Extended Delta Based 15-Phase AC-DC Converter for Variable Frequency Induction Motor Drives

Vipin Garg; Bhim Singh; G. Bhuvaneswari

doi:10.2202/1553-779X.1444

Article

Extended Delta Based 15-Phase AC-DC Converter for Variable Frequency Induction Motor Drives

Vipin Garg , Bhim Singh and G. Bhuvaneswari

Published/Copyright: November 21, 2007

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From the journal International Journal of Emerging Electric Power Systems Volume 8 Issue 5

This paper presents the design and analysis of a multi-phase ac-dc converter system for harmonic reduction at the point of common coupling (PCC) in vector controlled induction motor drives (VCIMD's). The design of the proposed 3-phase to 15-phase autotransformer is presented along with the VCIMD. The proposed 15-phase ac-dc converter is found capable of suppressing up to the 29th harmonic in the supply current, along with the power factor improvement close to unity in the wide operating range of the drive. 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 existing 6-pulse and proposed 15-phase ac-dc converters are also given to compare their performance.

Keywords: autotransformer; multiphase AC-DC converter; power quality; VCIMD

Published Online: 2007-11-21

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Articles in the same Issue

https://doi.org/10.2202/1553-779X.1444

Keywords for this article

autotransformer; multiphase AC-DC converter; power quality; VCIMD