同步整流直流电源系统供电可靠性研究  

Research on Power Supply Reliability of Synchronized Rectifier DC Power Supply System

作　　者：赵宁 阮景义[2] 杨运东[2] ZHAO Ning;RUAN Jing-yi;YANG Yun-dong(China Academy of Information and Communications Technology,Beijing 100191,China;ZTE Corporation,Shenzhen 518055,China)

机构地区：[1]中国信息通信研究院,北京100191 [2]中兴通讯股份有限公司,广东深圳518055

出　　处：《通信电源技术》2019年第9期14-15,19,共3页Telecom Power Technology

摘　　要：通过参数计算、仿真分析和现场实验,验证了LLC+同步MOS整流方案在交流停电和整流单元输出短路故障下对新一代高效直流电源系统母排电压变化的影响,分析了引起主设备低压关机和电源系统过压关机保护的原因,得出了同步整流短路故障对直流电源系统供电可靠性的不利影响,并给出了解决方案。Through parameter calculation,simulation analysis and field experiment,the influence of LLC+synchronous MOS rectifier scheme on bus voltage variation of new generation high-efficiency DC power supply system under AC power outage and short circuit fault of rectifier unit output is verified.The causes of low voltage shutdown of main equipment and overvoltage shutdown protection of power supply system are analyzed.The adverse effects of synchronous rectification and short circuit fault on power supply reliability of DC power supply system are obtained,and the solutions are given.

关 键 词：LLC 同步整流 直流电源系统 可靠性 

分 类 号：TM7[电气工程—电力系统及自动化]