Low Cost and High Performance Single Phase UPS Using a Single-Loop Robust Voltage Controller Jun-Keun Ji†, Dae-Kwan Ku*, and Seung-Beom Lim** †Department of Electrical Engineering, Soonchunhyang University, Asan, Korea

Low Cost and High Performance Single Phase UPS Using a Single-Loop Robust Voltage Controller Jun-Keun Ji†, Dae-Kwan Ku*, and Seung-Beom Lim** †

Department of Electrical Engineering, Soonchunhyang University, Asan, Korea *VCTech Co., Ltd., R&D Center, Gunpo, Korea **EON Co., Ltd., R&D Center, Anyang, Korea

 Abstract

 Uninterruptible Power Supplies (UPSs) can be largely divided into the passive-standby, line-interactive and double-conversion methods. This paper proposes a double-conversion UPS with a low cost and high performance. This single phase UPS uses a single-loop robust voltage controller and 1-switch voltage doubler strategy PFC. The proposed UPS is composed of a single phase PFC, a half-bridge inverter, a battery charger and a battery discharger. Finally, the validity of proposed UPS was verified by various experimental tests. Key words: 1-switch voltage doubler strategy PFC, Low cost and high performance, Single phase UPS, Single-loop robust voltage controller 

 LINK  FULL PAPER:

http://www.koreascience.or.kr/article/CFKO201136262564307.page

LINK :Design of Robust Voltage Controller for Single-phase UPS Inverter 단상 UPS 인버터의 강인한 전압제어기 설계 Ku, Dae-Kwan ; Ji, Jun-Keun ; Cha, Guee-Soo ; Moon, Jun-Hee

 http://www.koreascience.or.kr/article/JAKO201128563050510.page

LINK: Hybrid UPS with Energy Storage System Function Seung-Beom Lim✝ and Soon-Chan Hong

http://www.koreascience.or.kr/article/JAKO201419553341244.pdf