航空学报 > 2014, Vol. 35 Issue (2): 506-515   doi: 10.7527/S1000-6893.2013.0325

适用于航天领域的高效叠加式升压变换器

陈骞, 郑琼林, 李艳   

  1. 北京交通大学 电气工程学院, 北京 100044
  • 收稿日期:2013-05-16 修回日期:2013-06-27 出版日期:2014-02-25 发布日期:2013-06-28
  • 通讯作者: 郑琼林,Tel.:010-51684911 E-mail:tqzheng@bjtu.edu.cn E-mail:tqzheng@bjtu.edu.cn
  • 作者简介:陈骞 男,博士研究生。主要研究方向:卫星电源系统。Tel:010-51684911-20 E-mail:chenqian05291148@126.com;郑琼林 男,博士,教授,博士生导师。主要研究方向:牵引供电与交流传动技术、低损耗功率变流系统、电力系统中的电力电子技术、电力有源滤波与电能质量控制等。Tel:010-51684911 E-mail:tqzheng@bjtu.edu.cn
  • 基金资助:

    中国博士后科学基金(2011M500225);高等学校博士学科点专项科研基金(20110009120032)

High Efficiency Stacked Boost Converter in Aerospace Applications

CHEN Qian, ZHENG Qionglin, LI Yan   

  1. School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Received:2013-05-16 Revised:2013-06-27 Online:2014-02-25 Published:2013-06-28
  • Supported by:

    China Postdoctoral Science Foundation (2011M500225);Research Fund for the Doctoral Program of Higher Education of China (20110009120032)

摘要:

叠加式升压变换器(SBC)的部分功率不通过开关电路,而通过叠加支路直接供给负载,因此可实现较高的效率,适用于航天场合。为了避免输入输出电流断续,采用的变压器为双边磁化的隔离脉冲单元,它与电感、输出滤波电容以及叠加支路共同组成SBC变换器。根据电感位置的不同,分别提出了SBC-Ⅰ、SBC-Ⅱ和SBC-Ⅲ的基本结构与生成规则。基于生成规则推衍出9种SBC变换器,并从电流特性、输入输出电压关系、主电路传递函数、变压器的磁偏问题以及效率的角度对这9种变换器进行分析比较。最后选择一种性能最优的变换器,通过600 W的实验样机验证理论分析结果。

关键词: 蓄电池放电调节器, 输入并联输出串联, 效率, 升压变换器, 电压型变换器, 电流型变换器

Abstract:

Most of the power of a stacked boost converter (SBC) is transferred to the load directly rather than passing through a MOSFET; that is why an SBC with high efficiency is suitable for aerospace applications. In order to avoid input or output current discontinuity, a bilateral magnetized transformer is employed. The SBC is composed of a pulsating cell, an inductor, an output capacitor and a stacked branch. The structure and generation rules of three kinds of SBCs are proposed, which are named SBC-Ⅰ, SBC-Ⅱ and SBC-Ⅲ respectively. Nine topologies generated according to the generation rules are compared in terms of current characteristics, transfer function, DC magnetic bias and efficiency. In addition, experimental results by a 600 W prototype are given to verify the validity of the theoretical analysis.

Key words: battery discharge regulator, input parallel output series, efficiency, step-up converter, voltage source converter, current source converter

中图分类号: