Variable speed induction motor with single external power supply and control method thereof
    1.
    发明授权
    Variable speed induction motor with single external power supply and control method thereof 有权
    具有单个外部电源的变速感应电动机及其控制方法

    公开(公告)号:US09257933B2

    公开(公告)日:2016-02-09

    申请号:US13597663

    申请日:2012-08-29

    CPC分类号: H02P25/26 H02P27/05

    摘要: A single external power supply variable speed induction motor and a control method thereof are disclosed. An induction motor includes: a stator in which coils directly connected to a single-phase or 3-phase or more systematic power supply are wound; a rotor that is supported to be rotatable in the stator; a power conversion device that is attached to the rotor and controls a rotor current without connection of a separate external power supply; and a control circuit that is connected to the power conversion device and controls the power conversion device.

    摘要翻译: 公开了一种外部电源变速感应电动机及其控制方法。 感应电动机包括:缠绕直接连接到单相或三相或更系统的电源的线圈的定子; 支承在所述定子中可旋转的转子; 功率转换装置,其连接到转子并控制转子电流,而不连接单独的外部电源; 以及连接到电力转换装置并控制电力转换装置的控制电路。

    Method to predict phase current
    2.
    发明授权
    Method to predict phase current 有权
    预测相电流的方法

    公开(公告)号:US08362759B2

    公开(公告)日:2013-01-29

    申请号:US12588095

    申请日:2009-10-02

    IPC分类号: G01R13/14

    CPC分类号: H02M7/53875 H02M2001/0009

    摘要: A phase current prediction method is disclosed. The phase current prediction method predicts current representative of a PWM period using a motor model which receives current measured through a single current sensor as an input, instead of the measured current, and determines the predicted current to be phase current.

    摘要翻译: 公开了一种相电流预测方法。 相电流预测方法使用接收通过单个电流传感器测量的电流作为输入而不是测量的电流来估计表示PWM周期的电流,并且将预测电流确定为相电流。

    Method and device to generate position profile in motion controller
    3.
    发明授权
    Method and device to generate position profile in motion controller 有权
    在运动控制器中生成位置分布的方法和装置

    公开(公告)号:US08024061B2

    公开(公告)日:2011-09-20

    申请号:US11132347

    申请日:2005-05-19

    申请人: Jung Ik Ha

    发明人: Jung Ik Ha

    IPC分类号: G06F19/00

    摘要: A method of and apparatus to generate a position profile using lower-order polynomials. The device includes a pattern coefficient generator to generate pattern and time coefficients of a position pattern that is classified by velocity change, a contour generator to generate a pattern polynomial to define a contour of each section of the position pattern using the generated pattern and time coefficients, and a dual filter for generating a position profile by selectively activating one of a plurality of filters, which receive the pattern polynomial generated by the contour generator. The device uses lower-order polynomials and a small number of coefficients, thereby reducing the number of calculations required in the procedure to generate the position profile. The device generates a seamless and smooth position profile by preventing switching errors due to the difference between filter sizes.

    摘要翻译: 使用低阶多项式来生成位置分布的方法和装置。 该装置包括:图形系数发生器,用于产生通过速度变化分类的位置图案的图形和时间系数;轮廓生成器,用于生成模式多项式,以使用生成的图案和时间系数来定义位置图案的每个部分的轮廓; 以及双重滤波器,用于通过选择性地激活接收由轮廓生成器生成的图案多项式的多个滤波器中的一个来产生位置分布。 该设备使用低阶多项式和少量系数,从而减少了生成位置分布的过程中所需的计算次数。 通过防止由于过滤器尺寸之间的差异导致的切换错误,设备可以生成无缝和平滑的位置配置文件。