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基于自适应比例谐振的新型并网电流控制策略

, PP. 186-195

Keywords: 比例谐振,自适应,频率漂移,并网逆变器

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Abstract:

针对单相并网逆变器中电流环比例积分(PI)控制不能无差跟踪正弦参考信号及市电频率漂移时谐振控制器控制效果不佳等问题,提出了一种新颖的自适应比例谐振控制器,基于一特定的滤波器由闭环控制动态调整谐振控制器的谐振频率点,使得市电频率漂移时并网电流依然能够实现零稳态误差。数学分析、仿真和实验进一步验证了所设计的控制器的正确性和可行性。

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