A current injection based twelve-pulse rectifier

Author

Pejovic, Predrag ; Nishida, Yasuyuki

Author_Institution

Fac. of Electr. Eng., Univ. of Belgrade, Belgrade

fYear

2008

fDate

15-19 June 2008

Firstpage

3603

Lastpage

3609

Abstract

A three-phase twelve-pulse rectifier that applies current injection to reduce the input current total harmonic distortion (THD) is proposed. In absence of losses, the input currents are the same as in conventional twelve-pulse rectifiers, with the THD equal to 15.22%. The current injection system applies a voltage-loaded resistance emulator, consisting of a transformer and two diodes. Piecewise linear model of the rectifier, suitable for numerical simulation, is developed. Optimization of the resistance emulator transformer turns ratio is performed. It is shown that losses in the current injection system considerably affect the input current THD and volt-ampere ratings of applied magnetic components. The results are experimentally verified on a rectifier with the rated power of 3 kW.

Keywords

harmonic distortion; power semiconductor diodes; power transformers; rectifying circuits; THD; current injection system; input current total harmonic distortion; magnetic components; piecewise linear model; power 3 kW; power diode; power transformer; resistance emulator transformer turns ratio; three-phase twelve-pulse rectifier; volt-ampere ratings; voltage-loaded resistance emulator; Bridge circuits; Diodes; Educational institutions; Numerical simulation; Piecewise linear techniques; Power system restoration; Rectifiers; Resonance; Total harmonic distortion; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2008. PESC 2008. IEEE

Conference_Location

Rhodes

ISSN

0275-9306

Print_ISBN

978-1-4244-1667-7

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2008.4592514

Filename

4592514