A Simplified Optimal THD Modulation Algorithm for Multi Level Inverter with Reduced Components
V. Karthikeyan1, V. Jamuna2

1V. Karthikeyan, Department of Electrical and Electronics Engineering Marine, AMET University, East Coast Road, Kanathur, Chennai (Tamil Nadu), India.
2V. Jamuna, Department of Electrical and Electronics Engineering, Jerusalem College of Engineering, Velachery Main Road, Narayanapuram, Chennai (Tamil Nadu), India.
Manuscript received on 06 February 2019 | Revised Manuscript received on 19 February 2019 | Manuscript Published on 04 March 2019 | PP: 200-204 | Volume-7 Issue-5S2 January 2019 | Retrieval Number: ES2030017519/19©BEIESP
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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: Applications of multi level inverters have been broadly accepted for high power AC drives purposes. In this paper a multi level inverter with reduced number of components has been designed. The power quality of the output waveforms are controlled by proper selection of switching angles for different levels of the output. A simplified optimal THD modulation algorithm is used to calculate the proper switching angles of the output. This algorithm greatly reduces the computational efforts required than the conventional computation methods and also produces better output performances. The simulation model of 9-level asymmetrical inverter with reduced number of components is built to validate its operation and the results are presented.
Keywords: Multi Level Inverter, Reduced Number of Components, Optimal THD Modulation, and Harmonic Distortion.
Scope of the Article: Algorithm Engineering