FR3099660B1 - Electric motor control assembly and method - Google Patents

Electric motor control assembly and method Download PDF

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Publication number
FR3099660B1
FR3099660B1 FR1908796A FR1908796A FR3099660B1 FR 3099660 B1 FR3099660 B1 FR 3099660B1 FR 1908796 A FR1908796 A FR 1908796A FR 1908796 A FR1908796 A FR 1908796A FR 3099660 B1 FR3099660 B1 FR 3099660B1
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France
Prior art keywords
phase
duty cycle
control
electric motor
pulse width
Prior art date
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Active
Application number
FR1908796A
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French (fr)
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FR3099660A1 (en
Inventor
Xiang Liu
Jose Luis Herrada
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.)
Valeo Systemes dEssuyage SAS
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Valeo Systemes dEssuyage SAS
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Priority to FR1908796A priority Critical patent/FR3099660B1/en
Publication of FR3099660A1 publication Critical patent/FR3099660A1/en
Application granted granted Critical
Publication of FR3099660B1 publication Critical patent/FR3099660B1/en
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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
    • 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
    • H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
    • 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
    • H02P25/022—Synchronous motors
    • 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
    • H02P25/022—Synchronous motors
    • H02P25/03—Synchronous motors with brushless excitation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Inverter Devices (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

Ensemble et procédé de commande pour moteur électrique. L’ensemble de commande (1) d’un moteur électrique (3) triphasé comprend :- un onduleur (5) comprenant une pluralité de transistors (HS, LS) chacun ayant un état passant et un état bloqué pour alimenter pendant des périodes de commande les trois phases (A, B, C) du moteur électrique (3), chaque période de commande comportant plusieurs intervalles de commande,- une unité de commande (9) configurée pour appliquer une modulation à largeur d’impulsions de sorte que pendant chaque intervalle de commande (s1, s2, s3, s4, s5, s6), l’unité de commande (9) délivre à une première phase un premier signal représentatif d’un rapport cyclique élevé de la modulation à largeur d’impulsions, à une deuxième phase un deuxième signal représentatif d’un rapport cyclique zéro de la modulation à largeur d’impulsions, et à la troisième phase un troisième signal représentatif d’un rapport cyclique intermédiaire de la modulation à largeur d’impulsions, le rapport cyclique intermédiaire variant du rapport cyclique élevé au rapport cyclique zéro ou inversement.A des instants prédéterminés de chaque intervalle de commande (s1, s2, s3, s4, s5, s6), l’unité de commande (9) est également configurée pour : commander l’état bloqué des transistors (LS, HS) de l’onduleur (5) associés à la troisième phase pendant une durée prédéterminée, mesurer la tension de phase associée à la troisième phase, détecter, à partir de la tension de phase mesurée, un changement de signe du courant de phase (iA, iB, iC) associé à la tension de phase mesurée, et estimer un déphasage entre la tension de phase et le courant de phase en fonction du résultat de la détection. Figure pour l’abrégé : Fig. 2Control assembly and method for an electric motor. The control assembly (1) of a three-phase electric motor (3) comprises: - an inverter (5) comprising a plurality of transistors (HS, LS) each having an on state and an off state for supplying power during periods of controls the three phases (A, B, C) of the electric motor (3), each control period comprising several control intervals, - a control unit (9) configured to apply pulse width modulation so that during each control interval (s1, s2, s3, s4, s5, s6), the control unit (9) delivers in a first phase a first signal representative of a high duty cycle of the pulse width modulation, in a second phase a second signal representative of a zero duty cycle of the pulse width modulation, and in the third phase a third signal representative of an intermediate duty cycle of the pulse width modulation, the duty cycle intermediate varying of the duty cycle e raised to zero duty cycle or vice versa At predetermined times of each control interval (s1, s2, s3, s4, s5, s6), the control unit (9) is also configured to: control the blocked state of the transistors (LS, HS) of the inverter (5) associated with the third phase for a predetermined time, measuring the phase voltage associated with the third phase, detecting, from the measured phase voltage, a change in sign of the phase current (iA, iB, iC) associated with the measured phase voltage, and estimate a phase shift between the phase voltage and the phase current as a function of the result of the detection. Figure for the abstract: Fig. 2

FR1908796A 2019-07-31 2019-07-31 Electric motor control assembly and method Active FR3099660B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1908796A FR3099660B1 (en) 2019-07-31 2019-07-31 Electric motor control assembly and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1908796 2019-07-31
FR1908796A FR3099660B1 (en) 2019-07-31 2019-07-31 Electric motor control assembly and method

Publications (2)

Publication Number Publication Date
FR3099660A1 FR3099660A1 (en) 2021-02-05
FR3099660B1 true FR3099660B1 (en) 2021-07-16

Family

ID=68987857

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1908796A Active FR3099660B1 (en) 2019-07-31 2019-07-31 Electric motor control assembly and method

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FR (1) FR3099660B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007122784A1 (en) * 2006-03-29 2007-11-01 Rohm Co., Ltd. Motor drive circuit, method, and disc device using the same
DE102006032491A1 (en) * 2006-07-13 2008-01-17 Siemens Ag Method and device for determining the rotor position in a brushless and sensorless electric motor
WO2014155158A1 (en) * 2013-03-28 2014-10-02 Freescale Semiconductor, Inc. Device for determining a position of a rotor of an electric motor

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Publication number Publication date
FR3099660A1 (en) 2021-02-05

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