, 41 , 42).
  • three position sensors (4, 41 , 42) are positioned on the stator (3) ( Figure 1).
  • a triple phase bipolar brushless direct current motor (1) is used as the motor (1).
  • the output values of the first, second and third positions sensors (4, 41 , 42) are respectively the repeated groups of [(O 1 0), (0 1 1), (0 0 1), (1 0 1), (1 0 0), (1 1 O)] ( Figure 3).
  • the routine digital information received from the first, second and third positions sensors (4, 41 , 42) is respectively the repeated groups of [(1 1 0), (1 0 0), (1 0 1), (0 0 1), (0 1 1), (0 1 0)].
  • each position sensor (4, 41 , 42) is monitored by the control unit (5) continuously.
  • the control unit (5) In an embodiment with three position sensors (4, 41 , 42), while the rotor (2) rotates clockwise, when there are 4 changes in the output of a position sensor (4), there must be at least 3 changes in the other two position sensors (41 , 42) according to routine digital information received previously from the sensors (4, 41 , 42). In such a case, if there are not 3, 4 or 5 changes in both of the other two position sensors (41 , 42), an error in the motor (1) is identified by the control unit (5).
  • control unit (5) continuously compares the output values of each position sensor (4, 41 , 42) with the output values of the other two position sensors.
  • the control unit (5) gives an error signal and halts the motor (1) if the output value of one position sensor (4 or 41 or 42) changes n times while the output of the other two position sensors changes less than (n-1) or more than (n+1) times.
  • three position sensors (4, 41 , 42) are positioned on the stator (3) and furthermore three control units (5, 51 , 52) connected to these three position sensors (4, 41 , 42) are provided ( Figure 4).
  • the control unit (5, 51 , 52) of each position sensor (4, 41 , 42) monitors the output of the other two position sensors (4, 41 , 42) continuously.
  • the control unit (5) of a position sensor (4) evaluates both the output of the position sensor (4) it is responsible of and also the number of changes in the output values of the other two position sensors (41 , 42).
  • the control units (5, 51 , 52) give an error signal if the output value of the position sensor they are connected to changes n times while the output of the other two position sensors () changes less than (n-1) or more than (n+1).
  • providing three control units (5, 51 , 52) connected to three position sensors (4, 41 , 42) enables to evaluate the changes in the output values of the sensors (4, 41 , 42) in a shorter period of time.
  • the lock of a motor (1) can occur when the outputs of the position sensors (4, 41 , 42) are at any group of values [(O 1 0), (0 1 1), (0 0 1), (1 0 1), (1 0 0), (1 1 0)].
  • the sensor outputs oscillate between the present and the previous or the next digital values. For example, if the rotor (2) locks up while the outputs of the first, second and third position sensors (4, 41 , 42) are in consecutive sequence (0 1 0), then the sensor outputs continuously change between (0 1 0) and (0 1 1).
  • the value of the first position sensor (4) stays at 0 and the value of the second position sensor (41) stays at 1 perpetually and the value of the third position sensor (42) oscillates between 0 and 1.
  • the motor (1) is halted before excess brake generated currents arise in the electronic circuits preventing enormous damages since the normal or erroneous operation of the position sensors (4, 41 , 42) or the presence of another problem originating from the motor (1) can be detected a short while after the motor (1) is actuated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

L'invention concerne un moteur (1) et un procédé de commande de celui-ci, dans lesquels le fonctionnement erroné de capteurs de position (4) peut être détecté immédiatement. Le moteur (1) de l'invention comprend une unité de commande (5) qui produit un signal d'erreur et arrête le moteur lorsque la valeur de sortie d'un capteur de position (4) change selon un multiple n et que les valeurs de sortie des autres capteurs de position (4) changent selon une valeur inférieure à (n-1) ou supérieure à (n+1).
PCT/EP2008/055401 2007-05-02 2008-05-01 Moteur électrique et procédé de commande de celui-ci WO2008135520A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRTR2007/02965 2007-05-02
TR200702965 2007-05-02

Publications (2)

Publication Number Publication Date
WO2008135520A2 true WO2008135520A2 (fr) 2008-11-13
WO2008135520A3 WO2008135520A3 (fr) 2010-03-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/055401 WO2008135520A2 (fr) 2007-05-02 2008-05-01 Moteur électrique et procédé de commande de celui-ci

Country Status (2)

Country Link
TR (1) TR200908942T1 (fr)
WO (1) WO2008135520A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3217532A3 (fr) * 2016-02-08 2017-11-22 Rohm Co., Ltd. Dispositif de commande de moteur
DE102018130332A1 (de) * 2018-11-29 2020-06-04 Jungheinrich Aktiengesellschaft Verfahren zur Fehlererkennung für ein Positionserfassungssystem für einen Hydraulikzylinder, Fehlererkennungssystem und Flurförderzeug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050076867A1 (en) * 2003-10-09 2005-04-14 Denso Corporation Valve controller
US20050212469A1 (en) * 2004-03-29 2005-09-29 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Method and device for triggering an electric motor
WO2006134753A1 (fr) * 2005-06-13 2006-12-21 Shinano Kenshi Kabushiki Kaisha Dispositif de pilotage de corps en ouverture/fermeture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050076867A1 (en) * 2003-10-09 2005-04-14 Denso Corporation Valve controller
US20050212469A1 (en) * 2004-03-29 2005-09-29 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Method and device for triggering an electric motor
WO2006134753A1 (fr) * 2005-06-13 2006-12-21 Shinano Kenshi Kabushiki Kaisha Dispositif de pilotage de corps en ouverture/fermeture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3217532A3 (fr) * 2016-02-08 2017-11-22 Rohm Co., Ltd. Dispositif de commande de moteur
US10177693B2 (en) 2016-02-08 2019-01-08 Rohm Co., Ltd. Motor drive device
DE102018130332A1 (de) * 2018-11-29 2020-06-04 Jungheinrich Aktiengesellschaft Verfahren zur Fehlererkennung für ein Positionserfassungssystem für einen Hydraulikzylinder, Fehlererkennungssystem und Flurförderzeug

Also Published As

Publication number Publication date
WO2008135520A3 (fr) 2010-03-11
TR200908942T1 (tr) 2010-06-21

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