CONTROLLING AN AC MACHINE
    1.
    发明申请
    CONTROLLING AN AC MACHINE 审中-公开
    控制交流电机

    公开(公告)号:US20150381081A1

    公开(公告)日:2015-12-31

    申请号:US14747437

    申请日:2015-06-23

    CPC classification number: H02P23/14 H02P6/34 H02P21/0089 H02P21/141 H02P21/18

    Abstract: A method of controlling an AC machine that includes a stator and a rotor, wherein the method includes, whilst operating the AC machine according to an overmodulation technique: determining a reference speed for controlling the operation of the AC machine; filtering the reference speed such that if the reference speed exceeds a speed limit of the AC machine, the reference speed is reduced towards that speed limit; and controlling the operation of the AC machine based on the filtered reference speed. It has been found that controlling the AC machine in this way helps to inhibit “windup” of a controller used to implement the method, even if the overmodulation technique sets a non-constant maximum voltage.

    Abstract translation: 一种控制包括定子和转子的交流电机的方法,其中所述方法包括:根据过调制技术操作所述交流电机;确定用于控制所述交流电机的操作的参考速度; 过滤参考速度,使得如果参考速度超过交流电机的速度限制,则基准速度降低到该速度限制; 并且基于滤波的参考速度来控制AC机器的操作。 已经发现,即使过调制技术设置非恒定的最大电压,也以这种方式控制AC电机有助于抑制用于实现该方法的控制器的“卷起”。

    METHOD OF CONTROLLING AN AC MACHINE AND CONTROLLER FOR CONTROLLING AN AC MACHINE
    3.
    发明申请
    METHOD OF CONTROLLING AN AC MACHINE AND CONTROLLER FOR CONTROLLING AN AC MACHINE 审中-公开
    控制交流电机的方法和控制器用于控制交流电机

    公开(公告)号:US20140203754A1

    公开(公告)日:2014-07-24

    申请号:US14161403

    申请日:2014-01-22

    CPC classification number: H02P21/0089 H02P21/12 H02P23/009

    Abstract: A method of controlling an AC machine that includes a stator and a rotor. The method includes observing a stability parameter that is indicative of the stability of the AC machine and dependent on a current state of the AC machine; and controlling the AC machine based on the observed stability parameter so as to promote stable operation of the AC machine. The method may include controlling the AC machine to operate as a motor or as a generator. The AC machine may be a permanent magnet synchronous machine. A controller suitable for performing the method is also disclosed.

    Abstract translation: 一种控制包括定子和转子的交流电机的方法。 该方法包括观察指示交流电机的稳定性并取决于交流电机的当前状态的稳定性参数; 并根据观察到的稳定性参数控制交流电机,以促进交流电机的稳定运行。 该方法可以包括控制AC电机作为电动机或发电机运行。 交流电机可以是永磁同步电机。 还公开了适用于执行该方法的控制器。

Patent Agency Ranking