EP4548470A1 - Fonctionnement d'un appareil électroménager comportant un moteur d'entraînement à courant continu sans balais (bldc) - Google Patents

Fonctionnement d'un appareil électroménager comportant un moteur d'entraînement à courant continu sans balais (bldc)

Info

Publication number
EP4548470A1
EP4548470A1 EP23736032.6A EP23736032A EP4548470A1 EP 4548470 A1 EP4548470 A1 EP 4548470A1 EP 23736032 A EP23736032 A EP 23736032A EP 4548470 A1 EP4548470 A1 EP 4548470A1
Authority
EP
European Patent Office
Prior art keywords
speed
ref
actual
target
drive motor
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP23736032.6A
Other languages
German (de)
English (en)
Inventor
Roman Mayer
Markus Hoser
Johannes Schuster
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP4548470A1 publication Critical patent/EP4548470A1/fr
Pending legal-status Critical Current

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
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position
    • H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
    • H02P6/181—Circuit arrangements for detecting position without separate position detecting elements using different methods depending on the speed
    • 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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/34—Arrangements for starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/025—Motor control arrangements
    • 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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/13—Observer control, e.g. using Luenberger observers or Kalman filters
    • 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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
    • H02P21/18—Estimation of position or speed
    • 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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/24—Vector control not involving the use of rotor position or rotor speed sensors
    • H02P21/26—Rotor flux based control
    • 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
    • H02P6/182—Circuit arrangements for detecting position without separate position detecting elements using back-emf in windings
    • 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
    • H02P6/183—Circuit arrangements for detecting position without separate position detecting elements using an injected high frequency signal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • 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
    • H02P2203/00—Indexing scheme relating to controlling arrangements characterised by the means for detecting the position of the rotor
    • H02P2203/05—Determination of the rotor position by using two different methods and/or motor models
    • 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
    • H02P2205/00—Indexing scheme relating to controlling arrangements characterised by the control loops
    • H02P2205/05—Torque loop, i.e. comparison of the motor torque with a torque reference
    • 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
    • H02P2205/00—Indexing scheme relating to controlling arrangements characterised by the control loops
    • H02P2205/07—Speed loop, i.e. comparison of the motor speed with a speed reference

