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    MOTOR CONTROL DEVICE
    1.
    发明公开
    MOTOR CONTROL DEVICE 审中-实审

    公开(公告)号：EP4372980A1

    公开(公告)日：2024-05-22

    申请号：EP22841936.2

    申请日：2022-06-28

    申请人： JTEKT Corporation

    发明人： SHOJI, Naoki ,  YOSHIDA, Mitsuko ,  FUCHS, Robert

    IPC分类号： H02P23/00 ,  B62D5/04 ,  B62D6/00

    CPC分类号： B62D15/025 ,  B62D6/008 ,  B62D5/0463 ,  H02P21/0003

    摘要： A motor control unit includes: an assist torque command value generation unit that generates an assist torque command value using steering torque; a manual steering command value generation unit that generates a manual steering command value using the steering torque and the assist torque command value; an integrated angle command value calculation unit that calculates an integrated angle command value by adding the manual steering command value to an automatic steering command value; and a switching unit that switches between a first control for controlling an electric motor based on the assist torque command value and a second control for controlling the electric motor based on the integrated angle command value, based on a switching signal.

    SYSTEMS AND METHODS FOR CONTROLLING A PERMANENT MAGNET SYNCHRONOUS MOTOR
    4.
    发明公开
    SYSTEMS AND METHODS FOR CONTROLLING A PERMANENT MAGNET SYNCHRONOUS MOTOR 审中-公开

    公开(公告)号：EP3371883A1

    公开(公告)日：2018-09-12

    申请号：EP16862798.2

    申请日：2016-11-01

    申请人： Baker Hughes, a GE company, LLC

    发明人： ADEMOYE, Taoridi A.

    IPC分类号： H02P21/22 ,  E21B43/12

    CPC分类号： H02P21/0003 ,  E21B43/128 ,  H02P6/08 ,  H02P21/13 ,  H02P21/18 ,  H02P21/24 ,  H02P27/06

    摘要： Systems and methods for controlling a permanent magnet synchronous motor to eliminate the need to filter a PWM output of the motor's drive system. In one embodiment, the motor's drive transforms measured output currents to a d-q reference frame and uses these to determine demanded Vd and Vq voltages. An inverter angle is determined from the difference between the demanded Vd and Vq voltages. A demanded bus voltage is determined as the square root of the sum of the square of the demanded Vq and the demanded Vd, multiplied by 2/pi. An inverter angle is determined as the arctangent of (−demanded Vd/demanded Vq). The demanded and actual bus voltages are used to determine a firing angle for the converter. The controller uses this information to generate a six-step waveform that can be provided to the motor without requiring output filtering.

    THREE-PHASE NEUTRAL-POINT-CLAMPED POWER CONVERSION DEVICE
    7.
    发明公开
    THREE-PHASE NEUTRAL-POINT-CLAMPED POWER CONVERSION DEVICE 审中-公开
    三相中性点钳位电力转换装置

    公开(公告)号：EP3208931A1

    公开(公告)日：2017-08-23

    申请号：EP15852818.2

    申请日：2015-10-07

    申请人： Meidensha Corporation

    发明人： HAMADA, Shizunori ,  KOBORI, Kenji

    IPC分类号： H02M7/487 ,  H02M7/12 ,  H02M7/48

    CPC分类号： H02P21/14 ,  H02M1/08 ,  H02M5/4585 ,  H02M7/487 ,  H02P21/0003 ,  H02P21/06 ,  H02P21/22 ,  H02P27/14

    摘要： Current control section 2 performs PI control based on deviation between d-axis command current Id_cmd and d-axis detected current Id_det and deviation between q-axis command current Iq_cmd and q-axis detected current Iq_det. Neutral point potential control section 4 calculates corrected command voltage V_cmd' by addition of neutral point control compensation quantity V_cmp to three-phase command voltage V_cmd. Limiter LMT3 outputs limiter processed command voltage V_cmd" by liming the output of corrected command voltage V_cmd'. Three-phase to two-phase converter 5 outputs feedback quantities Vd_back, Vq_back by three-phase to two-phase conversion of the limiter processed command voltage V_cmd". Current control section 2 performs integral control in accordance with quantities resulting from addition of the feedback quantities Vd_back, Vq_back to the deviations. Accordingly, the three-phase neutral point clamed power conversion apparatus performing the PWM control suppresses interference between the current control and the neutral point potential control.

    摘要翻译： 电流控制部2基于d轴指令电流Id_cmd与d轴检测电流Id_det之间的偏差以及q轴指令电流Iq_cmd与q轴检测电流Iq_det之间的偏差来进行PI控制。 中性点电势控制部分4通过将中性点控制补偿量V_cmp与三相指令电压V_cmd相加来计算校正指令电压V_cmd'。 限制器LMT3通过限制校正后的指令电压V_cmd'的输出来输出限制器处理后的指令电压V_cmd“。三相至两相转换器5通过限制器处理后的指令电压的三相至二相转换来输出反馈量Vd_back，Vq_back V_cmd”。 电流控制部2根据偏差的反馈量Vd_back，Vq_back的相加量进行积分控制。 因此，执行PWM控制的三相中性点闭合功率转换设备抑制了电流控制与中性点电位控制之间的干扰。