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71 条记录 (耗时 0.012 秒)

    Method and device for determining the rotary speed of an electrical machine
    21.
    发明授权
    Method and device for determining the rotary speed of an electrical machine 有权
    用于确定电机转速的方法和装置

    公开(公告)号：US07508153B2

    公开(公告)日：2009-03-24

    申请号：US11634445

    申请日：2006-12-05

    申请人： Matthias Schanzenbach ,  Juergen Hachtel

    发明人： Matthias Schanzenbach ,  Juergen Hachtel

    IPC分类号： G05B11/28

    CPC分类号： G01P3/46 ,  H02P7/29 ,  H02P2203/09

    摘要： A method for determining the rotary speed of an electrical machine, especially of a direct current motor, which is controlled in PWM operation, the tracking voltage of the electrical machine being measured and the rotary speed being ascertained from that. The rotary speed fluctuations are able to be substantially reduced if the electrical machine is controlled using a control signal which has a PWM phase, in which the electrical machine is periodically switched on and off using a prespecified pulse duty factor, and which has a measuring phase in which the electrical machine is switched off. The rotary speed is measured in the measuring phases, in this instance, and is calculated in the PWM phases based on a model.

    摘要翻译： 一种用于确定在PWM操作中控制的电机，特别是直流电动机的转速的方法，正在测量的电机的跟踪电压和从其确定的转速。 如果使用具有PWM相位的控制信号来控制电机，则使用预定的脉冲占空因数周期性地接通和关断电机，并且具有测量阶段 电机关闭。 在这种情况下，在测量阶段测量转速，并基于模型在PWM阶段中计算。

    MOTOR DRIVING APPARATUS AND REFRIGERATOR INCLUDING SAME
    26.
    发明申请
    MOTOR DRIVING APPARATUS AND REFRIGERATOR INCLUDING SAME 有权
    电动机驱动装置和制冷机包括相同

    公开(公告)号：US20160061506A1

    公开(公告)日：2016-03-03

    申请号：US14783272

    申请日：2013-04-11

    申请人： LG ELECTRONICS INC.

    发明人： Hyun Sook SONG ,  Ho Hyun SON ,  Myung Keun YOO

    IPC分类号： F25B49/02 ,  H02P1/04 ,  H02P23/14 ,  F25B39/02

    CPC分类号： F25B49/025 ,  F25B39/02 ,  F25B2600/021 ,  F25B2600/112 ,  F25B2600/23 ,  H02P1/04 ,  H02P6/18 ,  H02P23/14 ,  H02P2203/09 ,  Y02B30/741

    摘要： The present invention relates to a motor driving apparatus and a refrigerator including the same. A motor driving apparatus according to an embodiment of the present invention comprises: a signal delay unit for delaying an input speed order signal; an inverter control unit for outputting an inverter switching control signal, on the basis of the speed order signal delayed by the signal delay unit; and an inverter for converting an input operation direct current power into a predetermined alternating current power, on the basis of a switching operation according to the inverter switching control signal, and driving a motor using the converted alternating current power. Therefore, it is possible to prevent starting failure and reduce noise.

    摘要翻译： 电动机驱动装置及其制造方法技术领域本发明涉及一种电动机驱动装置及其制造方法。 根据本发明实施例的电动机驱动装置包括：信号延迟单元，用于延迟输入速度指令信号; 逆变器控制单元，用于基于由信号延迟单元延迟的速度指令信号输出逆变器切换控制信号; 以及逆变器，其基于根据逆变器切换控制信号的切换操作，并且使用所述转换的交流电力来驱动电机，将输入的操作直流电力转换为预定的交流电力。 因此，可以防止起动故障，降低噪音。

    High resolution motor speed for closed-loop speed control
    27.
    发明授权
    High resolution motor speed for closed-loop speed control 有权
    高分辨率电机速度用于闭环速度控制

    公开(公告)号：US09260903B1

    公开(公告)日：2016-02-16

    申请号：US14535504

    申请日：2014-11-07

    申请人： Continental Automotive Systems, Inc.

    发明人： Christopher Piechocki

    IPC分类号： H02P7/06 ,  B60J1/17 ,  E05F15/697

    CPC分类号： E05F15/697 ,  H02P6/16 ,  H02P7/28 ,  H02P2203/05 ,  H02P2203/09

    摘要： Measuring a D.C. motor's armature voltage and current and measuring its rotation speed using a Hall-effect sensor enable a particular motor's characteristic equation to be determined empirically. After the equation that models a motor is determined, rotation speed can be determined between Hall-effect sensor signals using real-time measurements of armature voltage and current, which are substituted back into the equation. Current and/or voltage can also be adjusted to increase, decrease or maintain rotation speed.

