PFC无前向通道周期延时重复控制器研究  

Study on Repetitive Controller Without Period Delay in Forward Path For PFC

作　　者：田钦元 茹超超 王元宇 王者 王正仕[1] TIAN Qinyuan;RU Chaochao;WANG Yuanyu;WANG Zhe;WANG Zhengshi(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《电工技术》2023年第13期8-12,16,共6页Electric Engineering

摘　　要：重复控制具有优异的周期信号跟踪能力和抗扰能力,但在进行数字控制实现时也存在需大量存储空间的缺点。分析了传统重复控制结构前向通道周期延时环节的非必要性,并以单相图腾柱PFC作为应用场景,针对业界常用的PI+重复控制并联结构,提出一种无需前向通道周期延时环节的重复控制器,将数字实现重复控制所需的存储空间缩减至一半。通过仿真与样机实验,验证了所提控制器的有效性。Repetitive control is known as an effective method to track periodic signals and reject periodic disturbance,but it also needs a lot of storage space when implemented digitally.The non-necessity of the forward channel cycle delay link of the traditional repetitive control structure is analyzed.Taking single-phase totem pole PFC as the application scenario,a repeat controller without forward channel cycle delay is proposed for the parallel structure of PI+repeated control commonly used in the industry,which reduces the storage space required for digital repeat control to half.The effectiveness of the proposed controller is verified by simulation and experiment.

关 键 词：图腾柱PFC 重复控制 谐波抑制 

分 类 号：TM46[电气工程—电器]