Diminution of Harmonics in a Cascaded Multilevel Inverter Using Third Harmonics Injection PWM Technique
S.Satish Kumar1, M.Sasi Kumar2

1S.Satish kumar, Research scholar, Sathyabama institute of science and technology, Chennai, (Tamil Nadu).
2Dr.M.Sasi kumar, Professor, Department of EEE,Jeppiaar Engineering College ,Chennai, (Tamil Nadu). 

Manuscript received on 02 August 2019. | Revised Manuscript received on 07 August 2019. | Manuscript published on 30 September 2019. | PP: 7493-7497 | Volume-8 Issue-3 September 2019 | Retrieval Number: C5072098319/19©BEIESP | DOI: 10.35940/ijrte.C5072.098319
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: This paper is deals the Asymmetric cascaded three phase hybrid multilevel inverter for ac motor application. This proposed hybrid three phase inverter is used to diminishes the no of semiconductor device requirement and enhances the power distribution of each H-bridge cell. The Third Harmonics Injection (THIPWM) with sinusoidal pulse width modulation (SPWM) are used to regulate the output voltage of the inverter, further incorporate the Phase disposition (PD) and Alternative Phase Opposition disposition PWM (APOD) techniques. This control technique is applied to minimize the current harmonic and get the better recital of the system. The circuit is simulated using Mat-lab Simu-link. The circuit performance such as THD, line voltage and phase voltage are compared using two hybrid modulation techniques and verified with simulation results.
Keywords: Multi Level Inverter, Third Harmonic Injection, Harmonic, Hybrid Inverter and Induction Motor.

Scope of the Article:
Computational Techniques in Civil Engineering