WO2023007898A1 - Dispositif de commande de moteur - Google Patents

Dispositif de commande de moteur Download PDF

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Publication number
WO2023007898A1
WO2023007898A1 PCT/JP2022/019426 JP2022019426W WO2023007898A1 WO 2023007898 A1 WO2023007898 A1 WO 2023007898A1 JP 2022019426 W JP2022019426 W JP 2022019426W WO 2023007898 A1 WO2023007898 A1 WO 2023007898A1
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WIPO (PCT)
Prior art keywords
motor
rotation speed
signal
current
target
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PCT/JP2022/019426
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English (en)
Japanese (ja)
Inventor
賢佑 伊藤
智行 河野
泰裕 陶山
圭太郎 吉田
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Ｋｙｂ株式会社
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Publication of WO2023007898A1 publication Critical patent/WO2023007898A1/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
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08—Arrangements for controlling the speed or torque of a single motor

Definitions

  • the present invention relates to a motor control device.
  • Feedback control may be used to control the number of rotations of a three-phase motor so that the target number of rotations is approached while measuring the number of rotations. According to feedback control, the rotation speed converges to the target rotation speed, but overshoot and undershoot may occur in the process of convergence to the target rotation speed.
  • Patent Document 1 describes that overshoot and undershoot can be suppressed by changing the state feedback gain and observer gain for each phase and the response speed of the output of the state quantity estimator.
  • Patent document 1 describes that undershoot can be suppressed, but since complicated calculations are required for each phase, the calculation load may increase. Therefore, it is required to suppress the undershoot while suppressing the computational load.
  • the present invention has been made in view of the above, and it is an object of the present invention to provide a motor control device capable of suppressing undershoot while suppressing computational load.
  • a motor control device for controlling a motor, comprising: and a current control unit configured to control a current value to be applied to the motor based on the comparison result of the comparison unit.
  • the unit applies a current to the motor that can reach the target rotation speed when the measured rotation speed is lower than the target rotation speed, and the measured rotation speed is equal to or higher than the target rotation speed. If so, the application of current to the motor is stopped.
  • FIG. 1 is a schematic circuit diagram of the motor system according to the first embodiment.
  • FIG. 2 is a graph showing an example of the waveform of the number of revolutions of the motor.
  • FIG. 3 is a schematic circuit diagram of a motor system according to another example of the first embodiment;
  • FIG. 4 is a schematic circuit diagram of the motor system according to the second embodiment.
  • FIG. 5 is a schematic circuit diagram of the motor system according to the third embodiment.
  • FIG. 1 is a schematic circuit diagram of the motor system according to the first embodiment.
  • a motor system 1 includes a motor 10 that is a three-phase motor (three-phase alternating current motor), a power supply section 12 , an inverter 14 and a control section 16 .
  • the motor 10 is not limited to a three-phase motor, and may be any type of motor.
  • the motor system 1 converts the DC current from the power supply unit 12 into AC current by the inverter 14 and supplies the converted AC current to the motor 10 to drive the motor 10 .
  • the motor 10 is connected to a driven part P to be driven, and rotates the driven part P.
  • the driven part P is a pump that pressurizes a fluid by rotation, and more specifically an oil pump.
  • the motor 10 drives a pump that pressurizes the fluid by rotation, but the object to be driven is not limited to the pump and may be arbitrary.
  • the power supply unit 12 is a power supply that supplies current to the inverter 14 .
  • the power supply unit 12 supplies direct current to the inverter 14 .
  • the inverter 14 is a circuit that converts the DC current supplied from the power supply unit 12 into AC current and supplies the AC current to the motor 10 .
  • Inverter 14 includes transistors T1, T2, T3, T4, T5 and T6.
  • Transistors T1, T2, T3, T4, T5, and T6 are appropriately referred to as transistors T when they are not distinguished from each other.
  • the transistors T1 and T2 are connected in series with the power supply section 12 . Specifically, the drain of the transistor T1 is connected to the positive side of the power supply section 12, the source of the transistor T1 is connected to the drain of the transistor T2, and the source of the transistor T2 is connected to the negative side of the power supply section 12. connected to the side. A connection point between the source of the transistor T1 and the drain of the transistor T2 is connected to the U-phase of the motor 10 (in this example, the U-phase stator coil, not shown).
