Control of an electrical machine
    1.
    发明授权
    Control of an electrical machine 有权
    电机控制

    公开(公告)号:US08836254B2

    公开(公告)日:2014-09-16

    申请号:US13252773

    申请日:2011-10-04

    摘要: A method of controlling an electrical machine that includes selecting an edge of a rotor-position signal as a reference edge and commutating a phase winding of the electrical machine at times relative to the reference edge. The rotor-position signal has at least four edges per mechanical cycle, each of the edges being associated with a respective zero-crossing in back EMF or minimum in inductance of the phase winding. The angular position of at least one of the edges relative to its respective zero-crossing or minimum is different to that of the other edges. The reference edge is then selected from the edges such that the angular position of the reference edge relative to its respective zero-crossing or minimum is the same with each power on of the electrical machine. Additionally, a controller and control system that implement the method.

    摘要翻译: 一种控制电机的方法,包括选择转子位置信号的边缘作为参考边缘,并且相对于参考边缘在时间上整流电机的相绕组。 转子位置信号每个机械循环具有至少四个边缘,每个边缘与反向电动势中的相应过零点或相绕组的电感中的最小值相关联。 边缘中的至少一个相对于其相应过零点或最小值的角位置不同于其它边缘的角位置。 然后从边缘中选择参考边缘,使得参考边缘相对于其相应的过零或最小值的角位置与电机的每个上电相同。 另外,实现该方法的控制器和控制系统。

    CONTROL OF AN ELECTRICAL MACHINE
    2.
    发明申请
    CONTROL OF AN ELECTRICAL MACHINE 有权
    电机控制

    公开(公告)号:US20120081046A1

    公开(公告)日:2012-04-05

    申请号:US13252773

    申请日:2011-10-04

    IPC分类号: H02P6/16

    摘要: A method of controlling an electrical machine that includes selecting an edge of a rotor-position signal as a reference edge and commutating a phase winding of the electrical machine at times relative to the reference edge. The rotor-position signal has at least four edges per mechanical cycle, each of the edges being associated with a respective zero-crossing in back EMF or minimum in inductance of the phase winding. The angular position of at least one of the edges relative to its respective zero-crossing or minimum is different to that of the other edges. The reference edge is then selected from the edges such that the angular position of the reference edge relative to its respective zero-crossing or minimum is the same with each power on of the electrical machine. Additionally, a controller and control system that implement the method.

    摘要翻译: 一种控制电机的方法,包括选择转子位置信号的边缘作为参考边缘,并且相对于参考边缘在时间上整流电机的相绕组。 转子位置信号每个机械循环具有至少四个边缘,每个边缘与反向电动势中的相应过零点或相绕组的电感中的最小值相关联。 边缘中的至少一个相对于其相应过零点或最小值的角位置不同于其它边缘的角位置。 然后从边缘中选择参考边缘,使得参考边缘相对于其相应的过零或最小值的角位置与电机的每个上电相同。 另外,实现该方法的控制器和控制系统。