Control device for synchronous motor
    1.
    发明申请
    Control device for synchronous motor 有权
    同步电机控制装置

    公开(公告)号:US20070069682A1

    公开(公告)日:2007-03-29

    申请号:US10525666

    申请日:2003-08-25

    IPC分类号: H02P1/46

    摘要: It is an object of the invention to provide a control device for a synchronous motor which can detect the position of a magnetic pole from a zero speed without requiring a signal generator. The invention provides a control device for a synchronous motor which drives the synchronous motor through a voltage-operated PWM inverter and controls a torque and a speed of the motor, including means (6-3) for causing a PWM carrier signal to have an arbitrary phase difference between two phases such as UW, VW or WU in three phases of U, V and W, means (11) for extracting a high frequency voltage and a high frequency current which are thus generated from a detecting voltage or a command voltage and a detecting current, and means (12) for estimating a position of a magnetic flux or a position of a magnetic pole by using the high frequency voltage and the high frequency current which are extracted.

    摘要翻译: 本发明的目的是提供一种用于同步电动机的控制装置,其可以从零速度检测磁极的位置,而不需要信号发生器。 本发明提供了一种用于同步电动机的控制装置,其通过电压操作的PWM逆变器驱动同步电动机并且控制电动机的转矩和转速,包括用于使PWM载波信号具有任意的装置(6-3) 在U,V,W三相中的UW,VW,WU两相之间的相位差是指从检测电压或指令电压提取出高频电压和高频电流的装置(11), 检测电流,以及通过使用所提取的高频电压和高频电流来估计磁通量或磁极位置的装置(12)。

    Control device for synchronous motor
    2.
    发明授权
    Control device for synchronous motor 有权
    同步电机控制装置

    公开(公告)号:US07348749B2

    公开(公告)日:2008-03-25

    申请号:US10525666

    申请日:2003-08-25

    IPC分类号: G05B11/28

    摘要: A control device is provided for a synchronous motor, which drives the synchronous motor through a voltage operated PWM inverter and controls a torque and a speed of the motor, including a unit for causing a PWM carrier signal to have an arbitrary phase difference between two phases such UV, VW, or WU in three phases of U, V, and W, a unit for extracting a high frequency voltage and a high frequency current, which are thus generated from a detecting voltage or a command voltage and a detecting current, and a unit for estimating a position of a magnetic flux or position of a magnetic pole by using the high frequency voltage and the high frequency current which are excited.

    摘要翻译: 为同步电动机提供控制装置,其通过电压操作的PWM逆变器驱动同步电动机,并控制电动机的转矩和转速,包括用于使PWM载波信号在两相之间具有任意相位差的单元 U,V,W三相中的UV,VW或WU,用于提取由检测电压或指令电压和检测电流产生的高频电压和高频电流的单元,以及 用于通过使用被激励的高频电压和高频电流来估计磁通量的位置或磁极的位置的单元。

    Motor magnetic pole position estimation device and control device
    3.
    发明申请
    Motor magnetic pole position estimation device and control device 有权
    电机磁极位置估算装置及控制装置

    公开(公告)号:US20060049787A1

    公开(公告)日:2006-03-09

    申请号:US10530173

    申请日:2003-09-25

    IPC分类号: H02P7/00

    CPC分类号: H02P6/185

    摘要: It is an object of the invention to provide an apparatus for estimating a magnetic pole position of a motor in which the amplitudes of high-frequency currents can be adjusted. In the invention, a controlling apparatus for driving a motor (1-1) by a voltage source PWM inverter (1-2), and controlling a torque and speed, or torque, speed, and position of the motor has: means for switching over first means for producing an arbitrary phase difference in PWM carrier signals between respective two phases such as UV, VW, or WU of three or UVW phases, and second means for causing the phase difference between two phases such as V, VW, or WU of three or UVW phases to become zero; means for extracting high-frequency currents in a same frequency band as carrier signals generated by it, from estimated currents; and means (1-4) for estimating a magnetic pole position by using the extracted high-frequency currents.

    摘要翻译: 本发明的目的是提供一种用于估计电动机的磁极位置的装置,其中可以调节高频电流的幅度。

    Motor magnetic pole position estimation device and control device
    4.
    发明授权
    Motor magnetic pole position estimation device and control device 有权
    电机磁极位置估算装置及控制装置

    公开(公告)号:US07157876B2

    公开(公告)日:2007-01-02

    申请号:US10530173

    申请日:2003-09-25

    IPC分类号: H02P6/18

    CPC分类号: H02P6/185

    摘要: It is an object of the invention to provide an apparatus for estimating a magnetic pole position of a motor in which the amplitudes of high-frequency currents can be adjusted.In the invention, a controlling apparatus for driving a motor (1-1) by a voltage source PWM inverter (1-2), and controlling a torque and speed, or torque, speed, and position of the motor has: means for switching over first means for producing an arbitrary phase difference in PWM carrier signals between respective two phases such as UV, VW, or WU of three or UVW phases, and second means for causing the phase difference between two phases such as V, VW, or WU of three or UVW phases to become zero; means for extracting high-frequency currents in a same frequency band as carrier signals generated by it, from estimated currents; and means (1-4) for estimating a magnetic pole position by using the extracted high-frequency currents.

