航天用带耦合电感的电流连续型推挽类拓扑研究

发布时间：2018-02-01 06:37

本文关键词： 电源控制器耦合电感电流连续推挽类拓扑生成规则　出处：《电工技术学报》2014年10期 　论文类型：期刊论文

【摘要】：电流连续型直流变换器具有高功率密度、高效率和低电磁干扰等优势,因而适用于航天领域。本文提出了基于耦合电感的电流连续型推挽类拓扑的概念。以电流连续为目的,对传统推挽单元进行改进,得到五种新型推挽单元,以此为基础,提出基于耦合电感的推挽类拓扑的生成规则,并推衍出各类推挽单元的拓扑族。依据母线侧电流为低纹波的原则,将这些拓扑分成适用于BDR和适用于BCR两类,并列表比较其特性,总结各自的适用场合,为不同功率等级PCU中的BDR和BCR提供最优拓扑选择。最后,通过研制新生成升压比最高拓扑的试验样机验证理论分析的正确性。
[Abstract]:The current-continuous DC / DC converter has the advantages of high power density, high efficiency and low electromagnetic interference. In this paper, the concept of current continuous push-pull topology based on coupling inductor is proposed. For the purpose of current continuity, the traditional push-pull elements are improved and five new push-pull elements are obtained. On this basis, the generation rules of push-pull topology based on coupling inductors are proposed, and the topological families of various push-pull units are derived. These topologies are divided into two categories, which are suitable for BDR and BCR, and their characteristics are compared in parallel tables, and their respective applications are summarized. It provides optimal topology selection for BDR and BCR in PCU with different power levels. Finally, the correctness of the theoretical analysis is verified by developing a new prototype with the highest boost ratio.
【作者单位】：北京交通大学电气工程学院;
【基金】：台达电力电子科教发展基金(DREG2011010) 中国博士后基金(2011M500225) 高等学校博士学科点专项科研基金(20110009120032)资助项目
【分类号】：TM46
【正文快照】： 1引言电流连续型直流变换器是指任意时刻输入输出电流均大于零的变换器,相比于一侧电流断续的传统直流变换器,电流连续型直流变换器具有以下优点[1,2]:(1)降低电磁干扰,提高系统的电磁兼容性能。(2)减小滤波元件的体积,提高功率密度和动态响应特性。(3)减小电流应力,提高电路

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