Definitions

  • the invention relates to a method for operating a household appliance, in which, in order to start up a BLDC drive motor of the household appliance, an actual speed of a rotor of the BLDC drive motor is increased from its idle state and an actual angle and the actual speed are determined by means of high-frequency injection .
  • the invention also relates to a household appliance with a BLDC drive motor, the household appliance being set up to carry out the method.
  • the invention is particularly advantageously applicable to starting up a BLDC drive motor that drives a reciprocating compressor of a refrigeration circuit of a household refrigeration appliance, in particular a refrigerator.
  • the household appliance comprises a component and a regulated electric drive, which has a permanently excited three-phase synchronous motor, an actuator designed in particular as a converter for controlling the three-phase synchronous motor and a field-oriented control for controlling the actuator.
  • the three-phase synchronous motor comprises a stator and a rotor rotatably mounted with respect to the stator and is part of the component or is intended to drive this component, having the following method steps: during an operating phase of the electric drive, speed-controlled operation of the regulated electric drive by means of the field-oriented control and depending on an angular position of the rotor relative to the stator determined by means of the longitudinal and transverse currents and a mathematical model of the three-phase synchronous motor, and during a braking phase of the electric drive following the operating phase, - reducing the speed of the three-phase synchronous motor by speed-controlled operation of the regulated electric drive by means of the field-oriented control and depending on an angular position of the rotor relative to the stator determined by means of the longitudinal and transverse currents and a mathematical model of the three-phase synchronous motor until the speed reaches a predetermined limit speed, - superimposing a and
  • the supply voltage provided for operating the three-phase synchronous motor has a high-frequency voltage, whereby
  • the household appliance comprises a component and a regulated electric drive, which has a permanently excited three-phase synchronous motor, an actuator designed in particular as a converter for controlling the three-phase synchronous motor and a field-oriented control for controlling the actuator.
  • the three-phase synchronous motor comprises a stator and a rotor rotatably mounted with respect to the stator and is part of the component or is intended to drive this component, comprising the following method steps: during a start-up phase of the electric drive, - superimposing a motor generated by the actuator and for operation of the three-phase synchronous motor with a high-frequency voltage, whereby phase currents of the three-phase synchronous motor have corresponding high-frequency current components, - determining longitudinal and transverse currents assigned to the three-phase synchronous motor from the phase currents, which have high-frequency current components corresponding to the high-frequency voltage, - determining the angular position of the rotor relative to the stator depending on the high-frequency current components of the longitudinal and transverse currents, and - increasing the speed of the three-phase synchronous motor through speed-controlled operation of the regulated electric drive using field-oriented control and depending on the high-frequency current components of the longitudinal and transverse currents determined angular position of the rotor relative to the stator until
  • the task is solved by a method for operating a household appliance, specifically for starting up a BLDC drive motor of the household appliance, in which
  • an actual speed, w, of a rotor of the BLDC drive motor is increased from its idle state by means of a deterministic target actuating torque and thereby an actual (position) angle, 0, and the actual speed w of the rotor by means of high-frequency injection tion, HFI, can be determined,
  • the actual speed w is regulated to a target speed ⁇ ref and
  • the actual angle 0 and the actual speed w are determined using EMF.
  • This method has the advantage that, due to the precise knowledge of the position angle or the angular position when using the HFI method, effective utilization of the actuating torque is possible even at low actual speed w, because the torque can be ensured in this way .
  • the advantage of switching from the HFI method to the EMF method at higher actual speeds is that the disadvantages of determining the actual angle and the actual speed using high-frequency injection that occur at higher actual speeds are avoided . For example, at higher actual speeds, it may happen that the computing power is not sufficient to calculate the actual angle and the actual speed in a timely manner.
  • the household appliance can be a refrigeration device such as a refrigerator, a freezer or a combination thereof.
  • the household appliance can be a laundry treatment device such as a washing machine, a tumble dryer or a combination thereof (washer-dryer).
  • the household appliance can also be a dishwasher, for example.
  • a “BLDC drive motor” is understood to mean, in particular, a brushless direct current motor that is intended, i.e., arranged and set up, to drive another component of the household appliance.
  • a rotor of the BLDC drive motor can serve as a drive shaft.
