基于最大均流法的并联变换器均流环路分析与设计  

Analysis and Design of Parallel Converter with Maximal Current Sharing Method

作　　者：刘祖贵 兰勇 贾吉武 LIU Zugui;LAN Yong;JIA Jiwu(Great Wall Power Supply Technology Co.,Ltd.,Shenzhen 518108,China)

机构地区：[1]长城电源技术有限公司,广东深圳518108

出　　处：《通信电源技术》2022年第15期19-25,共7页Telecom Power Technology

基　　金：财政部中央国有资本经营预算重大技术创新及产业化资金项目(2150551)。

摘　　要：为了实现供电单元并联的功能性和可靠性,以确保在稳态和瞬态负载条件下各供电单元之间的负载电流均衡分布,需要对并联变换器的均流环路进行分析、设计和验证。通过单机模型的建立和环路分析,建立了基于最大均流法的并联系统小信号模型,对恒流和恒阻两种通用负载模式下的均流环路模型展开了分析,提供了可行的均流环频率响应测试方法来验证设计,结合所建立的模型搭建了仿真电路和实验样机。仿真和实验结果证明了理论分析和数学模型的正确性。In order to realize the function and reliability of parallel power supply units and ensure the balanced distribution of load current between each power supply unit under steady and transient load conditions,it is necessary to analyze,design and verify the current sharing loop of the parallel converter.In this paper,a small signal model is established for parallel current sharing system based on maximal current sharing method,and the current sharing loop model under constant current and constant resistance load mode is theoretically analyzed.A feasible frequency response test method for the current sharing loop is provided to verify the design.Combined with the simulation circuit and experimental prototype,the simulation and experimental results prove the correctness of the theoretical analysis and mathematical model.

关 键 词：主动均流 最大均流 并联均流 均流环路 频率响应 

分 类 号：TM46[电气工程—电器]