  • the transistors T3 and T4 are connected in series to the power supply section 12. Specifically, the drain of the transistor T3 is connected to the positive side of the power supply section 12, the source of the transistor T3 is connected to the drain of the transistor T4, and the source of the transistor T4 is connected to the negative side of the power supply section 12. connected to the side. A connection point between the source of the transistor T3 and the drain of the transistor T4 is connected to the V-phase of the motor 10 (in this example, the V-phase stator coil, not shown). The transistors T3 and T4 are connected to the power supply section 12 in parallel with the transistors T1 and T2.
  • the transistors T5 and T6 are connected in series with the power supply section 12 . Specifically, the drain of the transistor T5 is connected to the positive side of the power supply section 12, the source of the transistor T5 is connected to the drain of the transistor T6, and the source of the transistor T6 is connected to the negative side of the power supply section 12. connected to the side. A connection point between the source of the transistor T5 and the drain of the transistor T6 is connected to the W-phase of the motor 10 (in this example, the W-phase stator coil, not shown).
  • the transistors T5 and T6 are connected to the power supply section 12 in parallel with the transistors T1 and T2 and the transistors T3 and T4.
  • the inverter 14 can convert a direct current into an alternating current and supply the alternating current to the U-phase, V-phase, and W-phase of the motor 10 . That is, it can be said that the power supply unit 12 and the inverter 14 constitute a bipolar power supply capable of supplying current (voltage) on the plus side and the minus side. Note that the circuit configuration of the inverter 14 is not limited to the above description and may be arbitrary.
  • a control unit 16 as a motor control device is a device that controls the current supplied to the motor 10 .
  • the controller 16 is a so-called ECU (Electronic Control Unit).
  • the controller 16 includes a comparator 20 , a map converter 22 , an amplifier 24 , a current controller 26 , a map converter 28 and an amplifier 30 .
  • the comparison unit 20, the mapping converter 22, the amplifier 24, the current control unit 26, the mapping converter 28, and the amplifier 30 are configured by hardware circuits in this embodiment.
  • the present invention is not limited to this, and at least a portion of the comparison unit 20, the mapping converter 22, the amplifier 24, the current control unit 26, the mapping converter 28, and the amplifier 30 is configured such that an arithmetic circuit such as a CPU reads software (program) from the storage unit. It may be realized by executing
  • the comparison unit 20 compares the measured number of revolutions, which is the measured value of the number of revolutions of the motor 10 , with the target number of revolutions, which is the target value of the number of revolutions of the motor 10 .
  • the target rotation speed is a value that is appropriately set according to the operating conditions of the driven part P and the like.
  • a signal F ⁇ b>1 indicating the target rotation speed is input to the comparison unit 20 .
  • a position sensor (not shown) sequentially detects the rotation angle of the motor 10 (the rotation angle of the rotor of the motor 10), and a signal R indicating the rotation angle of the motor 10 is sent to the mapping converter 22.
  • the mapping converter 22 performs mapping conversion based on the signal R, that is, based on the rotation angle of the motor 10 indicated by the signal R, thereby calculating a measured rotation speed, which is a measured value of the rotation speed of the motor 10 . That is, the mapping converter 22 converts the signal R indicating the rotation angle of the motor 10 into the signal F2 indicating the measured rotation speed. The map converter 22 outputs the signal F2 to the comparison section 20 . Note that the position sensor is not an essential component.
  • the comparison unit 20 compares the target rotation speed indicated by the input signal F1 and the measured rotation speed indicated by the input signal F2, and generates a signal F indicating the comparison result between the target rotation speed and the measured rotation speed. .
  • the comparator 20 outputs the generated signal F to the amplifier 24 . Since the signal F is a signal indicating the comparison result between the target rotational speed and the measured rotational speed, it can be said that it is a signal for feedback control set based on the deviation between the target rotational speed and the measured rotational speed. Details of the signal F will be described later.
