电气工程学报 ›› 2018, Vol. 13 ›› Issue (9): 32-37.doi: 10.11985/2018.09.006

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平均电流控制型移相全桥DC/DC变换器设计方法的研究

丁奇,杨海涛,刘聪   

  1. 空军工程大学航空机务士官学校 信阳 464000
  • 收稿日期:2017-09-24 出版日期:2018-09-25 发布日期:2019-11-29
  • 作者简介:丁奇 男 1982年生,讲师,硕士,研究方向为电力电子与电力传动。|杨海涛 男 1977年生,副教授,硕士,研究方向为电气工程及其自动化。

Research on Design Method for Average Current Model Control Phase-Shift Full Bridge DC-DC Converter

Ding Qi,Yang Haitao,Liu Cong   

  1. School of Aeronautical Maintenance NCO, Air Force Engineering University Xinyang 464000 China
  • Received:2017-09-24 Online:2018-09-25 Published:2019-11-29

摘要:

平均电流控制型移相全桥DC/DC变换器具有良好的动、静态性能,但电路结构较复杂,控制参数难整定。为此本文对ZVS移相全桥DC/DC变换器的原理和工作过程进行了深入分析,建立了变换器主电路的小信号模型,在此基础上,建立了基于平均电流控制模式下变换器的小信号模型,并由此得出系统的传递函数,最终确定了控制参数。仿真和实验结果表明,本文所提出的设计方案是切实可行的。

关键词: 移相全桥DC/DC变换器, 平均电流控制, 小信号模型, 参数设计

Abstract:

Average current control mode could make phase-shift full bridge dc-dc converter get superior dynamic and static characteristics,but it is difficult to design control parameters for its complicated circuit construction. In the paper, the principle and working process of PS-FB-ZVS converter is expounded in detail, and its small signal model is established, then the average current mode control system’s snall signal mode is build and its transfer function is set up, finally the control parameters are designed. At the end of the paper, simulation and experimental results are given to verify the proposed analysis and design.

Key words: Phase-shift full bridge DC/DC converter, average current mode control, small signal model, parameter design

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