中文摘要：

LCL型滤波器就谐波滤除相较于L型以及LC型滤波器具有很大的优势，在此首先通过对滤波总电感值L1＋L2与滤波电容C2两者之间的关系进行研究，然后提出一种在滤波电容以及总电感值较低且不变的情况下，通过改变滤波电感L1，L2的值设计出满足并网要求且谐波抑制最为显著的滤波器。最后通过10 kVA样机实验验证该设计取得了良好的效果。

英文摘要：

Compared with L-type harmonic filter and LC-type filter,LCL filter has a greater advantage in harmonic suppres-sion. The relationship between the filtering total inductance L1＋L2 and filtering capacitor C2 is researched,and then a design scheme of the filter which has most significant harmonic suppression and can meet grid-connection requirements by changing the filter inductance value under the cases that the total inductance value and filtering capacitor are low and unchanged is proposed. The experiments with 10 kVA prototype show that this design has obtained a good effect.