摘要
从功率因数的定义出发 ,阐述了电网不良功率因数的成因、危害及传统功率因数校正方法的不足 {体积大、功率因数低 (0 .6左右 )、谐波危害大 }。提出了一种新型 (Boost型 )基于有源开关或AC/DC变换技术的有源功率因数校正器 (APFC)校正方案的主电路拓扑结构 ,对其功率因数校正过程作了详细的分析 ,并给出电路的设计方案、功率因数校正原理及实现方法及仿真和实验结果 。
The definition of power factor, the problems of conventional switching power supply and the methods,characteristics are discussed in this article. A novel main circuit topology about APFC and circuits design are given. Moreover its operation process and the methods of power factor correction principle are discussed and analyzed in detail. The results of experiment and PSPICE simulation are showed as well. In the end, it presents the use of APFC IC in foreign.
出处
《江西电力职工大学学报》
2002年第2期1-5,共5页
Journal of Jiangxi Electrical University For Staff
