NDLI: Transformer-based inverter with reduced number of switches for renewable energy applications

Content Provider	IET Digital Library
Author	Gandomi, Amin Ashraf Saeidabadi, Saeid Hosseini, Seyed Hossein Babaei, Ebrahim Sabahi, Mehran
Abstract	Multilevel inverters generate high-level voltage with high quality and low-harmonic distortion, and these unique properties have increased their applications in renewable energy sources. However, these inverters require several passive components and a complex pulse width modulation (PWM) control method. Besides, they suffer from voltage balancing problems. In this work, a new inverter has proposed that generates seven-level voltage from one DC source by reduced number of switches which does not exhibit any voltage balancing problem. The proposed inverter without any extra boost circuit is able to increase the input voltage. The voltage stress on all the switches in the proposed inverter is the same. In this study, variable amplitude phase disposition PWM control method that is compatible with the proposed inverter is developed. Moreover, extended structure of the proposed inverter and its new algorithm in generating all odd and even voltage levels are proposed. To validate the performance of the inverter, a prototype has been built and tested and also its performance has been modelled using PSCAD/EMTDC software package. Very good agreement has been achieved between experimental results and simulations.
Starting Page	1875
Ending Page	1884
Page Count	10
ISSN	17554535
Volume Number	8
e-ISSN	17554543
Issue Number	Issue 10, Oct (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/8/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0768
Journal	IET Power Electronics
Publisher Date	2015-08-10
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Complex Pulse Width Modulation Control Method Control Engineering Computing Control of Electric Power System EMTDC Software Package Energy ReSource Energy ReSource And Fuels High Quality Distortion High-level Voltage Generation Low-harmonic Distortion Multilevel Inverter Passive Component Power Engineering Computing Power Semiconductor Device Power Semiconductor Switches Power Transformer PSCAD Software Package PWM Invertors Renewable Energy Application Renewable Energy Source Seven-level Voltage Generation Switch Number Reduction Transformer And Reactors Transformer-based Inverter Variable Amplitude Phase Disposition PWM Control Method Voltage Balancing Problem Voltage Control Voltage Stress
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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