Comparison between UPS and EPS Power Supplies

Lin Guoqiang（China Construction （Shenzhen）Design International，Beijing 100013，China）

 

Abstract The functions，working principle，classification of UPS and EPS，as well as the main characteristics of the common type of back-up，on-line，on-line interactive UPS are expatiated. The parameters such as load adaptability，running environmental requirements，application scope，switching time，as well as noise，price，life etc. of UPS and EPS are compared.

Key words UPS EPS Working principle Adaptability of load

 

摘 要 分别介绍了UPS和EPS的功能、工作原理、分类，以及常见的后备式、在线式、在线交互式三种UPS的主要特点。比较了EPS与UPS的负载适应性、运行环境要求、应用范围、切换时间，以及噪音、价格、寿命等参数。

关键词 UPS EPS 工作原理 负载适应性