矢量控制电流环的内模解耦控制

电机矢量控制虽然实现了励磁电流和转矩电流解耦,但交流电机内部M轴和T轴之间存在交叉耦合电压及转子温升造成矢量控制条件的破坏.提出采用定子电流解耦的内模控制,推导出其设计过程和控制器型式,通过数字仿真论述了感应电动机定子电流控制系统采用解耦内模控制,可有效抑制干扰及模型失配对输出的影响,增强系统对给定信号的跟踪能力.

The Internal Model Decouple Control in Current Loop of Vector Control

Although excitation current and torque current are decouple in vector control, but there are cross coupled voltage between M axis and T axis and rotor temperature rising, this leaded to the condition destroyed of vector control. Internal model with Stator current decoupled was put forward, derived its design process and model of its controller. The digital simulation shows that decoupled internal model in motor stator control system can inhibit the effect of disturbance and model difference, enhances the system ability to track the given signal.