摘要
设计了一种矿用直流不间断电源,解决了矿用供电电网停电导致通信及监控设备无法正常工作的现状.该系统采用降压型DC-DC转换器XL2576、三端可调稳压管LM317T及LM339实现对不间断电源的管理.在交流供电正常时,由交流供电系统供电;当交流电发生故障时,由镍氢蓄电池提供电源,满足了矿用不间断电源的要求.测试结果表明:所设计的电源负载效应及源效应均小于5%,纹波电压小于1%,满足本安型电气设备的要求.
In order to solve the problem that the communication and monitoring equipments don' t work due to grid failure, a mine-used uninterruptible power supply was designed. The management of uninterrupfible power supply was realized by DC-DC Converter XL2576, LM317T and LM339. When AC power is not normal, the Ni-MH battery sup- plies power, so the continuous work of the loaded resistance is ensured. The test results showed that the designed pow- er supply has low load effect and source effect lower than 5% , wave voltage under 1% , the specification reached the requirements of intrinsically safe electrical equipment.
出处
《信阳师范学院学报(自然科学版)》
CAS
北大核心
2015年第2期263-266,共4页
Journal of Xinyang Normal University(Natural Science Edition)
基金
河南省科技攻关项目(132102210523)
河南省基础与前沿研究项目(142300410195)