Meanwhile, in the main circuit structure, the use of LCL filter, improved high frequency switching harmonics suppression.
同时，在主电路结构中，采用LCL滤波，改善了对高频开关谐波的抑制。
To avoid the current resonance caused by LCL filter, damping resistance is usually needed, which increases wastage and reduces system efficiency.
为了避免LCL滤波器发生电流谐振，通常需要加入阻尼电阻，则导致损耗增加，降低系统效率。
To suppress resonance of LCL filter and improve stability of system, it is pre - sent that a voltage and current double loops control strategy based on virtual resistor concept.
为了提高系统的稳定性，抑制滤波器的谐振，在双闭环控制的基础上提出了一种基于虚拟电阻思想的控制策略。通过对滤波电容电流的积分处理，改变了系统传递函数的极点，确保了系统的稳定运行。
Using LCL-filter can resolve these problems. The topology and mathematical model of grid-side converter based LCL filter are established, the parameters of LCL-filter are designed.
本文建立了采用LCL滤波器的网侧变换器的拓扑结构和数学模型，设计了LCL滤波器的参数。
Using LCL-filter can resolve these problems. The topology and mathematical model of grid-side converter based LCL filter are established, the parameters of LCL-filter are designed.
本文建立了采用LCL滤波器的网侧变换器的拓扑结构和数学模型，设计了LCL滤波器的参数。
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