WO2019168356A1 - Dispositif d'entraînement de moteur - Google Patents

Dispositif d'entraînement de moteur Download PDF

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Publication number
WO2019168356A1
WO2019168356A1 PCT/KR2019/002396 KR2019002396W WO2019168356A1 WO 2019168356 A1 WO2019168356 A1 WO 2019168356A1 KR 2019002396 W KR2019002396 W KR 2019002396W WO 2019168356 A1 WO2019168356 A1 WO 2019168356A1
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WO
WIPO (PCT)
Prior art keywords
power consumption
current
motor
speed
command
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Application number
PCT/KR2019/002396
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English (en)
Korean (ko)
Inventor
박준호
조석희
Original Assignee
엘지전자 주식회사
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Publication of WO2019168356A1 publication Critical patent/WO2019168356A1/fr

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    • 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
    • H02P27/085—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation wherein the PWM mode is adapted on the running conditions of the motor, e.g. the switching frequency
    • 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
    • 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
    • H02P21/0003—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation

Definitions

  • the present invention relates to a motor drive device, and more particularly, to a motor drive device that can correct the difference in suction power for each product due to the distribution of component performance.
  • Small precision control motors are largely divided into AC motors, DC motors, Brushless DC motors and Reluctance motors.
  • Such small precision control motors are used in many places, such as for AV equipment, computers, home appliances and home facilities, and industrial use.
  • the home appliance field is forming the largest market for small motors.
  • Home appliances are becoming more and more advanced, and accordingly, miniaturization, low noise, and low power consumption of motors are required.
  • Korean Unexamined Patent Publication Korean Unexamined Patent Publication (KR 10-2016-0098886 A1)
  • a driving device for a conventional motor is illustrated, with reference to this, a conventional motor driving device will be described.
  • 1 is a view showing a conventional motor drive device.
  • a conventional motor driving apparatus 10 may include a motor 11, a inverter 12, and a control unit 13.
  • the motor 11 may include a stator wound around a three-phase coil (not shown) and a rotor disposed in the stator and rotating by a magnetic field generated in the three-phase coil.
  • the motor 11 may include an induction motor, a BLDC motor, a reluctance motor.
  • the BLDC motor is a motor without a brush and a commutator.
  • BLDC motors do not generate mechanical frictional losses, sparks or noise in principle, and have excellent speed and torque control.
  • the BLDC motor has no loss due to speed control and has a high efficiency as a small motor, and is widely used in products in the home appliance field.
  • Inverter 12 includes three phase switch elements (not shown).
  • the three-phase switch elements perform an on-off operation based on an operation control signal received from the control unit 13, that is, a pulse width modulation (PWMS) signal (PWMS).
  • PWMS pulse width modulation
  • the three-phase switch elements can convert the input DC voltage (Vdc) into a three-phase AC voltage (Vua, Vvb, Vwc) to supply to the three-phase coil.
  • the control unit 13 determines the ON time period for the ON operation and the OFF time interval for the OFF operation of each of the three-phase switch elements based on the input target command value and the electric angle position of the rotor (PWMS). You can output At this time, the target command value includes a command for the target power consumption.
  • Such a motor drive device includes a plurality of parts for driving.
  • each part can have a certain spread of performance in the manufacturing process. That is, even in the same kind of parts, the performance may be different from each other. Accordingly, motor drive devices including the same component may have a difference in performance depending on the distribution of parts.
  • the conventional motor driving apparatus has a problem in that the performance of each of the plurality of motor driving apparatuses is different when the same command value is used without considering the distribution of component performance.
  • An object of the present invention is to provide a motor drive device capable of reducing the error range of suction force due to the distribution of component performance in a plurality of motor drive devices.
  • the motor driving apparatus compares the command speed of the motor with respect to the target power consumption and the current speed of the motor, and adjusts the target power consumption upward when the current speed is smaller than the command speed, thereby allowing the motor to operate at a constant suction force. To control.
  • the motor driving device can maintain the suction power of the motor driving device within an error range by compensating for the target power consumption when the suction power is reduced due to the scattering of parts. Through this, the motor drive device of the present invention is less affected by the distribution of component performance, and can improve operation reliability and stability, and can secure a high output required for high speed operation.
  • FIG. 1 is a block diagram showing a conventional motor drive device.
  • FIG. 2 is a block diagram illustrating a motor driving apparatus according to an exemplary embodiment of the present invention.
  • FIG. 3 is a block diagram illustrating components of the control unit of FIG. 2.
  • FIG. 4 is a circuit diagram illustrating the inverter of FIG. 2.
  • FIG. 5 is a flowchart illustrating a method of operating a motor driving apparatus according to an exemplary embodiment of the present invention.
