Uninterrupted power supply based on a new transformerless integrated power converter

Author

dos Santos, Euzeli Cipriano ; Nezamuddin, O.

Author_Institution

Purdue Sch. of Eng. & Technol., Indiana Univ.-Purdue Univ., Indianapolis, IN, USA

fYear

2014

fDate

Feb. 28 2014-March 1 2014

Firstpage

1

Lastpage

6

Abstract

This paper proposes an on-line transformerless UPS system based on the integrated power electronics converters that is able to control the input power factor, charge the battery, and guarantee backup operation in the case of utility power outage. The main advantages of the proposed UPS are: 1) active power factor correction (PFC) without any feedback control, and 2) integrated functions of the battery charger circuit and PFC by using only three power switches. Details regarding the operation modes of the system and modulation strategy are presented. Simulation results are presented to validate the theoretical expectations.

Keywords

power convertors; power factor correction; uninterruptible power supplies; PFC; active power factor correction; battery charger circuit; input power factor; integrated power electronic converters; modulation strategy; online transformerless UPS system; power switches; transformerless integrated power converter; uninterrupted power supply; utility power outage; Batteries; Capacitors; Pulse width modulation; Reactive power; Switches; Uninterruptible power systems; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Conference at Illinois (PECI), 2014

Conference_Location

Champaign, IL

Type

conf

DOI

10.1109/PECI.2014.6804561

Filename

6804561