  • the amplifier 24 amplifies the signal F to generate a signal I1 indicating the target current value.
  • the target current value is the target value of the current supplied from the power supply unit 12 to the motor 10 . That is, it can be said that the amplifier 24 converts the signal F indicating the comparison result between the target rotation speed and the measured rotation speed into the signal I1 indicating the target current value. Since the rotation speed of the motor 10 is determined according to the current value supplied to the motor 10, the target current value can also be said to be the current value for reaching the target rotation speed.
  • the current control section 26 controls the current value applied to the motor 10 based on the comparison result of the comparison section 20 .
  • a signal I1 is input from the amplifier 24 to the current control unit 26 .
  • the signal R indicating the rotation angle of the motor 10 and the current supplied from the power supply section 12 to the motor 10 are input to the mapping converter 28 .
  • the mapping converter 28 calculates a measured current value, which is the current value supplied to the motor 10 at the rotation angle indicated by the signal R. That is, the mapping converter 28 generates a signal I2 indicating the measured number of revolutions at that rotation angle from the signal R indicating the rotation angle of the motor 10 and the current supplied to the motor 10 .
  • the mapping converter 28 outputs a signal I2 indicating the measured current value to the current controller 26 .
  • the mapping converter 28 is supplied with a current at a point where the lines of the transistors T1 and T2, the lines of the transistors T3 and T4, and the lines of the transistors T5 and T6 join. That is, the currents supplied to the U-phase, V-phase, and W-phase are input to the mapping converter 28, and the mapping converter 28 outputs the total value of the currents supplied to the U-phase, V-phase, and W-phase. is calculated as the measured current value.
  • the current control unit 26 compares the input signals I1 and I2 to generate a signal I indicating the current value to be supplied to the motor 10 .
  • the current control unit 26 compares the signal I1 and the signal I2 to determine whether the measured current value deviates from the target current value, and outputs a signal so that the current of the target current value is supplied to the motor 10. Generate I.
  • the current control unit 26 outputs the generated signal I to the amplifier 30 .
  • a signal I is a signal for PWM (Pulse Width Modulation) input to the gate of the transistor T. FIG. That is, it can be said that the current control unit 26 generates the signal I of the length of time during which the current of the target current value can be supplied to the motor 10 .
  • the signal I is a signal indicating the result of comparison between the target current value and the measured current value, it can be said that it is a signal for feedback control set based on the deviation between the target current value and the measured current value, and is used for torque control. It can be said that it is Details of the signal I will be described later.
  • the amplifier 30 amplifies the signal I and supplies the amplified signal I to the gate of the transistor T.
  • the transistor T operates during the period in which the signal I is input, and the motor 10 is PWM-controlled.
  • a current corresponding to the length of the period during which the signal I is input is supplied to the motor 10, and the motor 10 rotates.
  • control unit 16 feeds back the rotation speed of the motor 10 based on the rotation speed (comparison between the target rotation speed and the measured rotation speed) and the current value (comparison between the target current value and the measured current value). control.
  • the circuit configuration of the control unit 16 is not limited to the above, and may be arbitrary. For example, it may be a circuit using FPGA (Field Programmable Gate Array), ASIC (Application Specific Integrated Circuit), OPamp (Operational Amplifier), etc. . Further, any system may be used for the transistor T, and any wire connection system for the motor 10 may be used. Either ⁇ connection or Y connection may be used.
  • control unit 16 controls current supply to the motor 10 so as to suppress undershoot. The current control method will be described below.
  • the comparison unit 20 determines whether the measured rotation speed indicated by the signal F2 is lower than the target rotation speed indicated by the signal F1 (whether “measured rotation speed ⁇ target rotation speed”). When the measured rotational speed is lower than the target rotational speed, the comparator 20 generates the signal F so that the signal F indicates the difference between the measured rotational speed and the target rotational speed (target rotational speed - measured rotational speed). . That is, the signal F in this case serves as a command signal to increase the rotational speed by the difference between the measured rotational speed and the target rotational speed.
