Method and apparatus for increasing a current sensing range in a polyphase motor system
    2.
    发明授权
    Method and apparatus for increasing a current sensing range in a polyphase motor system 有权
    用于增加多相电动机系统中的电流感测范围的方法和装置

    公开(公告)号:US09071187B2

    公开(公告)日:2015-06-30

    申请号:US14073377

    申请日:2013-11-06

    CPC classification number: H02P23/14

    Abstract: A method of increasing a current sensing range for a vehicle or other polyphase motor system includes measuring phase currents delivered to a motor of the system. A controller calculates an absolute value of each phase current, compares each calculated absolute value to a saturation limit to determine whether only one sensor is saturated, and extrapolates a phase current value of the saturated sensor. The calculated temporary phase current is used as the extrapolated phase current value for the saturated sensor, and a control action is executed using the extrapolated phase current value only when the calculated temporary phase current value exceeds the measured value for the saturated sensor and a sign of the calculated temporary phase current value matches that of the measured value for the saturated sensor. A system includes the motor, a power inverter module, phase current sensors, and a controller which executes the method.

    Abstract translation: 增加车辆或其他多相电动机系统的电流感测范围的方法包括测量传递到系统的电动机的相电流。 控制器计算每相电流的绝对值,将每个计算的绝对值与饱和极限进行比较,以确定是否只有一个传感器饱和,并推断饱和传感器的相电流值。 所计算的临时相电流用作饱和传感器的外推相电流值,仅在计算出的临时相电流值超过饱和传感器的测量值时,才使用外插相电流值执行控制动作, 计算的临时相电流值与饱和传感器的测量值的匹配。 系统包括电动机,电力逆变器模块,相电流传感器和执行该方法的控制器。

    Method and apparatus for monitoring and controlling a synchronous electric machine
    3.
    发明授权
    Method and apparatus for monitoring and controlling a synchronous electric machine 有权
    用于监控和控制同步电机的方法和装置

    公开(公告)号:US09048766B2

    公开(公告)日:2015-06-02

    申请号:US13937309

    申请日:2013-07-09

    CPC classification number: H02P6/08 H02P29/032 H02P29/66 H02P29/664 H02P2207/05

    Abstract: Controlling a synchronous electric machine includes determining a rotor field current of a wound rotor of the synchronous electric machine and determining a time-rate change in field flux linkage. A rotor field voltage is determined based upon the time-rate change in the field flux linkage, and a rotor field resistance is determined based upon the rotor field voltage and the rotor field current. A rotor temperature is determined based upon the rotor field resistance. Operation of the synchronous electric machine is controlled responsive to a torque command and the rotor temperature.

    Abstract translation: 控制同步电机包括确定同步电机的绕线转子的转子磁场电流并确定励磁磁链的时间变化。 基于励磁磁链的时间变化来确定转子磁场电压,并且基于转子磁场电压和转子磁场电流来确定转子磁场电阻。 基于转子磁场电阻确定转子温度。 响应于转矩指令和转子温度控制同步电机的操作。

    METHOD AND APPARATUS FOR INCREASING A CURRENT SENSING RANGE IN A POLYPHASE MOTOR SYSTEM
    4.
    发明申请
    METHOD AND APPARATUS FOR INCREASING A CURRENT SENSING RANGE IN A POLYPHASE MOTOR SYSTEM 有权
    在多相电机系统中增加电流传感范围的方法和装置

    公开(公告)号:US20150123578A1

    公开(公告)日:2015-05-07

    申请号:US14073377

    申请日:2013-11-06

    CPC classification number: H02P23/14

    Abstract: A method of increasing a current sensing range for a vehicle or other polyphase motor system includes measuring phase currents delivered to a motor of the system. A controller calculates an absolute value of each phase current, compares each calculated absolute value to a saturation limit to determine whether only one sensor is saturated, and extrapolates a phase current value of the saturated sensor. The calculated temporary phase current is used as the extrapolated phase current value for the saturated sensor, and a control action is executed using the extrapolated phase current value only when the calculated temporary phase current value exceeds the measured value for the saturated sensor and a sign of the calculated temporary phase current value matches that of the measured value for the saturated sensor. A system includes the motor, a power inverter module, phase current sensors, and a controller which executes the method.

    Abstract translation: 增加车辆或其他多相电动机系统的电流感测范围的方法包括测量传递到系统的电动机的相电流。 控制器计算每相电流的绝对值,将每个计算的绝对值与饱和极限进行比较,以确定是否只有一个传感器饱和,并推断饱和传感器的相电流值。 所计算的临时相电流用作饱和传感器的外推相电流值,仅在计算出的临时相电流值超过饱和传感器的测量值时,才使用外插相电流值执行控制动作, 计算的临时相电流值与饱和传感器的测量值的匹配。 系统包括电动机,电力逆变器模块,相电流传感器和执行该方法的控制器。

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