High-efficiency large-capacity uninterruptible power supply using bidirectional-switch-based NPC multilevel converter

Author

Lee, TingAn ; Oshita, Masahiro Kin ; Sanada, Kazunori

Author_Institution

Toshiba Mitsubishi Electr. Ind. Syst. Corp., Kobe, Japan

fYear

2011

fDate

May 30 2011-June 3 2011

Firstpage

2100

Lastpage

2105

Abstract

This paper discusses the design and realization of a high-efficiency large-capacity uninterruptible power supply (UPS) 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

switching convertors; uninterruptible power supplies; bidirectional-switch-based three-level NPC multilevel power converter; high-efficiency large-capacity UPS; high-efficiency large-capacity uninterruptible power supply; neutral point clamp; power electronic technology; size-weight reduction; voltage circuit; Inductors; Inverters; Pulse width modulation; Switches; Topology; Uninterruptible power systems; Voltage control; UPS; bidirectional switch NPC; high efficiency; three level;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on

Conference_Location

Jeju

ISSN

2150-6078

Print_ISBN

978-1-61284-958-4

Electronic_ISBN

2150-6078

Type

conf

DOI

10.1109/ICPE.2011.5944525

Filename

5944525