摘要
功率因数校正(PFC)电路是一种提高功率因数、减小总谐波的电路,它利用电力电子变换技术来实现功率因数校正的功能。介绍了单相PFC电路的优点及工作原理,根据其特点,采用分级控制它的运行、输入侧采用网侧电流跟随的方法,并且采用了锁相环技术保证电流和电压严格同相;输出侧采用重复PI控制策略。采用此控制方法可以使PFC电路在达到传统整流电路功能的基础上,进一步提高功率因数、减小总谐波。通过Matlab/Simulink的仿真实验,验证了该方法的可行性。
Power Factor Correction（PFC） was a circuit to improve power factor and reduce total harmonic, power electronic converter technology was used to achieve Power Factor Correction＇s function. The single-phase Power Factor Correction circuit was introduced, its advantages and the principle of work were expounded. According to the characteristics of the PFC, using hierarchical control its operation, a simple method which following the net side current was elaborated by the input stage, and the phase lock loop technique guarantee strictly in phase current and voltage was adopted. The repeat PI control strategy was used in output side. On the basic of transformer function,the power factor of the PFC could be improved and the total harmonic better could be reduced. The Matlab/Simulink results show that a good performance is owned by the controller.
出处
《电源技术》
CAS
CSCD
北大核心
2015年第3期586-587,603,共3页
Chinese Journal of Power Sources
