Method and system for operating an electric motor
    12.
    发明授权
    Method and system for operating an electric motor 有权
    操作电动机的方法和系统

    公开(公告)号:US08359131B2

    公开(公告)日:2013-01-22

    申请号:US12732003

    申请日:2010-03-25

    IPC分类号: B60L9/00

    摘要: Methods and systems for operating an electric motor having a plurality of windings with an inverter having a plurality of switches coupled to a voltage source are provided. A first plurality of switching vectors is applied to the plurality of switches. The first plurality of switching vectors includes a first ratio of first magnitude switching vectors to second magnitude switching vectors. A direct current (DC) current associated with the voltage source is monitored during the applying of the first plurality of switching vectors to the plurality of switches. A second ratio of the first magnitude switching vectors to the second magnitude switching vectors is selected based on the monitoring of the DC current associated with the voltage source. A second plurality of switching vectors is applied to the plurality of switches. The second plurality of switching vectors includes the second ratio of the first magnitude switching vectors to the second magnitude switching vectors.

    摘要翻译: 提供了用于操作具有多个绕组的电动机的方法和系统,其中逆变器具有耦合到电压源的多个开关。 第一多个切换矢量被施加到多个开关。 第一多个切换矢量包括第一幅度切换矢量与第二幅度切换矢量的第一比率。 在将第一多个切换向量应用于多个开关期间,监视与电压源相关联的直流(DC)电流。 基于与电压源相关联的直流电流的监视来选择第一幅度切换矢量与第二幅度切换矢量的第二比率。 第二多个切换向量被应用于多个开关。 第二多个切换矢量包括第一幅度切换矢量与第二幅度切换矢量的第二比率。

    Methods, systems and apparatus for overmodulation of a five-phase machine
    15.
    发明授权
    Methods, systems and apparatus for overmodulation of a five-phase machine 有权
    用于五相机过调制的方法,系统和装置

    公开(公告)号:US08339094B2

    公开(公告)日:2012-12-25

    申请号:US12722166

    申请日:2010-03-11

    IPC分类号: H02P23/00

    摘要: Methods, system and apparatus are provided for overmodulation of a five-phase machine in a vector controlled motor drive system that includes a five-phase PWM controlled inverter module that drives the five-phase machine. Techniques for overmodulating a reference voltage vector are provided to optimize voltage command signals that control a five-phase inverter module to increase output voltages generated by the five-phase inverter module.

    摘要翻译: 提供了一种矢量控制电动机驱动系统中五相机过调制的方法,系统和装置,其包括驱动五相机的五相PWM控制逆变器模块。 提供过调制参考电压矢量的技术来优化控制五相逆变器模块以增加由五相逆变器模块产生的输出电压的电压指令信号。

    Power inverter module thermal management
    16.
    发明授权
    Power inverter module thermal management 有权
    电源逆变器模块热管理

    公开(公告)号:US07755313B2

    公开(公告)日:2010-07-13

    申请号:US11853862

    申请日:2007-09-12

    IPC分类号: H02P7/00

    摘要: According to an example embodiment, a method is provided for limiting an operational temperature of a motor. The method includes generating a maximum allowable current I*S(max) for a motor based on a temperature difference between a temperature reference T* of a power inverter module and a semiconductor device temperature T of the power inverter module. The method further includes generating a maximum allowable torque T*e(max) based on the maximum allowable current I*S(max) and a maximum allowable flux Ψ*S(max), and using the maximum allowable torque T*e(max) to limit the torque command T*e in order to suppress the semiconductor device temperature T to below the temperature reference T*.

    摘要翻译: 根据示例性实施例,提供了一种用于限制电动机的工作温度的方法。 该方法包括基于电力逆变器模块的温度参考值T *和功率逆变器模块的半导体器件温度T之间的温差产生电动机的最大允许电流I * S(max)。 该方法还包括基于最大允许电流I * S(max)和最大允许磁通Ψ* S(max)产生最大允许转矩T * e(max),并使用最大允许转矩T * e )以限制转矩指令T * e,以便将半导体器件温度T抑制到低于温度参考值T *。

    Methods, systems and apparatus for controlling operation of two alternating current (AC) machines
    18.
    发明授权
    Methods, systems and apparatus for controlling operation of two alternating current (AC) machines 有权
    用于控制两台交流(AC)机器的操作的方法,系统和装置

    公开(公告)号:US08115430B2

    公开(公告)日:2012-02-14

    申请号:US12473964

    申请日:2009-05-28

    IPC分类号: H02P21/00 H02P27/00

    摘要: A system is provided for controlling two AC machines. The system comprises a DC input voltage source that provides a DC input voltage, a voltage boost command control module (VBCCM), a five-phase PWM inverter module coupled to the two AC machines, and a boost converter coupled to the inverter module and the DC input voltage source. The boost converter is designed to supply a new DC input voltage to the inverter module having a value that is greater than or equal to a value of the DC input voltage. The VBCCM generates a boost command signal (BCS) based on modulation indexes from the two AC machines. The BCS controls the boost converter such that the boost converter generates the new DC input voltage in response to the BCS. When the two AC machines require additional voltage that exceeds the DC input voltage required to meet a combined target mechanical power required by the two AC machines, the BCS controls the boost converter to drive the new DC input voltage generated by the boost converter to a value greater than the DC input voltage.

    摘要翻译: 提供一种用于控制两台交流电机的系统。 该系统包括提供DC输入电压的DC输入电压源,升压指令控制模块(VBCCM),耦合到两个AC电机的五相PWM逆变器模块,以及耦合到逆变器模块和 直流输入电压源。 升压转换器被设计为向逆变器模块提供具有大于或等于直流输入电压值的新的直流输入电压。 VBCCM基于来自两台交流电机的调制指数生成升压指令信号(BCS)。 BCS控制升压转换器,使升压转换器响应于BCS产生新的直流输入电压。 当两台交流电机需要超过满足两台交流电机所需的组合目标机械功率所需的直流输入电压的额外电压时,BCS控制升压转换器将升压转换器产生的新的直流输入电压驱动到一个值 大于直流输入电压。