METHOD OF OPERATING A MOTOR
    1.
    发明申请
    METHOD OF OPERATING A MOTOR 审中-公开
    操作电机的方法

    公开(公告)号:WO2011031787A1

    公开(公告)日:2011-03-17

    申请号:PCT/US2010/048165

    申请日:2010-09-08

    Abstract: Embodiments of the invention provide a method of operating a motor connected to a power device having a reduced current rating. The motor can include an increased torque constant and/or an increased back electromagnetic force constant in order to decrease a peak current in relation to the reduced current rating of the power device. The method can include increasing a length of time the motor can operate at the peak current without overheating. A phase angle of the motor can be advanced in order to achieve a continuous operating point with the power device having the reduced current rating.

    Abstract translation: 本发明的实施例提供了一种操作连接到具有降低的额定电流的功率器件的电动机的方法。 电动机可以包括增加的转矩常数和/或增加的反向电磁力常数,以便相对于功率器件的降低的额定电流降低峰值电流。 该方法可以包括增加电动机在峰值电流下工作的时间长度,而不会过热。 电动机的相位角可以提前,以便在功率器件具有降低的额定电流的情况下实现连续工作点。

    METHOD OF CONTROLLING A MOTOR
    2.
    发明申请
    METHOD OF CONTROLLING A MOTOR 审中-公开
    控制电机的方法

    公开(公告)号:WO2011031788A3

    公开(公告)日:2011-03-17

    申请号:PCT/US2010/048166

    申请日:2010-09-08

    Abstract: Embodiments of the invention provide methods of controlling a motor, such as a servo motor. One method can include monitoring a current temperature of the motor and a power stage of the motor substantially continuously and substantially in real-time. This method can include determining optimum settings for a first time interval to remove power and the second time interval to provide power in order to deliver maximum output while remaining below the maximum rated temperature of the motor. One method can include pulsing power to the motor for a second time interval after a first time interval has elapsed and tailoring pulse shapes of the power provided to the motor for the second time interval. One method can include calculating a maximum phase current based on the rotor shaft torque for each real-time speed of the motor that correlates to the maximum allowable current draw from the power supply.

    Abstract translation: 本发明的实施例提供了控制诸如伺服电动机的电动机的方法。 一种方法可以包括实质上连续且基本实时地监测马达的当前温度和马达的功率级。 该方法可以包括确定用于第一时间间隔的最佳设置以去除功率,并且第二时间间隔提供功率以便在保持低于电动机的最大额定温度的同时输送最大输出。 一种方法可以包括在第一时间间隔已经过去之后在第二时间间隔内向马达脉动功率并且调整在第二时间间隔内提供给马达的功率的脉冲形状。 一种方法可以包括基于与电动机的最大可允许电流汲取相关的电动机的每个实时速度的转子轴转矩来计算最大相电流。

    METHOD OF CONTROLLING A MOTOR
    5.
    发明申请
    METHOD OF CONTROLLING A MOTOR 审中-公开
    控制电机的方法

    公开(公告)号:WO2011031788A2

    公开(公告)日:2011-03-17

    申请号:PCT/US2010048166

    申请日:2010-09-08

    CPC classification number: H02P1/029 H02P29/032

    Abstract: Embodiments of the invention provide methods of controlling a motor, such as a servo motor. One method can include monitoring a current temperature of the motor and a power stage of the motor substantially continuously and substantially in real-time. This method can include determining optimum settings for a first time interval to remove power and the second time interval to provide power in order to deliver maximum output while remaining below the maximum rated temperature of the motor. One method can include pulsing power to the motor for a second time interval after a first time interval has elapsed and tailoring pulse shapes of the power provided to the motor for the second time interval. One method can include calculating a maximum phase current based on the rotor shaft torque for each real-time speed of the motor that correlates to the maximum allowable current draw from the power supply.

    Abstract translation: 本发明的实施例提供了控制诸如伺服电动机的电动机的方法。 一种方法可以包括实质上连续且基本实时地监测马达的当前温度和马达的功率级。 该方法可以包括确定用于第一时间间隔的最佳设置以去除功率,并且第二时间间隔提供功率以便在保持低于电动机的最大额定温度的同时输送最大输出。 一种方法可以包括在第一时间间隔已经过去之后在第二时间间隔内向马达脉动功率并且调整在第二时间间隔内提供给马达的功率的脉冲形状。 一种方法可以包括基于针对电动机的每个实时速度的转子轴转矩计算最大相电流,该最大相电流与来自电源的最大可允许电流汲取相关。

    VARIABLE SPEED HYDRAULIC PUMP
    7.
    发明申请
    VARIABLE SPEED HYDRAULIC PUMP 审中-公开
    变速液压泵

    公开(公告)号:WO0179697A3

    公开(公告)日:2002-03-14

    申请号:PCT/US0112221

    申请日:2001-04-13

    Abstract: The invention provides a variable speed hydraulic pump designed to operate at a maximum horsepower throughout its pressure range by adjusting motor speed according to motor load parameters. In particular, the variable speed hydraulic pump includes a hydraulic pump unit coupled to a variable speed electric motor by a drive unit and to a hydraulic fluid tank for pressurizing and pumping hydraulic fluid when operated by the motor. A motor controller is electrically connected to the motor to supply drive signals to the motor based on electrical characteristics of the drive signals which are dependent on the load exerted on the motor. Suction from the load is provided by both the main pump and a bidirectional supercharging pump by reversing the direction of the motor and shifting a 4/3 valve to connect the main pump inlet to the load and its outlet to tank. In addition, the controller reduces the motor speed at the maximum rated pressure to just maintain the pressure, to reduce the amount of fluid pumped through the maximum pressure relief valve.

    Abstract translation: 本发明提供了一种变速液压泵,其设计为通过根据电动机负载参数调整电动机速度在其整个压力范围内以最大功率运行。 特别地,变速液压泵包括通过驱动单元连接到变速电动机的液压泵单元和用于在由电动机操作时对液压流体进行加压和泵送的液压油箱。 电动机控制器电连接到电动机,以基于驱动信号的电特性向电动机提供驱动信号,驱动信号取决于施加在电动机上的负载。 从主泵和双向增压泵通过反转电机的方向和移动4/3阀将主泵入口连接到负载及其出口到罐而由负载提供吸力。 此外,控制器将电机速度降低到最大额定压力,以保持压力,以减少通过最大压力释放阀泵送的液体量。

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