一种适用于IPOS DC-DC变换器的均压控制策略研究  

Research on V oltage A veraging Control Strategy for IPOS DC-DC Converters

作　　者：刘艺滨 于少娟[1] LIU Yi-bin;YU Shao-juan(Taiyuan University of Science and Technology,School of Electronics Information Engineering,Taiyuan 030024,China)

机构地区：[1]太原科技大学电子信息工程学院,太原030024

出　　处：《太原科技大学学报》2021年第3期175-180,187,共7页Journal of Taiyuan University of Science and Technology

基　　金：山西省重点研发计划(201803D121106)。

摘　　要：根据多模块输入并联输出串联IPOS型DC/DC变换器在运行时经常出现的串行输出端无法正常均压,影响系统正常运行的问题,研究了一种适用于该结构的改良下垂均压控制策略,利用子模块电路电感电流补偿值与串行输出端电压的下垂特性实现了初步的均压控制,面对下垂控制方法引起的静差与精度问题,再一次改良了下垂控制以达到更好的均压效果。利用小信号建模分析了该系统的稳定性和合理性,通过Matlab/Simulink仿真验证了该策略的可行性和均压效果。According to the multi-module input parallel output series(IPOS)type DC/DC converter,the serial output terminalduring operation cannot be properly equalized,which affects the normal operation of the system.The improved drooping equalization control strategy of the structure realizes the preliminary equalization control using the sub-module circuit inductor current compensation value and the droop characteristic of the serial output terminal voltage,and the static difference and accuracy caused by the droop control method are improved again.The droop control is used to achieve a better pressure equalization effect.The stability and rationality of the system are analyzed by small-signal modeling.The feasibility and equalization effect of the strategy are verified by Matlab/Simulink simulation.

关 键 词：输入并联输出串联 均压 改进下垂控制 DC/DC变换器 

分 类 号：TM341[电气工程—电机]