  • Booting can also be referred to as starting or starting. It is an embodiment that when the BLDC drive motor is at rest, its actual speed w is zero, i.e. the BLDC drive motor is started up from a standstill.
  • the "deterministic" target actuating torque is in particular a target actuating torque that is not generated by a control, but is calculated from measurement data or stored data and / or is read from a data memory, e.g. using at least one characteristic curve or using table values.
  • the deterministic target actuating torque can be parameterized, i.e. it is output depending on at least one parameter.
  • the fact that the actual speed is increased in a controlled manner using the deterministic target setting torque includes, in particular, that the deterministic target setting torque is used as an input large or specification of a regulation is provided. This can in particular be a torque control.
  • a high-frequency voltage is superimposed on a supply voltage of the BLDC drive motor, which causes a corresponding, superimposed high-frequency component of the phase or motor currents of the BLDC drive motor in order to increase the actual angle of the rotor relative to the stator of the BLDC drive motor.
  • Determine drive motor The actual angle can also be referred to as the actual position angle or actual angular position.
  • the actual speed of the rotor can be determined from the actual angle.
  • the fact that the actual speed is regulated to a target speed includes, in particular, that a target actuating torque is output as a manipulated variable of a speed controller.
  • a first speed threshold value (the first "switching speed") is reached, a switch is made from control using the deterministic target setting torque to a control system in which the target setting torque is generated using a speed controller.
  • the fact that, if the actual speed reaches or exceeds a predetermined second switching speed, the actual angle and the actual speed are determined by means of EMF includes in particular that when a second speed threshold value (the second "switching speed") is reached a determination of the actual angle and the actual speed by means of high-frequency injection or a high-frequency injection method is switched to a determination of the actual angle and the actual speed by means of EMF (“electromotive force”) or an EMF method becomes.
  • EMF electromotive Force
  • BEMF Back Electromotive Force
  • the H Fl method and/or the (“electromotive force”) method can be implemented in further training in appropriate observers.
  • the observers can, for example, be trained as Luenberger, Kalman, etc. observers or have Luenberger, Kalman, etc. observers.
  • the second switching speed is greater than the first switching speed, so that the time is first switched to the speed control and then the switch is made to determining the actual angle and the actual speed using EMF.
  • the method is not limited to this, but the second Switching speed can also be smaller than the first switching speed. It is also a further development that the first switching speed corresponds to the second switching speed.
  • a value that corresponds to the physical meaning of a torque can be used as the target actuating torque.
  • at least one value can be used as the target actuating torque, which analogously represents the physical meaning of a torque in relation to the motor, e.g. target currents in the d/q system. Consequently, for example, a torque value or, equivalently, the target currents in the d/q system can be output as a deterministic target actuating torque.
  • control signals for energizing coils of the BLDC drive motor are generated by means of a vector control from a target actuating torque and the actual angle, whereby
  • the target actuating torque supplied to the vector control is the deterministic target actuating torque
  • the target control torque supplied to the vector control is a manipulated variable of a speed control whose command variable corresponds to the target speed and whose feedback variable corresponds to the actual speed.
  • the vector control can include space vector modulation (Space Vector PWM, SVPWM).
  • the vector control uses target currents in the d/q system as target variables, specifically a target I d current and a target I q current. These target currents in the d/q system can be calculated from the target actuating torque and can correspond to the target actuating torque with high accuracy. The target currents in the d/q system can therefore be viewed as representatives of the target actuating torque in the d/q system.
  • the vector control outputs measured or internally calculated variables as measured variables for observers, for example measured motor currents and/or voltages and/or currents in a rotor-related ⁇ / ⁇ system.
  • the deterministic target actuating torque is generated by means of a signal generator.
  • the signal generator generates a deterministic target Output signal corresponding to the actuating torque based on values entered, for example calculated using a formula or retrieved from a data memory.
  • the signal generator is not a control device and can therefore also be referred to as a “control-free” signal generator.
  • the deterministic target actuating torque is a constant target actuating torque. This is advantageously particularly easy to implement.
  • the deterministic target actuating torque is a time course of the target actuating torque or has more than two successive, different values. This offers the advantage that startup can be carried out particularly gently.
