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    • 92. 发明申请
    • DRIVING APPARATUS FOR ELECTRIC MOTOR
    • 电动马达驱动装置
    • US20170070171A1
    • 2017-03-09
    • US15123488
    • 2015-03-11
    • EBARA CORPORATION
    • Kenta TSUKAKOSHIMasakazu KOMAI
    • H02P21/24H02P6/18H02P27/08
    • H02P21/24H02P6/18H02P21/00H02P27/08
    • A driving apparatus for driving an electric motor, such as a synchronous motor or an induction motor, and more particularly to a driving apparatus which performs a vector control based on an output current of an inverter. The driving apparatus of the present invention includes an inverter, a current detector configured to detect an output current of the inverter, and a vector controller configured to transform the output current, detected by the current detector, into a torque current and a magnetization current and to control the torque current and the magnetization current. The vector controller includes a target-output-voltage determination section configured to determine a target output voltage from the torque current, the magnetization current, an angular velocity of the rotor, and motor constants, and a target-magnetization-current determination section configured to determine a magnetization-current command value based on a deviation between the torque-voltage command value and the target output voltage.
    • 用于驱动诸如同步电动机或感应电动机的电动机的驱动装置,更具体地涉及一种基于逆变器的输出电流进行矢量控制的驱动装置。 本发明的驱动装置包括:逆变器,检测逆变器的输出电流的电流检测器;以及矢量控制器,被配置为将由电流检测器检测的输出电流变换为转矩电流和磁化电流, 以控制转矩电流和磁化电流。 矢量控制器包括:目标输出电压确定部,被配置为根据转矩电流,磁化电流,转子的角速度和电动机常数确定目标输出电压;以及目标磁化电流确定部,被配置为 基于转矩 - 电压指令值与目标输出电压之间的偏差确定磁化 - 电流指令值。
    • 93. 发明授权
    • Motor drive device and electric compressor
    • 电机驱动装置和电动压缩机
    • US09590552B2
    • 2017-03-07
    • US14693064
    • 2015-04-22
    • KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    • Yoshiki NagataTakuya NaruseAkimitsu Ichihara
    • H02P21/00H02P6/04H02P6/18
    • H02P21/26H02P6/185H02P21/0021H02P21/20H02P21/34
    • A motor drive device drives a multi-phase synchronous motor in an electric compressor. The multi-phase synchronous motor includes a rotor that is provided with a permanent magnet and a stator having coils of different phases. The motor drive device includes an inverter that supplies current to the coils and a control unit that controls the inverter. The control unit executes an initial angular position calculation processing of detecting a d-axis and a q-axis as an initial angular position of the rotor, a rotating processing of rotating the d-axis and the q-axis in a direction opposite to rotation of the rotor, an acceleration processing of accelerating the rotation of the rotor, and a sensorless control processing of controlling the rotation of the rotor.
    • 电动机驱动装置驱动电动压缩机中的多相同步电动机。 多相同步电动机包括具有永磁体的转子和具有不同相线圈的定子。 马达驱动装置包括向线圈供给电流的逆变器和控制逆变器的控制单元。 控制单元执行检测作为转子的初始角位置的d轴和q轴的初始角位置计算处理,使与旋转相反的方向旋转d轴和q轴的旋转处理 的转子加速转子的旋转的加速处理,以及控制转子旋转的无传感器控制处理。
    • 97. 发明授权
    • Method of controlling an electrical machine
    • 电机控制方法
    • US09559623B2
    • 2017-01-31
    • US14014710
    • 2013-08-30
    • Regal Beloit America, Inc.
    • Paul S. Mullin
    • H02P6/04H02P6/20H02P6/18
    • H02P6/20H02P6/181
    • A method of controlling an electrical machine. The electrical machine includes a stator having a core and a plurality of windings, and a rotor disposed adjacent to the stator to interact with the stator. The method includes configuring an amplitude value and frequency values of a three-phase alternating current (AC) voltage startup signal having an amplitude and a frequency, providing the three-phase alternating current (AC) voltage startup signal to the plurality of windings, and altering the frequency of the three-phase AC voltage startup signal according to a preprogrammed frequency ramp function defined by the frequency values. The method further includes discontinuing the three-phase AC voltage startup signal after the frequency ramp function has completed, and switching to a back electromotive force (BEMF) control mode after discontinuing the three-phase AC voltage startup signal.
    • 一种控制电机的方法。 电机包括具有芯和多个绕组的定子,以及与定子相邻设置的与定子相互作用的转子。 该方法包括配置具有振幅和频率的三相交流(AC)电压启动信号的振幅值和频率值,向多个绕组提供三相交流(AC)电压启动信号,以及 根据由频率值定义的预编程频率斜坡功能,改变三相交流电压启动信号的频率。 该方法还包括在频率斜坡功能完成之后停止三相交流电压启动信号,并且在停止三相AC电压启动信号之后切换到反电动势(BEMF)控制模式。
    • 98. 发明授权
    • Method of estimating rotational position of motor, and control apparatus of motor
    • 电机旋转位置估算方法及电机控制装置
    • US09548687B2
    • 2017-01-17
    • US15015655
    • 2016-02-04
    • Nidec Singapore PTE., Ltd.Nidec Corporation
    • Ju Feng
    • H02P1/04H02P6/18
    • H02P6/183
    • A method of estimating a rotational position of a motor having saliency, the method including the steps of a) superimposing, on a drive voltage for the motor, a measuring voltage having a predetermined frequency higher than a frequency of the drive voltage to generate three-phase voltages, and supplying the three-phase voltages to a stationary portion of the motor; b) in parallel with step a), extracting components of the predetermined frequency in three-phase currents flowing in the stationary portion as first, second, and third extracted currents; c) multiplying the first and second extracted currents together to acquire a first composite signal, multiplying the second and third extracted currents together to acquire a second composite signal, and multiplying the first and third extracted currents together to acquire a third composite signal; d) subjecting the first, second, and third composite signals to low-pass filtering to acquire first, second, and third filtered signals, respectively, the low-pass filtering passing low-frequency components including the frequency of the drive voltage; and e) acquiring a rotational position of the rotating portion based on the first, second, and third filtered signals.
    • 一种用于估计具有凸极的电动机的旋转位置的方法,所述方法包括以下步骤:a)将具有高于所述驱动电压的频率的预定频率的测量电压叠加在所述电动机的驱动电压上, 并将三相电压提供给电动机的静止部分; b)与步骤a)并行,提取在静止部分中流动的三相电流中的预定频率的分量作为第一,第二和第三提取电流; c)将第一和第二提取电流相乘以获得第一复合信号,将第二和第三提取电流相乘以获得第二复合信号,并将第一和第三提取电流相乘以获得第三复合信号; d)对第一,第二和第三复合信号进行低通滤波以分别获取第一,第二和第三滤波信号,通过包括驱动电压频率的低频分量的低通滤波; 以及e)基于所述第一,第二和第三滤波信号获取所述旋转部分的旋转位置。