ISSN: 2349-5162 | Impact Factor: 5.87

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Published in:

Volume 4 Issue 9
September-2017
eISSN: 2349-5162

Unique Identifier

JETIR1709012

Page Number

53-63

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Title

Hybrid Symmetric and Asymmetric Cascaded Multilevel Inverters with Modified PWM Operation

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Abstract

When asymmetrical inverter is operated in PWM mode it gives high value of total harmonic distortion (THD) which is mainly due to unequal pulses in the each stage of multilevel output. To avoid this hybrid asymmetrical inverter is proposed in this paper with asymmetrical and symmetrical parts. The main objective is to get the same THD value in asymmetrical inverter as same level symmetrical inverter when both are operated in PWM mode. Hybrid symmetrical inverter is proposed with modified PWM technique and it can be used in symmetric part of the hybrid asymmetric inverter. Further in this paper a novel operation called as modified PWM operation is proposed for cascaded multilevel inverters in order to decrease high frequency switches in these inverters. This proposed inverter uses few levels at high frequency and remaining at low frequency. Henceforth this proposed PWM operation which uses more number of low frequency switches gives the same output as that obtained without using this modified PWM operation. This decreases the cost of the inverter and increases the reliability of the inverter.

Key Words

Cascaded multilevel inverter, Hybrid asymmetrical inverter, Hybrid symmetrical inverter, Pulse width modulation, Total harmonic distortion

Cite This Article

"Hybrid Symmetric and Asymmetric Cascaded Multilevel Inverters with Modified PWM Operation", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 9, page no. pp53-63, September-2017, Available at : www.jetir.org & http://www.jetir.org/JETIR1709012

Publication Details

Published Paper ID: JETIR1709012
Registration ID: 170610
Published In: Volume 4 | Issue 9 | Year September-2017
DOI (Digital Object Identifier):
Page No: 53-63
ISSN Number: 2349-5162

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UGC and ISSN Approved Journal | Call For Paper
(Volume 4 | Issue 11 | November 2017 |Impact factor 5.87)

Call For Paper | Volume 4 | Issue 11 | Impact factor 5.87


Important Dates Related to Publication Procedure:
  • » Paper Submission Till: 29 November 2017.
  • » UGC and ISSN Approved Journal
  • » Review (Acceptance/Rejection) Notification: Within 02-04 Days.
  • » Paper Publish:Within 02-07 Days after submitting the all documents.
  • » Frequency: Monthly (12 issue Annually)
  • » Journal Type : Open Access
  • » Publication Charges : 1300 INR
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