Motor control system for achieving peak torque
    4.
    发明授权
    Motor control system for achieving peak torque 有权
    电机控制系统实现峰值扭矩

    公开(公告)号:US08134321B2

    公开(公告)日:2012-03-13

    申请号:US12419371

    申请日:2009-04-07

    IPC分类号: H02P7/00

    CPC分类号: H02P21/22

    摘要: In a motor controller, a modified interpolation technique uses an extrapolated torque command for the upper table to improve torque linearity under certain conditions. When the torque command input is greater than the max torque limit of a first look-up table, but less than the maximum torque limit of a second, adjacent look-up table, the desired current command is computed by interpolating between the maximum torque limit of the first table and a revised torque value for the second look-up table, wherein the revised torque value is determined by extrapolating from the maximum torque limit of the first look-up table through a torque value based on the torque command input.

    摘要翻译: 在电动机控制器中,改进的插补技术使用上表的外推转矩指令来在某些条件下提高扭矩线性度。 当转矩指令输入大于第一查找表的最大转矩限制但小于第二相邻查找表的最大转矩极限时,通过内插最大转矩极限来计算所需电流指令 以及第二查找表的修正扭矩值,其中,通过基于转矩指令输入的转矩值,通过从第一查找表的最大转矩极限推断来确定修正后的转矩值。

    SYSTEM AND METHOD FOR CONTROLLING ELECTRIC DRIVE SYSTEMS
    5.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING ELECTRIC DRIVE SYSTEMS 有权
    用于控制电力驱动系统的系统和方法

    公开(公告)号:US20080197796A1

    公开(公告)日:2008-08-21

    申请号:US11676539

    申请日:2007-02-20

    IPC分类号: H02P7/00

    摘要: Methods, apparatus, and systems are provided for regulating the operation of a drive system within a battery voltage and power range. The apparatus includes a PI regulator producing a signal for regulating a torque output of the drive system based on a DC voltage source limit and/or power limit, a converter normalizing the signal from the PI regulator to produce a new torque limit, and a switch selecting either the new torque limit or an available torque limit of the drive system. The PI regulator includes an integrator having an initial value based on the torque output of the drive system and a copper loss term.

    摘要翻译: 提供了用于调节电池电压和功率范围内的驱动系统的操作的方法,装置和系统。 该装置包括PI调节器,其产生用于基于直流电压源极限和/或功率限制来调节驱动系统的转矩输出的信号,转换器对来自PI调节器的信号进行归一化以产生新的转矩极限,以及开关 选择新的转矩限制或驱动系统的可用转矩极限。 PI调节器包括具有基于驱动系统的转矩输出的初始值和铜损失项的积分器。

    System and method for controlling electric drive systems
    6.
    发明授权
    System and method for controlling electric drive systems 有权
    用于控制电力驱动系统的系统和方法

    公开(公告)号:US07459874B2

    公开(公告)日:2008-12-02

    申请号:US11676539

    申请日:2007-02-20

    IPC分类号: G05B5/01

    摘要: Methods, apparatus, and systems are provided for regulating the operation of a drive system within a battery voltage and power range. The apparatus includes a PI regulator producing a signal for regulating a torque output of the drive system based on a DC voltage source limit and/or power limit, a converter normalizing the signal from the PI regulator to produce a new torque limit, and a switch selecting either the new torque limit or an available torque limit of the drive system. The PI regulator includes an integrator having an initial value based on the torque output of the drive system and a copper loss term.

    摘要翻译: 提供了用于调节电池电压和功率范围内的驱动系统的操作的方法,装置和系统。 该装置包括PI调节器,其产生用于基于直流电压源极限和/或功率限制来调节驱动系统的转矩输出的信号,转换器对来自PI调节器的信号进行归一化以产生新的转矩极限,以及开关 选择新的转矩限制或驱动系统的可用转矩极限。 PI调节器包括具有基于驱动系统的转矩输出的初始值和铜损失项的积分器。

    Methods, systems and apparatus for reducing power loss in an electric motor drive system
    8.
    发明授权
    Methods, systems and apparatus for reducing power loss in an electric motor drive system 有权
    用于减少电动机驱动系统中的功率损耗的方法,系统和装置