    摘要翻译: 本发明的目的是提供一种用于估计电动机的磁极位置的装置,其中可以调节高频电流的幅度。 在本发明中,用于通过电压源PWM逆变器(1-2)驱动电动机(1 -1)并且控制电动机的转矩和转速,转矩,速度和位置的控制装置具有:用于切换的装置 第一装置用于产生三相或UVW相的相对两相之间的PWM载波信号的任意相位差,例如三相或UVW相的UV,VW或WU,以及用于引起两相(例如V,VW或WU)之间的相位差的第二装置 的三个或UVW相变为零; 用于从估计电流中提取与其产生的载波信号相同频带的高频电流的装置; 以及用于通过使用所提取的高频电流来估计磁极位置的装置(1-4)。

    Motor control device
    5.
    发明授权
    Motor control device 有权
    电机控制装置

    公开(公告)号:US08310183B2

    公开(公告)日:2012-11-13

    申请号:US13487263

    申请日:2012-06-04

    IPC分类号: H02P21/00

    CPC分类号: H02P6/183 H02P21/26

    摘要: A motor control device includes a current profile generator generating a current profile, a pilot voltage operator calculating a pilot pulse voltage, on the basis of the current profile, and adding the pilot pulse voltage to a voltage command on a d axis, a magnetic pole position detector detecting a position of a magnetic pole in the permanent magnet motor, on the basis of the pilot pulse voltage, a polarity identification evaluation current operator calculating a polarity identification evaluation current for identifying a polarity of the magnetic pole in the permanent magnet motor, on the basis of a current value on the d axis in the motor current that has been detected in synchronization with a period of PWM control, and a polarity detector outputting a phase correction amount, on the basis of a deviation between the polarity identification evaluation current and the current profile.

    摘要翻译: 电动机控制装置包括基于电流曲线产生电流分布的电流分布生成器,产生导频脉冲电压的先导电压运算器,并将导频脉冲电压加到ad轴上的电压指令,磁极位置 基于导频脉冲电压,检测器检测永磁电动机中的磁极的位置,极性识别评估电流运算器计算用于识别永磁电动机中的磁极的极性的极性识别评估电流, 基于与PWM控制的周期同步地检测到的电动机电流中的d轴上的电流值的基础,以及基于极性识别评估电流和极性识别评估电流之间的偏差的极性检测器,输出相位校正量 当前配置文件。

    Magnetic pole position estimating method and control apparatus for synchronous motor
    6.
    发明授权
    Magnetic pole position estimating method and control apparatus for synchronous motor 有权
    同步电机磁极位置估算方法及控制装置

    公开(公告)号:US06801011B2

    公开(公告)日:2004-10-05

    申请号:US10472816

    申请日:2003-09-25

    申请人: Kozo Ide

    发明人: Kozo Ide

    IPC分类号: H02P146

    CPC分类号: H02P6/185 H02P21/18

    摘要: The invention has an object to provide a magnetic pole position estimating method and a control apparatus for a synchronous motor which reliably detect the position of a magnetic pole of the synchronous motor to carry out stable control also when a high load is applied or a load is suddenly changed. A coordinate transformer (8) transforms a detected current value is into an impedance observation axis positioned in a place shifted from an estimated magnetic pole position &thgr;{circumflex over ( )} by 45 degrees. A high-frequency impedance estimator (10) estimates high-frequency impedances Zdm and Zqm on two points which are advanced and delayed by an electrical angle of 45 degrees from a &ggr;-axis. A first magnetic pole position estimator (13) estimates a first magnetic pole position estimated value &thgr;{circumflex over ( )} to eliminate a deviation between the high-frequency impedances Zdm and Zqm. A second magnetic pole position estimator (14) inputs a current command value i&dgr;* to estimate an internal phase angle compensating angle &thgr;{circumflex over ( )}r and subtracts the internal phase angle compensating angle &thgr;{circumflex over ( )}r from the first magnetic pole position estimated value &thgr;{circumflex over ( )}, and outputs a second magnetic pole position &thgr;{circumflex over ( )}c.

