交错式双Buck单相整流器拓扑与参数设计  

Design of Topology and Parameters of Interleaved Double Buck Single-phase Rectifier

作　　者：艾精文 丁庆 高英瀚 唐芬[2,3] 童亦斌 AI Jingwen;DING Qing;GAO Yinghan;TANG Fen;TONG Yibing(Shenzhen Power Supply Bureau Co., Ltd., Shenzhen, Guangdong 518000,China;National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing 100044, China;Collaborative Innovation Center for Electric Vehicles, Beijing 100044, China)

机构地区：[1]深圳供电局有限公司,广东深圳518000 [2]北京交通大学国家能源主动配电网技术研发中心,北京100044 [3]北京电动车辆协同创新中心,北京100044

出　　处：《机车电传动》2019年第5期87-90,共4页Electric Drive for Locomotives

基　　金：国家重点研发计划项目(2018YFB0905305);中国南方电网有限责任公司科技项目(090000KK52190002)

摘　　要：传统的单相整流器为升压变换模式,在低压应用场合,需要在整流器输出端增加额外的降压环节。双Buck单相整流器能够直接实现单级降压整流,同时具有功率解耦功能,能够实现对直流侧二次电压纹波的抑制。文章首先对传统整流器存在的二次功率耦合问题进行分析,然后围绕交错式双Buck整流器的工作原理及硬件参数设计展开研究。在此基础上,提出了基于单载波的交错式脉宽调制方法来简化控制器设计,最后通过试验对交错式双Buck单相整流器的单级降压整流、功率解耦和交错式脉宽调制功能进行了验证。The traditional single-phase rectification system is a boost system, so it requires an additional output buck link in low- voltage applications. The double buck rectifier can directly realize single-stage buck rectification, and has power decoupling function, which can suppress the secondary ripple in the DC side. Firstly, the problem of secondary power coupling in the traditional rectification system was analyzed, and then the working principle and hardware parameter design of the interleaved double buck rectifier were studied. On this basis, the interleaved pulse width modulation strategy based on single carrier was presented to simplify controller design. Finally, the single-stage buck rectification, power decoupling and interleaved pulse width modulation of the interleaved double buck sing-phase rectifier were verified by experiments.

关 键 词：整流器 参数设计 功率解耦 BUCK电路 

分 类 号：U264.37[机械工程—车辆工程]