  • the comparison unit 20 outputs the signal F to the amplifier 24 , which converts the signal into a signal I ⁇ b>1 indicating the target current value and inputs the signal I ⁇ b>1 to the current control unit 26 . Since the signal F is a signal that increases the rotational speed by the difference between the measured rotational speed and the target rotational speed, the target current value indicated by the signal I1 increases the rotational speed by the difference between the measured rotational speed and the target rotational speed. It indicates the current value required for
  • the current control unit 26 compares the signal I1 and the signal I2 to determine whether the measured current value deviates from the target current value, and outputs the signal I so that the current of the target current value is supplied to the motor 10. Generate. That is, the current control unit 26 generates the signal I with a length of time that allows the rotation speed of the motor 10 to be increased by the difference between the measured rotation speed and the target rotation speed. Signal I is amplified by amplifier 30 and applied to the gate of transistor T. FIG. As a result, the transistor T is actuated to supply the motor 10 with a current value capable of increasing the rotational speed by the difference between the measured rotational speed and the target rotational speed. rise to approach
  • the comparison unit 20 outputs the signal F to the amplifier 24 , which converts the signal into a signal I ⁇ b>1 indicating the target current value and inputs the signal I ⁇ b>1 to the current control unit 26 . Since the signal F is a signal instructing not to increase the rotation speed, the target current value indicated by the signal I1 points to zero.
  • the current control unit 26 compares the signal I1 and the signal I2 to determine whether the measured current value deviates from the target current value, and outputs the signal I so that the current of the target current value is supplied to the motor 10. Generate. Since the target current value is zero here, the current control unit 26 outputs the signal I to instruct the current value to be applied to the motor 10 to be zero (to stop the current supply to the motor 10). Generate. Here, for example, the length of time for which the signal I is supplied is set to zero, and the transistor T does not operate because the signal is not supplied to the gate of the transistor T, so that the current supply from the power supply unit 12 to the motor 10 is stopped. be. When the supply of current to the motor 10 is stopped, the rotation speed of the motor 10 gradually decreases due to resistance (for example, the load of the driven part P such as the hydraulic load and the frictional force inside the pump), and reaches the target rotation speed. get closer to
  • the current supply is stopped without applying a negative current to forcibly decrease the rotation speed of the motor 10. (set to zero).
  • FIG. 2 is a graph showing an example of the waveform of the number of revolutions of the motor.
  • the horizontal axis in FIG. 2 is time, the vertical axis is the rotation speed of the motor 10, and the line L0 indicates the target rotation speed.
  • the line L1 applies a negative current to the motor 10 to forcibly reduce the rotation speed of the motor 10 when the measured rotation speed is higher than the target rotation speed.
  • a line L2 indicates an example in which application of current to the motor 10 is stopped when the measured rotation speed is higher than the target rotation speed, as in the present embodiment.
  • the motor control device (control section 16) according to this embodiment is a device that controls the motor 10, which is a three-phase motor, and includes the comparison section 20 and the current control section .
  • the comparison unit 20 compares the measured number of revolutions, which is the measured value of the number of revolutions of the motor 10 , with the target number of revolutions, which is the target value of the number of revolutions of the motor 10 .
  • a current control unit 26 controls the current value applied to the motor 10 based on the comparison result of the comparison unit 20 . When the measured rotation speed is lower than the target rotation speed, the current control unit 26 applies to the motor 10 a current that allows the motor rotation speed to reach the target rotation speed. The application of current to 10 is stopped.
  • the comparison unit 20 when the measured rotation speed is lower than the target rotation speed, the comparison unit 20 sends a signal F to the current control unit 26 to increase the rotation speed by the difference between the measured rotation speed and the target rotation speed.
  • the current control unit 26 applies to the motor 10 a current value capable of increasing the rotational speed by the difference between the measured rotational speed and the target rotational speed.
  • the comparison unit when the measured rotation speed is equal to or higher than the target rotation speed, the comparison unit outputs a signal F indicating that the rotation speed is not to be increased to the current control unit 26, and the current control unit 26 stops applying current to the motor 10. stop.
  • the application of the current to the motor 10 is stopped, so it is possible to appropriately suppress the undershoot.
