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两级式单相逆变输入端纹波电流双反馈抑制

, PP. 187-193

Keywords: 可再生能源,纹波电流,小信号模型,纹波传播方程,两级式单相逆变器

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Abstract:

在两级式单相逆变系统中,逆变器的输入端电流含有大量低频纹波。本文对两级式单相逆变系统中能量流动、纹波功率以及输入端纹波电流的产生机理进行了分析。基于Boost电路的小信号模型和纹波电流的等效电路模型,提出一种基于电流双反馈通道的输入端纹波电流抑制方法。此控制策略在基于DSP的先进数字控制平台上进行了实验,实验结果表明了该控制策略的有效性和合理性。

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