INDIRECT ROTOR RESISTANCE ESTIMATION SYSTEM AND METHOD
    1.
    发明申请
    INDIRECT ROTOR RESISTANCE ESTIMATION SYSTEM AND METHOD 审中-公开
    间接转子电阻估计系统和方法

    公开(公告)号:WO2008115438A1

    公开(公告)日:2008-09-25

    申请号:PCT/US2008/003443

    申请日:2008-03-14

    发明人: ARNET, Beat, J.

    IPC分类号: H02P23/00

    摘要: Indirect rotor resistance estimation for an AC induction motor is achieved by successively stepping the quadrature command to zero and the direct current command to a predetermined value causing the quadrature stator voltage to decay as a representation of rotor current decay; defining, in response to the decaying stator voltage reaching two spaced thresholds, a voltage/time difference, and retrieving from a storage device the rotor resistance associated with the voltage/time difference.

    摘要翻译: 交流感应电动机的间接转子电阻估计是通过将正交指令连续地转到零来实现的,并且直流指令达到预定值,导致正交定子电压衰减为转子电流衰减的表示; 响应于衰减的定子电压达到两个间隔的阈值,定义电压/时间差,并且从存储装置检索与电压/时间差相关联的转子电阻。

    IMPROVED DISTRIBUTION OF SPACE-VECTOR PWM CONDUCTION LOSSES
    2.
    发明申请
    IMPROVED DISTRIBUTION OF SPACE-VECTOR PWM CONDUCTION LOSSES 审中-公开
    改进的空间矢量PWM导通损耗的分布

    公开(公告)号:WO0231952A9

    公开(公告)日:2003-05-22

    申请号:PCT/US0132181

    申请日:2001-10-15

    摘要: A voltage source inverter generating a poly phase AC signal is provided that includes an SVPWM controller. The controller is adapted to modify the switching pattern at low sine-wave frequencies creating a more even distribution of the conduction losses. The switching pattern periodically changes the sequence (or rotational sense) of the space vector components from clock-wise to counter-clock-wise direction, and vice-versa.

    摘要翻译: 提供了一种产生多相AC信号的电压源逆变器,其包括SVPWM控制器。 该控制器适于在低正弦波频率下修改开关模式,从而产生更均匀的导通损耗分布。 切换模式周期性地将空间矢量分量的顺序(或旋转方向)从时钟方向改变到逆时针方向,反之亦然。

    IMPROVED DISTRIBUTION OF SPACE-VECTOR PWM CONDUCTION LOSSES
    3.
    发明申请
    IMPROVED DISTRIBUTION OF SPACE-VECTOR PWM CONDUCTION LOSSES 审中-公开
    改进的空间矢量PWM导通损耗的分布

    公开(公告)号:WO2002031952A1

    公开(公告)日:2002-04-18

    申请号:PCT/US2001/032181

    申请日:2001-10-15

    IPC分类号: H02M3/24

    摘要: A voltage source inverter generating a poly phase AC signal is provided that includes an SVPWM controller. The controller is adapted to modify the switching pattern at low sine-wave frequencies creating a more even distribution of the conduction losses. The switching pattern periodically changes the sequence (or rotational sense) of the space vector components from clock-wise to counter-clock-wise direction, and vice-versa.

    摘要翻译: 提供了一种产生多相AC信号的电压源逆变器,其包括SVPWM控制器。 该控制器适于在低正弦波频率下修改开关模式,从而产生更均匀的导通损耗分布。 切换模式周期性地将空间矢量分量的顺序(或旋转方向)从时钟方向改变到逆时针方向,反之亦然。

    METHOD AND SYSTEM FOR MULTIPHASE CURRENT SENSING
    4.
    发明申请
    METHOD AND SYSTEM FOR MULTIPHASE CURRENT SENSING 审中-公开
    用于多相电流感测的方法和系统

    公开(公告)号:WO2009097079A1

    公开(公告)日:2009-08-06

    申请号:PCT/US2009/000174

    申请日:2009-01-12

    发明人: ARNET, Beat, J.

    IPC分类号: H02P7/00

    摘要: A multiphase current sensing method wherein the sum of the phase currents is zero including: sensing a.c. and/or d.c. currents in first and second phases; sensing a.c. current in a predetermined a.c. frequency range in a third phase; and combining the current sensed in the first and third phases and the second and third phases and determining a gain correction factor to be applied to the currents sensed in the first and second phases.

    摘要翻译: 一种多相电流检测方法,其中相电流之和为零,包括:感测a.c. 和/或d.c. 第一和第二阶段的电流; 传感器 电流在预定的a.c. 频率范围在第三阶段; 以及组合在第一和第三相以及第二和第三相中感测的电流,并确定要施加到在第一和第二相中感测的电流的增益校正因子。