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2018 | OriginalPaper | Chapter

Single Phase Asymmetric Switched-Inductor Quasi-Z-Source CHB Multilevel Inverter

Authors : G. Prem Sunder, B. Shanthi, Alamelu Nachiappan, S. P. Natarajan, Padmanaban Sanjeevikumar

Published in: Advances in Power Systems and Energy Management

Publisher: Springer Singapore

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Abstract

Asymmetric Switched-Inductor Quasi-Z-Source Cascaded H-Bridge Multilevel Inverter (A-SL-qZS-CHB-MLI) with seven-level high-boosted load voltage is discussed in this article. Each unit of the proposed A-SL-qZS-CHB-MLI is comprised of a Quasi-Z-Source (qZS) network with SL cell and H-Bridge unit. The SL cell is formed with three diodes and two inductors. The qZS network facilitates the operation of shoot-through (ST) state control to provide boosted output voltage. The inclusion of SL cell increases the boosted output for the same ST duty ratio as compared with conventional qZS-CHB-MLI. The performance analysis of this topology in connection with THD for load voltage obtained from simple boost control and multicarrier PWM method is presented. Simulation results obtained from the proposed A-SL-qZS-CHB-MLI reveals high boost output voltage with reduced THD as compared with the traditional qZS-CHB-MLI.

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Title: Single Phase Asymmetric Switched-Inductor Quasi-Z-Source CHB Multilevel Inverter
Authors: G. Prem Sunder
B. Shanthi
Alamelu Nachiappan
S. P. Natarajan
Padmanaban Sanjeevikumar
Publisher: Springer Singapore
Book: Advances in Power Systems and Energy Management
Print ISBN: 978-981-10-4393-2

Electronic ISBN: 978-981-10-4394-9

Copyright Year: 2018
DOI: https://doi.org/10.1007/978-981-10-4394-9_29