基于TMS320F28027的数字交错式PFC控制

Digital Interlaced PFC Control Based on TMS320F28027

基于DSP芯片TMS320F28027和平均电流双环控制PFC算法,设计一种新型交错式功率因数校正系统。系统调试结果表明,相对于传统的模拟电路构成的PFC控制电路,该系统具有动态响应速度快、抗电源扰动能力强等特点,能有效降低输入电压和电流的纹波,减少电力电子的应力,简化了PFC变换器的设计,提高了功率因素校正系统的稳定性。

This paper presents a new interleaved power factor correction system based on DSP chip TMS320F28027 and the average current dual-loop control PFC algorithm. System debugging results show that compared with the traditional PFC control with analog cir- cuit , the system has faster dynamic response and greater ability of power supply disturbances capability. The system can effectively re- duce the input voltage and current ripple , and decrease the stress of power electronics , simplify the design of the PFC converter and improve the stability of the interleaved power factor correction system.