中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

35 records (took 0.011 seconds)

    潜油井下控制器及控制方法
    2.
    发明申请
    潜油井下控制器及控制方法 审中-公开

    公开(公告)号：WO2015081773A1

    公开(公告)日：2015-06-11

    申请号：PCT/CN2014/089551

    申请日：2014-10-27

    Applicant: 浙江中科德润科技有限公司

    Inventor： 刘杰 ,  朱海军 ,  蔡一

    IPC: H02P25/00 ,  E21B47/008

    CPC classification number: E21B4/04 ,  E21B43/128 ,  H02P6/34

    Abstract: 一种潜油井下控制器，包括机械单元、传感器单元、密封单元、散热单元和控制单元，其中机械单元包括主壳体（15），在主壳体内部设有控制单元、传感器单元和散热单元，主壳体的前端通过联接套筒（3）与密封单元相连，后端通过圆形堵盖（13）与底部接头（14）相连。该控制器采用井下直接驱动电机的方式，使得在井下实时监控电机的运行状态，提高了可靠性。

    RESONANT MOTOR UNIT AND ELECTRIC DEVICE WITH RESONANT MOTOR UNIT
    4.
    发明申请
    RESONANT MOTOR UNIT AND ELECTRIC DEVICE WITH RESONANT MOTOR UNIT 审中-公开
    谐振电机单元和带有谐振电机的电器

    公开(公告)号：WO2012023120A2

    公开(公告)日：2012-02-23

    申请号：PCT/IB2011053665

    申请日：2011-08-19

    Applicant: BRAUN GMBH ,  KLEMM TORSTEN ,  VETTER INGO ,  JUNGNICKEL UWE ,  HEIL BENEDIKT ,  LUECKEL KRIS

    Inventor： KLEMM TORSTEN ,  VETTER INGO ,  JUNGNICKEL UWE ,  HEIL BENEDIKT ,  LUECKEL KRIS

    IPC: A61C17/34 ,  H02P7/29 ,  H02P25/00

    CPC classification number: A61C17/3481 ,  A61C17/221 ,  G01R19/0084 ,  H02P25/032

    Abstract: The present disclosure proposes a resonant motor unit that has a resonant motor, a control unit for driving the resonant motor at a driving frequency, for short-circuiting the resonant motor during at least a first short-circuiting phase in successive driving cycles and for concluding the first short-circuiting phases by switching off the current flow through the resonant motor at least at a predetermined first time instant within the driving cycles, a measurement unit for successively measuring at least a first voltage signal provided by the resonant motor at the predetermined first time instant, and an evaluation unit for determining whether the first voltage signal has changed between successive measurements.

    Abstract translation: 本公开提出一种谐振电动机单元，其具有谐振电动机，用于以驱动频率驱动谐振电动机的控制单元，用于在连续的驱动周期中的至少第一短路阶段期间短路谐振电动机，并且用于结束 所述第一短路相位至少在所述驱动周期内的预定的第一时刻关闭通过所述谐振电动机的电流;测量单元，用于连续测量由所述谐振电动机提供的所述预定的第一电压信号 以及用于确定第一电压信号是否在连续测量之间已经改变的评估单元。

    SPACE VECTOR PWM MODULATOR FOR PERMANENT MAGNET MOTOR DRIVE
    5.
    发明申请
    SPACE VECTOR PWM MODULATOR FOR PERMANENT MAGNET MOTOR DRIVE 审中-公开
    用于永磁电机驱动的空间矢量PWM调制器

    公开(公告)号：WO2004036755A9

    公开(公告)日：2004-06-03

    申请号：PCT/US0332922

    申请日：2003-10-15

    Applicant: INT RECTIFIER CORP ,  HO EDDY YING YIN

    Inventor： HO EDDY YING YIN

    IPC: H02M1/12 ,  H02M1/14 ,  H02M7/5387 ,  H02P3/18 ,  H02P21/00 ,  H02P23/00 ,  H02P25/00 ,  H02P27/00 ,  H02P27/04 ,  H03M

    CPC classification number: H02M7/53873 ,  H02P21/22

    Abstract: A space vector pulse-width modulator (SVPWM) and a method implemented by the modulator. A precalculation module accepts Ua and Ub modulation indexes and in response thereto, outputs modified Ua and Ub information; a sector finder has a U module which receives the modified Ua information and outputs a U sector; and a Z module which receives the U sector and the modified Ub information and outputs a Z sector. The U sector and the Z sector are 2-phase control signals for implementing 2-phase modulation. For 3-phase modulation, the SVPWM and method further possess an active vectors calculation module and an assign vectors module which receive the modified Ua and Ub information and the U sector, and which calculate active vectors for 3-phase modulation; a zero vector selector which receives the Z sector and calculates zero vectors for 3-phase modulation; and a PWM counter block which receives the active vectors and zero vectors and outputs 3-phase control signals for implementing 3-phase modulation. The SVPWM and method may have a symmetrical PWM mode, an asymmetrical PWM mode, or both. Advantageously there may also be a rescale and overmodulation module which receives duration information corresponding to the vectors and in response thereto, detects the occurrence of overmodulation. Overmodulation may be detected in response to a negative zero vector time. The module may respond to overmodulation by clamping the zero vector time to zero and rescaling the active vector times to fit within the PWM cycle. The rescaling may restrict a voltage vector to stay within hexagonal boundaries on the space vector plane, while preserving voltage phase.

