Paper Title :Five Level Dc-Dc Converter With Asymmetrical Control Strategy For High Power Applications
Author :Vaka S Sandeep Kumar Reddy, Saleem Pasha
Article Citation :Vaka S Sandeep Kumar Reddy ,Saleem Pasha ,
(2016 ) " Five Level Dc-Dc Converter With Asymmetrical Control Strategy For High Power Applications " ,
International Journal of Electrical, Electronics and Data Communication (IJEEDC) ,
pp. 12-16,
Volume-4,Issue-9
Abstract : In this paper an asymmetrical duty cycle control strategy was proposed to the TPTL dc/dc converter. The
modified converter remains all the advantages of original control strategy; meanwhile, soft-switching can be achieved using
the energy stored in output filter inductance and leakage inductances of transformers (or resonant inductances).Three-phase
three-level (TPTL) dc/dc converter has the advantages of lower voltage and current stress on switches, which is suitable for
high power and high input voltage applications. Adopting a symmetrical control strategy, the ripple frequency of input and
output current can be increased significantly, resulting in a reduced filter requirement. To further reduce the current stress on
switches for higher power. The improved resonant converter features zero-voltage-switching (ZVS) realization under wide
load range and higher conversion efficiency. However, wide variation in switching frequency should be concerned in the
applications with wide input/output voltage range. Other alternative solutions are the non resonant soft-switching threephase
converters, the upper and lower commutation cell switches are subjected to different current stresses is improved by
using MAT Lab/Simulink. The proposed concept can be implemented with five level topology using Matlab/simulink
software.
Keywords— Asymmetrical, Current Stress, Switching frequency, TPTL, ZVS.
Type : Research paper
Published : Volume-4,Issue-9
DOIONLINE NO - IJEEDC-IRAJ-DOIONLINE-5597
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Copyright: © Institute of Research and Journals
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Published on 2016-10-04 |
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