Performance Evaluation of Cascaded and Reduced Switch Multilevel Inverter Using Modified Carrier Based PWM Technique

Authors

  • Md Tariqul Islam Lecturer, Department of Electrical and Electronic Engineering, Green University of Bangladesh, Dhaka, Bangladesh
  • Md Fayzur Rahman Professor, Electrical and Electronic Engineering Department, Green University of Bangladesh, Dhaka, Bangladesh
  • AA Md Monzur Ul Akhir Assistant Professor, Electrical and Electronic Engineering Department, Green University of Bangladesh, Dhaka, Bangladesh
  • Zisun Ahmed Lecturer, Department of Electrical and Electronic Engineering, Green University of Bangladesh, Dhaka, Bangladesh

DOI:

https://doi.org/10.3329/gubjse.v6i1.52045

Keywords:

Multilevel Inverter, Total Harmonic Distortion, Modified carrier, Conventional carrier, Modulation Algorithm, Inverter loss, Level shifted topology, Cascaded seven level inverter, Reduced switch seven level inverter, MATLAB/Simulink

Abstract

This paper proposes an improved harmonic distorted modified triangular carrier-based multicarrier pulse width modulation for generating the switching pulses of a multilevel inverter. This modified triangular wave consists of a triangular wave bearing a close resemblance to an ‘M’ shaped wave. The design of this carrier signal has been optimized to maintain a low level of total harmonic distortion (THD), while increasing the fundamental o/p voltage to ensure the effective DC voltage utilization. Moreover, this optimization reduces the switching losses and improve the efficiency of the power inverter. With the help of this carrier signal, High-frequency alternative phase opposition disposition pulse width modulation (APODPWM) is generated. This new control scheme has been applied to seven levels of conventional cascaded H-bridge with reduced switch multilevel inverter. The output is compared with conventional carrier-based APODPWM. The comparison is made in terms of THD, fundamental output voltages and inverter losses. To ensure quality performance, conventional carrier and modified carrier-based multicarrier PWM topologies are used for the Cascaded seven-level inverter with reduced switch seven-level inverter having a carrier frequency of 2 kHz and modulation index of 0.8-1.30. According to the simulation results, by using the proposed modulation scheme the THD and the switching loss were reduced by 9.64[%] and 4.2[%] respectively. Besides, the proposed modulation technique increases the fundamental output voltages. The total simulation process is done in MATLAB Simulink environment.

GUB JOURNAL OF SCIENCE AND ENGINEERING, Vol 6(1), Dec 2019 P 12-19

Downloads

Download data is not yet available.
Abstract
319
PDF
273

Downloads

Published

2020-10-13

How to Cite

Islam, M. T., Rahman, M. F., Ul Akhir, A. M. M., & Ahmed, Z. (2020). Performance Evaluation of Cascaded and Reduced Switch Multilevel Inverter Using Modified Carrier Based PWM Technique. GUB Journal of Science and Engineering, 6(1), 12–19. https://doi.org/10.3329/gubjse.v6i1.52045

Issue

Vol. 6 No. 1 (2019)

Section

Articles

License

Authors who publish in the GUB Journal of Science and Engineering agree to the following terms that:

  1. Authors retain copyright and grant the GUB Journal of Science and Engineering the right of first publication of the work.
  2. image
    Articles in GUB Journal of Science and Engineering are licensed under a Creative Commons CC BY-NC-ND License Attribution-NonCommercial-NoDerivatives 4.0 International License. This license permits Share — copy and redistribute the material in any medium or format.

Copyright and Reprint Permissions

  1. Individual contributions contained in it are protected by the copyright of Green University of Bangladesh.
  2. Photocopies of this journal in full or parts for personal or classroom usage may be allowed provided that copies are not made or distributed for profit or commercial advantage and the copies bear this notice and the full citation.
  3. Copyright for components of this work owned by others must be honored. Abstracting with credit is permitted.
  4. Specific permission of the publisher and payment of a fee are required for multiple or systemic copying, advertising or promotional purposes, resale, republishing, posting on servers, redistributing to lists and all forms of document delivery.
  5. Subscribers may reproduce a table of contents or prepare lists of articles including abstracts for internal circulation within their institutions.
  6. Permission of the Publisher is required for resale and distribution outside the institution. Permission of the publisher is required for all other derivative works, including compilations and translations.
  7. Except as outlined above, no part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, such as electronic, mechanical, photocopying, magnetic recording or otherwise, without prior written permission of the publisher.
  8. Permissions may be sought directly from the office of the executive editor of GUB Journal of Science and Engineering through E-mail at gubjse@fse.green.edu.bd.

Notice

  • Responsibility for the contents of an article rests upon the author(s) and not upon the editor or the publisher. Therefore, on responsibility is assumed by the publisher for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, product instructions or ideas contained in the material herein.