ANGLE DETECTION DEVICE, MOTOR DRIVING DEVICE, AND IMAGE FORMING APPARATUS
    1.
    发明申请
    ANGLE DETECTION DEVICE, MOTOR DRIVING DEVICE, AND IMAGE FORMING APPARATUS 有权
    角度检测装置,电机驱动装置和图像形成装置

    公开(公告)号:US20130099708A1

    公开(公告)日:2013-04-25

    申请号:US13649528

    申请日:2012-10-11

    IPC分类号: H02P6/16 G01B7/30

    摘要: Disclosed is an angle detection device including plural sensors that output corresponding sinusoidal signals, wherein each of the sinusoidal signals varies sinusoidally depending on a rotational angle of a rotor of a motor, and each of the sinusoidal signals has a phase that depends on a position of the corresponding sensor; a vector generating unit that generates a vector represented by a result of mutually operating at least two of the sinusoidal signals; a vector rotation unit that rotates the vector by operating the vector and reference sine waves having corresponding phases; and an angle search unit that causes the vector rotation unit to sequentially rotate the vector until a phase of the vector becomes a predetermined phase, and that detects an angle between the vector prior to being rotated and the predetermined phase as the rotational angle of the rotor of the motor.

    摘要翻译: 公开了一种角度检测装置,其包括输出相应的正弦信号的多个传感器,其中每个正弦信号根据电动机的转子的旋转角正弦变化,并且每个正弦信号具有取决于 相应的传感器; 矢量产生单元,其生成由相互操作所述正弦信号中的至少两个的结果表示的矢量; 矢量旋转单元,其通过操作具有相应相位的矢量和参考正弦波来旋转矢量; 以及角度搜索单元,其使所述向量旋转单元顺序旋转所述向量,直到所述向量的相位变为预定相位,并且检测所述向量在旋转之前的角度与所述预定相位之间的角度作为所述转子的旋转角度 的电机。

    MULTI-PHASE ROTARY MACHINE CONTROL APPARATUS AND ELECTRIC POWER STEERING SYSTEM USING THE SAME
    2.
    发明申请
    MULTI-PHASE ROTARY MACHINE CONTROL APPARATUS AND ELECTRIC POWER STEERING SYSTEM USING THE SAME 有权
    多相旋转机控制装置及其电动转向系统

    公开(公告)号:US20130033207A1

    公开(公告)日:2013-02-07

    申请号:US13564022

    申请日:2012-08-01

    IPC分类号: H02P6/16

    摘要: A multi-phase rotary machine control apparatus executes calculation processing of an angle error caused by position error in attaching a rotation angle sensor to a motor. The control apparatus sets d-axis and q-axis current command values to zero. A rotary shaft of the rotary machine is rotated externally. The control apparatus detects phase currents caused by a counter-electromotive force, converts phases and outputs voltage command values so that the current detection values become zero. The control apparatus calculates an angle error based on the voltage command values, and stores the angle error as an angle correction value. The control apparatus corrects a detection value of a rotation angle sensor by the stored angle correction value.

    摘要翻译: 多相旋转机械控制装置执行将旋转角度传感器附接到电动机的位置误差引起的角度误差的计算处理。 控制装置将d轴和q轴电流指令值设定为零。 旋转机械的旋转轴从外部旋转。 控制装置检测由反电动势引起的相电流,转换相位并输出电压指令值,使得电流检测值变为零。 控制装置基于电压指令值计算角度误差,并将角度误差存储为角度校正值。 控制装置通过存储的角度校正值来校正旋转角度传感器的检测值。

    Control device for alternating current motor
    4.
    发明授权
    Control device for alternating current motor 有权
    交流电机控制装置

    公开(公告)号:US09041325B2

    公开(公告)日:2015-05-26

    申请号:US13407763

    申请日:2012-02-29

    IPC分类号: H02P21/00 H02P21/14

    摘要: A control device for an alternating current motor according to embodiments includes a current distributor and a phase estimator. The current distributor divides a torque command by using a control phase and outputs a component that contributes to a mechanical output of the motor as a δ-axis current command and a component that does not contribute to the mechanical output as a γ-axis current command. The phase estimator computes a phase at which a γ-axis component of an addition amount of the output of the current controller and a voltage drop amount of inductance of the motor becomes zero and outputs the computed phase as the control phase.

    摘要翻译: 根据实施例的用于交流电动机的控制装置包括电流分配器和相位估计器。 电流分配器通过使用控制相位分压转矩指令,并将作为δ轴电流指令的有助于机械输出的电动机的分量和对机械输出无贡献的分量输出为γ轴电流指令 。 相位估计器计算电流控制器的输出的相加量的γ轴分量和电动机的电压降的电压量为零的相位,并输出计算出的相位作为控制相位。

    LOAD DRIVE CONTROL SYSTEM FOR HYBRID VEHICLE AND METHOD OF CONTROLLING HYBRID VEHICLE
    5.
    发明申请
    LOAD DRIVE CONTROL SYSTEM FOR HYBRID VEHICLE AND METHOD OF CONTROLLING HYBRID VEHICLE 有权
    用于混合车辆的负载驱动控制系统和控制混合动力车辆的方法

    公开(公告)号:US20140167663A1

    公开(公告)日:2014-06-19

    申请号:US14078537

    申请日:2013-11-13

    IPC分类号: H02P6/00

    摘要: A load drive control system for a hybrid vehicle includes a zero current control execution device and an error compensating device. The zero current control execution device is configured to control a converter to output a substantially constant raised voltage that is higher than an inductive voltage generated in an electric motor. The error compensating device is configured to compensate for an attachment error of a first position detector based on a d-axis voltage command value for the electric motor calculated during zero current control.

