NDLI: Extended high step-up structure for multilevel converter

Content Provider	IET Digital Library
Author	Alishah, Rasoul Shalchi Hosseini, Seyed Hossein Babaei, Ebrahim Sabahi, Mehran Zare, Asghar
Abstract	This study presents a new high step-up multilevel converter topology. The proposed multilevel converter comprises of two dc voltage sources, several capacitors, unidirectional switches, and power diodes. The proposed topology can increase the values of input dc voltage sources substantially. The voltage gain of the proposed topology depends on the number of used capacitors. The proposed topology is simple and can be extended to produce higher-output voltage levels. The values of two used dc voltage sources can be selected as symmetric and asymmetric. In symmetric type, the values of two dc sources are similar. However, the dc sources magnitudes in asymmetric type are unequal and their values are obtained based on mathematical method. Inherent voltage balancing of used capacitors is an important feature of the proposed topology. The proposed topology is compared with other recently proposed high step-up multilevel converters and conventional topologies in terms of the number of used switches, capacitors, dc sources, and voltage on switches. It is indicated that the proposed structure requires the least number of devices and the voltage rating on power switches is low. The performance of the proposed topology and theoretical analysis are confirmed using experimental works.
Starting Page	1894
Ending Page	1902
Page Count	9
ISSN	17554535
Volume Number	9
e-ISSN	17554543
Issue Number	Issue 9, Jul (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/9/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2015.0893
Journal	IET Power Electronics
Publisher Date	2016-07-27
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	DC Sources Magnitudes High Step-up Multilevel Converter Topology Mathematical Analysis Mathematical Method Power Converter Power Diode Power Electronics Power Semiconductor Device Power Semiconductor Diode Power Semiconductor Switches Power Supplies to Apparatus Power Supply Power Switch Relay And Switches Supervisory Circuit Unidirectional Switches Voltage Source
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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