Electric motor with active hysteresis-based control of winding currents and/or having an efficient stator winding arrangement and/or adjustable air gap
    2.
    发明授权
    Electric motor with active hysteresis-based control of winding currents and/or having an efficient stator winding arrangement and/or adjustable air gap 失效
    具有主动滞后的绕组电流控制和/或具有有效的定子绕组布置和/或可调节气隙的电动马达

    公开(公告)号:US06348751B1

    公开(公告)日:2002-02-19

    申请号:US08990134

    申请日:1997-12-12

    IPC分类号: H02K312

    摘要: An electric motor is provided with active hysteresis-based control of winding current. The motor has an efficient stator winding arrangement, as well as at least one adjustable air gap. Also provided is a stator, windings and air gap adjustment mechanism, as well as a method and system for controlling the torque produced by the motor using active hysteresis-based control of the motor's winding currents. The stator has its windings distributed among arc sections, the windings in each arc section being associated with only one phase of the motor. The hysteresis-based control of winding current is active in that a bandwidth or spread of the hysteresis band is adjusted depending on at least one of several selectively determined factors. The motor and its associated components are particularly well-suited for use in an electrically powered vehicle, as well as in hybrid vehicles using both electric power from a battery and electric power derived from a fuel-burning engine. A current detector is provided for generating outputs indicative of current flowing through each of three phase windings in a motor, based on detected magnitudes of current flowing through only two of the phase windings. Also provided is a discharge device for discharging residual voltage on a power bus of an electric vehicle.

    摘要翻译: 电动机提供有效的基于磁滞的绕组电流控制。 电动机具有有效的定子绕组布置,以及至少一个可调节的气隙。 还提供了一种定子,绕组和气隙调节机构,以及用于通过使用基于电动机的绕组电流的主动滞后控制来控制由电动机产生的转矩的方法和系统。 定子的绕组分布在电弧部分之间,每个电弧部分中的绕组只与电动机的一个相位相关联。 绕组电流的基于滞后的控制是有效的,因为根据几个选择性确定的因素中的至少一个来调节滞后带的带宽或扩展。 电动机及其相关部件特别适用于电动车辆,以及使用来自电池的电力和来自燃料燃烧发动机的电力的混合动力车辆。 提供电流检测器,用于基于检测到的仅流过两个相绕组中的两个电流的大小来产生指示流过电动机中三相绕组中的每一个的电流的输出。 还提供了用于对电动车辆的动力总线上的残余电压进行放电的放电装置。