    摘要翻译： 使用霍尔效应传感器测量直流电动机的电枢电压和电流并测量其转速可以根据经验确定特定电机的特征方程。 在确定了对电机进行建模的方程式后，可以使用实时测量电枢电压和电流的霍尔效应传感器信号之间确定转速，并将其代入方程式。 还可以调节电流和/或电压以增加，降低或保持转速。

    Systems, methods, and devices for demodulating induction motor instantaneous rotor slot harmonic frequency
    28.
    发明授权
    Systems, methods, and devices for demodulating induction motor instantaneous rotor slot harmonic frequency 有权
    用于解调感应电动机瞬时转子槽谐波频率的系统，方法和装置

    公开(公告)号：US09231512B2

    公开(公告)日：2016-01-05

    申请号：US13388556

    申请日：2011-10-15

    申请人： Zhi Gao ,  Larry A. Turner ,  Benoit Leprettre ,  Roy S. Colby

    发明人： Zhi Gao ,  Larry A. Turner ,  Benoit Leprettre ,  Roy S. Colby

    IPC分类号： G01P3/46 ,  H02P23/14 ,  G01R31/34 ,  H02P21/14

    CPC分类号： H02P23/14 ,  G01R31/343 ,  H02P21/18 ,  H02P2203/09 ,  H02P2207/01

    摘要： A method and apparatus to dynamically and adaptively demodulate induction motor instantaneous rotor slot harmonic frequency for line-connected squirrel-cage polyphase induction motors. The instantaneous rotor slot harmonic frequency carries essential information on the instantaneous rotor speed. Based on a correlation between the motor's input power and its rotor slot harmonic frequency, a dynamically varying carrier frequency is computed and used in a rotor slot harmonic frequency detector. The rotor slot harmonic frequency detector is based on a superheterodyne principle. It contains a generalized linear-phase low-pass filter, whose bandwidth is estimated dynamically by a filter bandwidth estimator. The rotor slot harmonic frequency detector also includes a latency compensator, which receives the dynamically varying carrier frequency signal and synchronizes it with the output of a frequency demodulator.

    摘要翻译： 一种用于线路连接的鼠笼式多相感应电动机动态和自适应地解调感应电动机瞬时转子槽谐波频率的方法和装置。 瞬时转子槽谐波频率载有瞬时转子转速的基本信息。 基于电机输入功率与转子槽谐波频率之间的相关性，计算出动态变化的载波频率并在转子槽谐波频率检测器中使用。 转子槽谐波检波器基于超外差原理。 它包含一个广义线性相位低通滤波器，其带宽由滤波器带宽估计器动态估计。 转子槽谐波频率检测器还包括延迟补偿器，其接收动态变化的载波频率信号并将其与频率解调器的输出同步。

    METHOD FOR DETERMINING THE POSITION OF THE ROTOR OF AN ELECTRICAL MACHINE
    29.
    发明申请
    METHOD FOR DETERMINING THE POSITION OF THE ROTOR OF AN ELECTRICAL MACHINE 审中-公开
    用于确定电机转子位置的方法

    公开(公告)号：US20150061641A1

    公开(公告)日：2015-03-05

    申请号：US13980156

    申请日：2012-01-16

    申请人： Rolf Strothmann

    发明人： Rolf Strothmann

    IPC分类号： G01D5/243

    CPC分类号： G01D5/243 ,  H02P6/186 ,  H02P2203/01 ,  H02P2203/09

    摘要： A method for determining the position of the rotor of an electric machine having multiple phases in relation to the stator. The change Δi in the time derivative I of the current I flowing through at least one of the power inputs is determined. The change Δi is caused by a change ΔU in the potential U on at least one of the power inputs of the electric machine. A measurement signal that is representative of a position of the rotor is determined from multiple simultaneously or successively determined changes Δi.

    摘要翻译： 一种用于确定相对于定子具有多相的电机的转子的位置的方法。 确定流经至少一个电源输入的电流I的时间导数I中的变化＆Dgr; i。 变化＆Dgr; i是由电机的至少一个电源输入端的电位U变化引起的。 代表转子位置的测量信号由多个同时或连续确定的变化＆Dgr确定; i。

    Control apparatus for rotating machine
    30.
    发明授权
    Control apparatus for rotating machine 有权
    旋转机控制装置

    公开(公告)号：US08816622B2

    公开(公告)日：2014-08-26

    申请号：US13809215

    申请日：2011-07-26

    申请人： Sho Kato ,  Hisanori Yamasaki ,  Keita Hatanaka ,  Hidetoshi Kitanaka ,  Yoshinori Yamashita

    发明人： Sho Kato ,  Hisanori Yamasaki ,  Keita Hatanaka ,  Hidetoshi Kitanaka ,  Yoshinori Yamashita

    IPC分类号： H02P6/20

    CPC分类号： H02P6/205 ,  H02P21/18 ,  H02P21/26 ,  H02P21/34 ,  H02P2203/05 ,  H02P2203/09

    摘要： A control apparatus for an AC rotating machine that can reliably and stably start up an AC rotating machine, particularly a synchronous motor using a permanent magnet, in position-sensorless vector control thereof, includes: a steady speed calculator that calculates, during steady state control of the AC rotating machine, a rotation angular frequency of the AC rotating machine based on an AC current and voltage commands; and a start-up speed calculator that calculates, during start-up control within a predetermined period after the AC rotating machine has been started up, the rotation angular frequency of the AC rotating machine based on the AC current and the voltage commands. The control apparatus corrects during the start-up control current commands so that the AC voltage amplitude of the voltage commands will be a constant value not more than the maximum output voltage of a power converter.

    摘要翻译： 一种用于在无位置传感器矢量控制中能够可靠且稳定地启动交流旋转机械，特别是使用永久磁铁的同步电动机的交流旋转机械的控制装置包括：稳定速度计算器，其在稳态控制期间计算 交流旋转机的旋转角频率基于交流电流和电压指令; 以及起动速度计算器，其根据所述交流电流和所述电压指令，在所述交流旋转机器启动之后的预定时间段内的启动控制期间计算所述交流旋转机器的旋转角频率。 控制装置在启动控制电流指令期间进行校正，使得电压指令的AC电压振幅将成为不大于功率转换器的最大输出电压的恒定值。