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35 条记录 (耗时 0.017 秒)

    Control apparatus and control method for AC rotary machine
    2.
    发明授权
    Control apparatus and control method for AC rotary machine 有权
    交流旋转机控制装置及控制方法

    公开(公告)号：US08847528B2

    公开(公告)日：2014-09-30

    申请号：US13809674

    申请日：2010-07-23

    申请人： Sho Kato ,  Hisanori Yamasaki ,  Masaki Kono ,  Keita Hatanaka

    发明人： Sho Kato ,  Hisanori Yamasaki ,  Masaki Kono ,  Keita Hatanaka

    IPC分类号： H02P21/00

    CPC分类号： H02P21/0032 ,  H02P1/40 ,  H02P21/32

    摘要： A control apparatus for an AC rotary machine includes a control circuit, a power converter, a current detector, and a voltage detector. The control circuit includes: an activation current instruction unit which generates a current instruction for activation; and a start phase setting unit which sets an initial rotation phase for activation control, based on the rotation direction of the AC rotary machine just after activation and on the polarity of current detected by the current detector just after activation. Thus, the current amplitude and torque shock just after activation control is started can be reduced, and assured and stable reactivation is allowed without causing the protection operation.

    摘要翻译： AC旋转机械的控制装置包括控制电路，功率转换器，电流检测器和电压检测器。 控制电路包括：激活电流指令单元，其产生用于激活的当前指令; 以及启动相位设定单元，其基于刚刚启动之后的交流旋转机器的旋转方向和刚刚激活之后由电流检测器检测到的电流的极性，设定用于启动控制的初始旋转相位。 因此，可以减少启动控制刚刚开始的电流幅度和转矩冲击，并且允许确保和稳定的再激活而不引起保护操作。

    Solid state motor start method and apparatus
    3.
    发明授权
    Solid state motor start method and apparatus 失效
    固态电动机启动方法和装置

    公开(公告)号：US6160372A

    公开(公告)日：2000-12-12

    申请号：US114889

    申请日：1998-07-14

    申请人： Jon B. Cusack

    发明人： Jon B. Cusack

    IPC分类号： H02P1/40 ,  H02P1/42

    CPC分类号： H02P1/40

    摘要： A motor start circuit for A-C electric motors. A microprocessor-based circuit is used to detect the phase shift that occurs in the motor current as the motor goes from the initial locked-rotor state to the running state. This circuit applies current to a motor `start` winding when the motor is first switched on, but turns off the start winding when the motor achieves sufficient running speed, as indicated by the shift in phase of the current in the motor's `run` winding. For bi-directional motors with two start windings, the microprocessor can apply current to either start winding.

    摘要翻译： A-C电动机的电动机启动电路。 使用基于微处理器的电路来检测当电动机从初始锁定转子状态到运行状态时在电动机电流中发生的相移。 当电机首次接通时，该电路将电流施加到电机的起动绕组，但是当电机达到足够的运行速度时，关闭起动绕组，如电机“运行”绕组中的电流相位偏移所示 。 对于具有两个启动绕组的双向电机，微处理器可以将电流施加到起动绕组。

    METHOD AND DEVICE FOR STARTING AN ELECTRIC MOTOR
    5.
    发明申请
    METHOD AND DEVICE FOR STARTING AN ELECTRIC MOTOR 有权
    用于启动电动机的方法和装置

    公开(公告)号：US20130076279A1

    公开(公告)日：2013-03-28

    申请号：US13702589

    申请日：2011-05-31

    申请人： Falko Abel ,  Eberhard Weidner

    发明人： Falko Abel ,  Eberhard Weidner

    IPC分类号： H02P1/40

    CPC分类号： H02P1/40 ,  H02P6/21

    摘要： A method for starting an electric motor having a rotor, comprising the following steps: —driving the rotor with a first torque in a first rotational direction, wherein a maximum value of the first torque is not higher than a maximum countertorque acting counter to the rotation of the rotor, so that the rotor comes to a standstill in a first stationary position; —driving the rotor starting from the first stationary position in a second rotational direction that is counter to the first rotational direction until the rotor comes to a standstill in a predefined second stationary position; and —starting from the rotor in the first rotational direction starting from the second stationary position.

