Kularatna, N., Tilakaratne, L., & Parthasaradhy Kozhiparambil Kumaran. (2011). Design approaches to supercapacitor based surge resistant UPS techniques. In IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society (pp. 4094-4099).
Permanent Research Commons link: http://hdl.handle.net/10289/7376
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.
Institute of Electrical and Electronics Engineers.