Design approaches to supercapacitor based surge resistant UPS techniques

Author

Kularatna, Nihal ; Tilakaratne, Lasantha ; Kumaran, Parthasaradhy Kozhiparambil

fYear

2011

fDate

7-10 Nov. 2011

Firstpage

4094

Lastpage

4099

Abstract

Time constants of supercapacitors are in the range of 100mS to tens of seconds compared to the time durations of power line transients, which are usually within a few hundred microseconds. Therefore supercapacitors should withstand short duration surges with energy values specified in IEEE C62-41 series and IEC 61400-4-5 and similar standards. After experimentally confirming this useful property of supercapacitors, new topologies for supercapacitor based surge-resistant uninterruptible power supplies were developed. Paper summarizes the approach to developing suitable topologies for surge-resistant UPS systems based on supercapacitor energy circulation techniques, despite the lower continuous DC voltage ratings of commercial supercapacitors.

Keywords

IEEE standards; network topology; power cables; supercapacitors; surges; uninterruptible power supplies; IEC 61400-4-5 standard; IEEE C62-41 series; commercial supercapacitor; energy value; lower continuous DC voltage rating; power line transient; supercapacitor based surge resistant UPS technique; supercapacitor based surge-resistant uninterruptible power supply; supercapacitor energy circulation technique; time constant; Inverters; Supercapacitors; Surge protection; Surges; Transient analysis; Uninterruptible power systems; Supercapacitors; transient propagation; uninterruptible power supplies;

fLanguage

English

Publisher

ieee

Conference_Titel

IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society

Conference_Location

Melbourne, VIC

ISSN

1553-572X

Print_ISBN

978-1-61284-969-0

Type

conf

DOI

10.1109/IECON.2011.6119982

Filename

6119982