High-efficiency large-capacity uninterruptible power supply for 3-phase 4-wire power system

Author

Lee, TingAn ; Kinoshita, Masahiro ; Sanada, Kazunori

Author_Institution

Power Electron. Syst. Div., Toshiba Mitsubishi-Electr. Ind. Syst. Corp., Kobe, Japan

Volume

2

fYear

2012

fDate

2-5 June 2012

Firstpage

1131

Lastpage

1136

Abstract

This paper discusses design and realization of multilevel uninterruptible power supply (UPS) for 3-phase 4-wire system by using bidirectional-switch-based three-level NPC multilevel power converter. The benefits of three-level topology for low voltage circuits are provided as a motivation for its application in UPS systems. As a result, the novel UPS features higher efficiency and effective size/weight reduction and hence aims to contribute to greening IT facilities with up-to-date power electronics technology.

Keywords

power convertors; power electronics; uninterruptible power supplies; 3-phase 4-wire power system; IT facilities; UPS systems; bidirectional-switch-based three-level NPC multilevel power converter; high-efficiency large-capacity uninterruptible power supply; low voltage circuits; multilevel uninterruptible power supply; three-level topology; up-to-date power electronics technology; Field programmable gate arrays; Inverters; Pulse width modulation; Redundancy; Switches; TV; UPS; bidirectional switch NPC; high efficiency; three level;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (IPEMC), 2012 7th International

Conference_Location

Harbin

Print_ISBN

978-1-4577-2085-7

Type

conf

DOI

10.1109/IPEMC.2012.6258979

Filename

6258979