宇航计测技术 ›› 2020, Vol. 40 ›› Issue (4): 58-63.doi: 10.12060/j.issn.1000-7202.2020.04.11

• 精密测试技术 • 上一篇    下一篇

DC-CD变换器控制技术研究与实现

张婷1；刘亚强2；王祖良1   

  1. 1.西京学院信息工程学院，西安 710123;
    2.北京安达维尔科技股份有限公司，北京 101300
  • 出版日期:2020-08-05 发布日期:2022-03-04
  • 作者简介:张婷（1988-），女，研究生，讲师，主要研究方向:开关电源。
  • 基金资助:
    陕西省科技厅科技成果转移与推广计划项目( 2020CGXNG-035)，西安市科技计划项目（2019218414GXRC020CG021-GXYD20.6, 201805043YD21CG27(1)），西京学院院基金（XJ180212），陕西省重点研发计划重点项目（2018ZDXM-NY-014）。

Research and Implementation of DC-DC Converter Control Technology

ZHANG Ting1；LIU Ya-qiang2；WANG Zu-liang1   

  1. 1.Department of Information Engineering Xijing University,Xi’an 710123,China;
    2.Beijing Andawell Science & Technology Co.,Ltd.,Beijing 101300,China
  • Online:2020-08-05 Published:2022-03-04

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摘要： DC-DC变换器工作在额定负载时，输入电压会出现扰动。工作在额定输入电压时，负载电阻也会发生突变。为了实现宽电压输入，保证变换器具有较高的输入电压调整率和负载调整率，设计了自动切换与控制策略。根据Buck-Boost型DC-DC变换器的工作特点，计算出开关的导通与关断时间点，从而精确地控制开关动作。基于并行运算和组合逻辑，在Matlab中搭建了模型，并进行了仿真和试验验证。结果表明，提出的控制方法能够有效地克服负载电流突变和输入电压扰动对变换器性能的影响。

关键词: DC-DC变换器, 并行运算, 组合逻辑, 调整率

Abstract: The input voltage will be disturbed when the DC-DC converter works at rated load.Similarly,the load resistance will be changed suddenly when it works at the rated input voltage.In order to achieve wide voltage input and ensure high input voltage regulation and load regulation of the converter,an automatic switching and control strategy are designed.According to the working characteristics of buck boost DC-DC converter,the time points of switch on and switch off are calculated,so that the switch action can be accurately controlled.Based on parallel operation and combinational logic,[JP3]the model is built in MATLAB and verified by both simulation and experiment.The results show that the influence of output load current mutation and input voltage disturbance on the converter performance can be effectively overcome by the proposed control method.

Key words: DC-DC converter, Parallel operation, Combinational logic, Adjustment rate

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