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Performance Analysis of Higher Order Cascaded H-Bridge Multilevel Inverters

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Performance Analysis of Higher Order Cascaded H-Bridge Multilevel Inverters


Ms. Komal Shende | Dr. HariKumar Naidu | Prof. Vaishali Pawade

https://doi.org/10.31142/ijtsrd14456



Ms. Komal Shende | Dr. HariKumar Naidu | Prof. Vaishali Pawade "Performance Analysis of Higher Order Cascaded H-Bridge Multilevel Inverters" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4, June 2018, pp.1850-1856, URL: https://www.ijtsrd.com/papers/ijtsrd14456.pdf

Cascade H-Bridge Multilevel Inverters are very popular and have many applications in electric utilities and for industrial drives. When these inverters are used for industrial drives directly, the Total Harmonic Distortion (THD) in the output voltage of inverters is very significant as the performance of drive depends very much on the quality of voltage applied to drive. A Multilevel Inverter in high power ratings improves the performance of the system by reducing Harmonics. This paper presents the simulation of single phase nine level and eleven level inverters. Detailed analysis of these inverters has been carried out and compared with different loads. PWM control strategy is applied to the switches at appropriate conducting angles with suitable delays. These different level inverters are realized by cascade H-Bridge in MATLAB/SIMULINK. The inverters with a large number of steps can generate high quality voltage waveforms. The THD depends on the switching angles for different units of Multilevel Inverters.

Cascaded H-bridge inverter, Pulse Width Modulation (PWM), Total Harmonic Distortion (THD)


IJTSRD14456
Volume-2 | Issue-4, June 2018
1850-1856
IJTSRD | www.ijtsrd.com | E-ISSN 2456-6470
Copyright © 2019 by author(s) and International Journal of Trend in Scientific Research and Development Journal. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (http://creativecommons.org/licenses/by/4.0)

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