Harmonic mitigator based on 12-pulse ac-dc converter for switched mode power supply

Author

Kalpana, R. ; Bhuvaneswari, G. ; Singh, Bawa ; Singh, Sushil

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., New Delhi, India

Volume

3

Issue

6

fYear

2010

Firstpage

947

Lastpage

964

Abstract

A novel harmonic mitigator based on the 12-pulse ac-dc converter, which is capable of suppressing up to 11th harmonics, is presented with reduced magnetic rating and low total harmonic distortion (THD) of ac mains current. A set of power quality indices on input ac mains and magnetic ratings for various autoconnected transformer configurations for the 12-pulse converter feeding a low voltage, high current and 12-kW switched mode power supply is also presented so that the best autoconnected transformer configuration can be chosen according to the requirements for this application. A laboratory prototype of the proposed ac-dc converter is developed and the test results are presented to validate the design and model of the converter system.

Keywords

AC-DC power convertors; harmonic distortion; harmonics suppression; power transformers; switched mode power supplies; 12-pulse AC-DC converter; autoconnected transformer; converter system; harmonic mitigator; harmonic suppression; magnetic ratings; power 12 kW; switched mode power supply; total harmonic distortion;

fLanguage

English

Journal_Title

Power Electronics, IET

Publisher

iet

ISSN

1755-4535

Type

jour

DOI

10.1049/iet-pel.2009.0325

Filename

5618883