    Abstract translation: 空间矢量脉宽调制器（SVPWM）和由调制器实现的方法。 预先计算模块接受Ua和Ub调制指数并响应于此，输出修改的Ua和Ub信息; 扇区搜索器具有U模块，其接收修改的Ua信息并输出U扇区; 以及接收U扇区和修改的Ub信息并输出Z扇区的Z模块。 U扇区和Z扇区是用于实现2相调制的2相控制信号。 对于3相调制，SVPWM和方法进一步具有活动矢量计算模块和分配矢量模块，其接收修改的Ua和Ub信息以及U扇区，并且计算用于3相调制的活动矢量; 零矢量选择器，其接收Z扇区并计算用于3相调制的零矢量; 以及接收有效矢量和零矢量并输出用于实现3相调制的3相控制信号的PWM计数器块。 SVPWM和方法可能具有对称PWM模式，不对称PWM模式或两者。 有利地，还可以存在重调和过调制模块，其接收对应于矢量的持续时间信息，并且响应于此来检测过调制的发生。 响应零矢量时间的负值可能会检测到过调制。 该模块可以通过将零矢量时间钳位为零并重新调整活动矢量时间以适应PWM周期来响应过调制。 重新缩放可以限制电压矢量保持在空间矢量平面上的六边形边界内，同时保持电压相位。

    SPACE VECTOR PWM MODULATOR FOR PERMANENT MAGNET MOTOR DRIVE
    6.
    发明申请
    SPACE VECTOR PWM MODULATOR FOR PERMANENT MAGNET MOTOR DRIVE 审中-公开

    公开(公告)号：WO2004036755A3

    公开(公告)日：2004-04-29

    申请号：PCT/US2003/032922

    申请日：2003-10-15

    Applicant: INTERNATIONAL RECTIFIER CORPORATION ,  HO, Eddy, Ying Yin

    Inventor： HO, Eddy, Ying Yin

    IPC: H02M1/12 ,  H02M1/14 ,  H02P23/00 ,  H02P25/00 ,  H02P27/00 ,  H02P27/04 ,  H02P3/18

    Abstract: A space vector pulse-width modulator (SVPWM) and a method implemented by the modulator. A precalculation module accepts Ua and Ub modulation indexes and in response thereto, outputs modified Ua and Ub information; a sector finder has a U module which receives the modified Ua information and outputs a U sector; and a Z module which receives the U sector and the modified Ub information and outputs a Z sector. The U sector and the Z sector are 2-phase control signals for implementing 2-phase modulation. For 3-phase modulation, the SVPWM and method further possess an active vectors calculation module and an assign vectors module which receive the modified Ua and Ub information and the U sector, and which calculate active vectors for 3-phase modulation; a zero vector selector which receives the Z sector and calculates zero vectors for 3-phase modulation; and a PWM counter block which receives the active vectors and zero vectors and outputs 3-phase control signals for implementing 3-phase modulation. The SVPWM and method may have a symmetrical PWM mode, an asymmetrical PWM mode, or both. Advantageously there may also be a rescale and overmodulation module which receives duration information corresponding to the vectors and in response thereto, detects the occurrence of overmodulation. Overmodulation may be detected in response to a negative zero vector time. The module may respond to overmodulation by clamping the zero vector time to zero and rescaling the active vector times to fit within the PWM cycle. The rescaling may restrict a voltage vector to stay within hexagonal boundaries on the space vector plane, while preserving voltage phase.

    VORRICHTUNG UND VERFAHREN ZUR STEUERUNG ODER REGELUNG EINER BEWEGUNG EINES ZIEHKISSENS EINER ZIEHKISSENPRESSE
    7.
    发明申请
    VORRICHTUNG UND VERFAHREN ZUR STEUERUNG ODER REGELUNG EINER BEWEGUNG EINES ZIEHKISSENS EINER ZIEHKISSENPRESSE 审中-公开

