文档介绍：小功率 UPS供电系统设计方案
目录
摘要 3
Abstract 4
第一章小功率UPS供电系统设计简介 5
简介 5
6
7
第二章UPS电源分析 8
UPS电源发展历史 8
UPS电源工作原理 8
第三章UPS中主要电路介绍 11
11
12
13
16
第四章 UPS蓄电池介绍 18
18
20
20
21
总结 23
致谢 24
参考文献 25
附录1小功率UPS电路框图 26
附录2小功率后备式UPS主电路图 27
摘要
不间断电源(UPS),是能够提供持续、稳定、不间断电源供应的重要外部设备,可以在市电出现异常时,有效的净化市电,还可以在市电突然中断时持续一定时间给电脑等设备供电,使工作人员有充裕的时间应付。随着信息化社会的来临,UPS广泛地应用于从信息采集、传送、处理、储存到应用的各个环节,其重要性是随着信息应用重要性的日益提高而增加的。
根据设备的情况、用电环境以及想达到的电源保护目的,可以选择适合的UPS。本文主要讨论小功率UPS供电系统,选用后备式工作方式,UPS平时处于蓄电池充电状态,在停电时逆变器紧急切换到工作状态,将电池提供的直流电流转变为稳定的交流电输出,以满足内置开关电源的小功率设备不间断供电要求。
关键词: 不间断电源用电环境电源保护供电系统
Abstract
Uninterruptible power supply ( UPS ), is able to provide sustained, steady,uninterrupted power supply, can be in power is abnormal, effective cleaning power, can also be in the city electricity is suddenly interrupted for a certain time puters and other equipment power supply, so that the staff have plenty of time to deal with. With ing of information society, UPS is widely used in information collection, transmission, from processing, storage to the application of the various links, its importance is as information application of the growing importance of increases.
According to the situation of electricity equipment, environment and to meet the power protection purposes, can choose to suit UPS. This paper mainly discusses the small power UPS power supply system, selection of mothball type working mode, UPS is usually in a state of charge of a battery, in case of power inverter emergency switching to working condition, the battery provides DC current into the stable alternating current output, in order to satisfy the inner switch of small power equipment uninterruptible power supply requirements.
Key words: uninterruptible power supply ;electrical environment ;powerprotection ;power supply system
第一章小功率UPS供电系统设计简介
UPS是一种向负载提供不间断、优质、高效、可靠的交流电能的重要外