Enhanced pulsewidth modulation strategy of six-switch converter for single phase online uninterruptible power supply

Author

Feng Gao ; Nan Li ; Decun Niu ; Tianbao Zhang

Author_Institution

Sch. of Electr. Eng., Shandong Univ., Jinan, China

fYear

2013

fDate

3-6 June 2013

Firstpage

1315

Lastpage

1321

Abstract

This paper investigates the novel modulation method of six-switch back-to-back converter for the application of an online uninterruptible power supply. With an additional current direction judgment logic and related modulation adjustment, the total modulation index can be increased and consequently the overall losses and the voltage stress across semiconductors will decrease significantly, being much different from other modulation methods of the six-switch converter. Matlab simulation and experimental prototype are constructed to verify the performance of the proposed modulation method.

Keywords

PWM power convertors; switching convertors; uninterruptible power supplies; Matlab simulation; UPS; direction judgment logic; modulation adjustment; pulsewidth modulation strategy enhancement; semiconductors; single phase online uninterruptible power supply; six-switch back-to-back converter; total modulation index; voltage stress; Gold; Modulation; Stress; Switches; Topology; novel modulation method; on-line uninterruptible power supply; six-switch converter;

fLanguage

English

Publisher

ieee

Conference_Titel

ECCE Asia Downunder (ECCE Asia), 2013 IEEE

Conference_Location

Melbourne, VIC

Print_ISBN

978-1-4799-0483-9

Type

conf

DOI

10.1109/ECCE-Asia.2013.6579280

Filename

6579280