Open AccessMultilevel inverter topology based on series connected switched sources
Author(s) -
Gupta Krishna Kumar,
Jain Shailendra
Publication year - 2013
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2012.0209
Subject(s) - topology (electrical circuits) , waveform , network topology , inverter , power (physics) , matlab , series (stratigraphy) , h bridge , computer science , electronic engineering , engineering , voltage , electrical engineering , physics , paleontology , biology , quantum mechanics , operating system
A new topology for multilevel DC–AC conversion is presented in this study. It consists of isolated symmetric input DC sources alternately connected in opposite polarities through power switches. The structure allows synthesis of multilevel waveform using reduced number of power switches as compared to the classical topologies. The working principle of the proposed topology is explained with the help of a single‐phase five‐level inverter. Simulation studies are carried out in MATLAB/Simulink environment and experimental validations are obtained on a laboratory prototype. An exhaustive comparison of the proposed topology against the classical cascaded H‐bridge topology indicates reduction in number of power switches, losses, installation area and converter cost.