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Modelling and simulation of 6-pulse and 12-pulse rectifiers under balanced and unbalanced conditions with impacts to input current harmonics

Hernadi, Arief and Taufik, Taufik and Anwari, Makbul (2008) Modelling and simulation of 6-pulse and 12-pulse rectifiers under balanced and unbalanced conditions with impacts to input current harmonics. In: Seminar Kebangsaan Pendidikan Sains dan Matematik, 2008, Kuala Lumpur.

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Abstract

This paper discusses the impact of using 6-pulse and 12-pulse rectifier circuit commonly found in Adjustable Speed Drives. The 12-pulse topology is known to be more expensive, but produce the least input current harmonics. However, the latter statement is completely true under balanced line conditions. In practice, the lines are inherently unbalanced. Hence, the question of whether the 12-pulse rectifier will indeed perform better in terms of the harmonics injected to the line is still under on-going discussions. This paper presents the modeling and simulation of both rectifier topologies to compare their input current harmonics. The rectifiers are modeled using OrCAD Pspice and several common cases of line conditions will be simulated to compare their harmonic levels. Results of the simulations pertaining to their Total Harmonic Distortions for each case will be explored.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:16001
Deposited By: Siti Khairiyah Nordin
Deposited On:13 Oct 2011 14:53
Last Modified:13 Oct 2011 14:53

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