Design of Robust Controller for Single-Phase Double-Conversion UPS System Seung-Beom Lim, Young-Min Seol, Sang-Hoon Kim, Jin-Woo Lee, and Soon-Chan Hong Dankook University, Korea, Kangwon National University, Korea

Design of Robust Controller for Single-Phase
Double-Conversion UPS System

Seung-Beom Liml, Young-Min Seo, Sang-Hoon Kim, Jin-Woo Lee, and Soon-Chan Hongl
 Dankook University, Korea,  Kangwon National University, Korea, Doowon Technical College,
Koreabus1327@hotmail.com, maniyan@nate.com, kshoon@kangwon.ac.kr, jinwoo@doowon.ac.kr, schong@dku.edu

Abstract-UPS is largely divided into passive-standby, line interactive,
and double-conversion types. In general, a double conversion
type is used at a site requiring a high reliability. The
main function of the double-conversion UPS is providing the
constant voltage, constant frequency, regardless of the linear or
non-linear load and variation of the load. In this paper, the
robust controller of the single phase double-conversion UPS is
designed and its performance is verified by both simulations and
experimentation.