临界Boost-PFC电路的简化变导通时间控制研究  

Research on Simplified Variable On-time Control of Critical Boost-PFC Circuit

作　　者：萧展涛 万陆峰 陈欣玮 肖健 XIAO Zhantao;WAN Lufeng;CHEN Xinwei;XIAO Jian(Zhangzhou Power Supply Company,State Grid Fujian Electric Power Co.,Ltd.,Zhangzhou 363000,China;Yingtan Power Supply Company,State Grid Jiangxi Electric Power Co.,Ltd.,Yingtan 335000,China;State Grid Taizhou Luqiao Power Supply Company,Taizhou 318050,China;Longyan Power Supply Company,State Grid Fujian Electric Power Co.,Ltd.,Longyan 364000,China)

机构地区：[1]国网福建省电力有限公司漳州供电公司,福建漳州363000 [2]国网江西省电力有限公司鹰潭供电分公司,江西鹰潭335000 [3]国网台州市路桥区供电公司,浙江台州318050 [4]国网福建省电力有限公司龙岩供电公司,福建龙岩364000

出　　处：《电器与能效管理技术》2023年第12期22-31,共10页Electrical & Energy Management Technology

摘　　要：针对传统恒定导通时间控制的临界Boost-PFC电路存在明显交越失真的现象,导致网侧特性较差的问题,提出了3种简化的变导通时间(VOT)控制策略。对所提3种VOT控制策略进行详细的对比分析,最后进行计算机仿真和200 W样机实验验证。计算机仿真和实验结果均表明,所提3种VOT控制策略均能有效改善电路的网侧特性,并能提高电路的效率。Aiming at the problem of poor line characteristics of the critical Boost-PFC circuit with traditional constant on-time control for the obvious crossover distortion,three simplified variable on-time(VOT)control strategies were proposed to improve the line characteristics of the circuit.The three kinds of VOT control strategies were compared and analyzed in detail.Finally,the computer simulation and 200 W prototype experiment were carried out.The computer simulation and experimental results show that the proposed three VOT control strategies can effectively improve the grid-side characteristics of the circuit and the efficiency of the circuit.

关 键 词：临界Boost-PFC电路 变导通时间 功率因数 网侧特性 效率 

分 类 号：TM46[电气工程—电器]