  • the deterministic target actuating torque is dependent on at least one pressure present in a reciprocating compressor of the household appliance driven by the BLDC drive motor or a variable derived therefrom, for example a pressure ratio.
  • the target actuating torque can advantageously be adapted specifically to the pressure or pressures in the reciprocating piston compressor and thus to the expected load pressures. This in turn enables a particularly smooth start-up.
  • a further advantage of the method when used with a reciprocating piston compressor is that "sticking" during the first compression is avoided when starting up by specifying the deterministic target setting torque, even at high load conditions.
  • the vector control logic is preceded by an MTPA ("Maximum Torque per Ampere") logic, which converts the target actuating torque into a target I d current and into a target I q current and uses it as input variables, for example can be transferred to the vector control logic.
  • MTPA Maximum Torque per Ampere
  • This is advantageous in order to operate the BLDC motor particularly effectively based on the target actuating torque.
  • it is a further development that integrates field weakening logic into the MTPA logic.
  • a reciprocating compressor is driven or can be driven by means of the BLDC drive motor.
  • the method is particularly useful because in this case there is a higher probability that components will be damaged during startup The household appliance is subjected to mechanical stress and noise is particularly high.
  • the reciprocating compressor is a component of a refrigeration circuit. It is then an embodiment that the household appliance is a refrigeration device, e.g. a refrigerator, a freezer or a combination thereof.
  • the reciprocating compressor is a component of a heat pump.
  • the household appliance can be, for example, a laundry treatment device such as a washing machine, a tumble dryer or a combination thereof (washer dryer).
  • the household appliance can also be a dishwasher.
  • a laundry drum of a laundry treatment device is driven or can be driven by means of the BLDC drive motor.
  • the task is also solved by a household appliance with a BLDC drive motor, the household appliance being set up to carry out the method as described above.
  • the household appliance can be designed analogously to the method and vice versa, and has the same advantages.
  • the household appliance can be a refrigeration device in which a compressor, in particular a reciprocating piston compressor, of a refrigeration circuit can be driven by means of the BLDC drive motor.
  • the BLDC drive motor can be controlled by means of a converter circuit and the converter circuit is set up to carry out the method.
  • Fig. 1 shows a sectional side view of a sketch of a household appliance in the form of a refrigerator
  • Fig. 2 shows a possible functional structure of a motor control for driving a drive motor of the household appliance from Fig. 1;
  • Fig. 3 shows in more detail a possible functional structure of a vector control of the engine control from Fig. 2;
  • Fig. 4 shows a possible sequence of a method for starting the drive motor.
  • Fig. 1 shows a sectional view in side view of a sketch of a household appliance in the form of a refrigerator 1.
  • the refrigerator 1 has a refrigerator compartment 2, the front loading opening of which can be closed by means of a door 3.
  • the refrigerator 1 is controlled by a control device 4.
  • the control device 4 can control a BLDC drive motor 5 of a compressor 6 of a refrigeration circuit.
  • the compressor 6 is designed here as a reciprocating piston compressor.
  • the BLDC drive motor 5 has a rotor 7 serving as a drive shaft and can be controlled by means of a motor control 8, which generates control signals for energizing coils of the BLDC drive motor 5.
  • the motor control 8 can be a component of the BLDC drive motor 5, e.g.
  • the converter circuit 9 or the entire motor control 8 can also be integrated in the control device 4 of the refrigerator 1.
  • Fig. 2 shows a possible functional structure of the engine control 8 based on various function blocks.
  • One of the function blocks is a speed control 11, which uses a target speed Wref and an actual speed w of the rotor 7 as a manipulated variable to calculate a target actuating torque M ref, stell .
  • Another of the function blocks is a signal generator 12, which - regardless of the actual speed w - outputs a deterministic target actuating torque M ref,det .
  • This deterministic see target actuating torque M ref,det can be constant or can be a progression over time.
  • the deterministic target actuating torque M ref,det can be parameterized.
  • An MTPA logic 13 which can also include field weakening logic, calculates an equivalent pair of target I d -current I d,ref and target - based on an entered target actuating torque M ref I q current l q , ref in the d/q system and transfers these values to a vector control 14.
  • the target actuating torque M ref entered into the MTPA logic 13 is, as indicated schematically by the switch symbol, either that of the Speed control 11 output target actuating torque M ref, stell or the deterministic target actuating torque M ref,det output by the signal generator 12.
  • the vector control 14 calculates the control signals for energizing the coils of the BLDC drive motor 5 from the target I d current I d,ref , the target I q current l q , ref and an actual angle 0 of the rotor 7 .
