摘要
众所周知,普通的整流器由于无源输出滤波器的存在使得输入的线电流畸变为尖脉冲形状,并非正弦波形,这就使得电路的功率因数随之降低。但有源功率因数矫正(APFC)技术可以利用电压和电流的反馈原理,使得输入电流波形很好地跟随输入电压波形变化,从而实现功率因数校正的目的。本文采用的是模糊控制的有源功率因数校正(APFC)技术,同时还可以调节输出电压的大小。
We know that due to the passive output filter, the input current of ordinary rectifier distorted in spike shape instead of a sine wave, which makes the circuit power factor decreases. However, Active Power Factor Correction(APFC) technology can utilize the feedback principle of voltage and current to make the input current waveform follow the change of input voltage waveform well, so as to achieve the purpose of power factor correction. This paper uses the fuzzy control of active power factor correction(APFC)technology, which can adjust the output voltage.
出处
《科技广场》
2017年第10期57-63,共7页
Science Mosaic