    摘要翻译： 一种用于启动具有转子的电动机的方法，包括以下步骤：以第一转动方向的第一转矩驱动转子，其中第一转矩的最大值不高于与转动相反的最大逆转矩 的转子，使得转子在第一静止位置停止; 从与所述第一旋转方向相反的第二旋转方向从所述第一静止位置开始转子，直到所述转子在预定义的第二静止位置停止; 并且从第二静止位置开始从第一旋转方向从转子开始。

    Soft starting method and system thereof in the way of wave-skipping with stepped frequency and stepless voltage regulating for a motor
    6.
    发明授权
    Soft starting method and system thereof in the way of wave-skipping with stepped frequency and stepless voltage regulating for a motor 有权
    软启动方法及其系统以跳频和步进电机的无级调压方式进行

    公开(公告)号：US08179082B2

    公开(公告)日：2012-05-15

    申请号：US12225864

    申请日：2007-07-24

    申请人： Xing Li ,  Qiang Zuo ,  Yingsheng Xu ,  Mingqi Si

    发明人： Xing Li ,  Qiang Zuo ,  Yingsheng Xu ,  Mingqi Si

    IPC分类号： H02P1/16 ,  H02P1/30

    CPC分类号： H02P1/40 ,  H02P1/28 ,  H02P1/30 ,  H02P27/16 ,  H02P27/18

    摘要： The invention relates to a soft starting method and system thereof in the way of wave-skipping with stepped frequency and stepless voltage regulating for a motor which can be applied to the large torque starting of AC motor under the condition of a power supply of a industrial frequency supply source and the safe starting of higher load. Trigger signals generated by a control system, in the soft starting method of the invention, act on five sets of anti-parallel thyristor valves connected between the power supply and the motor to conduct a pair of thyristors thereof according to a set frequency and sequence, and the motor is started from a standstill status to full speed in the way of wave-skipping by controlling the sets of the thyristor valves. The method may improve the starting torque for more than 10 times of the traditional motor soft starting of the voltage reduction and control the starting current for about two times of the rated current. The cost thereof is only 20-25% of similar frequency converter.

    摘要翻译： 本发明涉及一种软启动方法及其系统，其以步进频率跳波和无级电压调节的方式，可应用于工业电源的交流电机的大扭矩启动 频率供电源和较高负载的安全启动。 在本发明的软启动方法中，由控制系统产生的触发信号作用于连接在电源和电动机之间的五套反并联晶闸管阀，以根据设定的频率和顺序导通其一对可控硅， 通过控制晶闸管阀组，电机以静止状态从全速开始，以跳波的方式进行。 该方法可以将起动转矩提高10倍以上，传统电机的软起动电压降低，起动电流约为额定电流的两倍。 其成本仅为类似变频器的20-25％。

    System for insuring rotational direction for an alternating current motor
    7.
    发明授权
    System for insuring rotational direction for an alternating current motor 失效
    用于确保交流电动机旋转方向的系统

    公开(公告)号：US4695782A

    公开(公告)日：1987-09-22

    申请号：US904995

    申请日：1986-09-08

    申请人： Girts U. Jatnieks

    发明人： Girts U. Jatnieks

    IPC分类号： H02P1/40 ,  H02P23/00 ,  H02P3/20

    CPC分类号： H02P1/40 ,  H02P23/24

    摘要： A system for insuring the correct rotational direction of a permanent magnet, bi-directional alternating current motor. A sensor driven by the output of the motor provides a time varying voltage signal that is differentiated and detected. The signal is then applied to either agree with or override the output control signal from a conventional motor control circuit. When the system operates in the correct direction, the signal complements the motor control. When the device tries to operate in an incorrect direction, the signal overrides the motor control signal.

