Title :
Design and Analysis of an Autotransformer Based 24-Pulse Rectifier
Author :
Wu, Xiao-hua ; Cai, Peng-peng ; Zhang, Xiao-bin
Author_Institution :
Sch. of Autom., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
This paper presents the design and analysis of an autotransformer based 24-pulse rectifier. The proposed ac-dc converter is based on a star connected autotransformer, designed for producing 15-phase shifted ac voltages for 24-pulse rectifier for effective harmonic reduction. Compared with 3-phase rectifier, the proposed 24-pulse rectifier can reduce the equivalent capacity of transformers and realize the purpose of reducing the transformers´ bulk and weight in same power. Meanwhile the proposed method can greatly minish the total harmonic distortion (THD) of supply current and make it near sinusoidal in shape.
Keywords :
AC-DC power convertors; autotransformers; harmonic distortion; harmonics suppression; rectifying circuits; 24-pulse rectifier; 3-phase rectifier; AC-DC converter; THD; autotransformer analysis; effective harmonic reduction; phase shifted AC voltages; star connected autotransformer; total harmonic distortion; Analytical models; Bridge circuits; Harmonic analysis; Integrated circuit modeling; Power system harmonics; Rectifiers; Windings; 24-pulse rectifier; THD; autotransformer rectifier unit (atru); interphase transformers(IPT);
Conference_Titel :
Electrical and Control Engineering (ICECE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6880-5
DOI :
10.1109/iCECE.2010.858