  • FIG. 6 is a flowchart illustrating an example of a method of operating a motor driving apparatus according to an exemplary embodiment of the present invention.
  • FIG. 7 is a graph illustrating an improved operating performance of the motor driving apparatus according to the embodiment of the present invention.
  • FIG. 2 is a block diagram illustrating a motor driving apparatus according to an exemplary embodiment of the present invention.
  • the motor driving apparatus may include a motor 110, an inverter 120, and a control unit 130.
  • the motor 110 may include a stator wound with a three-phase coil (not shown) and a rotor disposed in the stator and rotating by a magnetic field generated by the three-phase coil.
  • the motor 110 rotates the permanent magnet included in the rotor according to the magnetic field generated by the three-phase coil.
  • the present invention is not limited to a three-phase motor operated by a three-phase coil, and may further include, for example, a single-phase motor using a single-phase coil.
  • the motor 110 may include an induction motor, a brushless DC motor, a reluctance motor, or the like.
  • the motor 110 may include a Surface-Mounted Permanent-Magnet Synchronous Motor (SMPMSM), an Interior Permanent Magnet Synchronous Motor (IPMSM), and a Synchronous Reluctance Motor. (Synchronous Reluctance Motor; Synrm) and the like.
  • SMPMSM Surface-Mounted Permanent-Magnet Synchronous Motor
  • IPMSM Interior Permanent Magnet Synchronous Motor
  • Synchronous Reluctance Motor Synrm
  • the inverter 120 may include three phase switch elements (not shown).
  • the three-phase switch elements operate by being switched on or switched off when an operation control signal supplied from the control unit 130, that is, a pulse width modulation (PWM) signal is input.
  • PWM pulse width modulation
  • the inverter 120 may convert the input DC voltage Vdc into three-phase AC voltages Vua, Vvb, and Vwc and supply the same to the three-phase coil. Detailed description of the three-phase switch elements will be described later.
  • the control unit 130 when inputting the target command value, PWM for determining the on time interval for the on operation and the off time interval for the off operation of each of the three-phase switch element based on the target command value and the electrical angle position of the rotor
  • the signal PWM can be output. Detailed description of the control unit 130 will be described later with reference to FIG.
  • the motor driving device further includes an input current detector A, a DC stage detector B, a DC stage capacitor C, a motor current detector E, an input voltage detector F, an inductor L1, L2, and the like. can do.
  • an input current detector A a DC stage detector B, a DC stage capacitor C, a motor current detector E, an input voltage detector F, an inductor L1, L2, and the like.
  • the present invention is not limited thereto, and some of the above additional components may be omitted.
  • the input current detector A may detect an input current ig input from the commercial AC power supply 101.
  • a CT current trnasformer
  • a shunt resistor or the like may be used as the input current detector A.
  • the detected input current ig is a discrete signal in the form of a pulse and may be input to the control unit 130 for power control.
  • the input voltage detector F may detect an input voltage vg input from the commercial AC power supply 101. To this end, the input voltage detector F may include a resistor, an amplifier, or the like. The detected input voltage vg is a discrete signal in the form of a pulse and may be input to the control unit 130 for power control.
  • the inductors L1 and L2 may be disposed between the commercial AC power supply 101 and the rectifier 105 to perform an operation such as noise removal.
  • the rectifier 105 rectifies and outputs the commercial AC power supply 101 passing through the inductors L1 and L2.
  • the rectifier 105 may include a full bridge diode connected to four diodes, but the present invention is not limited thereto and may be variously modified and applied.
  • the capacitor C stores the input power.
  • one device is illustrated as a DC-stage capacitor C, but a plurality of devices may be provided to ensure device stability.
  • the DC stage detector B may detect the DC stage voltage Vdc and the DC stage current Idc at both ends of the capacitor C.
  • the DC stage detection unit B may include a resistor, an amplifier, or the like.
  • the detected DC terminal voltage Vdc may be input to the control unit 130 to generate a PWM signal PWMS as a discrete signal in the form of a pulse.
  • the DC terminal voltage Vdc and the DC terminal current IDC provided to the inverter 120 may be used to calculate the current power consumption of the inverter 120.
  • the motor current detector E detects an output current io flowing between the inverter 120 and the three-phase motor 110. That is, the current flowing through the three-phase motor 110 is detected.
  • the motor current detector E may detect the output currents ia, ib, and ic of each phase, or may detect the output currents of the two phases using three-phase equilibrium.
  • the motor current detector E may be located between the inverter 120 and the three-phase motor 110, and a CT (current trnasformer), a shunt resistor, or the like may be used for current detection.
  • CT current trnasformer
  • shunt resistor or the like
  • control unit 130 includes the input current ig detected by the input current detector A, the input voltage vg detected by the input voltage detector F, and the direct current stage detected by the DC terminal detector B. Operation control of the inverter 120 may be performed using the voltage Vdc, the DC terminal current Idc, and the output current io detected by the motor current detector E.
  • FIG. 1 A is a diagrammatic representation of the input current detector A.