  • the motor control 8 also includes an observer 15, for example a Luenberger observer, which receives input or measured variables B from the vector control 14 and from these calculates or estimates the actual angle 0 and the actual speed w of the rotor 7 .
  • the actual angle 0 is transferred to the vector control 14, the actual speed w to the speed control 11.
  • the observer 15 here comprises an HFI (high-frequency injection) observer 16, which determines, in particular estimates, the actual angle 0 and the actual speed w from measured variables B in the form of motor currents that have a high-frequency component generated by high-frequency injection.
  • the observer 15 also includes an EMF observer 17, which determines, in particular estimates, the actual angle 0 and the actual speed w from measured variables B in the form of transformed measured motor currents and motor voltages calculated in the vector control 14 by EMF.
  • Fig. 3 shows a possible more detailed embodiment of the vector control 14 and the observers 16 and 17.
  • a difference is formed between the target I d current I d,ref supplied by the MTPA logic 13 and an actual I d current I d , as well as, analogously, a difference between the target I q current I q,ref and actual I q -current I q .
  • the differences are fed to respective controllers 19, for example PI controllers.
  • the regulators 19 can also be referred to as current regulation.
  • the regulators 19 output a voltage V d or V q , which are transferred to an inverse park transformation 20.
  • the inverse Park transformation 20 calculates voltages V ⁇ and V ⁇ in the ⁇ / ⁇ system from the voltages V d and V q as well as the actual angle 0 and passes them on to a space vector modulation 21 (space vector PWM). , SVPWM).
  • the space vector modulation 21 generates control signals GS, for example gate signals for transistors, for a four-quadrant controller 22, which no longer needs to be part of the vector control 14.
  • the four-quadrant controller 22 supplies power to the BLDC drive motor 5 in accordance with the control signals GS.
  • the vector control 14 includes a Clarke transformation 23, which converts the measured motor currents la , lb , lc into currents la , I ⁇ in the ⁇ / ⁇ system, which in turn is known using a Park transformation 24 of the actual angle 0 can be converted into the actual I d current I d and the actual I q current l q .
  • Blocks 23 and 24 can also be collectively referred to as the Clarke Park Transformation.
  • the actual I d current I d and the actual I q current l q are fed back to form the difference with the target I d current I d,ref or the target I q current I q .ref.
  • the HFI observer 16 receives from the vector control 14 as measured variables B the motor currents la , lb , lc, which are still subject to high frequencies, and estimates the actual angle 0 and the actual speed w of the rotor 7 from this.
  • the HFI observer 16 can include a Luenberger, Kalman, etc. observer in further training.
  • the EMF observer 17 receives from the vector control 14 as measured variables B the currents la , I ⁇ in the ⁇ / ⁇ system and the voltages V a , V ⁇ in the ⁇ / ⁇ system and estimates the actual angle 0 and the actual -Speed w of the rotor 7.
  • the EMF observer 17 can be trained as a Luenberger, Kalman, etc. observer in further training.
  • Fig. 4 shows a possible exemplary embodiment of how the engine control 8 increases or decreases the speed.
  • the BLDC drive motor 5 can be started up: It is assumed that the BLDC drive motor 5 is in its idle state in a step S0, in which its actual speed w is zero, for example because it is not energized.
  • a step S1 H Fl signals are impressed on the motor currents la , lb , lc and the motor currents la , lb , lc are applied to the BLDC drive motor 5.
  • M ref M ref
  • the vector control 14 generates the control signals GS from this and from the actual angle 0 estimated by the HFI observer 16, as already described above, and also outputs the measured variables B for the HFI observer 16.
  • step S3 it is checked whether the actual speed w determined by means of the H Fl observer 16 has reached or exceeded a first threshold value, namely the first switching speed. If not (“N”), the system returns to step S1.
  • step S1 to S3 the speed control 11 is not used.
  • step S5 it is checked whether the actual speed ⁇ determined by means of the H Fl observer 16 has reached or exceeded a second threshold value, namely the second switching speed. If not (“N”), the system returns to step S4. However, if this is the case (“Y”), the process goes to step S6.
  • step S7 the actual angle 0 and the actual speed w are now determined using the EMF observer 17, but otherwise the procedure is analogous to step S4.
  • the second switching speed is greater than the first switching speed.
  • the first switching speed can be greater than the second switching speed, or the two switching speeds are the same.
  • the MTPA logic 13 can also be omitted.
  • either the target I d current I d,ref and the target I q current l q , ref can be calculated from the target actuating torque M ref using other calculation rules or can be converted in the vector control 14 or be output directly from the speed controller 11 and the signal generator 12.
  • the actual angle 0 and/or the actual speed ⁇ can be determined using a sensor instead of an observer 15, for example using at least one Hall sensor installed in the BLDC drive motor 5.
  • a numerical statement can also include exactly the number specified as well as a usual tolerance range, as long as this is not explicitly excluded. Reference symbol list