  • the current control unit 26 controls the current value applied to the motor 10 also based on the measured current value, which is the measured value of the current applied to the motor 10 .
  • the feedback control based on the rotation speed and the feedback control based on the current value can be performed to appropriately control the rotation speed of the motor 10 .
  • the current control unit 26 stops applying current to the motor 10 when the measured rotation speed is equal to or higher than the target rotation speed, thereby causing the rotation speed of the motor 10 to approach the target rotation speed by inertia. . According to the present embodiment, it is possible to appropriately suppress undershoot by gradually reducing the rotational speed of the motor 10 by inertia.
  • the motor 10 is a motor that drives a pump.
  • overshoot is acceptable because if the fluid becomes excessive due to overshoot, the fluid can escape, but if the fluid is insufficient due to undershoot, Undershoot may be unacceptable due to lack of power from the fluid.
  • the current application to the motor 10 is stopped. It is particularly suitable for motors that drive pumps.
  • the motor system 1 has a motor 10 , an inverter 14 , and a control section 16 .
  • the current value to the motor 10 is set to zero when the measured rotation speed is equal to or higher than the target rotation speed. , it is possible to appropriately suppress the undershoot.
  • FIG. 3 is a schematic circuit diagram of a motor system according to another example of the first embodiment.
  • the amplifier 24 includes an integrator and a differentiator, and may generate the signal I1 by performing calculations with reference to signals input in the past.
  • a signal S that instructs the operation behavior of the amplifier 24 may be output to the amplifier 24 according to the comparison result between the measured rotation speed and the target rotation speed.
  • the comparison unit 20 when the measured rotation speed is lower than the target rotation speed, the comparison unit 20 generates a signal S for instructing calculation by referring to past signals as well, and the signal S and the signal F are output to the amplifier 24 . output to By receiving such a signal S, the amplifier 24 refers to the past signal and generates the signal I1.
  • the comparison unit 20 when the measured rotation speed is equal to or higher than the target rotation speed, the comparison unit 20 generates a signal S instructing initialization of the calculation, and outputs the signal S together with the signal F to the amplifier 24 . Furthermore, the comparison unit 20 continues to generate the signal S and output it to the amplifier 24 during the period when the measured rotation speed is equal to or higher than the target rotation speed, so that the measured rotation speed becomes equal to or higher than the target rotation speed. continue to initialize operations for as long as Initializing an operation refers to changing the value of a signal input in the past to an initialized value (zero or a value according to responsiveness) and executing the operation. The amplifier 24 receives such a signal S, initializes it, and then generates the signal I1.
  • the current will flow when the measured rotation speed reaches the target rotation speed, improving the responsiveness of the feedback control. It is possible to suppress the occurrence of undershoot while That is, by initializing the calculation during the period when the measured rotation speed is equal to or higher than the target rotation speed, it is possible to prevent undershoot from occurring due to a command to decrease the rotation speed after the measured rotation speed reaches the target rotation speed. It can be suitably suppressed.
  • the second embodiment differs from the first embodiment in that the current control unit 26 determines whether the measured rotation speed is lower than the target rotation speed.
  • the current control unit 26 determines whether the measured rotation speed is lower than the target rotation speed.
  • FIG. 4 is a schematic circuit diagram of the motor system according to the second embodiment.
  • the comparison unit 20 changes the rotation speed by the difference between the measured rotation speed indicated by the signal F2 and the target rotation speed indicated by the signal F1.
  • a signal F is generated. That is, the comparison unit 20 in the second embodiment outputs the signal F indicating that the rotation speed is changed by the difference between the measured rotation speed and the target rotation speed regardless of whether the measured rotation speed is lower or higher than the target rotation speed.
  • Generate For example, when the measured rotation speed is lower than the target rotation speed, the comparison unit 20 generates a signal to increase the rotation speed by the difference, and when the measured rotation speed is higher than the target rotation speed, rotates by the difference. Generate a signal to lower the number.