    公开(公告)号:US08754603B2

    公开(公告)日:2014-06-17

    申请号:US13183318

    申请日:2011-07-14

    IPC分类号: H02P7/00

    摘要: Methods, system and apparatus are provided for reducing power loss in an electric motor drive system that includes an electric machine and an inverter module. A controller determines whether a torque command (Tcmd) is less than a minimum torque threshold (Tmin) that is required to disable the inverter module, and if so, increments a counter and determines whether the torque command (Tcmd) remains less than the minimum torque threshold (Tmin). When the torque command (Tcmd) remains less than the minimum torque threshold (Tmin), the controller checks to determine whether a current count value (n) maintained at the counter is greater than a count threshold (nth), and if so, the controller can generate a disable signal to disable switching within the inverter module.

    摘要翻译: 提供了用于减少包括电机和逆变器模块的电动机驱动系统中的功率损耗的方法,系统和装置。 控制器确定转矩指令(Tcmd)是否小于禁用变频器模块所需的最小转矩阈值(Tmin),如果是,则增加一个计数器,并确定转矩指令(Tcmd)是否保持小于最小值 转矩阈值(Tmin)。 当扭矩指令(Tcmd)保持小于最小扭矩阈值(Tmin)时,控制器检查以确定计数器上保持的当前计数值(n)是否大于计数阈值(nth),如果是,则 控制器可以产生一个禁用信号,以禁用逆变器模块内的开关。

    Field weakening motor control system and method
    9.
    发明授权
    Field weakening motor control system and method 失效
    弱磁电机控制系统及方法

    公开(公告)号:US07023168B1

    公开(公告)日:2006-04-04

    申请号:US10939553

    申请日:2004-09-13

    IPC分类号: H02P3/18 H02P5/04 H02P5/28

    CPC分类号: H02P21/10 H02P21/0089

    摘要: A control system for an electric machine includes a flux weakening module, which includes a voltage magnitude calculator that receives d-axis and q-axis command voltages and that generates a voltage magnitude. An error circuit compares the voltage magnitude to a reference voltage and generates an error signal. A controller receives the error signal and generates a feedback flux correction signal. A limiter limits the feedback flux correction signal to a predetermined flux value and generates a limited feedback flux correction signal. A feedforward stator flux generating circuit generates a feedforward stator flux signal. A summing circuit sums the feedforward stator flux signal and the limited feedback flux correction signal to generate a final stator flux command.

    摘要翻译: 一种用于电机的控制系统包括磁通削弱模块,其包括接收d轴和q轴指令电压并产生电压幅度的电压幅度计算器。 误差电路将电压幅度与参考电压进行比较,并产生误差信号。 控制器接收误差信号并产生反馈磁通校正信号。 限制器将反馈磁通校正信号限制在预定磁通值,并产生有限的反馈磁通校正信号。 前馈定子通量产生电路产生前馈定子磁通信号。 求和电路将前馈定子磁通信号和有限反馈磁通校正信号相加,以产生最终的定子通量指令。

    Position sensorless control algorithm for AC machine
    10.
    发明授权
    Position sensorless control algorithm for AC machine 有权
    交流电机无位置传感器控制算法

    公开(公告)号:US06894454B2

    公开(公告)日:2005-05-17

    申请号:US10268503

    申请日:2002-10-10

    CPC分类号: H02P21/00 H02P21/26 H02P21/32

    摘要: A control system for an electric motor including an inverter for providing power to the electric motor, a controller for controlling the inverter, a first motor speed control block in the controller injecting a high frequency signal into the electric motor to determine the speed and position of the electric motor, a second motor speed control block in the controller detecting the back electromotive force to determine the speed and position of the electric motor, and a transition control block in said controller to vary operation between the first motor speed control block and the second motor speed control block.

    摘要翻译: 一种用于电动机的控制系统,包括用于向电动机提供电力的逆变器,用于控制逆变器的控制器,控制器中的第一电动机速度控制块,将高频信号注入电动机以确定速度和位置 所述电动机,所述控制器中的第二电动机速度控制块检测所述反电动势以确定所述电动机的速度和位置;以及所述控制器中的转换控制块,以改变所述第一电动机速度控制块和所述第二电动机速度控制块之间的操作 电机速度控制块。