Landscapes

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

Abstract

L'invention concerne un procédé (S0-S6) de fonctionnement d'un appareil électroménager (1), dans lequel, pour démarrer un moteur d'entraînement à courant continu sans balais (BLDC) (5) de l'appareil électroménager (1), une vitesse de rotation réelle (ω) d'un rotor (7) du moteur d'entraînement BLDC (5) est augmentée d'une manière commandée à partir d'un état de repos au moyen d'un couple de commande cible déterministe (Mref,det), et un angle réel (θ) et la vitesse de rotation réelle (ω) du rotor (7) sont déterminés au moyen d'une injection à haute fréquence, dans l'éventualité où la vitesse de rotation réelle (ω) atteint ou dépasse une première vitesse de rotation de seuil, la vitesse de rotation réelle (ω) est commandée à une vitesse de rotation cible (ωref), et dans l'éventualité où la vitesse de rotation réelle (ω) atteint ou dépasse une seconde vitesse de rotation de seuil, l'angle réel (θ) et la vitesse de rotation réelle (ω) sont déterminés à partir d'un signal EMF. L'invention concerne également un appareil électroménager (1) comprenant un moteur d'entraînement BLDC (5), l'appareil électroménager (1) étant conçu pour mettre en œuvre le procédé (S0-S6). En particulier, l'invention peut être avantageusement utilisée pour démarrer un moteur d'entraînement BLDC, qui entraîne un compresseur alternatif d'un circuit frigorifique d'un appareil frigorifique ménager, en particulier un réfrigérateur.
EP23736032.6A 2022-06-28 2023-06-27 Fonctionnement d'un appareil électroménager comportant un moteur d'entraînement à courant continu sans balais (bldc) Pending EP4548470A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022206532.8A DE102022206532A1 (de) 2022-06-28 2022-06-28 Betreiben eines Haushaltsgeräts mit einem BLDC-Antriebsmotor
PCT/EP2023/067362 WO2024002992A1 (fr) 2022-06-28 2023-06-27 Fonctionnement d'un appareil électroménager comportant un moteur d'entraînement à courant continu sans balais (bldc)

Publications (1)

Publication Number Publication Date
EP4548470A1 true EP4548470A1 (fr) 2025-05-07

Family

ID=87067070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23736032.6A Pending EP4548470A1 (fr) 2022-06-28 2023-06-27 Fonctionnement d'un appareil électroménager comportant un moteur d'entraînement à courant continu sans balais (bldc)

Country Status (5)

Country Link
US (1) US20260012114A1 (fr)
EP (1) EP4548470A1 (fr)
CN (1) CN119452560A (fr)
DE (1) DE102022206532A1 (fr)
WO (1) WO2024002992A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016210443A1 (de) 2016-06-13 2017-12-14 Robert Bosch Gmbh Verfahren zur Anpassung einer Amplitude einer Spannungsinjektion einer mittels eines PWM-gesteuerten Wechselrichters gespeisten, rotierenden, mehrphasigen, elektrischen Maschine
DE102017213069A1 (de) 2017-07-28 2019-01-31 Robert Bosch Gmbh Verfahren zur Bestimmung einer Rotorlage einer elektrischen, rotierenden Maschine sowie eine elektrische, rotierende Maschine zur Durchführung eines solchen Verfahrens
CN109450328A (zh) * 2018-11-20 2019-03-08 北京理工华创电动车技术有限公司 电动车ehps用永磁同步电机无传感器的控制方法及装置
DE102019200426A1 (de) * 2019-01-16 2020-07-16 BSH Hausgeräte GmbH Steuereinrichtung und -verfahren für ein Wäschepflegegerät
DE102020203488A1 (de) 2020-03-18 2021-09-23 BSH Hausgeräte GmbH Haushaltsgerät und Verfahren zum Betreiben eines Haushaltsgerätes
DE102020203489A1 (de) 2020-03-18 2021-09-23 BSH Hausgeräte GmbH Haushaltsgerät und Verfahren zum Betreiben eines Haushaltsgerätes
US11239772B1 (en) * 2021-04-01 2022-02-01 Wolong Electric Group Co. Ltd. Systems and methods for interior permanent magnet synchronous motor control

