Open AccessDesign and Implementation of an Asymmetric Cascaded H-bridge Fifteen Level Inverter with Minimum Number of Switches for Smart Grid Applications
Author(s) -
Parul Gaur,
Yajvender Pal Verma,
Preeti Singh
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1033/1/012046
Subject(s) - inverter , total harmonic distortion , h bridge , harmonics , waveform , electronic engineering , voltage , grid tie inverter , computer science , network topology , reliability (semiconductor) , topology (electrical circuits) , grid , engineering , electrical engineering , power (physics) , maximum power point tracking , mathematics , computer network , physics , quantum mechanics , geometry
Multilevel inverters are nowadays getting more and more attention in the industrial world due to the attractive features offered by the multilevel inverters. However, usage of more semiconductor switches in the higher levels of these inverters poses a restriction to its wider applications in the industries. Therefore, a novel fifteen level inverter of cascaded H-bridge topology is being designed and implemented, that incorporates the minimum number of switches, thus confirms the reduction in size, minimum switching losses and further reduction in overall cost of the multilevel inverter. The foremost concern of the suggested work is to improve the efficiency and quality of the desired voltage waveform of the multilevel inverter using the effective controlling strategies keeping harmonics at a lower level. The control methods are applied to the fifteen level inverter for further improvement in the voltage regulation and thereby lead to the better efficiency, reliability and economic improvement. The performance assessment of the implemented fifteen level inverter has been done in respect of the total harmonic distortion and switching losses and is compared with the other existing topologies. The implemented inverter is well suited for drive, renewable energy and smart grid applications.