  • the comparison unit 20 outputs the signal F to the amplifier 24, where it is converted into a signal I1 indicating the target current value and input to the current control unit 26. Since the signal F is a signal that changes the rotational speed by the difference between the measured rotational speed and the target rotational speed, the target current value indicated by the signal I1 changes the rotational speed by the difference between the measured rotational speed and the target rotational speed. It indicates the current value required for
  • a signal I1 indicating the target current value and a signal I2 indicating the measured current value are input to the current control unit 26 .
  • the current control unit 26 determines whether the measured current value indicated by the signal I2 is lower than the target current value indicated by the signal I1 (whether "measured current value ⁇ target current value"). Since the current value supplied to the motor 10 corresponds to the rotation speed of the motor 10, the current control unit 26 determines whether the measured current value is lower than the target current value, thereby determining whether the measured rotation speed is lower than the target rotation speed. It can be said that it judges whether When the measured current value is lower than the target current value, the current control unit 26 generates the signal I so that the signal I indicates the difference between the measured current value and the target current value (target current value ⁇ measured current value).
  • the signal I in this case serves as a signal for instructing to increase the current supplied to the motor 10 by the difference between the measured current value and the target current value (a signal of a time length during which the current can be increased by the difference).
  • the target current value is a current value for increasing the rotation speed by the difference between the measured rotation speed and the target rotation speed. Therefore, the rotation speed of the motor 10 increases so as to approach the target rotation speed.
  • the current control unit 26 when the measured current value is equal to or greater than the target current value (measured current value ⁇ target current value), the current control unit 26 generates the signal I so as to indicate that the rotation speed is not to be increased. . Specifically, the current control unit 26 generates the signal I such that the signal I instructs the current value to be applied to the motor 10 to be zero. That is, here, the period during which the signal I is applied is set to zero. As a result, the operation of the transistor T is stopped, the supply of current to the motor 10 is stopped, and the rotation speed of the motor 10 gradually decreases due to inertia and approaches the target rotation speed.
  • the signal S that commands the operation behavior of the amplifier may be output.
  • the current control unit 26 when the measured current value is lower than the target current value, the current control unit 26 generates a signal S instructing calculation by referring to past signals as well, and outputs the signal S to the amplifier 24 and the amplifier 30.
  • the amplifier 24 By receiving such a signal S, the amplifier 24 generates the signal I1 with reference to the past signal, and the amplifier 30 amplifies the signal I with reference to the past signal.
  • the current control section 26 when the measured current value is equal to or greater than the target current value, the current control section 26 generates a signal S instructing initialization of the calculation and outputs the signal S to the amplifiers 24 and 30 .
  • the amplifier 24 initializes and generates the signal I1
  • the amplifier 30 initializes and amplifies the signal I.
  • the comparison section 20 outputs the signal F to the current control section 26 to change the rotation speed by the difference between the measured rotation speed and the target rotation speed.
  • the current control unit 26 applies a current of a current value corresponding to the target current value to the motor 10, and when the measured current value is equal to or higher than the target current value. If so, the application of current to the motor 10 is stopped. Since the target current value corresponds to the target rotation speed, feedback control similar to that of the first embodiment can be performed by determining whether or not to apply current to the motor 10 on the current control unit 26 side as in the second embodiment. Therefore, undershoot can be appropriately suppressed.
  • the third embodiment differs from the second embodiment in that an amplifier 32 is provided.
  • an amplifier 32 is provided in the third embodiment.
  • descriptions of parts that are common to the second embodiment will be omitted.
  • FIG. 5 is a schematic circuit diagram of the motor system according to the third embodiment. As shown in FIG. 5, the controller 16b according to the third embodiment includes an amplifier 32. FIG.
  • the signal I2 indicative of the measured current value generated by the map converter 28 is input to the amplifier 32 .
  • the amplifier 32 is an operational amplifier that functions as an observer, and has a function of improving the stability of the measured current value indicated by the signal I2.
  • the amplifier 32 corrects the signal I2 and inputs the corrected signal I2 to the current control section 26 .
  • the current control unit 26 compares the input signals I1 and I2 in the same manner as in the second embodiment, and generates the signal I indicating the current value to be supplied to the motor 10 .
  • Signal I is amplified by passing through amplifiers 30 and 32 and supplied to transistor T.
