一种新型三相功率因数校正器的研究

Research on A New Three-phase Power Factor Corrector

以单相Cuk型变换器合成三相功率因数校正电路为研究对象,将三相交流电分成单相A-B、B-C、C-A进行功率因数校正,运用升压型平均电流控制的功率因数校正思想,解决了常规单相Cuk型有源功率因数校正电路直接并联存在的相间耦合问题。分析了主电路结构并进行参数计算,最后通过MATLAB仿真和实验结果验证了理论研究的可行性。

In this paper, we investigate the three-phase power factor corrector composed of single-phase APFC of Cuk converter. We divide the three-phase AC current into A-B, B-C, and C-A single-phase current to carry on the power factor correction separately. This method solves the problems of phase interaction among three-phase Active Power Factor Correction circuit based on normal single-phase APFC Cuk circuits simply in parallel. We analyze the structure and parameters of the main circuit and validate our solution under MATLAM simulation.