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    • 48. 发明授权
    • Sensorless control induction motor rotor slot shapes and fabrication methods
    • 无传感器控制感应电动机转子槽形状及制作方法
    • US06515395B1
    • 2003-02-04
    • US09433760
    • 1999-11-04
    • Patrick Lee Jansen
    • Patrick Lee Jansen
    • H02K1502
    • B22D19/0054B21D28/22H02K15/0012H02K15/024H02K17/165H02K17/30Y10T29/49009Y10T29/49012
    • A method for fabricating an induction motor rotor lamination includes using an indexed notching die to punch a plurality of closed rotor slots at -different distances from a center point of rotation by punching a first rotor slot, changing the position of a center point of the rotor lamination with respect to the notching die, and punching a second rotor slot. In another embodiment, a plurality of rotor slit patterns are punched using a variable depth indexed notching die including at least two rotor slit punching portions, one being deeper than another, by punching a first rotor slit pattern, changing the depth of closure of the notching die, and punching a second rotor slit pattern with the second rotor slit pattern having a different number of rotor slits than the first. In another embodiment, each rotor slit is open to and off center with respect to its respective rotor slot, and rotor laminations are stacked by positioning some of the rotor laminations in an orientation with is turned over and rotated with respect to others of the rotor laminations; filling the rotor slots and the rotor slits with cage material; and machining outer surfaces of the rotor laminations. In another embodiment, uniformly spaced identical rotor slots are punched and modulation is created by punching a contoured outside diameter or by inserting slot wedges of molded magnetic material.
    • 一种用于制造感应电动机转子叠片的方法,包括使用分度开槽模具,通过冲压第一转子槽,在与旋转中心点不同的距离上冲压多个闭合的转子槽,改变转子中心点的位置 相对于切口模具进行层压,并冲压第二转子槽。 在另一个实施例中,使用可变深度指数的切口模具冲切多个转子狭缝图案,所述切割凹口包括至少两个转子狭缝冲压部分,一个比另一个更深,通过冲压第一转子狭缝图案,改变开槽的闭合深度 模具,并且冲压第二转子狭缝图案,其中第二转子狭缝图案具有与第一转子狭缝图案不同数量的转子狭缝。 在另一个实施例中,每个转子狭缝相对于其相应的转子槽开放至中心,并且转子叠片通过将一些转子叠片定位成相对于转子叠片的其它部分翻转并旋转的方向而被堆叠 ; 用保持架材料填充转子槽和转子槽; 并加工转子叠片的外表面。 在另一个实施例中,打孔均匀间隔相同的转子槽,并通过冲压成形外径或通过插入模制磁性材料的槽楔形成调制。
    • 50. 发明授权
    • System for speed-sensorless control of an induction machine
    • 感应电机无速度传感器控制系统
    • US6137258A
    • 2000-10-24
    • US178760
    • 1998-10-26
    • Patrick Lee Jansen
    • Patrick Lee Jansen
    • H02P21/00H02P21/06H02P21/14H02P27/04H02P5/34
    • H02P21/141H02P21/18H02P21/26H02P6/185
    • A system for speed-sensorless control of an induction machine includes a flux regulator & torque current calculator for operating the machine in a heavily saturated state to produce a saturation induced saliency; a saliency tracker for tracking an angle of the saturation-induced saliency; a signal injector for injecting an AC signal aligned with a saliency axis; voltage and current determiners for determining stator voltages and currents; and a rotor flux calculator for using the saturation-induced saliency angle, the determined stator voltages, and the determined stator currents to determine a magnitude and a location of a rotor flux vector. The flux regulator & torque current calculator is adapted to use the rotor flux vector to control the induction machine.
    • 感应电机的无速度传感器控制系统包括一个磁通调节器和扭矩电流计算器,用于在严重饱和状态下操作机器以产生饱和诱发的显着性; 用于跟踪饱和诱导突出角度的显着跟踪器; 用于注入与显着轴对准的AC信号的信号注射器; 用于确定定子电压和电流的电压和电流确定器; 以及转子磁通计算器,用于使用饱和诱导凸极角,所确定的定子电压和确定的定子电流来确定转子磁通矢量的大小和位置。 磁通调节器和转矩电流计算器适用于使用转子磁通矢量来控制感应电机。