摘要
介绍移相电抗器在三相无源PFC电路中的工作原理,在对大电容滤波的三相不控整流电路进行仿真分析的基础上,给出了基于移相电抗器的三相无源PFC整流电路。该电路主要通过在原有电路中加入三相移相电抗器和12脉波整流器来实现三相整流电路功率因数校正和降低输入电流总谐波畸变的目的。通过优化参数配置,仿真结果显示功率因数由0.456提高到0.987,输入电流总谐波畸变THD下降到0.1以下。
The principles of phase-shifting inductance used in three-phase passive PFC rectifier circuit are introduced. After simulating and analyzing the three-phase-uncontroled rectifier circuit, the three-phase passive PFC rectifier topology based on phase-shifting inductance is presented. The tradition threephase rectifier topology is changed into the novel one by adding three-phase-shifting inductance and 12 pulse rectifier. The power factor is corrected, and the total harmonic distortion （THD） is obviously reduced. By optimizing parameter, the power factor is improved from 0.456 to 0.987, and the THD is decreased to 0.1.
出处
《电气应用》
北大核心
2007年第11期61-64,共4页
Electrotechnical Application
