一种新型单相逆变器DQ控制策略的研究

Research on A novel Single-Phase inverter DQ Control Strategy

传统的单相全桥逆变器双环控制采用电压电流的瞬时值作为反馈值,因反馈量为交流电压和交流电流,输出电压存在滞后且控制参数难以调整至最优的缺点。本文通过虚构一个与主电路参数相同、输出滞后四分之一周期的电路,做为Q轴变量,通过坐标变换,将交流信号转变为直流信号,简化了控制器的设计。

Traditional single-phase full-bridge inverter with dual loop control using voltage and current instantaneous value feedback, feedback for AC voltage and AC current, the output voltage will be present disadvantages of lag and optimal control parameters are difficult to adjust to. Based fiction with the same main circuit parameters and circuit output lag one-fourth cycle, as the Q-axis variable by coordinate transformations, the AC signal into a DC signal, and simplifies the design of controllers.