NDLI: Symmetric and asymmetric transformer based cascaded multilevel inverter with minimum number of components

Content Provider	IET Digital Library
Author	Farakhor, Amir Ahrabi, Rouzbeh Reza Ardi, Hossein Ravadanegh, Sajad Najafi
Abstract	In this study, a novel transformer based cascaded multilevel inverter is presented. The proposed inverter can operate in both symmetric and asymmetric topologies. The presented inverter benefits from the advantages such as reduced number of power switches and reduced total peak inverse voltage of the switching components. The numbers of insulated gate driver circuits are also decreased with respect to the power switches. Furthermore, the presented topology requires just a single DC source. In addition, the numbers of on-state switches in the current paths are reduced. Therefore the voltage drops across the switches are mitigated and as a result the efficiency of the presented inverter is improved. The mentioned advantages cause the implementation cost to be reduced. The operation of the converter is discussed thoroughly for both symmetric and asymmetric operations. The feasibility of the presented inverter topology is validated using the simulation results. Experimental results under 1.5 kW are also added to justify the theoretical analyses.
Starting Page	1052
Ending Page	1060
Page Count	9
ISSN	17554535
Volume Number	8
e-ISSN	17554543
Issue Number	Issue 6, Jun (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/8/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0378
Journal	IET Power Electronics
Publisher Date	2015-03-13
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Asymmetric Topology Asymmetric Transformer Based Cascaded Multilevel Inverter Driver Circuit Inductors And Transformer Insulated Gate Driver Circuit Inverter Topology Invertors On-state Switches Power Electronics Power Semiconductor Device Power Semiconductor Switches Power Supply Power Switch Reduced Total Peak Inverse Voltage Supervisory Circuit Switching Component Transformer Voltage Drops
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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