    摘要翻译: 本发明的目的是提供一种用于同步电动机的磁极位置估计方法和控制装置,其可以在施加高负载或负载时可靠地检测同步电动机的磁极的位置以执行稳定的控制 突然改变了 坐标变换器(8)将检测到的电流值变换成位于从估计磁极位置θ偏移了45度的位置的阻抗观察轴。 高频阻抗估计器(10)在两个点上估计高频阻抗Zdm和Zqm,这两个点与伽马轴的电角度相差45度。 第一磁极位置估计器(13)估计第一磁极位置估计值θ以消除高频阻抗Zdm和Zqm之间的偏差。 第二磁极位置估计器(14)输入电流指令值idelta *以估计内部相位角补偿角度,并从第一磁极位置估计值θ减去内部相位角补偿角度,并输出第二磁极 位置thetac。

    Control device for alternating current motor
    7.
    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。

    Method for estimating induced electromotive force and speed of induction motor, method for correcting misalignment of shaft thereof, and induction motor controller
    8.
    发明授权
    Method for estimating induced electromotive force and speed of induction motor, method for correcting misalignment of shaft thereof, and induction motor controller 有权
    用于估计感应电动机的感应电动势和速度的方法,用于校正其轴的未对准的方法和感应电动机控制器

    公开(公告)号:US06242885B1

    公开(公告)日:2001-06-05

    申请号:US09446892

    申请日:1999-12-30

    IPC分类号: H02P2100

    CPC分类号: H02P21/22

    摘要: A three-phase-to-two-phase converter detects two-phase currents of three-phase stator currents, converts the stator currents into a &ggr;-&dgr; coordinate system to derive a &ggr;-axis current and a &dgr;-axis current. The &ggr;-axis current, the &dgr;-axis current, and voltage command values outputted respectively from a &ggr;-axis current controller and a &dgr;-axis current controller are entered to a stator current and induced electromotive force estimator, which determines estimated values of the stator currents and estimated values of an induced electromotive force in the &ggr;-&dgr; coordinate system.

    摘要翻译: 三相到二相转换器检测三相定子电流的两相电流,将定子电流转换成伽玛三角洲坐标系以导出伽马轴电流和三角形电流。 将分别从γ轴电流控制器和delta轴电流控制器输出的γ轴电流,Δ轴电流和电压指令值输入到定子电流和感应电动势估计器,该电动势估计器确定 定子电流和γ-δ坐标系中感应电动势的估计值。

    Alternating-current motor control apparatus
    9.
    发明授权
    Alternating-current motor control apparatus 有权
    交流电机控制装置

    公开(公告)号:US08330402B2

    公开(公告)日:2012-12-11

    申请号:US12690904

    申请日:2010-01-20

    IPC分类号: H02P21/00

    摘要: An alternating-current motor control apparatus includes a voltage controller configured to output a command voltage vector so that the command voltage vector is time-averaged for time periods, a square-wave voltage generator configured to control, every time period, amplitudes and phases of voltages to be applied to an alternating-current motor, a current detector configured to detect motor currents at a timing synchronized with periods 1/N-th of the time periods, where N is equal to or larger than one, a coordinate transformation section configured to perform coordinate transformation to transform the motor currents into two-phase currents, an envelope extractor configured to extract two-phase currents as waveforms having amplitudes that periodically change from the two-phase currents, and extract envelopes of the waveforms, and a magnetic-pole-position computing section configured to compute a magnetic-pole position using the envelopes.

    摘要翻译: 交流电动机控制装置包括:电压控制器,其被配置为输出指令电压矢量,使得指令电压矢量对于时间段进行时间平均;方波电压发生器,被配置为控制每个时间段的幅度和相位 施加到交流电动机的电压;电流检测器,被配置为在与N等于或大于1的时间段的时间段1 / N之间同步的定时检测电动机电流;坐标变换部分配置 执行坐标变换以将电动机电流转换为两相电流;包络提取器,被配置为将两相电流提取为具有从两相电流周期性变化的幅度的波形,并提取波形的包络线; 磁极位置计算部件,被配置为使用所述包络来计算磁极位置。

    Alternating-current motor control apparatus
    10.
    发明授权
    Alternating-current motor control apparatus 有权
    交流电机控制装置

    公开(公告)号:US08143839B2

    公开(公告)日:2012-03-27

    申请号:US12555808

    申请日:2009-09-09

    摘要: An alternating-current motor control apparatus includes a stator frequency computing unit configured to compute a stator frequency of a motor magnetic flux; a torque error computing unit configured to compute a torque error by using the motor magnetic flux, an estimated current, and a motor current; and a speed estimator configured to estimate a speed of the alternating-current motor by using the stator frequency and the torque error. The speed estimator includes a proportional controller configured to reduce the torque error to zero, and an adaptive filter configured to eliminate a high-frequency component of the torque error.

    摘要翻译: 一种交流电动机控制装置,具备:电动机磁通的定子频率的定子频率计算部; 扭矩误差计算单元,被配置为通过使用电动机磁通量,估计电流和电动机电流来计算转矩误差; 以及速度估计器,被配置为通过使用定子频率和转矩误差来估计交流电动机的速度。 速度估计器包括被配置为将扭矩误差减小到零的比例控制器,以及被配置为消除扭矩误差的高频分量的自适应滤波器。