Research on 18-pulse rectifier based on a boost star-fork connected autotransformer

Author

Liu, Baoqi ; Duan, Shanxu ; Qiu, Chun

Author_Institution

State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2011

fDate

20-23 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

An 18-pulse rectifier based on a step-up or step-down autotransformer in star-fork connection is presented. The voltage vector diagram of the autotransformer is given out and the connection of windings is also analyzed. By arrangement the secondly windings properly, the output voltage can be set in a wide range below or above the 3-phase uncontrolled rectifier with a low THD in the input current. Key analysis and results obtained via the Matlab simulation and some experimental results are presented for validation of the presented work.

Keywords

autotransformers; harmonic distortion; rectifying circuits; transformer windings; vectors; 18-pulse rectifier; 3-phase uncontrolled rectifier; Matlab simulation; THD; boost star-fork connected step-down autotransformer; boost star-fork connected step-up autotransformer; voltage vector diagram; winding connection; Harmonic analysis; Inductors; Mathematical model; Power supplies; Rectifiers; Vectors; Windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4577-1044-5

Type

conf

DOI

10.1109/ICEMS.2011.6073999

Filename

6073999