带开关电容网络的交错并联磁集成电感Boost变换器
作者:
作者单位:

作者简介:

通讯作者:

基金项目:

国家自然科学基金资助项目(51177067);辽宁省自然科学基金资助项目(201602359)


Interleaved Parallel Boost Converter with Switched Capacitor Network and Magnetic Integrated Inductor
Author:
Affiliation:

Fund Project:

Project Supported by National Natural Science Foundation of China(No.51177067); Liaoning Province Natural Science Foundation of China(No.201602359).

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    针对传统交错并联Boost变换器电压增益低、开关管电压应力高、电感电流纹波大等问题,提出一种新型交错并联Boost变换器。该变换器用2个开关电感单元分别代替储能电感L1L2,并对开关电感进行耦合集成,在此基础上增加了1个二极管和2个电容构成开关电容网络。分析了变换器在不同占空比下的工作模态,推导了电压增益公式,分析了开关管电压应力和电感电流纹波的大小。与传统交错并联Boost变换器相比,该变换器性能得到明显提升,尤其在占空比D>0.5的情况下电压增益是传统交错并联Boost变换器的3(1+D)倍,开关管的电压应力减小了2/3,电感电流纹波也减小近一半。最后实验验证了理论分析的正确性。表明带开关电容网络的交错并联磁集成电感Boost变换器有着优良的工作性能。

    Abstract:

    In consideration of the problems in the traditional interleaved parallel Boost converter, such as low voltage gain, high voltage stress in the switched tube, large current ripple of inductor current, etc., a novel interleaved parallel Boost converter was presented. First, two switched inductor units were used to replace storage inductors L1 and L2, and the switched inductors were coupled and integrated. On this basis, one diode and two capacitors were added to form a switched capacitor network. Second, the working modes at different duty cycles were analyzed, the expression of voltage gain was derived, and the voltage stress in the switched tube and the size of inductor current ripple were analyzed. Compared with the traditional interleaved parallel Boost converter, the performance of the proposed converter was improved substantially. Especially, compared with the traditional interleaved parallel Boost converter, when the duty cycle D was larger than 0.5, the voltage gain of the proposed converter was 3(1+D) times higher, and the voltage stress in the switched tube and the current ripple of inductor current were reduced by two thirds and one half, respectively. Finally, the theoretical analysis was verified by experimental results, showing that the proposed converter had excellent operating performance.

    参考文献
    相似文献
    引证文献
引用本文

荣德生,段志田,李洪珠,杨干兴.带开关电容网络的交错并联磁集成电感Boost变换器[J].电源学报,2019,17(4):35-43

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
历史
  • 收稿日期:2016-11-24
  • 最后修改日期:2018-12-24
  • 录用日期:2017-02-13
  • 在线发布日期: 2019-08-06