  • the detected output current io may be applied to the control unit 130 as a discrete signal in the form of a pulse, and a PWM signal PWM is generated based on the detected output current io.
  • a PWM signal PWM is generated based on the detected output current io.
  • the detected output current io is the three-phase output current ia, ib, ic.
  • FIG. 3 is a block diagram illustrating components of the control unit of FIG. 2.
  • the control unit 130 includes a power consumption measuring unit 210, a power consumption compensating unit 215, a power consumption controlling unit 220, and a three-phase / two-phase axis converting unit ( 232), the position estimator 234, the speed calculator 236, the command value generator 240, the two-phase and three-phase axis converter 250, and the signal generator (hereinafter referred to as 'PWM generator', 260) ) May be included.
  • the power consumption measurement unit 210, power consumption compensation unit 215, and power consumption control unit 220 correspond to the highest level controller in the control unit 130.
  • the power consumption measuring unit 210 receives a DC terminal voltage Vdc and a DC terminal current Idc applied to the inverter 120, and calculates a current power consumption Pr of the inverter 120.
  • the calculated current power consumption Pr is provided to the power consumption controller 220.
  • the power consumption compensator 215 receives the current speed w calculated by the speed calculator 236 and the command speed wr calculated by the power consumption controller 220, and compensates for the power consumption (hereinafter, referred to as compensation consumption). Output power Pc).
  • the power consumption compensator 215 compares the input current speed w with the magnitude of the command speed w. Subsequently, when the current speed w is smaller than the command speed w, the power consumption compensation unit 215 may increase the size of the compensation power consumption Pc. At this time, the initial setting value of the compensation power consumption (Pc) may be '0'. However, the initial setting value of the compensation power consumption Pc may be changed by the user.
  • the power consumption compensator 215 may maintain or reduce the size of the compensation power consumption Pc.
  • the power consumption controller 220 includes a target power consumption Pref input from the user, a current power consumption Pr received from the power consumption measurement unit 210, and a compensation power consumption received from the power consumption compensation unit 215. Pc) is input. Subsequently, the power consumption controller 220 calculates the command speed w based on the target power consumption Pref, the current power consumption Pr, and the compensation power consumption Pc. The command speed w calculated by the power consumption controller 220 is transmitted to the command value generator 240.
  • the power consumption controller 220 includes a comparator 221 and a PID controller 223.
  • the comparator 221 calculates a difference between the target power consumption Pref and the compensation power consumption Pc, and then calculates a value reflecting the compensation power consumption Pc.
  • the value calculated by the comparator 221 is input to the PID controller 223.
  • the comparator 221 may be omitted.
  • the PID controller 223 receives the target power consumption Pref, the current power consumption Pr, and the compensation power consumption Pc to calculate the command speed wr.
  • the PID controller 223 calculates the command speed wr based on the value calculated by the comparator 221.
  • the PID controller 223 basically has the form of a feedback controller and has the form of a proportional-integral-derived controller.
  • the PID controller 223 may be configured in various forms, and the command speed wr may be calculated based on the values of the target power consumption Pref, the current power consumption Pr, and the compensation power consumption Pc.
  • the command speed w output from the power consumption control unit 220 may be increased. This may have an effect of substantially increasing the value of the target power consumption Pref delivered to the power consumption control unit 220. Accordingly, the output of the motor 110 is improved, the suction force of the motor drive device can be increased.
  • the command speed wr output from the power consumption control unit 220 is maintained as it is. Can be reduced. This may have an effect of substantially maintaining or decreasing the value of the target power consumption Pref transmitted to the power consumption control unit 220. Accordingly, the output of the motor 110 can be maintained as it is or somewhat reduced.
  • the control unit 130 of the present invention includes a feedback compensation circuit for compensating the target power consumption (Pref) based on the current speed (w), thereby reducing the suction force due to the dispersion of the performance of the components included in the motor drive device Can be prevented. That is, the control unit 130 may maintain the suction power of the motor drive device within an error range by increasing the target power consumption (Pref) when the suction power is reduced due to the dispersion of the performance of the component.
  • the motor driving apparatus of the present invention can minimize the influence on the distribution of component performance, improve the operation reliability and stability, and can secure a high output required for high speed operation.
  • the three-phase / two-phase axis converter 232 receives the three-phase currents (ia, ib, ic) output from the motor 110, and converts the two-phase currents i ⁇ and i ⁇ of the stationary coordinate system. Subsequently, the three-phase / two-phase axis converter 232 may convert the two-phase currents i ⁇ and i ⁇ of the stationary coordinate system into two-phase currents i d and i q of the rotary coordinate system.
