星载SpaceVPX单机二次电源双冗余交叉供电设计  

Dual-redundant Cross-power Supply Design for Secondary Power Supply of Spaceborne VPX Chassis

作　　者：吴侃侃[1] 王巧玲 张记瑞 周军[1] 李林伟 WU Kankan;WANG Qiaoling;ZHANG Jirui;ZHOU Jun;LI Linwei(Shanghai Institute of Satellite Engineering,Shanghai 201109,China;Shanghai Academy of Spacecraft Technology,Shanghai 201109,China;Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,China)

机构地区：[1]上海卫星工程研究所,上海201109 [2]上海航天技术研究院,上海201109 [3]北京跟踪与通信技术研究所,北京100094

出　　处：《计算机测量与控制》2025年第4期162-170,共9页Computer Measurement &Control

摘　　要：针对SpaceVPX规范二次电源冗余管理和故障容错增强要求,开展了双冗余高可靠二次电源系统设计,由二次电源模块完成一次母线至二次电的转换,由SpaceUM模块完成二次电分组输入选择、通道控制输出选择两级选择,以及输出通道开关控制,实现二次供电交叉冗余容错;SpaceUM模块电源管理芯片实现二次电输入电压、电流监测和第一级选择,由继电器组实现二次电分流后的输出通道独立开关控制,电源管理芯片同时完成每个独立供电输出通道供电负载电压、电流状态监测,并作为对继电器组开关控制的依据,实现单机二次电自主故障诊断和重构;根据系统可靠性概率分析,相比整机主备份双冗余供电方式,SpaceUM模块可以提高二次电源系统可靠性;以单模块12 V/8 A供电输出为例,完成标准6U尺寸SpaceUM模块研制,经测试验证,可以满足二次电状态检测、选择控制和故障容错的高可靠要求。In view of the redundancy management and fault tolerance enhancement requirements of the SpaceVPX specification secondary power supply,a dual-redundant and high-reliability secondary power supply system design is carried out.The conversion from primary bus to secondary power is completed in secondary power supply module,and the SpaceUM module completes the two-level selection of secondary power group input,channel control output,and output channel switch control,achieving cross redundant fault tolerance in secondary power supply.The power management chip of the SpaceUM module realizes the secondary power input voltage,current monitoring and first-stage selection,and the output channel after the secondary power shunt is independently switched and controlled by the relay group.The power management chip simultaneously monitors the voltage and current status of each independently powered output channel,and as the basis for controlling the switch of the relay group,it achieves autonomous fault diagnosis and reconstruction of the secondary power in the chassis.According to the system reliability probability analysis,the SpaceUM module can improve the reliability of the secondary power supply system compared with the whole standalone dual-redundant power supply topology.Taking the 12 V/8 A power supply output of a single module as an example,the SpaceUM module with the standard 6U is developed.Testing and verification show that it can meet the high reliability requirements of secondary power state detection,selection control and fault tolerance.

关 键 词：SpaceVPX SpaceUM 二次电源 电源监测 开关控制 

分 类 号：V446.9[航空宇航科学与技术—飞行器设计]