UPS整流滤波与电能质量

主要就目前大功率UPS所采用的几种整流、滤波方式对输入电流的影响，以及各种相应抑制谐波的方法而进行研究和比较，文中分析了五种不同的整流、滤波方式，还从理论上分析了各种整流、滤波方式对谐波的抑制效果，利用电能质量分析仪对以上五种类型大功率UPS测试其输入电能质量，得到真实、原始的数据。通过对这些数据分析、比较，总结出各种不同整流、滤波方式对输入电网电能质量的影响。

The Rectifying and Filtering of UPS and Its Power Quality

In this paper, the impacts of five different rectifying and filtering ways on input current, which are often used in the high-power UPS, are analyzed. The theoretical discussions are made to understand their suppression effects on harmonic waves. Furthermore, the power quality analyzer is used to compare power quality of these five methods. Based on the experimental data, the effects on the power quality of the five methods are summarized to help the design work.