  • the position estimator 234 detects at least one of the three-phase currents ia, ib, and ic and the three-phase voltages Va, Vb, and Vc, and estimates the position H of the rotor included in the motor 110. can do.
  • the speed calculator 236 may be configured based on the position H estimated by the position estimator 234 and at least one of three-phase currents Ia, Ib, and Ic or three-phase voltages Va, Vb, and Vc.
  • the current speed w can be calculated. That is, the speed calculator 236 may calculate the current speed w by dividing the position H by time.
  • the speed calculator 236 may output the electric angle position ⁇ calculated based on the position H and the calculated current speed w.
  • the command value generator 240 may include a current command generator 242 and a voltage command generator 244.
  • the current command generation unit 242 calculates the speed command value w r based on the calculated current speed w and the command speed w provided by the power consumption controller 220.
  • the current command generation unit 242 generates the current command value iq based on the speed command value w r .
  • the current command generation unit 242 performs PI control in the PI controller 243 based on the speed command value wr which is a difference between the current speed w and the command speed w r , and the current command value. (id) can be generated.
  • the current command generator 242 may generate the d-axis current command value id at the time of generating the q-axis current command value i.
  • the value of the d-axis current command value id may be set to zero. .
  • the current command generation unit 242 may further include a limiter (not shown) for limiting the level so that the current command value iq does not exceed the allowable range.
  • the voltage command generation unit 244 is configured based on the d-axis and q-axis currents (id, iq) axially transformed into the rotation coordinate system, and the d-axis, Set the q-axis voltage command value (wd, wq).
  • the voltage command generation unit 244 performs the PI control in the PI controller 245 based on the q-axis current iq and the q-axis current command value Iq, and generates the q-axis voltage command value wq. can do.
  • the voltage command generation unit 244 performs PI control in the PI controller 246 based on the difference between the d-axis current id and the d-axis current command value id, and the d-axis voltage command value wd Can be generated.
  • the value of the d-axis voltage command value wd may be set to 0, corresponding to the case where the value of the d-axis current command value id is set to zero.
  • the voltage command generator 244 may further include a limiter (not shown) for restricting the level so that the d-axis and q-axis voltage command values (vd, vq) do not exceed the allowable range.
  • the d-axis and q-axis voltage command values (vd, vq) generated by the voltage command generation unit 244 are input to the two-phase / three-phase axis conversion unit 250.
  • the two-phase / three-phase axis converting unit 250 receives the position ⁇ calculated by the speed calculating unit 236, the d-axis and q-axis voltage command values (vd, vq), and performs the axis conversion.
  • the two-phase / three-phase axis conversion unit 250 converts from the two-phase rotation coordinate system to a two-phase stop coordinate system.
  • the electric angle position ⁇ calculated by the speed calculator 236 may be used.
  • the two-phase / three-phase axis conversion unit 250 performs a conversion from the two-phase stop coordinate system to a three-phase stop coordinate system. Through this conversion, the two-phase / three-phase axis conversion unit 250 outputs the three-phase output voltage command values (va, vb, vc).
  • the PWM generator 260 generates and outputs an inverter PWM signal PWMS according to the pulse width modulation PWM method based on the three-phase output voltage command values va, vb and vc.
  • the PWM signal PWMS may be converted into a gate driving signal by a gate driver (not shown) and input to the gates of the three-phase switching elements in the inverter 120. Accordingly, the three-phase switching elements in the inverter 120 performs a switching operation.
  • the PWM generator 260 may vary the on time period and the off time period of the PWM signal PWM based on the electric angle position ⁇ and the three phase voltages Va, Vb, and Vc described above.
  • the switch operation of the switch elements can be controlled.
  • FIG. 4 is a circuit diagram illustrating the inverter of FIG. 2.
  • the inverter 120 may include three phase switch elements.
  • the inverter 120 switches on and off by the PWM signal PWMS supplied from the control unit 130, thereby converting the DC voltage Vdc into a three-phase AC voltage Vua, Vvb, having a predetermined frequency or duty. Vwc) and output to the motor 110.
  • the three-phase switch element is a pair of the first to third phase arm switch (Sa, Sb, Sc) and the first to third lower arm switch (S'a, S'b, S'b) connected in series with each other, A total of three pairs of the first to third upper arm switches and the first to third lower arm switches (Sa & S'a, Sb & S'b, Sc & S'c) may be connected in parallel to each other.
  • the first phase and lower arm switches Sa and S'a are three-phase AC voltages Vua, Vvb, and Vwc of the three-phase coils La, Lb, and Lc of the motor 110 as the first phase coil La. ) Supplies a first phase AC voltage Vua.
  • the second phase, the lower arm switch (Sb, S'b) supplies the second phase AC voltage (Vvb) to the second phase coil (Lb), the third phase, lower arm switch (Sc, S'c)
  • the third phase AC voltage Vwc may be supplied to the third phase coil Lc.
  • each of the first to third upper arm switches Sa, Sb, and Sc and the first to third lower arm switches S'a, S'b, and S'b is an input PWM signal per rotation of the rotor. It is possible to control the operation of the motor 110 by supplying the three-phase AC voltages Vua, Vvb, and Vwc to the three-phase coils La, Lb, and Lc by operating on and off once according to the PWMS). .