    公开(公告)号：WO2021009285A1

    公开(公告)日：2021-01-21

    申请号：PCT/EP2020/070146

    申请日：2020-07-16

    Applicant: MOOG GMBH

    Inventor： HÄNDLE, Werner ,  HELBIG, Achim

    IPC: H02P27/08 ,  H02P23/16 ,  H02P25/00 ,  B21D24/14 ,  F04B17/03 ,  F04B49/08 ,  F04B49/20

    Abstract: Zusammenfassend betrifft die Erfindung eine Vorrichtung und ein Verfahren zur Steuerung oder Regelung einer Bewegung eines Ziehkissens einer Ziehkissenpresse. Die Vorrichtung weist einen Stellwertgeber (11), einen Drehzahlregler (12), einen Stromregler (13) und eine Motorsteuereinrichtung (14) zum Bereitstellen eines Nennstroms für einen elektrischen Antrieb (15) einer fluidhydraulischen Motorpumpeneinheit (20) zum Bewegen eines Ziehkissens einer Ziehkissenpresse auf. Der Stellwertgeber (11) ist zur Berechnung einer Soll-Drehzahl basierend auf einem Ziehkissenstellwertbefehl und einer Ziehkisseninformation vorgesehen. Der Drehzahlregler (12) berechnet einen Soll-Strom basierend auf der Soll-Drehzahl. Der Stromregler (13) berechnet ein Steuersignal basierend auf dem Soll-Strom und die Motorsteuereinrichtung (14) berechnet den Nennstrom basierend auf dem Steuerstrom. Diesbezüglich kann die Dynamik der Ansteuerung der elektrischen Maschine verbessert werden.

    MAGNETIZATION STATE CONTROL METHOD AND MAGNETIZATION STATE CONTROL DEVICE
    9.
    发明申请
    MAGNETIZATION STATE CONTROL METHOD AND MAGNETIZATION STATE CONTROL DEVICE 审中-公开
    磁化状态控制方法和磁化状态控制装置

    公开(公告)号：WO2017023249A1

    公开(公告)日：2017-02-09

    申请号：PCT/US2015/043151

    申请日：2015-07-31

    Applicant: NISSAN MOTOR CO., LTD. ,  WISCONSIN ALUMNI RESEARCH FOUNDATION

    Inventor： SASAKI, Kensuke ,  FUKUSHIGE, Takashi ,  KATOU, Takashi ,  GAGAS, Brent, S. ,  LORENZ, Robert, D.

    IPC: H02P1/46 ,  H02P21/14 ,  H02P25/00

    CPC classification number: H02P21/141 ,  H02P21/13

    Abstract: A magnetization state control method for a variable magnetization machine, the method includes generating a flux linkage vector while changing a magnetization state of the variable magnetization machine such that a trajectory of the flux linkage vector has a curved clockwise trajectory on a dq-axis plane and a magnitude of the flux linkage vector temporally changes, with the dq-axis plane being a synchronous reference frame with a d-axis pointing in a direction of a permanent magnet flux and a q-axis being 90 degrees ahead of the d-axis in a rotational direction of a rotor.

    Abstract translation: 一种可变磁化机的磁化状态控制方法，该方法包括在改变可变磁化机的磁化状态的同时产生磁通矢量，使得磁通矢量的轨迹在dq轴平面上具有弯曲的顺时针轨迹， 磁通链接矢量的大小随时间变化，其中dq轴平面是同步参考系，其中d轴指向永磁体磁通的方向，并且q轴在d轴之前提前90度 转子的旋转方向。

    MOTOR CONTROLLER
    10.
    发明申请
    MOTOR CONTROLLER 审中-公开
    电机控制器

    公开(公告)号：WO2015019143A2

    公开(公告)日：2015-02-12

    申请号：PCT/IB2014/001407

    申请日：2014-07-30

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： YAMAKAWA, Toshifumi ,  OKAMURA, Masaki ,  TAKAMATSU, Naoyoshi

    IPC: H02P25/00

    CPC classification number: H02P27/08 ,  H02P27/06

    Abstract: Provided is a motor controller for controlling a motor system including a power converter, a smoothing capacitor and a three-phase AC motor. The motor controller includes a generation unit configured to generate a modulation signal by adding a third harmonic signal to a phase voltage command signal, and a control unit configured to control an operation of the power converter using the modulation signal. The third harmonic signal includes a first signal component that causes an absolute value of a signal level of the modulation signal to be greater than an absolute value of a signal level of the phase voltage command signal at a timing in which an absolute value of a signal level of a phase current becomes minimum in each phase.

    Abstract translation: 提供一种用于控制包括功率转换器，平滑电容器和三相AC电动机的电动机系统的电动机控制器。 电动机控制器包括：生成单元，被配置为通过将三次谐波信号与相电压指令信号相加来产生调制信号;以及控制单元，被配置为使用调制信号来控制功率转换器的动作。 第三谐波信号包括第一信号分量，其使得调制信号的信号电平的绝对值大于相电压指令信号的信号电平的绝对值，其中信号的绝对值 相电流的电平在每相中变为最小。

Patent Agency Ranking