Also Published As

Publication number Publication date
DE102022206532A1 (de) 2023-12-28
US20260012114A1 (en) 2026-01-08
CN119452560A (zh) 2025-02-14
WO2024002992A1 (fr) 2024-01-04

Similar Documents

Publication Publication Date Title
DE102009057433A1 (de) Motorsteuerung und Trommelwaschmaschine
DE112004001141T5 (de) Algorithmus für eine positionssensorlose Steuerung einer Wechselstrommaschine
DE102008060988A1 (de) Verfahren zum Betreiben eines bürstenlosen Motors, bei dem Steuerungen mit offenem Regelkreis und geschlossenem Regelkreis unterschiedliche Kommutierungsverfahren verwenden
EP1076408B1 (fr) Procédé de démarrage d'un moteur à courant continu sans balais
DE112008003590T5 (de) Magnetpolpositions-Schätzverfahren für einen AC-Synchronmotor
EP3883121A1 (fr) Appareil électroménager et procédé de fonctionnement d'un appareil électroménager
WO2016134877A1 (fr) Procédé de commutation sans capteur
DE102004054504B4 (de) Verfahren zur automatischen Einstellung des Kommutierungswinkels bei bürstenlosen Gleichstrommotoren
BE1031041B1 (de) Antriebssystem
WO2018072810A1 (fr) Procédé d'orientation d'une machine triphasée à démarrage progressif et machine triphasée
WO2024002992A1 (fr) Fonctionnement d'un appareil électroménager comportant un moteur d'entraînement à courant continu sans balais (bldc)
EP3433926B1 (fr) Procédé de détection de position de rotor d'un moteur bldc d'un compresseur à pistons alternatifs, commande de compresseur pour l'exécution du procédé et appareil frigorifique pourvu de cette dernière
BE1030973B1 (de) Antriebssystem
DE10310756A1 (de) Rotationsgeschwindigkeitssuchvorrichtung und Verfahren für einen Induktionsmotor
DE102015203144A1 (de) Haushaltskältegerät mit einem Kältemittelkreislauf und Verfahren zum Betreiben eines Haushaltskältegeräts mit einem Kältemittelkreislauf
EP3883122B1 (fr) Appareil électroménager et procédé de fonctionnement d'un appareil électroménager
EP3683953B1 (fr) Dispositif et procédé de commande pour un lave-linge
DE102022100004A1 (de) Einrichtung zum steuern eines motors und verfahren zum steuern eines motors
WO2022218819A1 (fr) Procédé de régulation à orientation de champ d'un moteur électrique
DE102022103373B4 (de) Verfahren zur Überwachung eines Elektromotors
DE202016008166U1 (de) Vorrichtung zum stromgeregelten Anlauf permanent erregter Elektromotoren
EP3312986B1 (fr) Raccourcissement de la phase de calibrage dans un moteur à réluctance
DE102022116127A1 (de) Verfahren zur Bestimmung eines Rotorwinkels in einer Auslaufphase, Motorsystem und Haushaltsgerät
DE102018119723A1 (de) Verfahren zum Ansteuern eines Elektromotors und Elektromotor
DE102019215854A1 (de) Verfahren zum Betreiben eines bürstenlosen und sensorlosen mehrphasigen Elektromotors

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20250128

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)