Title :
Power Quality Improvements in Isolated Twelve-Pulse AC-DC Converters Using Delta/Double-Polygon Transformer
Author :
Singh, Bhim ; Gairola, Sanjay ; Chandra, Ambrish ; Al-Haddad, Kamal
Author_Institution :
Indian Inst. of Technol., New Delhi
Abstract :
This paper presents twelve-pulse AC-DC converters for constant current applications. The delta/delta-star transformer based 12-pulse AC-DC converter doesn´t meet power quality requirements. To overcome this drawback, a delta/double polygon transformer based AC-DC converter is designed, simulated and developed to compare its performance in terms of power quality parameters with that of delta/delta-star transformer based AC-DC converter. To meet power quality requirement over wide range of load variation, pulse doubling technique is used to make it 24-pulse AC-DC converter.
Keywords :
AC-DC power convertors; power transformers; constant current applications; delta-double-polygon transformer; delta-star transformer; isolated twelve-pulse AC-DC converters; power quality improvements; AC-DC power converters; Bridge circuits; Diodes; Insulated gate bipolar transistors; Isolation technology; Passive filters; Power quality; Power transformer insulation; Pulse transformers; Rectifiers; 12-pulse; AC-DC converter; Delta/Double Polygon Transformer; power quality;
Conference_Titel :
Power Electronics Specialists Conference, 2007. PESC 2007. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-0654-8
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2007.4342471
