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    • 9. 发明授权
    • Method and apparatus for controlling an electric machine in a six-step mode
    • 用于以六步模式控制电机的方法和装置
    • US09407178B2
    • 2016-08-02
    • US14541177
    • 2014-11-14
    • GM GLOBAL TECHNOLOGY OPERATIONS LLC
    • Jung Sik YimJihoon JangBon Ho BaeMilan A. Vadera
    • H02P6/08H02P6/00
    • H02P27/08H02P21/0089
    • A voltage source inverter controller for controlling an inverter electrically connected to an electric machine includes a current command generator, a six-step flux controller and a current regulator. The six-step flux controller generates a flux modifier to regulate flux in a flux-weakening speed/load operating region of the electric machine when operating the electric machine in a six-step mode. The current command generator converts a desired torque to three-phase desired currents that are input to a dq0-dq transformer and combined with the flux modifier to determine a modified-flux direct-quadrature (dq) current request. The current regulator includes a proportional-integral feedback controller, anti-windup elements, a dq voltage limit element and a voltage magnitude limiter. The proportional-integral feedback controller and the anti-windup elements perform closed-loop current control on the modified-flux dq current request to determine commanded dq voltages.
    • 用于控制与电机电连接的逆变器的电压源逆变器控制器包括电流指令发生器,六级通量控制器和电流调节器。 六步磁通控制器在六步模式下操作电机时产生磁通量调节器,以调节电机的磁通弱化速度/负载运行区域内的通量。 电流指令发生器将期望的转矩转换为输入到dq0-dq变压器的三相期望电流,并与磁通调节器组合以确定修正磁通直接正交(dq)电流请求。 电流调节器包括比例积分反馈控制器,防饱和元件,dq限压元件和电压幅度限制器。 比例积分反馈控制器和防饱和元件对修正磁通dq电流请求执行闭环电流控制,以确定指令的dq电压。