【摘要】 分析了影响并网逆变器输出电流波形质量的主要因素,建立了含变压器的三相并网逆变器输出电流的数学模型。在此基础上提出同步旋转坐标系下谐波扰动重复控制与基波电流PI(比例积分)控制相结合的三相并网逆变器系统控制方案。实验证明该方案能够有效抑制逆变器输出电流的谐波扰动、改善电流波形质量。更多还原

【Abstract】 Some factors affect the inverter’s output current was analyzed.One control scheme was presented using the combination of a PI controller and repetitive controller tracking fundamental component and restraining harmonic distur- bance.The experiment results showed that the scheme works well,and highly accurate steady output and less harmonic disturbance was obtained.更多还原