  • FIG. 5 is a flowchart illustrating a method of operating a motor driving apparatus according to an exemplary embodiment of the present invention.
  • the control unit 130 calculates a current power consumption Pr and a current speed w of the motor 110 (S110). ).
  • the current power consumption may be calculated based on the voltage and current applied to the inverter 120 in the power consumption measurement unit 210.
  • the current speed w is one of the position H of the rotor estimated by the position estimator 234 and the three-phase currents Ia, Ib, and Ic or the three-phase voltages Va, Vb, and Vc of the speed calculator 236. It may be calculated based on at least one. Detailed description thereof has been described above, and thus redundant description will be omitted.
  • the control unit 130 compares the calculated current speed w and the command speed wr (S120).
  • the power consumption compensator 215 receives the current speed w calculated by the speed calculator 236 and the command speed wr calculated by the power consumption controller 220. Output Pc).
  • control unit 130 calculates a compensation value for the target power consumption Pref (S130).
  • the power consumption compensation unit 215 may increase the size of the compensation power consumption Pc.
  • the power consumption compensator 215 may maintain or reduce the size of the compensation power consumption Pc.
  • the initial setting value of the compensation power consumption (Pc) may be '0'. However, the initial setting value of the compensation power consumption Pc may be changed by the user.
  • the control unit 130 reflects the compensation value to the command speed wr based on the compensation power consumption Pc (S140).
  • the compensation power consumption Pc output from the power consumption compensation unit 215 has a positive value
  • the magnitude of the command speed wr output from the power consumption control unit 220 increases.
  • Can be. This may have an effect of substantially increasing the value of the target power consumption Pref delivered to the power consumption control unit 220. Accordingly, the output of the motor 110 is improved, the suction force of the motor drive device can be increased.
  • the compensation power consumption Pc output from the power consumption compensation unit 215 is maintained or has a negative value
  • the command speed wr output from the power consumption control unit 220 is maintained as it is. Can be reduced. Therefore, the output of the motor 110 can also be maintained or reduced.
  • FIG. 6 is a flowchart illustrating an example of a method of operating a motor driving apparatus according to an exemplary embodiment of the present invention.
  • the control unit 130 calculates a current power consumption Pr and a current speed w of the motor 110 (S210).
  • the control unit 130 determines whether the calculated current speed w is smaller than the command speed wr (S220).
  • the power consumption compensator 215 receives the current speed w calculated by the speed calculator 236 and the command speed wr calculated by the power consumption controller 220, and the current speed w and the command.
  • the compensation power consumption Pc is output based on the speed wr.
  • the control unit 130 increases the target power consumption Pref (S230).
  • the power consumption compensator 215 may have an effect of substantially increasing the target power consumption Pref by increasing the size of the compensation power consumption Pc.
  • control unit 130 increases the magnitude of the command speed wr based on the compensation power consumption Pc (S240). As described above, when the compensation power consumption Pc output from the power consumption compensation unit 215 has a positive value, the command speed wr output from the power consumption control unit 220 may be increased. have.
  • control unit 130 controls the motor 110 based on the increased command speed wr (S250). Accordingly, the output of the motor 110 is improved, the suction force of the motor drive device is increased.
  • the method of operating the motor driving apparatus of the present invention includes a feedback compensation circuit that compensates the target power consumption Pref received from the control unit 130 based on the current speed w of the motor 110. It is possible to prevent the suction force from being reduced due to the dispersion in the performance of the parts included in the drive device.
  • FIG. 7 is a graph illustrating an improved operating performance of the motor driving apparatus according to the embodiment of the present invention.
  • ⁇ A> shows the operating performance of the motor driving apparatus according to the embodiment of the present invention
  • ⁇ B> shows the operating performance of the conventional motor driving apparatus.
  • the X axis represents the sample number of the motor drive device
  • the Y axis represents the output (that is, suction force) of the motor drive device.
  • the difference between the maximum value and the minimum value for the suction force of the motor drive device is shown to have an error range of about 10W.
  • the motor driving device of the present invention includes a feedback compensation circuit for compensating the target power consumption (Pref) based on the current speed (w), so that the maximum value and the minimum value of the suction force.
  • the difference of is shown to have an error range of about 2.5W maximum.
  • the motor driving apparatus includes a component (or an operation algorithm) for increasing the target power consumption (Pref) when the suction force is reduced due to the dispersion of the performance of the component, thereby driving the motor. It is possible to reduce the error range of the suction force of the device.
  • the motor driving apparatus can minimize the influence on the distribution of component performance, improve the operation reliability and stability, and can secure a high output required for high speed operation.

