电子科技2024，Vol.37Issue(5)：38-46,9.DOI:10.16180/j.cnki.issn1007-7820.2024.05.006
冗余电源自动电流均衡控制策略
Research on Automatic Current Equalization Control Strategy of Redundant Power Supply
摘要
Abstract
Redundant power supplies are commonly used in systems that require long-term uninterrupted oper-ation and high reliability.When redundant power supplies are used as N +1 backup power supplies to supply power to devices at the same time,parallel current sharing must be considered.In order to solve the problem of large loss of passive redundant power supply and inability to achieve current equalization,this study adopts the design scheme of active redundancy and designs a 1 +1 redundant power supply system with two parallel DC voltage inputs.The system uses GD32E103 as the main control chip.By changing the on-resistance of MOSFET(Metal-Oxide Semiconductor Field Effect Transistor),PI(Proportional Integral)control is adopted to realize the automatic balance of the output current of two redundant power supplies.The simulation and experimental results show that the active redundancy de-sign scheme can achieve the purpose of automatic current equalization.In normal operation,the maximum error of the two current channels is less than 0.1 A,and the accuracy of current sharing meets the design requirements.关键词
冗余电源/场效应晶体管/比例积分控制/自动电流均衡/低功耗/高精度/微控制器/脉冲宽度调制/低电压Key words
redundant power/MOSFET/PI control/automatic current equalization/low power/high precision/microcontroller/PWM/low voltage分类
信息技术与安全科学引用本文复制引用
迟康伟,谢素霞,黄松,王锦浩..冗余电源自动电流均衡控制策略[J].电子科技,2024,37(5):38-46,9.基金项目
国家重点研发计划(2018YFB0106300) National Key R&D Plan(2018YFB0106300) （2018YFB0106300）
