Title :
IGBT based high power DC-DC converters
Author :
Na Deng ; Xiao-Ping Zhang
Author_Institution :
Sch. of Electron., Electr. & Comput. Eng., Univ. of Birmingham, Birmingham, UK
Abstract :
In this paper, a type of high power DC-DC converter based on IGBT switches is proposed. Basically, the converter consists of two bidirectional IGBT bridges linked by a pair of energy storage capacitors. It is capable of MW power transfer and can achieve very high voltage ratios. Moreover, the converter can alleviate the overvoltage and overcurrent problems when a DC fault happens on either side. Both the theoretical analysis and control strategy are discussed. Besides, comparisons between the two types of high power DC-DC converters, which is IGBT based and thyristor based respectively, are made through comprehensive simulations.
Keywords :
DC-DC power convertors; HVDC power convertors; HVDC power transmission; overcurrent protection; overvoltage protection; power capacitors; power semiconductor switches; thyristors; DC fault; IGBT switches-based high power DC-DC converters; MW power transfer; energy storage capacitors; overcurrent problems; overvoltage problems; thyristor-based high power DC-DC converters; two bidirectional IGBT bridges; very high voltage ratios; DC-DC converters; MW power transfer; bidirectional power management; fault current management;
Conference_Titel :
AC and DC Power Transmission (ACDC 2012), 10th IET International Conference on
Conference_Location :
Birmingham
Electronic_ISBN :
978-1-84919-700-7
DOI :
10.1049/cp.2012.1984