  • the stability of feedback control can be improved by providing the amplifier 32 that corrects the signal I2.
  • the signal S that commands the operation behavior of the amplifier may be output.
  • the current control unit 26 when the measured current value is lower than the target current value, the current control unit 26 generates a signal S instructing calculation by referring to past signals as well, and outputs the signal S to the amplifier 24 , 30 and 32.
  • amplifier 24 refers to the past signal to generate signal I1
  • amplifier 30 refers to the past signal to amplify signal I
  • amplifier 32 refers to the past signal to generate signal I1. , and corrects the signal I2.
  • the current control section 26 when the measured current value is equal to or higher than the target current value, the current control section 26 generates a signal S instructing initialization of the calculation and outputs the signal S to the amplifiers 24 , 30 , 32 .
  • amplifier 24 Upon receiving such signal S, amplifier 24 initializes and generates signal I1
  • amplifier 30 initializes and amplifies signal I
  • amplifier 32 initializes and generates Correct the signal I2.
  • transistor T may be a bipolar transistor.
  • the transistor T is a gate turn-off thyristor (GTO), an insulated gate bipolar transistor (IGBT), a metal-oxide-semiconductor field-effect transistor (MOSFET). Transitor), silicon carbide metal oxide semiconductor field effect transistor (SiC-MOSFET), gallium nitride field effect transistor (GaN-FET), power semiconductor using gallium oxide (Ga 2 O 3 ).
  • Complementary PNP transistors and P-channel FETs may be used as the transistors T1, T2, and T3.
  • the components described above include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those within the so-called equivalent range. Furthermore, the components described above can be combined as appropriate. Furthermore, various omissions, replacements, or modifications of the constituent elements can be made without departing from the gist of the above-described embodiments and the like.
  • Motor System 10 Motor 12 Power Supply Section 14 Inverter 16 Control Section (Motor Control Device) 20 comparison unit 22, 28 mapping converter 24, 30 amplifier 26 current control unit

Abstract

Selon la présente invention, un sous-dépassement est supprimé tandis qu'une charge de calcul est limitée. Ce dispositif de commande de moteur commande un moteur (10), et comprend : une unité de comparaison (20) destinée à comparer une vitesse de rotation mesurée, qui est une valeur mesurée de la vitesse de rotation du moteur (10), et une vitesse de rotation cible, qui est une valeur cible de la vitesse de rotation du moteur (10) ; et une unité de commande de courant (26) destinée à commander une valeur de courant appliquée au moteur (10), sur la base du résultat de comparaison obtenu par l'unité de comparaison (20). Si la vitesse de rotation mesurée est inférieure à la vitesse de rotation cible, l'unité de commande de courant (26) provoque un courant ayant une valeur de courant avec laquelle la vitesse de rotation du moteur (10) peut atteindre la vitesse de rotation cible à appliquer au moteur (10), et si la vitesse de rotation mesurée est supérieure ou égale à la vitesse de rotation cible, l'unité de commande de courant (26) arrête l'application du courant au moteur (10).
PCT/JP2022/019426 2021-07-29 2022-04-28 Dispositif de commande de moteur WO2023007898A1 (fr)

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JP2021124725A JP2023019761A (ja) 2021-07-29 2021-07-29 モータ制御装置

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JPS61221591A (ja) * 1985-03-18 1986-10-01 Fujitsu Ltd モ−タの安定駆動制御装置
JPS62123981A (ja) * 1985-11-21 1987-06-05 Matsushita Electric Ind Co Ltd ホ−ルｉｃ
JP2011259598A (ja) * 2010-06-08 2011-12-22 Panasonic Electric Works Co Ltd モータ及びそれを用いたポンプ並びに液体循環装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61221591A (ja) * 1985-03-18 1986-10-01 Fujitsu Ltd モ−タの安定駆動制御装置
JPS62123981A (ja) * 1985-11-21 1987-06-05 Matsushita Electric Ind Co Ltd ホ−ルｉｃ
JP2011259598A (ja) * 2010-06-08 2011-12-22 Panasonic Electric Works Co Ltd モータ及びそれを用いたポンプ並びに液体循環装置

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