Control system of three phase induction motor driver and field weakening control method thereof
    1.
    发明授权
    Control system of three phase induction motor driver and field weakening control method thereof 有权
    三相感应电机驱动控制系统及其弱磁控制方法

    公开(公告)号:US08395336B2

    公开(公告)日:2013-03-12

    申请号:US12846345

    申请日:2010-07-29

    IPC分类号: H02P21/00

    摘要: A control system of a three phase induction motor driver and a field weakening control method. The control system includes a driver control module, a field weakening control module, an AC power source, a power loop module, a current sensing module, and an AC motor module. A switching period of an inverter PWM control is used for the AC motor and an inverter control thereof to analyze and obtain the difference value of the sum of effective switching times. The field weakening control module generates an adaptive magnetizing current command in real time to achieve a maximum utilization of a DC link voltage so as to let the AC motor module achieve maximum output torque under different field weakening regions of different speeds when a rated speed is exceeded.

    摘要翻译: 三相感应电机驱动器的控制系统和弱磁控制方法。 控制系统包括驱动器控制模块,弱磁控制模块,交流电源,功率回路模块,电流感测模块和交流电动机模块。 逆变器PWM控制的开关周期用于交流电动机,其逆变器控制分析并获得有效切换时间之和的差值。 励磁弱化控制模块实时生成自适应励磁电流命令,以实现直流母线电压的最大利用,从而使交流电动机模块在超过额定转速时在不同速度的不同弱磁区域实现最大输出转矩 。

    CONTROL SYSTEM OF THREE PHASE INDUCTION MOTOR DRIVER AND FIELD WEAKENING CONTROL METHOD THEREOF
    2.
    发明申请
    CONTROL SYSTEM OF THREE PHASE INDUCTION MOTOR DRIVER AND FIELD WEAKENING CONTROL METHOD THEREOF 有权
    三相感应电机驱动器的控制系统及其弱磁控制方法

    公开(公告)号:US20120025749A1

    公开(公告)日:2012-02-02

    申请号:US12846345

    申请日:2010-07-29

    IPC分类号: H02P27/04

    摘要: A control system of a three phase induction motor driver and a field weakening control method. The control system includes a driver control module, a field weakening control module, an AC power source, a power loop module, a current sensing module, and an AC motor module. A switching period of an inverter PWM control is used for the AC motor and an inverter control thereof to analyze and obtain the difference value of the sum of effective switching times. The field weakening control module generates an adaptive magnetizing current command in real time to achieve a maximum utilization of a DC link voltage so as to let the AC motor module achieve maximum output torque under different field weakening regions of different speeds when a rated speed is exceeded.

    摘要翻译: 三相感应电机驱动器的控制系统和弱磁控制方法。 控制系统包括驱动器控制模块,弱磁控制模块,交流电源,功率回路模块,电流感测模块和交流电动机模块。 逆变器PWM控制的开关周期用于交流电动机,其逆变器控制分析并获得有效切换时间之和的差值。 励磁弱化控制模块实时生成自适应励磁电流命令,以实现直流母线电压的最大利用,从而使交流电动机模块在超过额定转速时在不同速度的不同弱磁区域实现最大输出转矩 。