Novel transformer connection to improve current sharing in high current DC rectifiers

Submitted by OEST on May 10, 2015 - 5:28pm

Title	Novel transformer connection to improve current sharing in high current DC rectifiers
Publication Type	Conference Paper
Year of Publication	1993
Authors	Olivier G, April G-E, Ngandui E, Guimaraes C
Conference Name	Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE
ISBN Number	VO -
Keywords	3 kA, 30 V, Application software, Bridge circuits, Conductors, current sharing, DC rectifiers, Low voltage, Oil insulation, power converters, power convertors, power transformers, primary windings, pulse number, Pulse transformers, Rectifiers, rectifying circuits, Semiconductor device reliability, Semiconductor diodes, series connection, Thyristors, transformer windings, zigzag arrangement
Abstract	A novel, nonconventional family of power converters for low-voltage high-current applications based on a peculiar series connection of the primary windings is presented. On the secondary side, all the semiconductors are directly connected in parallel without resorting to the use of interphase transformers or any other current sharing means. The series connection of the primaries ensures current sharing while the zigzag arrangement provides the desired pulse number. Several prototypes were assembled to verify the validity of the theoretical analysis. All the results confirmed the analysis
DOI	10.1109/IAS.1993.299018