电气工程学报 ›› 2017, Vol. 12 ›› Issue (6): 14-18.doi: 10.11985/2017.06.003

• 理论研究 • 上一篇    下一篇

空间电源DC-DC变换器的研究

宋丹,吉瑞萍   

  1. 西安微电子技术研究所 西安 710000
  • 收稿日期:2015-07-29 出版日期:2017-06-25 发布日期:2019-12-20
  • 作者简介:宋 丹 女 1990年生,硕士,研究方向为数字电源技术。|吉瑞萍 女 1991年生,博士,研究方向为航空电气系统。

Study of DC-DC Converter for Space Power System

Song Dan,Ji Ruiping   

  1. Xi'an Microelectronic Technology Institute Xi'an 710000 China
  • Received:2015-07-29 Online:2017-06-25 Published:2019-12-20

摘要:

非隔离型Weinberg变换器(NIWC)具有高功率密度、易于并联等优点,适合作为航天电源系统中的蓄电池放电调节器(BDR)和顺序开关分流最大功率调节器(S3MPR)或顺序开关串联分流最大功率调节器(S4MPR)的后级变换器。本文对该变换器的工作原理进行了分析,推导出其小信号模型,在保证输出电压电流纹波的前提下,设计了主电路参数。应用Matlab对系统传递函数进行分析后,设计了有源超前—滞后补偿网络,以保证系统的快速性和稳定性。仿真和实验结果验证了系统设计的正确性。

关键词: 空间电源, Weinberg变换器, 传递函数, 补偿网络

Abstract:

With high power density and easy paralleling, the non-isolated Weinberg converter (NIWC) is suitable as battery discharge regulator (BDR) and DC-DC converter after sequential switch shunt maximum power regulator (S3MPR) or sequential switch series shunt maximum power regulator (S4MPR) in space power system. The working principle of the converter is analyzed, its small-signal model is deduced. In the premise of ensuring output voltage and current ripples, the main circuit parameters are designed. After the analysis of system transfer function with Matlab, in order to ensure rapidity and stability of the system, the active lead-lag compensation network is designed. The simulation and experimental results verify the correctness of system design.

Key words: Space power system, Weinberg converter, transfer function, compensation network

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