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公开(公告)号：US12088225B2
公开(公告)日：2024-09-10
申请号：US17812857
申请日：2022-07-15
申请人： ABB Schweiz AG
发明人： Pedro Rodriguez , Rahul Kanchan , Omer Ikram Ul Haq , Qimao Liu , Ingo Stroka
CPC分类号： H02P23/0004 , G05D19/02
摘要： A field of electric drive devices and electric machines, such as electric motors and electric generators for industrial applications and more particularly to a method and an arrangement for controlling vibration of a variable frequency drive controlled electric machine. In the method for controlling vibration of a variable frequency drive controlled electric machine, the resonance frequency/frequencies and the stiffness are determined in a ramp up/ramp down test; amount of damping is determined in an impulse test; a mechanical transfer function is determined in a steady drive test; a vibration control model is determined utilizing said resonance frequency/frequencies, said stiffness, the amount of damping and the mechanical transfer function; and vibration is controlled utilizing the vibration control model.
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公开(公告)号：US12017707B2
公开(公告)日：2024-06-25
申请号：US16970383
申请日：2019-02-08
申请人： NIDEC CORPORATION
发明人： Shuji Endo , Akitoshi Harada , Tomoya Ueda , Masanori Watahiki , Tomonari Mori , Tokuji Tatewaki
摘要： A motor control system includes an inverter and a control calculation unit. The control calculation unit includes a voltage control calculation unit that calculates a voltage command value indicating a voltage to be applied to a motor from the inverter on the basis of a current deviation between the current command value and the actual current detection value, and a compensation calculation unit that compensates at least one of a k-th component and a 1/k-th component in the motor with respect to a signal value on at least one of an upstream side and a downstream side in a signal flow that passes through the voltage control calculation unit. The compensation calculation unit calculates a compensation value on the basis of an actual angular velocity value indicating an angular velocity at which the motor rotates and the target current command value, while also taking into account advance angle control.
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73.发明授权公开(公告)号：US11942884B2
公开(公告)日：2024-03-26
申请号：US18029503
申请日：2021-08-02
发明人： Yasuhiro Yamamoto
CPC分类号： H02P23/04 , B60L15/20 , G05B13/042 , H02P23/12 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/465 , B60L2270/142
摘要： A vehicle system vibration suppression control device is provided for a vehicle system in which a vehicle is driven via an elastic shaft by a motor drive device having a torque control function. The vehicle system vibration suppression control device includes: a section containing an approximate model to which an output torque command is inputted; and a feedback control section. The feedback control section is configured to: employ the approximate model; calculate a motor-accelerating torque component by differentiating a measured speed component of a motor rotational speed; produce a compensation torque component by causing the motor-accelerating torque component to pass through a vibration suppression control filter; and calculate the output torque command by subtracting the compensation torque component from an input torque command. The vibration suppression control filter is expressed by a second order mathematical expression.
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74.发明公开公开(公告)号：US20240014759A1
公开(公告)日：2024-01-11
申请号：US18254259
申请日：2021-01-26
摘要： A control device controls operation of a power conversion apparatus including a converter, a smoothing capacitor, and an inverter. The control device includes a voltage command calculation unit, a torque ripple compensation command calculation unit, and a beat component compensation command calculation unit. The voltage command calculation unit calculates a voltage command including a first compensation command to reduce a first torque ripple pulsating at twice a frequency of a power-supply voltage. The torque ripple compensation command calculation unit calculates a second compensation command to reduce a second torque ripple pulsating at a rotational frequency of a motor. The beat component compensation command calculation unit calculates a third compensation command to reduce a third torque ripple caused by the first torque ripple and by the second torque ripple.
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公开(公告)号：US11863092B2
公开(公告)日：2024-01-02
申请号：US17598873
申请日：2020-01-17
申请人： NIDEC CORPORATION
发明人： Tomonari Mori , Linfeng Lan , Ryo Itaba , Yasuki Kobayashi
摘要： A control device includes: an angular velocity detection unit that detects an angular velocity of a motor; a vibration component removal unit that removes a vibration component in a predetermined band from the angular velocity detected by the angular velocity detection unit by filtering; and a current command calculation unit that calculates a current command value of a drive current for driving the motor according to a torque command value and the angular velocity from which the vibration component has been removed by the vibration component removal unit.
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76.发明公开公开(公告)号：US20230318501A1
公开(公告)日：2023-10-05
申请号：US18029503
申请日：2021-08-02
发明人： Yasuhiro YAMAMOTO
CPC分类号： H02P23/04 , B60L15/20 , G05B13/042 , H02P23/12 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/465 , B60L2270/142
摘要： A vehicle system vibration suppression control device is provided for a vehicle system in which a vehicle is driven via an elastic shaft by a motor drive device having a torque control function. The vehicle system vibration suppression control device includes: a section containing an approximate model to which an output torque command is inputted; and a feedback control section. The feedback control section is configured to: employ the approximate model; calculate a motor-accelerating torque component by differentiating a measured speed component of a motor rotational speed; produce a compensation torque component by causing the motor-accelerating torque component to pass through a vibration suppression control filter; and calculate the output torque command by subtracting the compensation torque component from an input torque command. The vibration suppression control filter is expressed by a second order mathematical expression.
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公开(公告)号：US11757385B2
公开(公告)日：2023-09-12
申请号：US17386539
申请日：2021-07-28
发明人： Keita Shimamoto , Koji Uemura
CPC分类号： H02P6/10 , G01D5/2454 , H02P6/17 , H02P23/0004 , H02P23/04 , H02P23/14 , H02P29/40
摘要： A motor control system includes a motor, an encoder, and a controller including a controller transmitter configured to transmit a torque command to control the motor. The encoder includes a position detector configured to detect a rotational position of the motor, an encoder receiver configured to receive the torque command from the controller transmitter, first disturbance estimating circuitry configured to estimate a first disturbance torque based on the rotational position and the torque command, and an encoder transmitter configured to transmit the rotational position and the first disturbance torque to the controller.
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78.发明公开公开(公告)号：US20230198441A1
公开(公告)日：2023-06-22
申请号：US18067880
申请日：2022-12-19
发明人： Daniel Andersen , Jörg Dannehl , Virgil Ioan Lupu
IPC分类号： H02P23/04
CPC分类号： H02P23/04
摘要： The present invention is directed at a method for operating rotating machinery, such as an electric motor, by means of a variable speed drive (VSD). The variable speed drive is provided for identifying mechanical resonance points by means of a sensor and corresponding speeds of the machinery; storing the speeds at which the identified mechanical resonance points occur; and bypassing the speeds at which the identified mechanical resonance points occur during operation of the rotating machinery. The invention is also directed at a variable speed drive for performing said method.
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公开(公告)号：US11515822B2
公开(公告)日：2022-11-29
申请号：US16865600
申请日：2020-05-04
摘要： An adaptive torque disturbance cancellation method and motor control system for rotating a load are described. The system has: (i) a speed controller for receiving a first input signal indicating a desired motor speed and, in response, for outputting a motor control signal; (ii) current sensing circuitry for sensing current through a motor that rotates in response to the speed controller; (iii) circuitry for storing, into a storage device, history data representative of the current through a motor when the motor operates to rotate the load; and (iv) circuitry for modifying the motor control signal in response to the history data.
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公开(公告)号：US11515764B2
公开(公告)日：2022-11-29
申请号：US16212762
申请日：2018-12-07
申请人： ABB Schweiz AG
发明人： Piotr Lipnicki , Daniel Lewandowski
摘要： The subject of the invention is a method and a device for determination of a torsional deflection of a rotation shaft in the electromechanical drivetrain. The method uses a current and a voltage signals measurement of the driving electrical machine and an angular speed measurement of the shaft of the drivetrain and includes the step of measuring of a voltage UDC of the DC link unit of a converter; the step of calculating a value of a load torque Tload of the driving electrical machine; the step of detecting of an oscillation OSC(Tload) in the load torque Tload and calculation magnitudes of characteristic frequencies of Fast Fourier Transform FFT(UDC) of the voltage UDC of DC link unit; the step of determining of a timestamp indicators tTload for oscillations OSC(Tload) and tFFT of UDC for magnitudes of characteristic frequencies of FFT(UDC) of the voltage UDC of DC link unit; the step of comparing the value of the timestamp indicators tTload and tFFT and determining a torsional deflection of the rotation shaft if tTload
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