电子降压型节电器的谐波问题及节电效果分析

Analysis of Harmonics and Effectiveness of Electronic Buck Electricity Saving Device

简述了电子降压节电器的设计原理,并进行了仿真试验,研究了节电器的等值阻抗特性、负荷电压及有功调节特性,对节电器的节电效果及所产生的谐波情况进行了分析。分析结果表明,虽然节电器可以达到好的节电效果,但更高的节电效率势必造成更大的谐波污染。

The principle of the electronic voltage reducing saving device was described briefly. Simulations had been done. The equivalent impedance, load voltage and the characteristics of active power regulation of the electricity saving device were analyzed. The effectiveness of electricity saving device and the harmonics were discussed. It could be concluded that the electricity saving device could make a good effect on energy saving, but the higher energy saving efficiency would cause more serious harmonic problem.