基于平均电流的电压前馈控制图腾柱PFC的研究  

Research on voltage feedforward control of totem pole PFC based on average current

作　　者：邓孝祥 苏本勇 Deng Xiaoxiang;Su Benyong(School of electrical and control engineering,Heilongjiang Uni versity of science and technology,Harbin Heilongjiang,150022)

机构地区：[1]黑龙江科技大学电气与控制工程学院,黑龙江哈尔滨150022

出　　处：《电子测试》2021年第3期52-53,共2页Electronic Test

摘　　要：图腾柱PFC变换器具有效率高,损耗低等优点,本文介绍了其工作原理及电流校正控制方式,提出了一种基于平均电流的电压前馈控制策略,并进行了主电路的参数计算。利用本文所提出的控制策略,可以使数字控制系统在极短的时间内对外界电压突变做出反映,提高系统响应时间和稳定性。并通过Simulink搭建了系统仿真模型,仿真表明该控制方法可以在进行输入电流校正的同时提高系统响应能力和稳定性。Totem pole PFC converter has the advantages of high efficiency and low loss.This paper introduces its working principle and current correction control mode,proposes a voltage feedforward control strategy based on average current,and calculates the parameters of the main circuit.Using the control strategy proposed in this paper,the digital control system can reflect the sudden change of external voltage in a very short time,and improve the response time and stability of the system.The system simulation model is built by Simulink.The simulation results show that the control method can improve the response ability and stability of the system while correcting the input current.

关 键 词：图腾柱 PFC 电压前馈 SIMULINK 

分 类 号：TM46[电气工程—电器]