Abstract

La présente invention concerne un dispositif d'entraînement de moteur qui compare une vitesse d'instruction de moteur à une vitesse actuelle de moteur par rapport à une consommation d'énergie cible et, si la vitesse actuelle est inférieure à la vitesse d'instruction, augmente la consommation d'énergie cible de manière à réaliser la commande de telle sorte qu'un moteur est actionné de manière à présenter une force d'aspiration dans une plage d'erreur, ce qui permet de corriger une différence de force d'aspiration de chaque produit, causée par une répartition dans les performances de composant.
PCT/KR2019/002396 2018-02-28 2019-02-27 Dispositif d'entraînement de moteur WO2019168356A1 (fr)

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KR10-2018-0024874 2018-02-28
KR1020180024874A KR102509725B1 (ko) 2018-02-28 2018-02-28 모터 구동 장치

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WO2019168356A1 true WO2019168356A1 (fr) 2019-09-06

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Citations (5)

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JP2004282925A (ja) * 2003-03-17 2004-10-07 Toshiba Elevator Co Ltd エレベータ制御装置
KR100712544B1 (ko) * 2006-01-10 2007-05-02 삼성전자주식회사 직류 모터의 반복적 허위 속도 오차 보상 장치 및 방법과이를 이용한 디스크 드라이브
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