Research Article
Nikhil Kumar Sharma · Naveen Kumar Sahu
Journal
International Journal of Digital Applications and Contemporary Research (IJDACR)
ISSN
2319-4863
Volume / Issue
Vol.4 · Issue 2
Published
September 2015
Access
Open Access
Licence
CC BY-NC-SA 4.0
As the conventional sources of energy are exhausting rapidly, the demand of renewable sources are increasing day by day. The major problems associated with these sources are voltage imbalance, harmonic content and switching losses due to the power electronics converter connected to these sources. The waveform of practical inverters are non-sinusoidal and contains certain harmonics, but for many applications such as high power application, various industries which involves use of machines and fans,sinusoidal supply with low distortion are required. This paper is aimed at investigating and analyzing effect of total harmonic distortion and its elimination using multilevel inverter. Simulation study of the output voltage waveform of 2-level, 3-level and 5-level three-phase diode clamped converters using sinusoidal pulse width modulation technique has been done and total harmonic distortion (THD) of all the levels are compared. The results obtained by varying the switching frequency of inverter is also compared.The record shows that as the number of level increases, total harmonic distortion decreases and quality of output voltage improves.
Nikhil Kumar Sharma, Naveen Kumar Sahu (2015). Analysis of Total Harmonic Distortion and its Elimination by Multilevel Inverter. International Journal of Digital Applications and Contemporary Research (IJDACR), Vol.4, Issue 2. ISSN: 2319-4863.
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