    摘要翻译： 用于确保永磁体，双向交流电动机的正确旋转方向的系统。 由电机的输出驱动的传感器提供差分和检测的时变电压信号。 然后将信号应用于与常规电动机控制电路一致或超驰输出控制信号。 当系统以正确的方向运行时，该信号补充电机控制。 当设备尝试以不正确的方向操作时，该信号将覆盖电机控制信号。

    MAGNETIC INDUCTION FIXED MAGNETIC POLE ROTOR MOTOR
    8.
    发明申请
    MAGNETIC INDUCTION FIXED MAGNETIC POLE ROTOR MOTOR 审中-公开

    公开(公告)号：US20170170769A1

    公开(公告)日：2017-06-15

    申请号：US14437687

    申请日：2014-04-30

    申请人： Takeo IWAI

    发明人： Takeo IWAI

    IPC分类号： H02P25/22 ,  H02P1/40 ,  H02P6/16

    CPC分类号： H02P25/22 ,  H02K19/103 ,  H02K2213/12 ,  H02P1/40 ,  H02P6/14 ,  H02P6/16 ,  H02P25/08

    摘要： A rotor having rotation salient poles, a stator having fixed salient poles with a plurality of field winding sets, K control signal output sections outputting signals by detecting a plurality of sections to be formed on a cylindrical body or a disk pivoted to the rotor by a plurality of sensors installed to correspond to the fixed salient poles with the plurality of sections to be detected are opposed to a track formed in a circumferential direction, and a power-feeding control section having control circuits operating according to control signals, controlling directions and intensities of excitation currents, where the rotation salient poles are opposed to at least two salient poles, and the excitation currents are controlled with magnetic fields in the same direction occur in rotation salient poles of the salient poles advanced by at least one and magnetic fields disappear in rotation salient poles.

    Quasi variable frequency motor controller
    10.
    发明授权
    Quasi variable frequency motor controller 有权
    准变频电机控制器

    公开(公告)号：US09350275B2

    公开(公告)日：2016-05-24

    申请号：US14321330

    申请日：2014-07-01

    申请人： Rockwell Automation Technologies, Inc.

    发明人： Kun Wei ,  HaiHui Lu ,  Andrew Jaap ,  David Messersmith ,  Randall Langer ,  Ping Lee

    IPC分类号： H02P1/04 ,  H02P1/16 ,  H02P1/40

    CPC分类号： H02P27/047 ,  H02P1/04 ,  H02P1/16 ,  H02P1/26 ,  H02P1/40 ,  H02P21/28 ,  H02P21/34 ,  H02P27/16

    摘要： An apparatus for a quasi variable frequency motor controller is includes a DFC module that applies a first frequency to a motor as part of a discrete frequency control (“DFC”) method for motor starting. The first frequency includes a discrete frequency in a plurality of discrete frequencies of the DFC method and each discrete frequency includes a frequency lower than a fundamental frequency of an alternating current (“AC”) voltage source providing power to the motor. The apparatus includes a torque module that determines when motor torque generated by the motor reaches a negative torque threshold and a next frequency module that applies a second frequency to the motor in response to the torque module determining that the motor torque has reached the negative torque threshold. The second frequency is a next frequency in the DFC method.

    摘要翻译： 准变频电机控制器的装置包括：DFC模块，其将作为电动机起动的离散频率控制（“DFC”）方法的一部分施加于电动机的第一频率。 第一频率包括在DFC方法的多个离散频率中的离散频率，并且每个离散频率包括低于向电动机提供电力的交流（“AC”）电压源的基频的频率。 该装置包括扭矩模块，其确定电动机产生的电动机扭矩何时达到负转矩阈值;以及下一个频率模块，其响应于转矩模块确定电动机转矩达到负转矩阈值，向电动机施加第二频率 。 第二个频率是DFC方法中的下一个频率。