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光伏并网逆变器LCL陷波校正滤波器

, PP. 237-241

Keywords: 光伏逆变器,LCL滤波器,陷波校正,谐振

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Abstract:

为了抑制LCL滤波器的谐振,提高光伏并网逆变器的输出性能,介绍了一种基于陷波校正法的光伏并网逆变器输出滤波控制方案,将陷波校正法和超前/滞后环节引入LCL滤波器,给出了LCL滤波器的设计参数。系统仿真和实验结果表明,这种滤波方案有效抵消了LCL滤波器的正谐振峰,有效地滤除了逆变器输出电流的高次谐波,改善了电流波形的质量,提高了光伏并网逆变器的输出效率。

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