Power-quality improvements in vector-controlled induction motor drive employing pulse multiplication in AC-DC converters

Author

Singh, Bhim ; Bhuvaneswari, G. ; Garg, Vipin

Author_Institution

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

Volume

21

Issue

3

fYear

2006

fDate

7/1/2006 12:00:00 AM

Firstpage

1578

Lastpage

1586

Abstract

This paper deals with the pulse doubling in a 12-pulse ac-dc converter for improving power quality in vector-controlled induction motor drives (VCIMDs). The design of proposed magnetics shows the flexibility in varying the voltage ratio of the autotransformer for making it suitable for retrofit applications, where presently a six-pulse diode bridge rectifier is being used. The proposed ac-dc converter is capable of eliminating up to 21st harmonics in the supply current. The effect of load variation on VCIMD is also studied to demonstrate the effectiveness of the proposed ac-dc converter. A set of power quality indices on input ac mains and on dc bus for a VCIMD fed from proposed ac-dc converter are also given to compare its performance with six-pulse and twelve-pulse ac-dc converters.

Keywords

AC-DC power convertors; autotransformers; bridge circuits; harmonics suppression; induction motor drives; machine vector control; maintenance engineering; power supply quality; rectifying circuits; AC-DC converters; autotransformers; harmonics elimination; power quality improvements; pulse doubling; pulse multiplication; retrofit applications; six-pulse diode bridge rectifier; vector controlled induction motor drives; AC-DC power converters; Bridge circuits; Current supplies; Diodes; Induction motor drives; Load management; Magnetics; Power quality; Rectifiers; Voltage; Autotransformer; multipulse ac–dc converter; pulse multiplication; vector-controlled induction motor drive (VCIMD);

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2006.874660

Filename

1645203