求翻译：由图8可见，系统输出电流谐波总畸变率(Total Harmonic Distortion，THD)基本能够满足小于5%的分布式电源并网要求。但是由于LC滤波参数是在满负荷条件下计算得到，因此在低负荷时的滤波效果较差。而且PI控制在高负荷时产生的直流电压波动会显著影响到输出的谐波含量。是什么意思？

Figure 8 shows the system output current total harmonic distortion ratio (Total Harmonic Distortion, THD) less than 5% can basically meet the requirements of distributed power grid. However, due to LC filter parameters are calculated under full load conditions, so the low-load filtering less effecti

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As seen in Figure 8, the system output current overtone total distortion factor (Total Harmonic Distortion, THD) basic can be smaller than satisfiedly 5% distributional power source incorporation request.But because the LC filter parameter is the computation obtains under the full load condition, th

Figure 8 shows that total system output current harmonic distortion rate (Total Harmonic Distortion,THD) distributed grid-connected power requirement basic to meet less than 5%. But because LC filter parameters are under full load condition calculated, so the filter effect at low load time is worse.

Figure 8 shows that total system output current harmonic distortion rate (Total Harmonic Distortion,THD) distributed grid-connected power requirement basic to meet less than 5%. But because LC filter parameters are under full load condition calculated, so the filter effect at low load time is worse.