A Novel AC UPS With High Power Factor and Fast Dynamic Response
Rodriguez, E.; Vazquez, N.; Hernandez, C.; Correa, J.
Industrial Electronics, IEEE Transactions on
Volume 55, Issue 8, Aug. 2008 Page(s):2963 - 2973
Digital Object Identifier 10.1109/TIE.2008.918484
Summary: This paper presents a novel ac uninterruptible-power-system (UPS) scheme with high power factor, which offers excellent characteristics such as sinusoidal input current, sinusoidal output voltage, fast regulation of the ac mains, galvanic isolation, and fast transient response. The proposed converter includes the offline–online concept, which avoids the continuous charging and discharging of the battery as it occurs in a typical online UPS. Analysis and design considerations, as well as simulation and experimental results, are given in this paper.
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