    摘要翻译: 用于混合动力车辆的负载驱动控制系统包括零电流控制执行装置和误差补偿装置。 零电流控制执行装置被配置为控制转换器以输出高于在电动机中产生的感应电压的基本恒定的升高电压。 误差补偿装置被配置为基于在零电流控制期间计算的电动机的d轴电压指令值来补偿第一位置检测器的附着误差。

    MOTOR CONTROL APPARATUS AND MOTOR CONTROL METHOD
    6.
    发明申请
    MOTOR CONTROL APPARATUS AND MOTOR CONTROL METHOD 有权
    电机控制装置和电机控制方法

    公开(公告)号:US20140049202A1

    公开(公告)日:2014-02-20

    申请号:US13792201

    申请日:2013-03-11

    IPC分类号: H02P21/14

    摘要: A motor control apparatus according to the embodiment includes a rotational position estimating unit, a change amount estimating unit, and an inductance estimating unit. The rotational position estimating unit estimates a rotational position of a rotor from a motor parameter including a q-axis inductance of a motor on a basis of an output current to the motor and a voltage reference. The change amount estimating unit estimates a change amount of an output torque with respect to a current phase change of the motor corresponding to a high frequency signal whose frequency is higher than a drive frequency of the motor. The inductance estimating unit estimates an inductance value that obtains a maximum torque on a basis of the change amount as the q-axis inductance.

    摘要翻译: 根据实施例的电动机控制装置包括旋转位置估计单元,变化量估计单元和电感估计单元。 旋转位置估计单元基于电动机的输出电流和电压基准从包括电动机的q轴电感的电动机参数估计转子的旋转位置。 变化量估计单元估计与频率高于电动机的驱动频率的高频信号相对应的电动机的当前相位变化的输出转矩的变化量。 电感估计单元估计基于作为q轴电感的变化量获得最大转矩的电感值。

    APPARATUS AND METHOD FOR RESTARTING MEDIUM VOLTAGE INVERTER
    9.
    发明申请
    APPARATUS AND METHOD FOR RESTARTING MEDIUM VOLTAGE INVERTER 有权
    用于恢复中压电压逆变器的装置和方法

    公开(公告)号:US20160111953A1

    公开(公告)日:2016-04-21

    申请号:US14866690

    申请日:2015-09-25

    申请人: LSIS CO., LTD.

    IPC分类号: H02M1/36 H02P21/14 H02P27/06

    摘要: An apparatus for restarting a medium voltage inverter is disclosed, wherein the medium voltage inverter can be restarted by estimating a rotor speed when an input power returns from an instantaneous defective state to a normal state, whereby a time to restart the medium voltage inverter can be reduced by a simple configuration to dispense with the need to wait until the rotor speed reaches zero speed.

    摘要翻译: 公开了一种用于重新启动中压逆变器的装置,其中,当输入功率从瞬时故障状态返回到正常状态时,可以通过估计转子速度来重新启动中压逆变器,从而可以重新启动中压逆变器的时间 减少了一个简单的配置,免除了等待直到转子速度达到零速度的需要。

    Control device for rotary machine
    10.
    发明授权
    Control device for rotary machine 有权
    旋转机控制装置

    公开(公告)号:US09130501B2

    公开(公告)日:2015-09-08

    申请号:US14117770

    申请日:2011-06-27

    摘要: A storage section stores, as stored current values, currents flowing when a voltage application section applies voltage vectors to a three-phase rotary machine. A position estimation section estimates the rotor position of the rotary machine in a stopped state based on the stored current values. An adjustment section adjusts a minimum necessary application time that allows the rotary machine to be magnetically saturated by voltage vector application, to enable rotor position estimation. Further, the adjustment section uses, as an adjustment evaluation value, the magnitude |ΔY| of differential admittance obtained by dividing a summed current value calculated from the stored current values by the voltage amplitude value of the voltage vector instruction when the voltage vector based on the voltage vector instruction is applied with the application time being set at an arbitrary application time, and adjusts the application time based on |ΔY|.

    摘要翻译: 作为存储电流值,存储部存储当电压施加部向三相旋转机施加电压矢量时流动的电流。 位置估计部基于所存储的当前值来估计旋转机器处于停止状态的转子位置。 调整部分调整允许旋转机器通过电压矢量施加磁饱和的最小必要的施加时间,以实现转子位置估计。 此外,调整部使用幅度|&Dgr; Y |作为调整评估值 通过将施加时间设定为任意的施加时间的基于电压矢量指令的电压矢量进行分压,将从存储的电流值计算出的求和电流值除以电压矢量指令的电压振幅值得到的微分导纳, 并根据|&Dgr; Y |调整应用时间。