高功率因数变流器的分析及控制实现

Analysis and control implement of high power factor rectifier

传统的相控整流器存在功率因数低、谐波成分高等缺点,本文在分析三相电压型变流器系统数学模型的基础上,将滞环电流控制策略应用于该类系统并构造试验样机.该变流器系统实现了输入电流的正弦化,具有高功率因数,得到了与仿真分析相一致的结果,证明了该种控制的优越性.

<Abstrcat> Based on the analysis of rectifier model, this paper presents a three-phase rectifier which adopted the hysteresis current control strategy since traditional phase-control rectifier has some disadvantages, such as low power factor and high harmonic. The rectifier system achieves sinusoidal input current, possessing of high power factor, which is unanimous with simulation results. The superiority of the system is proved.