CCM模式下交错式APFC的研究与实现

Study and Realization of Interleaved Active Power Factor Correction Under CCM Mode

叙述了电力系统谐波的产生原因及功率因数校正的重要性,介绍了传统有源功率因数校正的原理,提出了CCM模式下交错式有源功率因数校正的方法。采用德州仪器公司单芯片双相交错式UCC28070作为控制器件,实现功率因数校正,大大减少了电流谐波,提高了输入端的功率因数。

In this paper, the reason producing harmonic and the importance of power factor correction are clarified. The principles of Boost PFC converter are summarized and interleaved active power factor correction under CCM mode is presented. A power factor corrector is realized by two-phase interleaved CCM PFC controller UCC28070 of Texas Instruments Company. Power factor correction is achieved by this power factor corrector while the current harmonic is greatly reduced and the input power factor is improved.