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中文摘要：
对于采用有源阻尼控制策略的LCL并网逆变器而言，逆变器侧电流反馈的LCL并网逆变器能稳定工作，其控制参数设计相对简单，但是进网电流易产生较大的低频谐波。从控制的角度分析了产生低频谐波电流的原因，得出电流环的控制参数、LCL滤波器参数对低频谐波电流抑制的具体作用。在此基础上，得到逆变器侧电流反馈的LCL并网逆变器的滤波参数和控制参数的设计方法。实验结果表明，所提出的参数设计方法正确、有效。
英文摘要：
For grid-connected inverter with LCL filter which uses active damping control strategy, the grid-connected inverter with current feedback LCL filter is able to operate stably. Its inverter-side parameter is relatively stronger and its control parameter design is relatively more simple. However, the grid current contains a lot of low-order harmonic current. The reason for producing low-order harmonic current is analyzed from the aspect of control so as to obtain the effect of suppression on low- order harmonic current from LCL filter parameters and control parameters of current loop. The design method for LCL filter and control parameters is derived based on results of above analyses. The experimental results verify that the proposed method for parameter design is accurate and valid.
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