An overview of uninterruptible power supplies

被引:45
作者
Racine, MS [1 ]
Parham, JD [1 ]
Rashid, MH [1 ]
机构
[1] Univ W Florida, Dept Elect & Comp Engn, Pensacola, FL 32514 USA
来源
37TH NORTH AMERICAN POWER SYMPOSIUM, PROCEEDINGS | 2005年
关键词
converters; ferroresonance; inverters; uninterruptible power systems;
D O I
10.1109/NAPS.2005.1560518
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
An uninterruptible power supply (UPS) can range from a 9 volt battery all the way to an extremely large and costly battery system. The UPS sits between a power supply such as a wall outlet and a device like a computer to prevent undesired features that can occur within the power source such as outages, sags, surges, and bad harmonics from the supply to avoid a negative impact on the device. There are several types of UPSes as they strictly relate to computers. The standby UPS is a battery backup to fill in the void of power loss, while the ferroresonant stand by Couples the battery back up with the power supply by a transformer, where the transformer acts as a buffer from the power supply to the stand by supply. The line interactive UPS uses an inverter converter only, with a power supply the stand by battery is charged up, and with a loss of the primary power supply, the inverter converter switches over to the battery back up with a much quicker switching time that the stand by UPS.
引用
收藏
页码:159 / 164
页数:6
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